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Ｕnｉt 1safeｔy manaｇement ｓyｓtemＡcciｄent ｃａｕｓatｉon ｍoｄels ﻩ事故致因理论Ｓafety managemeｎt 安全管理Phｙsｉｃａｌｃonditions ﻩ物质条件Mａcｈinｅguａrdinｇﻩ机械保护装置Ｈouse—keepiｎｇ工作场所管理Ｔｏｐmanagement 高层管理人员Ｈuman ｅｒrorｓ人因失误Aｃcidenｔ-pｒonenｅss ｍｏdels 事故倾向模型Muniｔｉoｎs faｃtｏrｙﻩ军工厂Causal fａctorsﻩ起因Rｉskinｇtakiｎgﻩ冒险行为Coｒpｏraｔｅｃｕlture 企业文化Ｌosｓprevention 损失预防Prｏcess indusｔryﻩ制造工业Haｚard coｎtrol 危险控制Intensｉve ｓtudｙ广泛研究Orgａniｚationaｌperｆｏrmａnce 企业绩效Mｕtual trust 相互信任Sａfｅｔｙoffiｃerﻩ安全官员Ｓafeｔy commｉttee 安全委员会Ｓhop-fｌｏｏrﻩ生产区Unioniｚed company 集团公司Seｎioｒitｙﻩ资历、工龄Local ｃuｌturｅ当地文化Absenｔeｅiｓm rａｔｅﻩ缺勤率Power reｌａtioｎｓﻩ权力关系Stａtus review 状态审查Lower—ｌevel managemenｔ低层管理者Business pｅrformanceﻩ组织绩效Ｍｏst seniｏｒexｅcｕtiｖe 高级主管Superｖisory levｅl监督层Ｓａfety pｒincipｌeﻩ安全规则Waｌl—boarｄﻩ公告栏Imｐlement planﻩ执行计划Ｈazarｄidenｔificａtion 危险辨识Ｓａfeｔy pｅrfｏｒmance 安全性能One comｐrｅｈensｉve definition fｏr an orgaｎｉzatｉonａl cｕｌture ｈas been presentｅdｂｙＳｃhein wｈo has said thｅorganｉｚatiｏnal culturｅiｓ“a patteｒn ｏf baｓic asｓumptionｓ–inveｎｔed, dｉｓcovere ｄ，or deveｌoｐｅｄby ａgiven gｒｏup as iｔlearns to cope with iｔs pｒｏbｌｅms of exｔｅrnal adaｐｔａｔiｏn and inｔernal integratioｎ– that h ａs ｗorked weｌl enouｇｈto be consiｄereｄｖａliｄand,tｈｅrｅｆore, to beｔａught to new memｂeｒｓas the corrｅｃt way to peｒcｅive, thin ｋ,and feel in rｅlatiｏn to ｔhosｅｐrobｌemｓ”译文:Scheｉｎ给出了组织文化的广泛定义，他认为组织文化是由若干基本假设组成的一种模式,这些假设是由某个特定团体在处理外部适应问题与内部整合问题的过程中发明、发现或完善的.由于以这种模式工作的有效性得到了认可,因此将它作为一种正确的方法传授给新成员,让他们以此来认识、思考和解决问题[指适应外部与整合内部的过程中的问题]。
安全工程毕业论文中英文资料外文翻译文献译文：《关于安全评价的几点论述》安全性评价是综合运用安全工效学、安全系统工程等方法对企事业单位员工的安全意识与排故能力、设备的完好性与事故隐患、环境因素的现状及其存在的不安全因素等进行检查、预测和安全性评估,以确定企业的危险程度。
根据存在隐患的对象和部位,针对性地进行整改,将事故消灭于萌芽状态,防患于未然。
这对安全管理具有重要作用。
文章以机械加工企业为例来阐明安全性评价的原理和操作方法。
其它企业也可按行业特点仿此原理和方法提出自己的评价方案,均可收到安全生产的预期效果。
安全评价是对系统的危险性进行定性或定量分析,评价系统发生事故的可能性及严重度。
安全评价是安全管理和决策科学化的基础。
安全评价的内容包括:安全管理绩效评价,人的行为安全性评价,设备、设施的安全性评价,作业环境安全性评价,化学物品安全性评价等。
本文主要采用固有危险程度的定性定量分析和风险程度的定性定量分析方法。
从而得出分析结果，并指出了生产过程中可能出现的危险有害因素,进而提出了相应对策措施,为企业消除事故及安全生产可以提供保障。
通过一系列安全评价方法，得出相应的安全评价结果。
如运用了美国道化学公司的火灾爆炸指数法对供氧装置和供煤装置进行火灾爆炸危险等级评价，并得出了相应的安全补偿系数，同时也运用预先危险性分析法对厂内常见的伤害事故进行分析，得出了事故潜在危险。
一般企业或其它单位在设立时，或运行后都需要进行安全评价。
主要目的是根据企业的生产或拟设立的项目的情况，由相应的安全评价中介公司的评价师进行现场检查，针对安全上的不足，给出整改要求和措施，由企业进行整改，达到安全生产的目的。
评价师根据企业情况编制安全评价报告，经安监局审批后可以作为企业办理各种审批手续的重要资料。
安全评价分为安全预评价(在设立项目前进行)，安全现状评价和安全验收评价。
其中生产产品或副产品中有危险化学品的则要进行预评价和验收评价。
1 Why Do We Need Safety Engineering?我们为什么需要安全工程?It is difficult to open a newspaper or turn on the television and not be reminded how dangerous our world is.Both large-scale natural and man-made disasters seem to occur on an almost daily basis.只要打开报纸或电视，很难不让我们想到（无不在告诉）我们这个世界是多么危险。
大规模的自然灾害和人为灾害几乎每天都在发生.An accident at a plant in Bhopal, India, killed over 2,500 people.印度博帕尔市的一家工厂发生的事故造成了2500多人死亡A nuclear power plant in the Ukraine exploded and burned out of control, sending a r adioactive cloud to over 20 countries, severely affecting its immediate neighbors’ livestock and farming.乌克兰的一座核电站爆炸，并引发了火灾，形成的放射云覆盖了20多个国家，严重影响了邻国的畜牧业和农业。
Keeping safety is responsibility of safety engineers. Are you ready to struggle for human safety and happiness in your whole life?做好安全工作是安全工程师的责任，你准备好了为了人类的安全和幸福而奋斗终生吗？A total of 6.7 million injuries and illnesses in the United States were reported by private industry in 1993.1993年美国的私有企业报告的工伤和疾病总数达到六百七十万例。
Unit One安全管理safety management 事故致因accident causation 不安全行为unsafe acts不安全状态unsafe conditions企业安全文化corporate safety culture安全政策safety policyUnit Two系统安全工程system safety engineering 危险辩识hazard identification/identified危险控制hazard control 安全评价safety evaluation危险分析hazard analysis安全准则safety criteria Unit Three安全人机工程safety ergonomics 工作效率work efficiency工作压力job stressors伤害率injury rate人机过程ergonomics process职业伤残work injuryUnit Four工伤保险injury insurance 人因失误human error风险评估risk assessment人机系统ergonomics system工业事故industrial system事故类型accident types Unit Five职业安全健康occupational health and safety职业安全健康管理体系occupational health and safety management system危险源分析hazard analysis 事故分析accident analysis风险管理risk management职业伤害occupational injury Unit Six工业卫生industrial hygiene 物理危害physical hazards 化学危害chemical hazards非电离辐射non-ionizing radiation生物危害biological hazards职业病occupational diseaseUnit Seven安全文化safety culture企业文化corporate culture 高危行业high-risk industry事故率accident rate应急预案emergency plan安全评审safety review Unit Eight安全激励safety motivation 自我激励self-motivation个人需求individual demand 社会需求social needs安全氛围safety atmosphere 生理需求physiological needs。
安全工程的英语作文Security engineering is a critical field that involves the design, implementation, and maintenance of security measures to protect people, property, and information from harm or unauthorized access. In today's world, security engineering is more important than ever, as threats to security come in many forms, from cyber attacks to physical violence. This essay will explore the importance ofsecurity engineering and the role it plays in our lives.Firstly, security engineering is essential forprotecting people from harm. In public places like airports, train stations, and shopping malls, security measures such as metal detectors, CCTV cameras, and security personnel help to deter criminals and prevent terrorist attacks. Similarly, in workplaces and schools, security measureslike access control systems, emergency response plans, and fire alarms help to keep people safe in case of emergencies. Without these security measures in place, people would beat risk of injury or even death.Secondly, security engineering is crucial forprotecting property from theft and damage. In homes, businesses, and public buildings, security measures such as locks, alarms, and security cameras help to deter burglars and vandals. In addition, fire suppression systems, sprinklers, and other safety measures can help to prevent damage from fires and other disasters. Without thesesecurity measures, property owners would be at risk oflosing