我国西南某滑坡体稳定性特征综合研究

发布时间：2018-03-15 06:00

本文选题：现场变形监测　切入点：主断面　出处：《金属矿山》2017年06期 　论文类型：期刊论文

【摘要】：在现场工程测量、地质测绘、钻探、原位监测和样品采集与测试等大量工作基础上,分析了该滑坡体变形特征,建立了该滑坡体主断面的工程地质模型,定性和定量分析了该滑坡体的稳定性。采用不平衡传递系数法计算了主断面4种不同深度潜在滑面在自然和暴雨2种不同工况下的稳定系数。综合研究结果表明在天然状态下处于稳定~基本稳定状态,滑坡现状稳定性好,但在暴雨状态下处于稳定~不稳定状态,滑坡稳定性较差;认为2种工况下随着潜在滑面深度加深,其稳定性均增强,越向深部滑动的可能性越小。最后评价了已有防治工程,并提出了2种具体的防治方案。研究结果将对该滑坡体的防治提供较可靠的参考依据。
[Abstract]:Based on a lot of work, such as field engineering survey, geological mapping, drilling, in-situ monitoring and sample collection and testing, the deformation characteristics of the landslide are analyzed, and the engineering geological model of the main section of the landslide is established. The stability of the landslide body is qualitatively and quantitatively analyzed. The stability coefficients of four potential slip surfaces with different depths in the main section under two different conditions of natural and rainstorm are calculated by using the method of unbalanced transfer coefficient. The comprehensive results show that the stability coefficient of the landslide is calculated by using the unbalance transfer coefficient method. In the natural state, it is in a stable to basic stable state. The stability of landslide is good, but in the condition of heavy rain, the stability of landslide is poor, and it is considered that the stability of landslide increases with the depth of potential slip surface in both cases. The possibility of sliding into the deep is smaller. Finally, the existing control projects are evaluated, and two specific control schemes are put forward. The results of the study will provide a more reliable reference for the prevention and control of the landslide.
【作者单位】：四川省煤田地质局一三七队;中国矿业大学资源与地球科学学院;
【基金】：国家重点基础研究发展计划(973计划)项目(编号:2013CB036003)
【分类号】：P642.22

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