深基坑工程施工安全技术交底 1．进入施工现场必须遵守安全操作规程和安全生产十大纪律。2．严格执行施工组织设计和安全技术措施，不准擅自修改。3．基坑开挖前，应先检查了解地质、水文、道路、附近建筑物、民房等状况，做好记录，开挖过程经常观测变化情况，发现异 常，立即采取应急措施。 4．作业前要全面检查开挖的机械设备、电器设备是否符合安全要求，严禁带“病”运行，基坑现场排水、降水、集水措施是否 落实。 5．作业中应坚持由上而下分层开挖，先放坡先支护后开挖地原则，不准碰损边坡或碰撞支撑系统或护壁桩，防止坍塌，未支护前 不准超挖。 6．基坑周边严禁超荷载堆土、堆放材料设备，不得塔设临时工棚设施。 7．基坑抽水用潜水泵和电源电线应绝缘良好，接线准确，符合三相五线制和“一机一闸，一漏一箱”要求，抽水时坑内作业人 员应返回地面，不得有人在坑内边抽水边作业，移动泵机必须 先拉闸切断电源。 8．汽车运土、装截机铲土时，应有人指挥，遵守现场交通道标志和指令，严禁在基坑周边行走运载车辆。 9．基坑开挖过程，应按设计要求，及时配合做好锚杆拉固工作。10．基坑开挖到设计标高后，坑底应及时满封闭，及时进行基础施
工，防止基坑暴露时间过长。 11．开挖过程，如需石方爆破，应制定包括药量计算的专项安全作业方案，报公安部门审批后才准施爆，并严格按有关爆破器材 规定运输、领用、存放和管理（包括遵守爆破作业安全规程）。 12．夜间作业应配有足够照明，基坑内应采用36伏以下安全电压。 13．深基坑内应有通风、防尘、防毒和防火措施。 14．作业人员必须沿专用斜道上下基坑。 15．补充交底内容： 交底人签字： 日期： 接受人（全员）签字：
关于运动的英语演讲稿 篇一：英语演讲运动sports 英语演讲运动sports All over the world people enjoy sports. Sports help to keep people healthy and happy, and to live longer. Sports change with the seasons. People play different games in winter and summer. Swimming is fun in warm weather, but skating is good in winter. Some sports are so interesting that people everywhere go in for them. Football, for example, has spread around the world. Swimming is popular in all countries near the sea or in those with many rivers. Some sports or games go back thousands of years, like running or jumping. Chinese wushu, for example, has a very long history. But basketball and volleyball are rather new. People are inventing new sports or games all the time. Water skiing is one of the newest in the family of sports. People from different countries may not be able to understand each other, but after a game together they often become good friends. Sports help to train a
How to manage time Time treats everyone fairly that we all have 24 hours per day. Some of us are capable to make good use of time while some find it hard to do so. Knowing how to manage them is essential in our life. Take myself as an example. When I was still a senior high student, I was fully occupied with my studies. Therefore, I hardly had spare time to have fun or develop my hobbies. But things were changed after I entered university. I got more free time than ever before. But ironically, I found it difficult to adjust this kind of brand-new school life and there was no such thing called time management on my mind. It was not until the second year that I realized I had wasted my whole year doing nothing. I could have taken up a Spanish course. I could have read ten books about the stories of successful people. I could have applied for a part-time job to earn some working experiences. B ut I didn’t spend my time on any of them. I felt guilty whenever I looked back to the moments that I just sat around doing nothing. It’s said that better late than never. At least I had the consciousness that I should stop wasting my time. Making up my mind is the first step for me to learn to manage my time. Next, I wrote a timetable, setting some targets that I had to finish each day. For instance, on Monday, I must read two pieces of news and review all the lessons that I have learnt on that day. By the way, the daily plan that I made was flexible. If there’s something unexpected that I had to finish first, I would reduce the time for resting or delay my target to the next day. Also, I would try to achieve those targets ahead of time that I planed so that I could reserve some more time to relax or do something out of my plan. At the beginning, it’s kind of difficult to s tick to the plan. But as time went by, having a plan for time in advance became a part of my life. At the same time, I gradually became a well-organized person. Now I’ve grasped the time management skill and I’m able to use my time efficiently.
