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某水库右岸边坡失稳有限元分析研究

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针对某水库右岸边坡出现滑坡失稳情况,结合现场查勘及边坡监测资料,考虑锚索加固作用,采用有限元方法模拟边坡滑坡过程,反演滑坡体抗剪力学参数,探索滑坡发生原因,并分析削坡后边坡稳定性。结果表明,当滑坡体安全系数设置为0。95,经反演试算,滑坡体底滑面抗剪力学参数内摩擦角为16。9°,有效凝聚力为13。5 kPa,采用反演后得到的参数对处置后的边坡进行稳定性复核,各工况下均满足要求。研究成果可为类似边坡工程的设计加固提供借鉴。
Finite Element Analysis of Slope Instability on the Right Bank of a Reservoir
In view of the landslide instability on the right bank slope of a reservoir,combined with the field survey and slope monitoring data,considering the reinforcement effect of anchor cable,the finite element method is used to simulate the slope landslide process,invert the shear mechanical parameters of the landslide body,explore the causes of landslide,and analyze the slope stability after slope cutting.The results show that when the safety factor of the landslide is set to 0.95,the internal friction angle of the shear mechanical parameters of the sliding surface at the bottom of the landslide is 16.9°,and the effective cohesion is 13.5 kPa.The parameters obtained after the inversion are used to review the stability of the disposed slope,which meets the requirements under various working conditions.The research results can provide reference for the design and reinforcement of similar slope projects.

Slopestabilityfinite element simulationinversion

李天琪

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台州市水利水电勘测设计院有限公司,浙江台州 318000

边坡 稳定性 有限元仿真 反演

2024

陕西水利
陕西省城乡供水管理办公室

陕西水利

影响因子:0.185
ISSN:1673-9000
年,卷(期):2024.(8)
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