valuable assets and suffering financial losses.Thirdly, security engineering is important forprotecting information from unauthorized access. In today's digital age, cyber threats are a major concern for businesses, governments, and individuals. Hackers can steal sensitive data such as financial information, trade secrets, and personal information, causing significant harm to individuals and organizations. Security measures such as firewalls, encryption, and access control systems can helpto protect against these threats and ensure that sensitive information remains secure.In conclusion, security engineering plays a critical role in our lives, protecting us from harm, safeguarding our property, and ensuring the security of our information. As threats to security continue to evolve, it is essential that we continue to invest in security engineering to keep ourselves and our communities safe. By working together to design and implement effective security measures, we can create a safer and more secure world for everyone.。
The Safety Standards of Scaffolding1. PURPOSEThis procedure provides guidelines for the safe erection, inspection, use, and dismantling of scaffolding at Air Products Facilities worldwide.2. SCOPEThis procedure applies to all personnel who erect, inspect, use, or dismantle scaffolding. Air Products plant personnel must ensure that all contractors engaged in any scaffolding activities shall comply with the provisions in this procedure.3. SUMMARY3.1 Scaffold design and specification shall as a minimum follows the nationally recognized and approved standards of the country in which the scaffold is erected. Where the requirements of this standard are different to the nationally recognized and approved standards, t he most stringent standard will apply.3.2 Scaffolds shall be inspected by competent qualified and certified personnel prior to use, after inclement weather and any occurrence where the structure has been modified. Any individual that erects or disassembles a scaffold must be certified, and all users of scaffolding must receive the appropriate training. Contract personnel must present proof of the appropriate training and qualifications prior to working on any Air Products site.3.3 Scaffolds shall only be erected and disassembled by competent approved and qualified personnel. Proper provisions must be made for the safe lifting ofscaffold fittings, poles and boards. Lifting equipment must be designed to prevent the possibility of scaffold falling to grade in the event that the load snags or knots slip. Throwing and dropping equipment is strictly prohibited.3.4 Erected scaffolds exceeding 38m (125' feet) in height (or the national limits in the country of use) shall be designed by a registered professional engineer, or the local authority where applicable, and shall be constructed and loaded in accordance with such design.3.5 The person(s) in charge of the activity, e.g., plant maintenance, construction, etc., shall ensure that any individual that has the authority and responsibility for the erection, inspection, and disassembly of scaffolding is competent to do so. Theindividual will be deemed competent after receiving suitable training by an approved scaffold training company or in-house expert and shall be documented.3.6 Scaffolds shall have guardrails, mid-rails, and toe boards installed on all open sides and ends of platforms.3.6.1 Guardrails shall be installed no less than 970 mm (38" inches) or not more than 1,140 mm (45" inches) high with a mid-rail, or as required by the National Standard. There must not be a gap between guardrails, or between toe boards and guardrails, greater than 470 mm (18" inches).3.6.2 Toe boards shall be a minimum of 102 mm (4" inches) in height and must be secured to prevent movement. Toe boards are to be of wood construction, aluminum, or steel preformed to match the scaffold.3.6.3 In windy conditions and certain situations, netting must be placed between the toe board and mid-rails (and top rails in some cases) to prevent materials, i.e. paper, rags, small tools; various materials from being blown off the scaffold decking and falling onto the ground exposing people below to fall hazards.3.7 Scaffolds must be erected on sound surfaces and base plates must be used at all times. Footing or anchorage for scaffolds shall be rigid, and capable of carrying the maximum intended load without settling or displacement. Unstable objects such as barrels, boxes, loose brick or concrete blocks shall not be used to support scaffolds. 3.8 All poles, legs, or uprights of scaffolds shall be plumb and rigidly braced to prevent swaying and displacement. Sufficient ties or raking shores shall be provided to ensure that the scaffold cannot fall away from the object being scaffolded.3.9 Scaffold surfaces shall be kept clean and free from sharp edges, burrs, or other safety hazards.3.10 Scaffolds shall not be loaded in excess of the working load for which they are intended. Scaffolds and their components shall be capable of supporting at least four (4) times the maximum intended load. Scaffolds should have their safe working loads posted or visible to those working who will be performing work on the scaffold.3.11 Scaffold work platforms shall be fully planked with wood, aluminum, or steel scaffold planks or 51 mm X 254 mm (2" x 10" inches) lumber that meets Planking Requirements and is rated to support the intended load.3.12 Scaffolds shall be maintained in a safe condition, and shall only be altered by competent approved and qualified personnel. Scaffolds undergoing modification shall be withdrawn from use until the modification work has been completed, and the scaffold inspected and approved for use by a competent approved and qualified person.3.13 Scaffolds (including mobile