基于受力状态的雾江滑坡体类型判定

发布时间：2018-04-24 16:10

本文选题：滑坡 + 稳定性分析　；参考：《防灾减灾工程学报》2017年04期

【摘要】：从受力状态判定滑坡体的类型是滑坡体合理治理的前提。针对涔天河扩建工程雾江滑坡体的滑坡类型问题,首先对滑坡体地质特征和边坡原型变形监测进行了分析;然后以力学参数地质建议值及室内试验参数为基础,对4个典型剖面分别进行岩土参数的综合反演,再用摩根斯坦-普赖斯法建立计算模型进行稳定性分析。分析表明:雾江滑坡体以缓慢蠕滑变形为主,滑坡前缘浅层拉裂坍滑可能性较大,而滑坡整体快速滑动的可能性较小;水库蓄水前和蓄水后,坡脚处于薄弱区,最易率先发生滑动并牵引其他滑体相继发生滑动,从而判定雾江滑坡体属于牵引式滑坡。
[Abstract]:Judging the type of landslide from the state of force is the premise of rational treatment. Aiming at the landslide type of Wujiang landslide in Shentian River extension Project, this paper analyzes the geological characteristics of the landslide and the deformation monitoring of the slope prototype, and then based on the geological suggested values of mechanical parameters and laboratory test parameters. The geotechnical parameters of four typical sections were inversed and the stability analysis was carried out by using the Mogenstein-Price method. The analysis shows that the landslide body of Wujiang River is dominated by slow creep deformation, the possibility of shallow tensile collapse and collapse in the front edge of the landslide is greater, while the possibility of rapid sliding of the whole landslide is relatively small, and the foot of the slope is in the weak area before and after the reservoir impoundment. It is easy to slide first and slide other sliding bodies one after another, so as to determine that Wujiang landslide belongs to traction landslide.
【作者单位】：三峡大学水利与环境学院;黄河上游水电开发有限责任公司;中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室;湖南涔天河工程建设投资有限责任公司;
【基金】：国家自然科学基金项目(51209124) 国家重点基础研究发展计划(973)项目(2011CB013505)资助
【分类号】：P642.22

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