一、选择题 1．My parents showed some old pictures that brought back sweet memories. A．I B．me C．my D．mine 2．—Did you buy a large house? —No, not really, at least not as large as ______. A．yours B．your C．you 3．—Which one do you like better, English-Chinese dictionary or Words app? — I like________ of them. They are useful for English learners. A．none B．neither C．all D．both 4．—Hurry up! The bus is coming. —Wait a moment, please! Let me check if there’s ________ left. A．anything else B．important something C．other things 5．—Hi, Jack. Is this your dictionary? —No. is over there. It’s a present from my uncle. A．Mine B．Yours C．My D．Your 6．The government is making an effort to improve the life of elderly people, many of whom are suffering（遭受） from either loneiness or poor health, or even___________. A．neither B．none C．all D．both 7．Helen has got two brothers. _____ of them likes chocolate, but she loves it. A．Neither B．None C．Each D．Any 8．I don’ t like the color of this shirt. Could you please give me one? A．the other B．others C．another D．other 9．Be careful and try to make mistakes next time. You will get a better grade. A．few B．fewer C．little D．less 10．----Where would you like to go tomorrow, Beijing or Xi'an? ---- is OK. It’s up to you. A．Either B．Neither C．Both D．All 11．I left a message to my parents yesterday, but ______ of them called me back. A．both B．none C．neither 12．--- Which sweater do you prefer, the red one or the blue one? -- _______. I think I like the green one best. A．Neither B．Both C．Either D．All 13．---When shall we meet again next week? ---_____ day is possible. It’s no problem with me. A．Either B．Neither C．All D．Any 14．My mother is a teacher. She loves students very much. A．her B．his C．my D．your 15．Dear boys and girls, you will face the most important examination in less than 100 days.
关于科技的英语演讲稿—Technologyand thepresenceofstudents,ladiesandteachers,everyone!iw aspreparedintervalsofcloudtoday,inhonorhereentitled“te chnologyandfuture”speech,iamveryproudofboth,butsomeune ase.inrecentyears,wehaveseenourgreatmotherland,thecause oftherapiddevelopmentoftechnology,whichallowmetoachines eifeelveryproud.rememberthatlongago,cellphoneusealmostt heonlyone,whichiscalled,butafewyearsago,cellphoneshasun dergonegreatchanges,notonlylookmorebeautiful,butalsouse more,youcanusethephonestotakepictures,meetings,internet ,textmessages,etc.aseriesofthingsthatitheirlifemoreconv enient,soiammoreawareofthestrengthofthetechnology,butia mjustafledglingsstudents,“technology”asthewordalsoawa reofthelimited,iamunabletousesomeverydifficulttheorytoe laboratetechnologyxuanji,norighttoworkontheireldersican promiseofthetechnologyblueprint.butiamwillingtouseastud ent’sperspectivetotheimaginetechnologyandthefuture.fromgene ticengineering“isaliveprinces”dream,nano-technology“
英语演讲稿：我喜欢运动 my favourite sport good afternoon, ladies and gentlemen. it’s my great pleasure to be here sharing my speech with you. today my topic is my favourite sport. look at my healthy skin , oh! can you guess which sport i like best? yes,it's swimming !that's why i look so handsome. when i was only 5 years old, i began to learn how to swim and i like it. i think swimming is an interesting sport and it's exciting. it's also a good way to keep fit . every summer, i go to swimming school . my parents say i’ll have a good health if i insist swimming in a right way. and i can grow taller if i go to swim often. so i always ask my coach some questions on swimming and he always helps me a lot. i can swim so well and i can swim breaststroke, backstroke and freestyle. if you also like swimming, join me! thank you! 我最喜欢的运动
一、选择题 1．—I can’t believe Jim got first in the competition. — As you know, God helps those who help ______. A．yourself B．himself C．yourselves D．themselves 2．I tried two stores for the present I wanted，but ______ of them had it． A．none B．either C．neither D．both 3．—What do you know about bamboo? —Maybe bamboo has more uses than ________ in the world. A．any plant B．all the plants C．any other plant 4．—Hi, Jack. Is this your dictionary? —No. is over there. It’s a present from my uncle. A．Mine B．Yours C．My D．Your 5．-Whose CD is it? -Miss Lee always listens to music. It must be________. A．he B．she C．her D．hers 6．My head teacher knows me better than _______. A．himself B．herself C．yourself D．myself 7．Be careful and try to make mistakes next time. You will get a better grade. A．few B．fewer C．little D．less 8．I left a message to my parents yesterday, but ______ of them called me back. A．both B．none C．neither 9．Not ______that is faced can be changed, but nothing can be changed until it is faced. A．everything B．anything C．something D．nothing 10．My parents showed some old pictures that brought back sweet memories. A．I B．me C．my D．mine 11．--- Whose book is this, Jack? -- Oh, it’s ______. I am looking for it everywhere. A．me B．my C．mine D．I’m 12．I ate ______ at lunch because the food was terrible. A．anything B．nothing C．something D．everything 13．Don' t you think _ _ necessary for friends to trust each other? A．one B．that C．those D．it 14．Life is full of ups and downs, and without the downs, the ups will mean A．something B．everything C．anything D．nothing 15．Some people are interested in _______women’s sense of smell is better developed than _____of men. A．which; that B．what; one C．which; one D．whether; that 16．The charity show lasted nearly three hours, but ______ left the hall early.