access towers) shall not be moved while they are in use or occupied.3.14 Scaffolds damaged or part weakened from any cause shall immediately be replaced and shall not be used until repairs have been completed and the scaffoldre-inspected.3.15 The preferred method of access and egress to a work platform is from a ladder which shall be fitted with an access gate panel. Chain gates can only be used where access gate panels are not safely accessible. Access ladders should not exceed9m (30' feet) in length, and shall extend a min. of 1.1m (3.5' feet) past the working platform.3.16 Access ladder(s) shall be provided with each scaffold built. Access ladders must be of an approved construction, fixed on a suitable foundation, and unpainted. The ladders should be fixed at the top, bottom, and sufficient intermediate points to prevent undue sagging or movement. The recommended gradient is to be 1:4(i.e., about 1 unit out for every 4 units in height). A chain gate shall be used on ladder frames when access gate panels are not safely accessible.3.17 Access or working platforms shall be no more than 9m (30' feet) apart vertically. When a scaffold height exceeds 9 m (30' feet) all additional platforms shall be on the inside of the scaffolding. If the working platforms are spaced more than6.1m (20' feet)) apart, the ladders shall then be equipped either self- retracting lifelines or an OSHA or equivalent National approved cage. The lifeline shall be installed to an acceptable anchorage point capable to withstand 2300Kgs or (5000 Lbs) per individual attached for fall protection. Any ladder over7.3m (24' feet) or 9.1m (30' feet) must have an intermediate platform as a means for resting on the way up.3.18 Use of pulleys, hoist arms, or other devices to hoist material is prohibited, unless the scaffold is guyed or braced to a permanent structure to prevent tipping or has been designed to accommodate these lifting devices.3.19 Use of ladders or makeshift devices on top of scaffold to increase its heightor to provide access from above is prohibited.4. PROCEDURE4.1 Safety Considerations4.1.1 Depending on the nature and the area of work, appropriate personal protective equipment must be worn by personnel. A competent person must determine the feasibility and safety, or where National Standards may dictate, of providing fall protection during the erection and dismantling of scaffolding.Note: Fall protection must be worn by workers erecting and dismantling scaffolds when exposed to falls greater than 6 feet.4.1.2 Personnel working on a scaffold platform with full handrail, mid rail, toe boards and gated access are not required to tie off when working inside the platform area. Safety harness shall be used during scaffold erection. Tie off is required above 2m (6' feet).4.1.3 Personal protective equipment must be used which has been identified through the Workplace Risk Assessment/Job Safety Analysis.4.1.4 Scaffolds shall be built or dismantled in a manner to prevent passage from under the scaffold. Caution tape should be used to mark a safe zone around the scaffolds. Personnel access through mid rails and cross bracing is not recommended.4.1.5 If a scaffold erection interferes with the permanent access ladder or permanent fall protection device, alternative fall protection and ladder access must be provided.4.1.6 Special precautions shall be taken to protect scaffold structure including any wire or fiber ropes when using a heat producing process.4.1.7 Falling objects protection must be installed to provide protection from falling hand tools, debris, and other small objects. This can be accomplished by using toe boards, screens or brick guards; guard rails systems, nets, catch platforms, or canopy structure methods. These systems must be capable of containing or deflecting falling objects. Overhead protection shall be provided for individuals working on a scaffold exposed to overhead hazards.4.1.8 Individuals shall not work on scaffolds during a storm or high winds. Every effort should be made to exit the scaffold prior to electrical storms. Scaffolds should only be sheeted in where the scaffold structure (including ties and/or raking shores) has been specifically designed to accommodate the additional wind loads that thisimposes.4.1.9 Individuals shall not work on scaffolding, which is covered with ice or snow, unless all ice or snow is removed and planking is covered with antiskid material to prevent slipping. This is because the deadweight of ice and snow can lead to significant overloading of the scaffold structure.4.1.10 Tools, materials, and debris shall not be allowed to accumulate in quantities to cause a hazard.4.1.11 Partly erected/dismantled scaffold must have suitable warning signs posted in prominent locations, be barricaded off, or policed to prevent unauthorized entry. The use of Scaffold tags is strongly recommended.4.1.12 When scaffold material is stored on-site, it is advisable to store the material under dry conditions.4.1.13 Scaffolds are not to be placed closer than 9m (30' feet) to live power lines, or no closer than the minimum clearance specified by the National Electrical Safety guidelines in the country of jurisdiction. In some countries grounding of the scaffold structure is required.4.1.14 Scaffold accessories shall be used and installed in accordance with manufacturer's recommended procedures. Accessories shall not be altered in the field.4.1.15 Personnel who perform work on scaffolding systems must be trained according to the requirements outlined by Air Products or according to national or local regulations. Retraining is required in at least in the following situations:4.1.15.1 Where changes at the worksite present a hazard about which any employee has not been previously trained.4.1.15.2 Where changes