杨家坪地区地面塌陷成因及破坏变形规律分析  

Analysis on the Genesis and Failure Deformation Rule of Land Surface Collapse in Yangjiaping Area

作　　者：汪玉松[1] 徐光黎[2] 滕伟福[2] 徐俊[2] 

机构地区：[1]中国地质大学环境学院,武汉430074 [2]中国地质大学工程学院,武汉430074

出　　处：《安全与环境工程》2004年第4期63-65,共3页Safety and Environmental Engineering

摘　　要：巴东县杨家坪地区出现地面塌陷等地质灾害时间已有十多年 ,且日益严重。本文在分析了杨家坪地区地面塌陷的时间、空间分布规律后 ,指出采矿是造成该地区地面塌陷的重要原因。并用极限平衡拱法阐明了不同地层、不同开挖跨度与冒落高度的关系 ,据此提出了地面塌陷的防治措施。Geological hazard such as land surface collapse was firstly found in Yangjiaping area ten years ago, and it has become increasingly worse in recent years. Based on the occurrence time and spatial distribution principles of land surface collapses, it can be concluded that mining is the main reason for the land surface collapses. Limit equilibrium cove method is used in this paper to illustrate the relationship among lithology, excavation span and inbreak height. And advisable suggestions are put forward for the prevention of land surface collapse according to preceding discussion.

关 键 词：地面塌陷 极限平衡拱 冒落高度 

分 类 号：X43[环境科学与工程—灾害防治]