地铁荷载作用下基坑边坡稳定性综合分析实例研究  

Case Study on Comprehensive Analysis of Foundation Pit Slope Stability Under Subway Load

作　　者：黄琳 舒睿 Huang Lin;Shu Rui(Guizhou Communications Planning Survey&Design Institute Company Limited,Guiyang,China)

机构地区：[1]贵州省交通规划勘察设计研究院股份有限公司,贵州贵阳

出　　处：《科学技术创新》2023年第9期192-195,共4页Scientific and Technological Innovation

摘　　要：现行荷载规范中对常规荷载的计算分析都进行了明确,但新兴的地铁相关荷载计算内容尚未完善。在临近地铁的基坑边坡计算中,难以避免地需要考虑地铁运营过程中的荷载,基坑边坡坡顶临近地铁的情况下,边坡稳定性计算过程中把地铁运营影响定量化计算必不可少。同时,在计算得到相关稳定性系数进行支护时,基坑边坡的位移控制要求也很重要。本文以某临近地铁的拟建小区基坑边坡稳定性分析过程为例,对运营地铁所形成的坡顶荷载数值化定量评价分析,对位移控制的具体数值进行计算,为类似临近运营地铁的基坑边坡支护关键问题综合分析提供案例。The current load specifications specify the calculation and analysis of conventional loads,but the emerging subway related load calculation content is not yet perfect.In the calculation of foundation pit slope adjacent to subway,it is inevitable to consider the load during subway operation.When the top of foundation pit slope is adjacent to subway,it is necessary to quantify the impact of subway operation in the slope stability calculation process.At the same time,when calculating the relevant stability coefficient for support,the displacement control requirements of the foundation pit slope are also important.This article takes the stability analysis process of a foundation pit slope in a proposed residential area adjacent to a subway as an example,evaluates and analyzes the numerical value of the slope top load formed by the operating subway,calculates the specific value of displacement control,and provides a case for the comprehensive analysis of key issues of foundation pit slope support similar to the operating subway.

关 键 词：基坑边坡 地铁荷载 稳定性 综合分析 

分 类 号：TU470[建筑科学—结构工程]