重庆市镇安场变形体与库岸岸勘查治理  

Analyses and preventive measures of dangerous slopes in reservoir banks near the Town of Zhenanchang of Chongqing City

作　　者：付治国[1] 印修章[1] 田修启[1] 

机构地区：[1]河南省地质矿产勘查开发局第二地质勘查院,河南许昌461000

出　　处：《中国地质灾害与防治学报》2006年第1期28-32,共5页The Chinese Journal of Geological Hazard and Control

摘　　要：对镇安场变形体、库岸特征及其稳定性研究目的是为三峡水库区三期地质灾害勘察与治理提供参考依据。通过对该变形体的工程地质勘察,取得了变形体及滑移带的近期变形特征,确定出变形体的稳定系数。给出变形体在天然状态下、连续高强度暴雨、水库蓄水位达175m及降至145m时荷载受力情况下的一系列参数,并作出稳定性简评。通过对库岸现状的定量勘查,采用对未来坍岸破坏方式的预测,用类比及计算法得出当库水位动、静态发生改变时变形体的变形情况及变形体与库岸防治设计的有关参数。其中浅基础下岩石地基承载力的经验参数为:强风化泥岩300kPa,强风化砂岩500kPa,中等风化泥岩1000kPa,中等风化砂岩2000kPa;基底摩擦系数为:泥岩0.4,砂岩0.5;墙后填土重度20kN/m3。按上述各项参数实施防治措施将取得较好的效果。Based on engineering geological exploration, deformation characteristics of dangerous slopes and reservoir banks are analysed. Their stabilities under different conditions, natural state, successive high strong storm, load force under the water level of 175m to 145m concerning the possible reservoir bank collapse are evaluated. Furthermore, the parameters for design of the preventive works against the deformation of the slopes and the reservoir bank are proposed. The parameters of the rock basement load force under the shallow base are： strong weathered mudstone, 300kPa, strong weathered sandstone, 500kPa, moderate weathered mudstone, 1000kPa, moderate weathered sandstone, 2000kPa, friction coefficient of mudstone, 0.4, sandstone, 0.5, filling soil behand the retain wall, 20kN/ms .

关 键 词：变形体 库岸 特征分析 防治措施 重庆市镇安场 

分 类 号：P642.2[天文地球—工程地质学]