基于强度折减法的兵团第四师某水库库坝区滑坡稳定性评价  

Evaluation of Landslide Stability in a Reservoir Dam Area of the Fourth Division of the Corps Based on Strength Reduction Method

作　　者：邱曼[1] QIU Man(Geological Exploration and Mapping Center of Xinjiang Pro-duction and Construction Corps,Urumqi Xinjiang 830002,China)

机构地区：[1]新疆生产建设兵团地质勘查测绘中心,新疆乌鲁木齐830002

出　　处：《西部探矿工程》2023年第11期1-4,共4页West-China Exploration Engineering

摘　　要：在综合分析兵团第四师某水库库坝区滑坡地质环境条件、地质特征及成因基础上,根据滑坡现今活动特征,结合基于强度折减法的稳定性计算结果,综合评价认为:滑坡现状及正常蓄水后处于基本稳定状态,预测发生强烈地震、暴雨或水库骤降水时滑坡发生较大规模滑动的可能性大;现状边坡、正常蓄水及骤降水时滑坡的滑动最有可能是上部滑体发生浅表层滑移,地震及暴雨工况下最有可能是滑坡整个后缘贯通,整体沿滑面滑移。Based on comprehensive analysis of the geological envi-ronment conditions,geological characteristics and causes of land-slides in a reservoir dam area of the Fourth Division of the Corps,according to the current activity characteristics of landslides,com-bined with the stability calculation results based on the strength re-duction method,the comprehensive evaluation considers that the landslide is in a basic stable state after the current situation and nor-mal impoundment,and it is predicted that there is a great possibili-ty of large-scale sliding of landslides in the event of strong earth-quakes,rainstorm or sudden rainfall in the reservoir.The sliding of the landslide during the current slope,normal water storage and sudden precipitation is most likely to be the shallow surface slid-ing of the upper sliding body.Under the conditions of earthquake and rainstorm,it is most likely that the whole trailing edge of the landslide is connected and the whole landslide slides along the slid-ing surface.

关 键 词：兵团 滑坡特征 滑坡成因 稳定性 

分 类 号：TV5[水利工程—水利水电工程]