含软弱夹层边坡稳定性及抗滑桩支护效果研究  

Study on the Stability of Slopes with Weak Interlayer and the Effect of Anti-slip Pile Support

作　　者：何君 魏平 HE Jun;WEI Ping(Shuifa Planning&Design Co.,Ltd.,Ji’nan 250000,China)

机构地区：[1]水发规划设计有限公司,济南250000

出　　处：《粉煤灰综合利用》2025年第2期85-90,共6页Fly Ash Comprehensive Utilization

摘　　要：为研究含软弱夹层的边坡稳定性,依托某水利工程山体滑坡治理,研究了影响边坡稳定性的因素及抗滑桩治理效果,利用Abaqus软件建模计算,分析抗滑桩参数改变对边坡稳定性的影响。结果表明:边坡各级台阶中,边坡上部的位移相对较大,在边坡的纵深方向上,各级台阶的位移存在一定波动,纵深20.2 m处位移较大,但累积位移始终在较小范围内(±10 mm以内),经过抗滑桩支护处理后,边坡的位移逐渐趋于稳定;降雨及工程活动都会对边坡造成扰动,加速边坡失稳,而抗滑桩加固边坡效果良好,各项位移累计值均稳定在控制量范围内;通过数值模拟对抗滑桩设计进行优化,发现当抗滑桩位于第二级台阶处、桩长23.4 m、桩间距5 m时,方案最为经济合理。To study the stability of slopes containing weak interlayers,based on the treatment of a landslide in a certain water conservancy project,the factors affecting slope stability and the effectiveness of anti slip pile treatment were studied.Abaqus software was used to model and calculate the impact of changes in anti slip pile parameters on slope stability.The results show that the displacement of the upper part of the slope is relatively large among the various steps of the slope.In the depth direction of the slope,there is a certain fluctuation in the displacement of each step.The displacement at a depth of 20.2 m is relatively large,but the cumulative displacement is always within a small range(±10mm).After being supported by anti slip piles,the displacement of the slope gradually tends to stabilize;Rainfall and engineering activities can cause disturbance to the slope,accelerating its instability.However,anti slip piles have a good effect on reinforcing the slope,and the cumulative displacement values are stable within the control range;Through numerical simulation optimization of anti slip pile design,it was found that the most economical and reasonable solution is when the anti slip pile is located at the second step,with a pile length of 23.4 m and a pile spacing of 5 m.

关 键 词：软弱夹层 边坡位移监测 边坡稳定性 抗滑桩设计优化 

分 类 号：TU457[建筑科学—岩土工程]