深基坑工程施工技术探析 摘要：随着城市建设的发展,基坑施工越来越多, 深基坑工程施工主要包括基坑支 护体系施工和土方开挖，是一项综合性很强的系统工程。本文结合工程实际，对 深基坑工程施工进行了分析，以供参考。 关键词：基坑支护深基坑施工 一、工程概况 该大厦为框架结构，地上26层，地下2层，总高度112m，总建筑面积约 7.3万多m2，地下室约2.7万m2，基础采用PHC—AB500 （125）型锤击管桩。 基坑开挖面积约1.7万m2，基坑周长约528m，基坑开挖深度约10 m。基坑北面 为市政道路，西南面为大量水塘。场地范围内地层自上而下有第四系人工填土层，粉质粘土硬塑、坚硬，并有较厚铁质层。场地浅层地下水多属潜水—微承压水类型，其补给来源于大气降水及地下水侧向径流。 二、深基坑施工技术应用 该工程为高层建筑物，基础设计等级为乙级，结构安全等级为二级。由于基 坑面积较大，基坑深度较深，结合周边环境，最终确定施工方案如下：先实行钻 孔灌注桩排桩加预应力锚索支护施工，基坑支护完成后开挖第一层土方至-2.65米，进行喷射混凝土及冠梁施工，并进行第一排锚索施工及张拉，随后开挖第二层土 方至-6.65米，进行腰梁施工，并进行第二排锚索施工及张拉，同时完成管桩基础施工，桩基检测完成后继续进行下部土方开挖至地下室底板垫层底标高-10.45 m～-14.05 m范围，同时进行截桩处理，完成深基坑施工，进入下一步承台和地 下室施工。该施工方案体现了技术可行、安全稳固、施工便捷和经济合理等特点。（一）基坑支护施工技术应用 深基坑支护结构所承担的土方压力大小直接关系施工安全，由于地质情况的 多变性及周边环境的复杂性，基坑支护方案的选择显得非常重要。根据岩土情况 和工程概况，设计单位将该工程基坑各侧支护设计安全等级定为二级，采用钻孔 灌注桩排桩加预应力锚索支护形式，桩顶混凝土冠梁，钻孔灌注桩外为双排搅拌 桩止水，钻孔桩间采用单管旋喷桩填满，冠梁顶以上1∶1放坡面喷射混凝土， 围护桩及旋喷桩均进入第六层土层（粉质粘土层），基坑底部处于第四层及第六 层的中砂及粉质粘土层上。这种方案的选择起到了很好的防渗和支护作用，有效 地保障了地下结构施工任务。 1.钻孔灌注桩施工。 基坑周长约528 m，钻孔灌注桩桩径1000 mm，桩长15.1 m，桩间距约1.6 m，桩内配通长钢筋笼。施工中采用跳打方法，8台桩机分段施工，按照“测量定位→ 硬地坪及泥浆池准备→护筒埋设→桩位复核→钻架就位校核→钻孔→第一次清孔（泥浆循环→泥浆处理→泥浆外运）→测孔深沉淤→下放钢筋笼（钢筋笼分批验收）→下放导管→第二次清孔（泥浆循环→泥浆处理→泥浆外运）→测定沉淤→ 安放隔水球→灌注水下商品混凝土（泥浆循环→泥浆处理→泥浆外运）→钻架移位”流程施工，现场管理对成孔、清孔钢筋笼及水下混凝土等环节施工质量均有严格要求。 2.水泥搅拌桩施工。 在钻孔灌注桩外侧设置两排深层水泥搅拌桩用于止水，桩径550 mm，桩间距、排间距均为400 mm，桩间搭接距离为150 mm，桩长15.6 m。水泥搅拌桩施工流 向按钻孔灌注桩的施工顺序提前进行，采用4台桩机分两组向不同方向施工，每
1.How to build a business that lasts100years 0:11Imagine that you are a product designer.And you've designed a product,a new type of product,called the human immune system.You're pitching this product to a skeptical,strictly no-nonsense manager.Let's call him Bob.I think we all know at least one Bob,right?How would that go? 0:34Bob,I've got this incredible idea for a completely new type of personal health product.It's called the human immune system.I can see from your face that you're having some problems with this.Don't worry.I know it's very complicated.I don't want to take you through the gory details,I just want to tell you about some of the amazing features of this product.First of all,it cleverly uses redundancy by having millions of copies of each component--leukocytes,white blood cells--before they're actually needed,to create a massive buffer against the unexpected.And it cleverly leverages diversity by having not just leukocytes but B cells,T cells,natural killer cells,antibodies.The components don't really matter.The point is that together,this diversity of different approaches can cope with more or less anything that evolution has been able to throw up.And the design is completely modular.You have the surface barrier of the human skin,you have the very rapidly reacting innate immune system and then you have the highly targeted adaptive immune system.The point is,that if one system fails,another can take over,creating a virtually foolproof system. 