in the types of scaffolds, fall protection, falling object protection, or other equipment present a hazard about which an employee has not been previously trained.4.1.15.3 Where inadequacies in an affected employee's work involving scaffolding indicates that the employee has not retained the requisite proficiency.4.1.15.4 Where changes to the procedure have taken place, which an employee has not been previously trained.Note: The Following Environmental Considerations:Metal scaffold platforms should be used during Lead Abatement Activitieswhenever possible, to eliminate contamination and cleanup of wood walk boards.4.2 Scaffold Inspection4.2.1 Scaffolding shall be inspected by a competent, qualified and certified scaffold inspector prior to use, after any modification, or after any occurrence which could affect the integrity of the scaffold structure. This shall either be the contractor responsible for the provision of the scaffold or an Air Products employee trained in the proper erection, inspection and use of scaffolding. The results and periodic frequency of such inspections shall be recorded and Scaffold Tags posted in a prominent location at each access point to show the inspection status of the scaffold and next inspection period.The periodic frequency shall depend on factors such as the type of scaffold, site and weather conditions, intensity of use, age of the equipment, and how often sections or components are added, removed or changed, but should never exceed 1 week (7 days). These kinds of factors will determine how quickly or how slowly safety related faults, loose connections, degradation and other defects could be expected to develop, and consequently indicate whether inspections should be conducted more frequently than every 7 days.4.2.1.1 For routine maintenance activities, all scaffolding shall be inspected daily or before each work shift.4.2.1.2 For Construction and Turnaround Activities, all scaffolding shall be inspected at least once before each work shift or more periodic as determined by the scaffold inspector.Note: "Periodic" means frequently enough so that, in light of these factors and the amount of time expected for detrimental effects to occur, there is a good likelihood that problems will be found before they pose a hazard to working individuals.4.3.2 Upon completion of a scaffold, the scaffold inspector shall inspect the scaffold. When a scaffold is approved by the inspector a green 'SCAFFOLD COMPLETED' - 'READY FOR USE' or a yellow 'No Access' tag will be inserted into the danger tag holder. If it is not approved, the inspector will attach a red tag into the danger tag holder indicating that the scaffold is not suitable for use. The red tag must remain in place until the scaffold is repaired and inspected by a competent person4.3.2.1 The Inspector will date and sign the "GREEN" tag when there are no defects in scaffold construction noting total working load on tag.4.3.2.2 The Inspector will date and sign the "YELLOW" caution tag and fill in any restrictions or cautions associated with the scaffold noting the total working loadon tag.4.3.2.3 The Inspector will date and sign a "RED" tag indicating that the scaffold is not to be used because it is being modified or is not suitable for people to be working on it.4.3.3 No unauthorized modifications will be made to any scaffold. Only approved scaffold builders are permitted to modify a scaffold.4.3.4 Scaffolding that is required to support a load must visibly display the maximum load permitted and all persons using the scaffold must be informed of the restrictions of use for the particular arrangement (load capacity, general access, inspection only, etc.). The sign should be legible and written in the native language to ensure full understanding. In some cases, dual language signs may be necessary.4.3.5 Scaffolds shall be rated for total working load at time of inspection. To determine total working load, multiply length times width to find the square feet of the working area. Multiply working area by allowable load per square foot.Example: 1.5m (5' feet) wide by 2.1m (7 feet) long, 1.5m X 2.1m = 3.15 square meters (5'x7' = 35 square feet). Multiply this number 3.15 (35) times the working load per square meters (square foot) from the load chart found in OSHA's 1926 Subpart "L " or equivalent to find the total working load.Note: The Lumber basis for this is "Douglas Fir".Example: Full thickness undressed lumberWorking load 22.7 Kg-per square meter (50 lb-per square foot)Permissible span 2.4m (8' feet).3.15 meter squared X 22.7 Kg per squared meter = 71.5 Kg -Total working load (35 square feet x 50 p.s.f. = 1,750 pounds Total working load).Example: Nominal thickness lumber (dressed)Working load 11.1Kgs per square meter (25Lbs per square foot)3.15 meters squared X 11.1 kgs per squared meter = 35 Kgs -Total working load (35 square feet x 25 p.s.f. = 875 pounds - Total Working Load)NOTE: FOR PERMISSIBLE SPAN - USE THE NEXT HIGHER NUMBER FORLENGTH OF SPAN.4.3.6 The minimum permitted widths for scaffold are as follows (unless specified by national regulations):GeneralFor men and materialsFor supporting another platformFor the side of a sloping roof4.3.7 Scaffold boards are to be supported as follows (unless national regulations are more stringent):Thickness of boardMaximum Spacing51 mm (2 in) 2590 mm (8 ft)4.3.8 Scaffold planking shall be scaffold grade as recognized by grading rules for the species of wood and stamped on the plank.4.3.9 When a scaffold is built around a line or object, the following guidelines are to be followed:4.3.9.1 Toe-board shall be installed around the object.4.3.9.2 Planking shall be covered with plywood 15.87 mm (5/8" inches) or greater and capable of supporting the intended load.4.3.9.3 Scaffolds shall be