两种结合抗滑键的自平衡挡墙对滑坡的防治效果研究  

Control Effect of Two Types of Retaining Walls Combined with Anti-slide Tie

作　　者：他国山 刘长青[1] 康凯 张宇翔[1] Ta Guoshan;Liu Changqing;Kang Kai;Zhang Yuxiang(BGI Engineering Consultants Ltd.,Beijing 100038,China)

机构地区：[1]北京市勘察设计研究院有限公司,北京100038

出　　处：《岩土工程技术》2022年第3期203-207,共5页Geotechnical Engineering Technique

摘　　要：以北京延庆区某索道基座滑坡治理工程为背景,通过建模对直立式挡墙、仰斜式挡墙结合抗滑键对滑坡的防治效果进行分析。结果表明:采用自平衡挡墙治理方案时,在抗滑键长度、挡墙高度一定的情况下,当坡顶为自然边坡,且外荷载相对较小时,仰斜式挡墙结合抗滑键对滑坡的防治效果更优;当坡顶存在较大外荷载时,直立式挡墙+抗滑键的自平衡挡墙对滑坡的防治效果更好。根据分析结论,结合治理工程实际条件,治理方案采用了直立式挡墙+抗滑键,目前支护结构运行良好,边坡稳定。可为类似边坡治理工程提供参考。Based on the landslide control project of a cableway base in Yanqing District of Beijing,the prevention and treatment effects of vertical retaining walls and inclined retaining walls combined with anti-slide tie were analyzed through modeling.The results show that for self-balancing retaining wall treatment plan,in the condition of certain length of the anti-slide tie and certain height of the retaining wall,when the top of the slope is a natural side slope and the external load is relatively small,the prevention effect of the inclined retaining wall combined with the anti-slide tie is better;when there is a large external load on the top of the slope,the prevention effect of vertical retaining wall+anti-slide tie balanced retaining wall is better.Through the comparative analysis of two self-balancing retaining walls,the treatment measure of vertical retaining wall+anti-slide tie was finally adopted.The supporting structure is currently operating well and the slope is stable,which has certain reference value for similar slope projects.

关 键 词：重力式挡墙 仰斜式挡墙 抗滑键 数值模拟 滑坡治理 

分 类 号：TU476.4[建筑科学—结构工程]