基于传递系数法的人工填土边坡稳定性分析  

Analysis of an Embankment Slope Stability by Using Transfer Function Method

作　　者：耿雪峰 GENG Xuefeng(Shenzhen Geotechnical Investigation&Survey Institute Group Co.,Ltd.,Shenzhen 518028)

机构地区：[1]深圳市勘察测绘院(集团)有限公司,广东深圳518028

出　　处：《土工基础》2023年第6期915-919,共5页Soil Engineering and Foundation

摘　　要：边坡的稳定性分析非常复杂,不同类型边坡稳定性受到不同的影响因素决定。填土边坡受坡高、坡率、填土的土体类型、填土年限和地下水位等因素的影响,与天然边坡的稳定性存在较大差别。以广州市地铁21号线水西车辆段南侧填土边坡为例,采用传递系数法对采石坑回填形成的填土边坡进行稳定性分析。分析了填土边坡治理前后的稳定性,提出边坡支护方案,通过理正软件计算验算支护结构的有效性。研究表明,传递系数法可用于采石坑填土边坡的整体稳定性分析计算,有助于边坡的支护结构位置和受力大小的确定。研究结果对于类似人工填土边坡的加固治理具有一定参考价值。The slope stability analysis is a complicated process,and the stability of the different slopes are affected by different factors.The stability of fill embankment is influence by the height of the slope,slope angle,type of embankment material,age of the embankment and the groundwater conditions.This paper presents the stability analysis results of the backfill embankment for a former gravel quarry by using the transfer function method.The stability before and after improvement of the south side fill embankment of the Shuixi section of Guangzhou Metro No.21 Line was evaluated and the mitigation methods was recommended.The effectiveness of the proposed supporting structure was validated throughout using the commercial analytical software.The results indicate that,the transfer function method can be used for the global stability of the backfill embankment.The location of supporting and magnitude of the forces in the supporting structure can be identified through the transfer function method.

关 键 词：传递系数法 稳定性分析 填土边坡 支护结构 

分 类 号：P642[天文地球—工程地质学]