planked end-to-end on each side of the object. The planking needs to be supported around the object to ensure the decking or planking will sufficiently hold the intended weight of people and tools and materials.4.3.10 All brackets shall be seated correctly with side brackets parallel to frames and end brackets 90° to the frame. Brackets shall not be bent or twisted from normal positions.4.3.11 Scaffolds shall be visually checked by the user prior to use to ensure that no unauthorized changes have been made and that the status tag is still valid. If the tag is not valid, the scaffold shall be removed from service by removing the scaffold tag until repairs are made and the scaffold has been re-inspected. A red tag should be fixed to the scaffolding indicating no one is to use it.4.3.12 Where gin wheels/pulleys (including ropes) or other accessories are fitted to the scaffold, these are to be included into the scope of all inspections mentioned in this procedure.4.3.13 When it is proposed to use a lightweight mobile scaffold platforms for light duty work, the scaffold shall be subject to the following:4.3.13.1 The scaffold is used with all bracing and outriggers in position and wheels locked.4.3.13.2 All scaffold is used on level firm ground only.4.3.13.3 All points of the scaffold are fully supported by the ground.4.3.13.4 The individuals erecting the scaffold have been properly trained in its use.4.3.13.5 The height of the scaffold shall not exceed the smallest base dimension by a factor greater than 3:1, subject to the manufacturer confirming that the scaffold is suitable for this and that the manufacturer instruction and information are available. If no information exists, assume 2:1 as the maximum ratio. Additionally, the smallest base dimension shall not be less than 1200 mm (4' feet).4.3.13.6 Ladders must not be used to extend the height of the scaffold.脚手架安全标准1.目的本程序为全球AOCI工厂安全安装、检查、使用和拆卸脚手架提供了指导原则。
Unit 1 safety man ageme nt system Accide nt causatio n models 事故致因理论Safety man ageme nt 安全管理Physical conditions 物质条件Machi ne guard机械保护装置ingHouse-keep ing 工作场所管理Top man ageme高层管理人员ntHuma n errors 人因失误Accide nt-pro nen ess models 事故倾向模型Mun iti ons factory 军工厂Causal factors 起因Risk ing tak ing 冒险行为Corporate culture 企业文化Loss preve nti on 损失预防Process industry 制造工业Hazard con trol 危险控制Inten sive study 广泛研究Organi zati onal performa nee 企业绩效Mutual trust 相互信任Safety officer 安全官员Shop-floor 生产区Seni ority资历、工龄Local culture 当地文化Abse nteeism rate 缺勤率Power relatio ns 权力关系Status review 状态审查Lower-level man ageme nt 低层管理者Busin ess performa nee 组织绩效Most senior executive 高级主管Supervisory level 监督层Safety prin eiple 安全规则Wall-board 公告栏Impleme nt pla n 执行计戈UHazard ide ntificati on 危险辨识Safety performa nee 安全性能译文：Schein给出了组织文化的广泛定义，他认为组织文化是由若干基本假设组成的一种模式，这些假设是由某个特定团体在处理外部适应问题与内部整合问题的过程中发明、发现或完善的。
附录AAnalysis of Safety Performance in the Construction IndustryData source:The HKU Scholars HubOver the years,many researchers have investigated into the safety performance of the construction industry.Some of them identified factors leading to the occurrence of accidents on construction sites.The high frequency of construction accident has casted the industry a considerable amount.The government and many concerned parties have taken measures against the potential causes of accidents,aiming at reducing accidents and promoting safety in the industry.1.Definition of AccidentLaney(1982)states that the simplest definition of an accident is“an uncontrollable occurrence which results in injury or damage”.The events leading up to an accident are controllable in most cases.International Labor Office Geneva(1983)and Kennedy(1997) also agree that accidents don’t just happen,they are preventable.All industrial accidents are, either directly or indirectly,attributable to human failings.Rowlandson(1997)points out that a number of elements which need to be incorporated into the definition if this is to be useful in terms of accident prevention.These elements are:ck of management control;b.basic personal and task factors;c.sub-standard acts and conditions–the symptoms of the accident;d.an unplanned and undesired event or incident–the accident;e.an undesired outcome–death,injury or property damage;f.a cost.He thus defines accident as:“...an unplanned incident leading to death,injury or property damage which stems from inadequate management control of work processes manifesting itself in personal or job factors which lead to substandard actions or conditions which are seen as the immediate causes of the accident.”mon Accidents in Construction IndustryAccording to Lingard and Rowlinson(1994)accident proneness can be measured by thefrequency of accident occurrence.According to some researches,construction industry has the highest accident rate over the years,thus it is said to be more accident-prone than other industries.It is essential to understand why construction industry is more vulnerable to accident than the others.The Labour Department classified construction accidents by types. Table1shows the number of injuries in2004and figures in blankets are the number of fatality fixed or stationary object11.9%Fall of person from height11.7%Injured whilst lifting or carrying16.0%Slip,trip or fall on same level17.3%Striking against or stuck by moving object19.7%Contact with moving machinery or object being machined7.0%Others16.4%The above chart shows the major accidents which contributed more than5%of the construction accidents in2004:3.Facors Affecting Safety Performance of Construction IndustryMany researchers have studied the factors affecting safety performance on construction sites.Stranks(1994)points out that the reasons of the poor safety recordmay correlate with many factors such as complexity of the work or system,risk nature of works,management style,safety