西安地裂缝对线状工程设施的破坏及其防治措施  

Destruction of Ground Fissure to Linear Project of Xi'an Metro and Prevention Measures

作　　者：高虎艳 李忠生[2] 

机构地区：[1]西安市地下铁道有限责任公司,西安高级工程师710018 [2]长安大学地质工程与测绘学院,西安710054

出　　处：《城市轨道交通研究》2012年第10期86-88,98,共4页Urban Mass Transit

基　　金：陕西省自然科学基础研究计划资助项目(SJ08D04);西安市地下铁道有限责任公司资助项目(D2-KC-0608)

摘　　要：在论述西安地裂缝空间分布特征、活动规律及形成机理基础上,论述了西安地裂缝对各种线状工程设施的破坏方式和破坏程度。针对西安地裂缝的破坏力源于地下深部,工程加固收效甚微的情况,提出了线状工程应对地裂缝的总体防治思路:适应地裂缝变形,与地裂缝活动保持同步。具体措施为:采用化整为零的分段处理思路,各段之间使用柔性接口,同时预留未来调整空间,定期监测,随时调整。Base on the distribution, activity and the mechanism of ground fissure, the pattern and level of the ground fissure destruction in Xi＇an to metro linear projects are dis- cussed. Since the extreme force is from the deep underg-roup, the consolidated engineering is still too weak to resist the ground fissure destruction. So prevention measures are proposed to fit the soil deformation caused by ground fis- sure, and to keep pace with the activities of ground fissure. A concrete measure is taken to break up the whole project into many sections, flexible interfaces are adopted on the joint of two sections. Meanwhile, enough adjusting spaces are reserved, so the deformation is under regular monito- ring, the project components are adjusted at times to fit the ground fissure＇s deformation.

关 键 词：西安 地裂缝 线状工程 防治对策 

分 类 号：U212.22[交通运输工程—道路与铁道工程]