西气东输管道工程EJ065桩附近边坡稳定性分析

Assessment on the slope stability around the EJ065 pile on the line of the gas diversion tunnel engineering from the west China to the east

西气东输管道工程EJ0 6 5桩附近边坡陡峻 ,并处于强震区 ,必须进行墩位地基所在岩体和岩壁边坡稳定性评价 (包括震动条件下 ) ,以评价跨越墩位的适宜性。通过野外地质调查确定研究区的区域地震活动、工程地质条件和受力边界条件 ,采集样品进行测试获取岩体的基本物理力学指标 ,作者进行了不同条件下 (天然、饱和、震动力 )的边坡三维模拟定量分析 ,评价了边坡的稳定性 。

Based on the investigation of regional seismic activity, engineering geology conditions and rock mass loading boundaries, physical and mechanic parameters are given by laboratory test of rock samples, and this paper use three dimensional (3-D) numerical simulation method considering three cases (natural state, saturated state, and shaking state) to evaluate the stability of the slopes and afford suggestions to engineering construction.