1:54I can see I'm losing you,Bob,but stay with me,because here is the really killer feature.The product is completely adaptive.It's able to actually develop targeted antibodies to threats that it's never even met before.It actually also does this with incredible prudence,detecting and reacting to every tiny threat,and furthermore, remembering every previous threat,in case they are ever encountered again.What I'm pitching you today is actually not a stand-alone product.The product is embedded in the larger system of the human body,and it works in complete harmony with that system,to create this unprecedented level of biological protection.So Bob,just tell me honestly,what do you think of my product? 2:47And Bob may say something like,I sincerely appreciate the effort and passion that have gone into your presentation,blah blah blah-- 2:56(Laughter) 2:58But honestly,it's total nonsense.You seem to be saying that the key selling points of your product are that it is inefficient and complex.Didn't they teach you 80-20?And furthermore,you're saying that this product is siloed.It overreacts, makes things up as it goes along and is actually designed for somebody else's benefit. I'm sorry to break it to you,but I don't think this one is a winner.
一、选择题 1．A smile costs , but gives much, so always keep smiling! A．something B．anything C．nothing D．everything 2．—Sonia, is this your dictionary? —Oh, no, it’s not ______. Ask Li Lei. He is looking for ______. A．me; hers B．mine; him C．my; her D．mine; his 3．I tried two stores for the present I wanted，but ______ of them had it． A．none B．either C．neither D．both 4．As volunteers, they should do ______to help the children in trouble. A．nothing B．anybody C．something D．somebody 5．—Which one do you like better, English-Chinese dictionary or Words app? — I like________ of them. They are useful for English learners. A．none B．neither C．all D．both 6．—What do you know about bamboo? —Maybe bamboo has more uses than ________ in the world. A．any plant B．all the plants C．any other plant 7．Success comes from hard work. Lazy people can achieve . A．everything B．something C．nothing D．anything 8．A new study shows that shouting at children may have the results that go beyond of beating(打)them. A．that B．those C．it D．ones 9．-Whose CD is it? -Miss Lee always listens to music. It must be________. A．he B．she C．her D．hers 10．Mr. Wang recommended me a few foreign movies, but ____was to my taste. A．all B．neither C．nothing D．none 11．My head teacher knows me better than _______. A．himself B．herself C．yourself D．myself 12．I ate ______ at lunch because the food was terrible. A．anything B．nothing C．something D．everything 13．---Is_______here？ ---No.Li Lei and Han Mei have asked for leave A．everybody B．somebody C．anybody D．nobody 14．I have tried several jackets, but _________ of them fits me well. A．both B．neither C．all D．none 15．—Shall we meet at 10 o’clock tomorrow morning? —I won’t be free then .Let’s make it ______day.
