大西客运专线运城盆地沿线地裂缝特征及评价
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(建筑工程管理)大西客专(原平至西安段)线下工程沉降变形观测及评估方案大西客专(原平至西安段)线下工程沉降变形观测及评估方案大西客运专线公司二〇一〇年三月目录第一章总则1一、适用范围1二、工作依据1第二章组织管理3一、职责分工3(一)建设单位3(二)施工单位3(三)监理单位4(四)设计单位4(五)咨询单位5(六)评估单位5二、工作程序5(一)施工单位5(二)监理单位6(三)设计单位6(四)咨询单位7(五)评估单位7(六)建设单位7第三章通用要求9一.沉降变形测量等级及精度要求9二.沉降变形监测网主要技术要求及建网方式9三.沉降变形测量点的布置要求11四.沉降变形监测测量工作基本要求12五.沉降变形监测观测具体要求12六.沉降变形监测平行检测工作14第四章专业要求15一、路基工程15(一)路基沉降变形观测15(二)路基工程沉降评估24(三)过渡段沉降变形观测26(四)过渡段的沉降评估27二、桥涵工程28(一)一般规定28(二)桥涵变形控制标准28(三)变形观测方案29(四)观测资料要求39(五)沉降评估40(六)其他43三、隧道工程43(一)一般规定43(二)沉降观测的内容44(三)沉降观测点的布置44(四)观测精度45(五)沉降观测频度45(六)沉降评估45四、综合评估47附件一:线下工程沉降变形观测及评估流程图48附件二:资料传递程序50附件三:各单位责任人名单52附件四:附表53附表1 工程沉降变形观测准备工作检查记录表53附表2 工程沉降变形观测结果评估验收记录表54附表3 沉降水准测量记录表55附表4 路基沉降观测记录表(沉降观测桩)59附表5 路基观测桩沉降量记录汇总表60附表6 路基沉降观测记录表(沉降板)61附表7 路基沉降板观测记录汇总表(沉降板)62附表8 路基沉降板观测记录表(剖面管)63附表9 路基分层沉降观测记录表64附表10 路基分层沉降观测记录汇总表65附表11 路基边桩位移观测记录表66附表12 路基边桩位移观测记录汇总表67附表13 过渡段沉降量记录汇总表68附表14 桥梁墩台沉降观测汇总表69附表15 桥梁墩(台)沉降量记录表70附表16 桥梁墩(台)沉降量记录汇总表71附表17 涵洞沉降量记录表72附表18 涵洞沉降量记录汇总表73附表19 隧道沉降量记录表74附表20 隧道沉降量记录汇总表75附表21 横剖面沉降测试记录表76第一章总则为指导大西客专(原平至西安段)对路基(含过渡段)、桥梁、涵洞、隧道等线下工程的沉降变形观测、无碴轨道铺设条件的评估工作,制定本方案。
大西客运专线黄土隧道施工处理技术要点摘要:根据多年的工程经验,结合大(同)西(安)客运专线大断面黄土隧道隧道、地基处理设计、施工及科研情况,重点阐述了湿陷性黄土地区隧道与隧道地基处理技术技术要点,并提出了合理的解决方案,对大断面黄土隧道与地基处理设计、施工有一定的指导意义。
关键词:客运专线;湿陷性黄土隧道;施工Abstract: according to the years of engineering experience, with big (with) the west (Ann) special passenger line large sections loess tunnel tunnel, foundation treatment design, construction and scientific research, this paper mainly discusses the collapsible loess area tunnel and tunnel foundation treatment technology key points, and put forward the reasonable solutions, large sections of the loess tunnel and ground treatment design, construction has some significance.Keywords: passenger special line; Collapsible loess tunnel; construction1工程概况新建铁路大同至西安客运专线自北向南经过恒山低中山区、忻定盆地、系舟山余脉丘陵区、太岳山低山丘陵区、临汾盆地、运城盆地、渭北黄土台塬及关中平原。
正线全长678.4km,沿线新黄土分布广泛,多具湿陷性,主要分布于各盆地边缘。
大西客专跨越地裂缝对策与工程措施研究刘江川;杨树俊【摘要】随着我国高速铁路的大规模建设,地裂缝对高速铁路的影响逐渐显现,成为一种设计与施工须考虑的新型地质灾害,制约着高速铁路的快速发展。
汾渭地堑地裂缝十分发育,大西客专穿越地裂缝没有成功经验可借鉴,该工程建设须突破这一技术瓶颈。
本文分析了大西客专沿线地裂缝成因,探讨了降低地裂缝对工程结构影响的思路,给出了地裂缝对高速铁路工程危险性分级标准,确立了“刚柔结合、适应变形、预留调整、防治并举”的对策,并推荐了桥梁、路基跨越地裂缝可采取的具体工程措施。
%As high speed railway is applied on a large scale in China,ground fissure has become an increasingly challenging defect,w hich left untreated in project design or engineering construction,could prevailas a new geological disease that restrains the rapid development of the country's HSR. Ground fissure,a major defect in the graben area along the Fen and W ei rivers,poses a technical bottleneck for the construction of Datong-Xi'an passenger-dedicated railway,with no successful example to learn from. The paper looks into the formation of such fissures and explores ways to overcome the defect influence to the project,while it provides the HSR criteria to evaluate the risks of ground fissure. O n this basis,the paper proposes the application of both rigid and non-rigid materials,the adaptation to the deformation,as well as the integration of both precaution and afterward adjustment,while specific measures are tailored for bridge and subgrade engineering as w ell.【期刊名称】《铁道建筑》【年(卷),期】2015(000)004【总页数】6页(P101-106)【关键词】客运专线;地裂缝;工程对策【作者】刘江川;杨树俊【作者单位】大西铁路客运专线有限责任公司,山西太原 030027;铁道第三勘察设计院集团有限公司,天津 300251【正文语种】中文【中图分类】U238;U213.1+4山西省是能源大省,既有南北同蒲铁路几乎承担了大秦、丰沙大、京原、石太、侯月线全部的外运货物,运能紧张。
