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常吉高速沅水沿河段红砂岩边滑坡稳定性分析
STABILITY ANALYSIS OF SLOPE AND LANDSLIDE OF RED SANDSTONES IN YUANSHUI RIVER AT CHANGJI EXPRESSWAY
【Author】 JIN Fuxi~①FENG Zhen~①QING Zhugan~②ZHANG Keneng~①ZHU Ziqiang~②(①School of Geosciences and Environmental Engineering,Central South University,Changsha 410083)(②School of Info-Physics and Geomatics Engineering,Central South University,Changsha 410083)
【机构】 中南大学地学与环境工程学院; 中南大学信息物理工程学院;
【摘要】 通过反分析法和工程经验类比法,研究潜在滑动面抗剪强度,考虑到水对滑动带的软化作用及其抗剪强度的降低,进行稳定性分析计算,并通过剩余下滑力计算确定抗滑措施。依据边坡岩体结构特征、边坡岩层产状几何关系、不良地质现象等因素,将沿线边坡划分为以处治为主的蠕滑区和以监测为主的潜在不稳定区,确保边滑坡治理更加安全、经济和可行。
【Abstract】 The shear strength parameters of potential slide seam are drawn out by back analysis and experience analogy. The shear strength of slide seam would constantly decline because the water intenerates it.Based on further calculation and analysis,rechoose parameters and work out remainder glide - strength.Complying with the rules of safety,economy and feasibility,according to structural character of rock mass,geometrical nexus of rock stratum occurrence and unfavorable geological condition,the route of the zone divides into three segments whose emphases on treatment or deformation monitoring.
【Key words】 Expressway; Red sandstone; Slope stability; Deformation monitoring; Bedding slip;
- 【会议录名称】 第八届全国工程地质大会论文集
- 【会议名称】第八届全国工程地质大会
- 【会议时间】2008-10-31
- 【会议地点】中国上海
- 【分类号】P642.22
- 【主办单位】中国地质学会工程地质专业委员会