英语比赛演讲：我喜欢运动-英语演讲稿 my favourite sport good afternoon, ladies and gentlemen. it’s my great pleasure to be here sharing my speech with you. today my topic is my favourite sport. look at my healthy skin , oh! can you guess which sport i like best? yes,it’s swimming !that’s why i look so handsome. when i was only 5 years old, i began to learn how to swim and i like it. i think swimming is an interesting sport and it’s exciting. it’s also a good way to keep fit . every summer, i go to swimming school . my parents say i’ll have a good health if i insist swimming in a right way. and i can grow taller if i go to swim often. so i always ask my coach some questions on swimming and he always helps me a lot. i can swim so well and i can swim breaststroke, backstroke and freestyle. if you also like swimming, join me! thank you! 我最喜欢的运动
尊敬的领导，老师，亲爱的同学们， 大家好！我是5班的梁浩东。今天早上我坐车来学校的路上，我仔细观察了路上形形色色的人，有开着小车衣着精致的叔叔阿姨，有市场带着倦容的卖各种早点的阿姨，还有偶尔穿梭于人群中衣衫褴褛的乞丐。于是我问自己，十几年后我会成为怎样的自己，想成为社会成功人士还是碌碌无为的人呢，答案肯定是前者。那么十几年后我怎样才能如愿以偿呢，成为一个受人尊重，有价值的人呢？正如我今天演讲的题目是：自主管理。 大家都知道爱玩是我们孩子的天性，学习也是我们的责任和义务。要怎样处理好这些矛盾，提高自主管理呢？ 首先，我们要有小主人翁思想，自己做自己的主人，要认识到我们学习，生活这一切都是我们自己走自己的人生路，并不是为了报答父母，更不是为了敷衍老师。 我认为自主管理又可以理解为自我管理，在学习和生活中无处不在，比如通过老师，小组长来管理约束行为和同学们对自身行为的管理都属于自我管理。比如我们到一个旅游景点，看到一块大石头，有的同学特别兴奋，会想在上面刻上：某某某到此一游话。这时你就需要自我管理，你需要提醒自己，这样做会破坏景点，而且是一种素质低下的表现。你设想一下，如果别人家小孩去你家墙上乱涂乱画，你是何种感受。同样我们把自主管理放到学习上，在我们想偷懒，想逃避，想放弃的时候，我们可以通过自主管理来避免这些，通过他人或者自己的力量来完成。例如我会制定作息时间计划表，里面包括学习，运动，玩耍等内容的完成时间。那些学校学习尖子，他们学习好是智商高于我们吗，其实不然，在我所了解的哪些优秀的学霸传授经验里，就提到要能够自我管理，规范好学习时间的分分秒秒，只有辛勤的付出，才能取得优异成绩。 在现实生活中，无数成功人士告诉我们自主管理的重要性。十几年后我想成为一位优秀的，为国家多做贡献的人。亲爱的同学们，你们们？让我们从现在开始重视和执行自主管理，十几年后成为那个你想成为的人。 谢谢大家！
一、选择题 1．Lily is a very kind girl. We all love ______. A．you B．him C．them D．her 2．As volunteers, they should do ______to help the children in trouble. A．nothing B．anybody C．something D．somebody 3．—Hi, Anna. Are these your sister’s pencils? —Oh, no. The y’re not ______. A．her B．him C．hers D．his 4．—Hurry up! The bus is coming. —Wait a moment, please! Let me check if there’s ________ left. A．anything else B．important something C．other things 5．Helen has got two brothers. _____ of them likes chocolate, but she loves it. A．Neither B．None C．Each D．Any 6．—When is your father’s birthday? —________ birthday is on April 2nd. A．He B．She C．His D．Him 7．I left a message to my parents yesterday, but ______ of them called me back. A．both B．none C．neither 8．—Which do you prefer, coffee or tea. —_________, thanks. I’d like a cup of tea. A．Either B．Both C．Neither D．None 9．—Shall we meet at 10 o’clock tomorrow morning? —I won’t be free then .Let’s make it ______day. A．other B．the other C．another D．others 10．Dear boys and girls, you will face the most important examination in less than 100 days. ________________ and go out of your way, and you will get a satisfying result. A．Have confidence in yourself B．Being confident of yourself C．Have confidence in yourselves 11．As for__________students from Grade 9, the biggest __________ is learning how to take care of ourselves as well as improve our grades. A．us , challenge B．Our, chance C．we , choice 12．Did you buy ________ in the supermarket? A．anything delicious B．delicious anything C．something delicious D．delicious something 13．After chatting happily with the new student in my class, I gave her my QQ number and she gave me . A．she B．hers C．her D．herself