运城市地面沉降SBAS-InSAR监测和敏感性GIS分析张静;张勤;曲菲霏【摘要】以地裂缝分布密集的运城市典型地面沉降区为研究区,采用小基线SBAS-DInSAR算法,利用覆盖该区域的8幅ASAR影像进行干涉处理,获得该区域地面沉降信息,初步揭示了研究区地面沉降的空间分布特征。
在此基础上,搜集利用研究区地质资料,结合GIS空间分析方法,分析了断层、地裂缝等构造因素与地面沉降的关系,建立了研究区地面沉降灾害敏感性分区图,对该区域地面沉降地裂缝灾害的防治工作具有指导作用。
%The city of Yuncheng,located in the Shanxi Graben basin,has suffered large-scale land subsidence and ground fissures,which have seriously constrained urban construction and sustainable economic development of the area.In this paper,the Small Baseline Subset Interferometer Synthetic Aperture Radar(SBAS-InSAR) technique is used to detect and measure ground movement in the area using eight ASAR images.The detailed deformation data obtained by this study revealed the spatial distribution and characteristics of the subsidence.Based on this,GIS was used to show the relationship between subsidence and tectonic factors such as faults and ground fissures,which were determined using previously collected geological data.As a result,the sensitivity index of the study area was determined using the BP neural network method,and the sensitivity level of land subsidence was analyzed using the dimensional analytical method.The results in this paper demonstrate a very powerful conclusion and will contribute to the prevention and mitigation of land subsidence disasters in this region.【期刊名称】《上海国土资源》【年(卷),期】2012(033)001【总页数】4页(P58-61)【关键词】地面沉降监测;SBAS-InSAR技术;敏感性分析;地质灾害防治【作者】张静;张勤;曲菲霏【作者单位】长安大学地质工程与测绘学院,西安710054;长安大学地质工程与测绘学院,西安710054/西部矿产资源与地质工程教育部重点实验室,西安710054;长安大学地质工程与测绘学院,西安710054/西部矿产资源与地质工程教育部重点实验室,西安710054【正文语种】中文【中图分类】P642.22地面沉降是因自然或人为等因素引起的地面标高损失的地质现象,在世界各地普遍存在[1]。
干旱地区双块式无砟轨道道床板混凝土裂缝的分析与控制措施干旱地区双块式无砟轨道道床板混凝土裂缝的分析与控制措施摘要:无砟轨道作为一种露天放置、反复承受列车荷载的结构物,在列车荷载、温度变化、基础变形以及混凝土自身收缩变形的影响下容易产生裂缝。
裂缝一旦形成则危害较大,就会降低无砟轨道的绝缘性能,削弱轨道的承载力,同时还可能会危害到无砟轨道的使用安全。
本文介绍了干旱地区双块式无砟轨道道床板混凝土易开裂的成因,通过对实体结构调查,分析了道床板混凝土的各种裂纹形式及其成因,并从材料和施工方面提出了防治双块式无砟轨道道床板裂缝的具体措施。
关键词:双块式无砟轨道;道床板混凝土裂缝;原因;控制Abstract: without a frantic jumble rail as an open place, of the structures under train load, the train load, temperature, foundation deformation and shrinkage deformation of concrete itself under the influence of cracks easily. Crack once formed the harm is bigger, can reduce without a frantic jumble rail insulation, weaken the bearing capacity of the track, also may be to compromise without a frantic jumble track the use of security. Double block in arid regions were introduced in this paper the causes of concrete cracking easily without a frantic jumble rail way bedplate, through the entity structure investigation, analyzes several kinds of concrete way bedplate crack forms and its reasons, and puts forward prevention and control from the aspects of material and construction of double block without a frantic jumble of rail way bedplate crack concrete measures.Key words: double block without a frantic jumble orbit; The bed board concrete crack; The reason; control中图分类号:TV543+.6 文献标识码:A文章编号:2095-2104(2013)前言兰新第二双线跨越甘肃省、青海省、新疆维吾尔自治区三省区,线路东起甘肃省省会兰州市,西至新疆维吾尔自治区首府乌鲁木齐市,线路正线全长1775.8 公里。