基于物探成果及变形监测成果的滑坡稳定性研究  

Landslide Stability Research Based on Geophysical Results and Deformation Monitoring Results

作　　者：孙荣厚 李伟[1] 张艳飞 Sun Ronghou;Li Wei;Zhang Yanfei(Beijing Engineering Corporation Limited,Power China;Shenyang Center of China Geological Survey)

机构地区：[1]中国电建集团北京勘测设计研究院有限公司,北京市100024 [2]中国地质调查局沈阳地质调查中心,沈阳市110034

出　　处：《勘察科学技术》2023年第2期49-54,共6页Site Investigation Science and Technology

摘　　要：为合理且有效地掌握滑坡稳定性,该文首先运用物探分析开展滑坡地层分布特征研究,再利用传递系数法和变形预测分别实现滑坡稳定性现状评价和预测评价,两者结果对比,以综合掌握滑坡稳定性。实例分析结果表明:物探分析可以较清晰地划分出土岩分界面,所得反演结果能有效表示出滑坡地层分布,满足后续滑坡稳定性评价要求;通过稳定性评价,得出滑坡现状整体处于稳定状态,且后续仍会进一步保持现状稳定状态,但滑坡前缘局部稳定性偏弱,其稳定性还会进一步减弱,存在更大的失稳风险,因此,需尽快加强滑坡治理,避免前缘局部失稳。In order to grasp the landslide stability reasonably and effectively,this paper first carries out the research on the distribution characteristics of the landslide strata by using the geophysical analysis,and then realizes the status evaluation and prediction evaluation of the landslide stability respectively by using the transfer coefficient method and deformation prediction.Comparing of the two results,the land-slide stability can be grasped comprehensively.The results of the example analysis show that the geophys-ical analysis can clearly divide the interface between the soil and rock,and the obtained inversion results can effectively represent the landslide strata distribution,which can satisfy the subsequent landslide sta-bility requirements.Through the stability evaluation,it can be concluded that the current situation of the landslide is stable as a whole,and this stable state will be further maintained.However,the local stabili-ty of the landslide on its front edge is weak and will be further weakened with a greater risk of instability.Therefore,it is necessary to step up landslide control as soon as possible to avoid local instability of the front edge.

关 键 词：滑坡 物探分析 变形监测 稳定性评价 

分 类 号：P642.22[天文地球—工程地质学] P631[天文地球—地质矿产勘探]