knowledge and commitment,and personal behavior.Here are several factors that affect safety performance of contraction industry.pany SizeTam and Fung(1998)study the effectiveness of safety management strategies on safety performance.In this study,the safety performance of companies is gauged by their accident rates in1994as accident rates are steadier throughout the year and they can be easily obtained.In the study,it is found that company size,in term of number of management staff, affects safety performance.Tam and Fung(1998)observe that the accident rate of small companies is highest,the rate for medium sized lies almost at the industrial average and that for the large firms is the lowest.This demonstrates that larger firms generally have better safety records.This could be resulted from the more structured and formalized safetyprogrammers,and stronger management commitment to safety.It is found that the higher number of employees in the organization,the lower figure of the accident rate.b.Level of SubcontractingMulti-layer subcontracting is unique to China construction industry and has been the most common practice being used with long history.Subcontractors would normally further subcontract their work without the consent of their principal contractor to several smaller firms in order to minimize their overheads.Multi-layers of subcontractors is one of the major difficulties in implementing safety management.Recent study carried out by Wong and So (2004)shows the current status of the subcontracting practice and how multi-layer subcontracting system affects construction safety performance.Their questionnaire survey reveals that the majority of respondents(45.5%)would sublet80-90%of their works to subcontractors.None of the respondents would carry out construction work that fully relies on their own effort;at least30%of works would be subcontracted out.Lai(1987)attributes the high site accident rates to the use of labour-only subcontractors. As subcontracted workers are highly mobile,lack loyalty to contractors and are rewarded according to work done,they are difficult to control.Implementing safety practices on site becomes more difficult.Recent researchers,like Wong(1999)and Lee(1996),believe multi-layer subcontracting system is one of the major causes to poor safety performance in China’s construction industry.The most extreme case of subcontracting quoted by Lee(1999) was subcontracting up to15layers.He describes such multi-layer subcontracting as common and excessive.Small business,like subcontractors,face with specific health and safety challenges. Many firms lacked adequate resources and were often struggling to survive.Moreover,they lack an understanding of their obligations and the health and safety issues of their processes. These can be supported by Rawlinson’s(1999)study for Housing Authority.He finds that average84%of workers injured from1995to1998were subcontractors’workers.Such situation may be due to subcontractors’workers’inadequate training and awareness of safe working practice.Tam and Fung(1998)find there is a significant difference between trained and un-trained employees in relation to accident rate.municationAccording to Wong(2002),communication is a major factor affecting the safety on sites. However,it has seldom been discussed before.Wong(2002)conducts a research to find out the causes of communication problems between main contractors and subcontractors.He identifies12factors leading to poor communication in construction industry.Among them,10 are discussed here as they are more relevant to the territory and have been discussed by other researchers.These factors are listed below:i.Industry NatureIn order to complete the project on time,construction projects are carried out under almost all sorts of weather conditions.Besides,construction workers are usually not well-educated.These cause communication difficulties.ii.Industry CultureWong(2000)identifies sub-contracting system is a hurdle to construction safety as they are engaged on day-work basis,thus they are not aware to site safety.iii.Client TypeThere are2types of clients,public and private ernment bodies are public clients.Private clients can be further divided into experienced and inexperienced.Their concern and expectation on site safety performance appear to be different.anization StructureFryer(1997)suggests that organization structure,including hierarchy,downsizing and decentralization vs.decentralization,rigidity vs.flexibility,rules and procedure,would affect the result of communications.According to Wong(2002),downsizing became popular since 1990s because this can allow flexibility for people for respond more quickly to change.v.Relationship of Main and Sub-ContractorsThe poor relationship between contractors is an obstacle to construction safety.However, such situation could be resolved by partnering.Wong(2002)says that partnering is considered by most of the project participants as a worthwhile initiative.munication BarriersHicks and Gullett(1983)points out that communication overload and inattention to message can cause ineffective communication.People may receive more information than they can process or they spend time evaluating the sender and the message before the entiremessage is being passed or read.vii.Content of InformationWong(2002)attributes poor safety performance to the content of information.If content of information,such as method statements,working,drawings or safety procedures,are inaccurate or unclear,safety could not be effectively achieved.viii.Value of CommunicatorsTam et al(2001)point out that many production personnel rank safety in a lower priorities when compare with meeting the production schedule,quota and cost targets. Besides,Nichols and Stevens(1999)mention the failure of many