上海地区地面塌陷形成机理分析研究  

Analysis of the formation mechanism of ground collapse in Shanghai

作　　者：陈敏[1] 何招智 袁家余[1] CHEN Min;HE Zhao-Zhi;YUAN Jia-Yu(Shanghai Geotechnical Engineering Detecting Centre,Shanghai 200436,China;Shanghai Institute of Geological Engineering Exploration,Shanghai 200072,China)

机构地区：[1]上海市岩土工程检测中心,上海200436 [2]上海市地矿工程勘察院,上海200072

出　　处：《上海国土资源》2018年第4期130-133,169,共5页Shanghai Land & Resources

基　　金：上海市规划和国土资源管理局科研项目

摘　　要：随着城市化进程不断加速,浅表地质和道路承载能力不足而引发的地面塌陷成为威胁城市安全和影响人居环境的新型地质灾害之一。通过对2003～2014年上海地区地面塌陷案例剖析,按自然因素、人为活动划分为六种类型,对形成机理与变形破坏进行了分析探讨。试验表明,探地雷达、三维雷达等物探方法是目前较为有效的地面塌陷探测预警手段。With the acceleration of urbanization and rapid growth in infrastructure investment, ground collapse caused by the insufcient carrying capacity of roads and shallow surfcial geology is among the new geological hazards threatening urban security and afecting the human living environment. Based on an analysis of hundreds of ground subsidence cases occurring in Shanghai during the period 2003–2014, we divided ground collapse into six types based on natural factors and human activities. The formation mechanism of various types of ground collapse was analyzed and discussed. The causes and deformational mechanisms of soil erosion, void formation, and ground subsidence were analyzed by illustration and case study. Through research and experimentation, geophysical prospecting methods such as ground penetrating radar and three-dimensional radar are efective methods for detecting and providing an early warning of ground collapse. Through the analysis and discussion of the formation mechanism of ground collapse in the Shanghai area, this study provides a reference for the early warning and prevention of urban ground collapse in China.

关 键 词：地质灾害 地面塌陷 机理分析 灾害防治 

分 类 号：P642.26[天文地球—工程地质学]