高密度电法在北京宋庄地裂缝中的应用  

High-density electrical method application in the Beijing Songzhuang ground fissure

作　　者：田苗壮 王荣[1] 赵龙[1] 罗勇[1,2] 王新惠[1] 孔祥如[1] 齐鸣欢 沙特 TIAN Miao-Zhuang;WANG Rong;ZHAO Long;LUO Yong;WANG Xin-Hui;KONG Xiang-Ru;QI Ming-Huan;SHA Te(Beijing Institute of Hydrogeology and Engineering Geology, Beijing 100195, China;Institute of Geology and Geophysics, Chinese Academy of Science, Beijing 100029, China)

机构地区：[1]北京市水文地质工程地质大队,北京100195 [2]中科院地质与地球物理研究所,北京100029

出　　处：《上海国土资源》2017年第3期90-93,共4页Shanghai Land & Resources

基　　金：北京市科技计划课题(Z131100005613022);北京市自然科学基金项目(8162043);北京市地面沉降监测系统年运行费项目(PXM2015-158305-000011;PXM2016-158305-000004);基于北斗卫星的地面沉降监测(121211220184);通州城市副中心地区重大地质问题调查与评价项目地面沉降专题(PXM2016-158203-000008)

摘　　要：宋庄地裂缝是北京地区最新发现的一条破坏性较大的地裂缝,对北京城市副中心地区人民生活和生产造成很大威胁。本文依据前人在研究区已有资料,结合本次研究区开展的高密度电法和槽探工作,对宋庄地裂缝开展浅层探测研究,确定地裂缝深度、位置及破裂模式。结果显示:地裂缝深度约0m-30m之间,高密度电法反演裂缝倾向与调查地裂缝沿线房屋墙体开裂错动现象吻合,槽探验证地裂缝以拉张破裂模式,未发生地表错动现象。此次研究工作为北京城市副中心建设提供地质技术支持。The latest discovered ground fissure in Songzhuang is very destructive,presenting a great threat to the people and critical infrastructure of the sub-center of Beijing.Based on work from previous studies,this thesis presents research into the shallow exploration of the ground fissure,confirming the depth,location,and burst mode of the ground fissure,by combining with the research methods of high-density resistivity analysis and trenching.The depth of ground fissures is determined to vary from0to30m,and the tendency of the high-density electrical method parameter inversion of the fracture is consistent with the phenomenon of wall cracks on buildings.In tensile crack mode,the ground fissure is verified by trenching,as there is no occurrence of surface dislocation.This study provides technical support for the construction of the sub-center in Beijing.

关 键 词：地裂缝 高密度电法 槽探 

分 类 号：P642.26[天文地球—工程地质学]