superiors to listen.As a result,safety issue does not receive enough attention.ix.Provision of Continuous TrainingEnrichment of safety knowledge is essential.Teo et al(2005)carry out a study to find out the methods in fostering workers’safe work behaviours.They find that training is an important way to enable workers to work safely,because they are equipped with the knowledge of how to work safely.x.Workers’AttitudeWorkers’incorrect attitude towards site safety is a big difficulty in making safety sites. In Chan et al’s(1999)research,it is found that workers do not think they have the duty to comply with safety regulations for the main contractors.They will be more aware to safety issues after serious accident but they will resume their own way of practice shortly after that. Hinze(2002)and Vredenburgh(2002)state that site safety could only be improved if workers change their behaviours towards site safety.Teo et al(2005)also agree that negligence in safety and lack of awarenessto ensure lingering dangers on site would increase the chances of workers getting injured.5.Accident Costs and Safety CostsThe construction industry in China,especially for building projects,has a very poor safety record.According to Hinze and Raboud(1988),it is a common perception that “safety”is unproductive and not vital to the success of a project as contractors may not be appreciated by just keeping good safety on sites.However,it should be noted that accidents do not just lead to injury and loss of lives,a huge amount of accident costs is induced as well.Accordingly,safety investment in construction projects could better the safety performance and avoid the huge amount of accident costs.Ridiculously,most contractors are not willing to invest their money,time and effort to operate and to maintain effective safety programmers. They are not fully aware of the costs of an accident.Over the years,there have been many studies of the cost of accidents and it is found that, accident costs could be huge.Rowlinson(1997)identifies that cost of an accident is not only constituted of hospitalization and compensation costs of the individual involved in the accident.De Saram and Tang(2005)admit that construction accidents may result in numerous damages and losses.By understanding all the costs incurred by construction accidents,contractors might be surprised,and thus realize the importance of site safety investment.6.Safety Management SystemSafety management systems are not new to us.Many have been written on it.Site safet is regarded as an integral part of the project objective and safety attitudes a part of the project culture in order to pursue site safety effectively.Management at head office and on-site must be seen to care.Only then,an effective and committed safety officer will be appointed and given sufficient call on time and resources to achieve site safety.According to the Labour Department,below are the objectives of setting up a safety management system:a.to prevent improper behaviour that may lead to accidents;b.to ensure that problems are detected and reported;andc.to ensure that accidents are reported and handled properly.Besides,a safety management system enables flexibility of developing safety policies and measures most suitable to the particular circumstances of individual companies.The inputs from employer and employees make the safety management processes more readily be modified to keep pace with changing circumstances.An effective safety management system can be used to manage and control both existing and potential hazards and its effectiveness can be maximized when an organization is able to combine occupational safety and health issues into its business strategy.In this paper,statistics of construction safety,common accident types,factors affectingsafety performance and legislations related to construction safety have been reviewed. Statistics shows the unacceptable construction safety performance in the past.Therefore,the government introduced safety management system to the industry,hoping to establish a self-regulating atmosphere.Besides,government keeps introducing new legislation,for example the Construction Workers Registration Ordinance,and amending existing legislations to cope with the industry. Though the accident rate becomes stagnant in recent years,the fact shows the government’s determination in improving the industry to an accident-free one.附录B关于建筑行业安全施工的分析资料来源：香港大学学者中心多年来，许多研究人员都对建筑业的安全施工做出过深入研究。
Breath of fresh airWith no aspect of underground mine safety more fundamental than proper ventilation, various modern systems are being used to ensure airflow is safe for workersBY BREE FREEMANWhen it comes to underground mine workings, few things are more important than adequate ventilation. Every year enormous efforts are made to maintain and improve airflow to working areas. This is to dilute emissions below statutory limits, render the air harmless, carry away hazardous contaminants and provide necessary levels of oxygen for the miners. As a result, ventilation systems form a crucial pan of the design of any mine, the layout of which is determined by the orebody geology, legislation, available manpower, mining methods and the equipment used.Specific environmental issues such as virgin rock temperatures, spontaneous combustion and dust control further complicate theoretical ventilation systems. Moreover, whatever system is eventually planned will inevitably suffer from imperfect implementation and control because of the day-to-day complexities of the extraction operation.