詹家湾滑坡地质特征及其稳定性分析评价

英文篇名：Geological Characteristics and Stability Evaluation for Zhanjiawan Landslip
中文刊名：勘察科学技术
英文刊名：Site Investigation Science and Technology
作者：卢邦华 ; 巨广宏 ; 张强
英文作者：Lu Banghua~1 Ju Guanghong~(2 ; 3) Zhang Qiang~2(1.Seismological Bureau of Guangdong Province2.College of Environment and Civil Engineering ; Chengdu University of Technology3.Northwest Investigation & Design Research Academy ; State Power Corporation)
中文关键词：滑坡 ; 地质特征 ; 变形特征 ; 计算工况 ; 稳定性
英文关键词：landslip ; geological characteristic ; deformation characteristic ; computation conditions ; stability
出版日期：2006-06-20
机构：广东省地震局,成都理工大学环境与土木工程学院,成都理工大学环境与土木工程学院广州市510070,成都市610059,国家电力公司西北勘测设计研究院兰州市730050,成都市610059
年：2006
期：03
出版单位：勘察科学技术

摘要

詹家湾滑坡为三峡库区典型的堆积层滑坡,总结该滑坡的发育特征并分析评价其稳定性,对于研究库区同类滑坡具有借鉴意义。基于大量勘探资料,该文从滑坡空间形态、滑坡物质组成及结构特征、滑坡水文地质、滑带土物理力学性质、滑坡成因机制分析、滑坡变形特征等多个方面揭示了詹家湾滑坡的地质特征,并在此基础上按自重、地表荷载、库水位从175m降至145m、地震5、年一遇暴雨等各种工况组合对滑坡稳定性进行了计算,最后综合分析和评价了该滑坡稳定性。分析认为现阶段滑坡处于不稳定状态,须进行工程处理。
Zhanjiawan landslip is a typical talus slide in the reservoir area of Three Gorges project and summarizing developed characteristics of the slide and evaluating its stability is directory and referenced for research of similar slides of reservoir area.Based on abundant investigation data,the paper revealed geological characteristics of the landslip from aspects of spatial shape,physical components,structural characteristics,hydrogeological conditions,physical and mechanical properties for slip band soil,analysis of slide′s forming mechanism and so on.Consequently,the slide stability is computed according to different engineering conditions of deadweight,upper load,reservoir level falling from 175m to 145m,earthquake,rainstorm of five-year cycle and their combination.Finally,the paper aggregately analyses and evaluates slide stability.According to above mentioned analysis and computation,the landslip is in unstable condition at present and needed to carry out engineering improvement.

引文

1张倬元,王士天,王兰生,等.工程地质分析原理.北京:地质出版社,1994
2潘家铮.建筑物的抗滑稳定和滑坡分析.北京:水利出版社,1980