剥蚀丘陵地带地铁高填方边坡稳定性分析及控制措施  

Stability Analysis and Control Measures of Metro High Fill Slope in Denudation Hilly Area

作　　者：江中勇 蒋德辉 郭正伟 JIANG Zhongyong;JIANG Dehui;GUO Zhengwei(China Railway 22^(nd)Bureau Group Fifth Engineering Co.,Ltd.,Chongqing 400700,China)

机构地区：[1]中铁二十二局集团第五工程有限公司,重庆400700

出　　处：《路基工程》2025年第2期222-226,共5页Subgrade Engineering

摘　　要：基于重庆地区地铁金鳌寺车辆段高填方边坡,采用极限平衡法简化Bishop法、Morgenstern-Price法及midas-GTS有限元软件,考虑坡顶荷载、地震和坡内地下水位升高的影响,对高填方边坡稳定性系数进行分析计算。结果表明:该永久填方边坡满足一般工况和地震条件下的稳定性安全要求;降雨作用导致坡内地下水位升高,在坡内水位埋深高于7.75 m时,边坡稳定性系数低于1.35,不满足永久边坡的设计安全值,需通过加强边坡内排水和坡外截水措施控制坡内地下水位,保证边坡安全。Based on the metro high fill slope of Jin'ao Temple Depot in Chongqing,the limit equilibrium method was used to simplify Bishop method,Morgenstern-Price method and midas-GTS finite element software.Considering the influence of slope top load,seism and groundwater level rise in slope,the stability coefficient of high fill slope was analyzed and calculated.The result shows that,the permanent fill slope meets the stability and safety requirements under general working conditions and seismic conditions.However,the rainfall action leads to the increase of the groundwater level in the slope.When the buried depth of the water level in the slope is higher than 7.75 m,the slope stability coefficient will be lower than 1.35,which does not meet the design safety value of the permanent slope.To ensure the safety of the slope,it is necessary to control the groundwater level in the slope by strengthening the drainage in the slope and the water interception outside the slope.

关 键 词：轨道交通 高填方边坡 极限平衡法 水位监测 边坡稳定性 

分 类 号：TU42[建筑科学—岩土工程]