“V entilation in the modem mine is an essential prerequisite, perhaps even more so than in the past.Apart from the obvious biological aspect of preventing depletion of oxygen and the build-up of carbon dioxide in the air, the mine-ventilation system must be able to keep quantities of contaminants below harmful levels,”says Mike Beare, principal mining engineer for consultancy SRK.He explains: “A modern mine has many sources of harmful substances, including fumes from explosives, dust from broken rock and gases present in the rocks themselves. in addition to these, the modem approach to mining (including the use of diesel-engine trucks and loaders) results in large quantities of CO, nitrous fumes and diesel-particulate matter entering the mine airflow. While scrubbers are fitted, they do not remove all the contaminants and the ventilation system has to be designed to be able to dilute these to safe levels.”These issues demonstrate the need for expert design, observes SRK, which also signals the need for ventilation costs to be minimised in the same way as any other cost aspect As a result, various production scenarios need to be addressed at the outset.Central to all of these calculations is the simple fact that airflow is determined by temperature and pressure differences, air flows from high-pressure to low-pressure areas . In a mine, It is caused by pressure differences between the intake and exhaust openings. Airflow follows a square-law relationship between volume and pressure - in order to double the volume of air, four times the pressure must be exerted.CREATING THE PRESSUREThere are two main types of fan:●Axial: these are generally high-volume, low-pressure fans, either directlydriven by the motor shaft (with the motor inside the tube body) or remotely driven using belts (with the motor outside the tube body). These are generally adjustable for volume by setting the pitch of the adjustable blades on the rotor and, in some cases, motor speed can be tailored to adjust volume and pressure.●Centrifugal: these are generally high-pressure, low-volume fans that consist ofa multi-bladed, squirrel-cage wheel in which the leading edge of the fanblades curves toward the direction of rotation. These fans have low space requirements, low tip speeds and are relatively quiet.AUXILIARY VENTILATIONThe ventilation of dead-end workplaces is the most frequent and Important application of auxiliary ventilation. It is used for both development and exploration work, as well as for production headings with only one entrance. A major inconvenience with any method of auxiliary ventilation during development is the necessity of frequent extension. The auxiliary airstream must be delivered as dose to the face as possible so that it can sweep away any impurities that have been generated.The two main methods of ventilating the faces of dead-end workplaces are erecting line-brattice (air entering on one side of the brattice and returning In the other side) and the installation of a fan, coupled with ventilation tubing.The practice of redirecting the main ventilation system with smaller, local fans is used where a line brattice is not adequate. Tubing, often suspended from timbers or roof bolts (if approved), carries the air to, or away from, the working face (tubing is rigid for exhaust systems and collapsible for forcing systems). This auxiliary ventilation system allows continuous miners to operate without being obstructed by brattice constructions.In addition, booster fans can be located in long airways to boost the airflow volume. These fans can be free-standing and used without using bulkheads.CIRCULATION CONTROLSMine-ventilation systems present a unique challenge in that the workfaces are normally moving away from the source of fresh air.This requires continuous changes to the ventilation system. These controls are needed to distribute the air underground, so that each working section Is ventilated with an adequate supply of fresh air.The various devices work collectively to direct the movement of the air through the main Intakes to the working section and move out through the returns without short-circuiting, which occurs when air from the intake goes directly into the return.ELIMINATING DIESEL EMISSIONSAs Mr Bear commented above, reducing harmful diesel emissions is another vital aspect of improving underground working conditions. But, while diesel-engine manufacturers and machine OEMs should be acknowledged for their combined achievements. In reducing pollutants, there would always be a percentage of emissions that must be strictly monitored, diluted and vented to the surface. What isneeded is an alternative to diesel, and some people believe fuel cells could be the key.A 2003 study by the University of Nevada used data obtained from a survey sent to 173 US metal and non-metal underground mines. From a 61% return, the survey included 4,786 diesel units (totalling 478,200kW), collectively consuming about 68MI/y of diesel fuel.As of January 20, the Mine Safety and Health Administration (MSHA) enacted a regulation limiting total DPM (diesel particulate matter) emissions from diesel engines to an Interim 450Ngm of total carbon/cm' of ambient air, and suggested it would be reduced further to 160pgm in January 2008.Extensive use of diesel-powered mobile equipment has resulted in the development of mining methods such as drift and fill stoping, which, in most circumstances, require …dead-end‟auxiliary ventilation rather than 'through-flow' ventilation. Since it can be harder and more expensive to ventilate these stopes, and meet the DPM regulations, most mines will have to modify their operating practices.Mines can exploit increased ventilation to help meet the DPM criteria, but this involves considerable costs since fan power Is proportional to cubic-air quantity, and purchasing and installing fans is very expensive.So, perhaps the use of total emission-free machines in our coal mines Is closer than we think.在矿业安全的方面没有比合适的通风更重要，为了矿工的安全各种各样的先进系统被用于保证风流的通畅。
