南京市某下蜀土边坡稳定性分析及加固措施  

Stability Analysis and Reinforcement Measures of a Xiashu Loess Slope in Nanjing

作　　者：施威 刘刚 邵景晨 宋双双 SHI Wei;LIU Gang;SHAO Jingchen;SONG Shuangshuang(Jiangsu Nanjing Geological Engineering Survey Institute,Nanjing 210041 China;Department of Earth Science and Engineering,Hohai University,Nanjing 210098 China;Nanjing Land Consolidation and Collective Land Acquisition Management Center,Nanjing 210005 China)

机构地区：[1]江苏南京地质工程勘察院,江苏南京210041 [2]河海大学地球科学与工程学院,江苏南京210098 [3]南京市土地整理和集体土地征收管理中心,江苏南京210005

出　　处：《西华大学学报（自然科学版）》2023年第6期104-112,共9页Journal of Xihua University:Natural Science Edition

基　　金：国家自然科学基金资助项目(520034711);江苏省地质工程环境智能监控研究中心开放基金项目(522001212)。

摘　　要：南京地区广泛发育下蜀土边坡,在强降雨条件下极易发生滑坡,对人民生命财产安全产生巨大威胁。本文选取南京典型下蜀土边坡为研究对象,对该边坡进行现场勘查,探明边坡基本特征,分析滑坡影响因素,采用数值模拟的方法对边坡稳定性进行分析,结果表明下蜀土边坡在降雨工况下处于欠稳定状态,天然和地震工况下处于基本稳定状态。针对下蜀土边坡特点进行支护设计和分析,结果表明,削坡减载和设置截排水沟等措施能显著提升下蜀土边坡的稳定性,边坡在各种工况下都能够保持稳定状态,治理措施切实有效。The Xiashu loess slope is widely developed in Nanjing area,which is easy to cause landslide under the condition of heavy rainfall and poses a great threat to people's life and property safety.In this paper,the typical Xiashu loess slope in Nanjing is selected as the research object.This article conducts on-site investigation of the landslide,and explores the basic characteristics of the slope,and analyzes the deformation and failure mechanism of the landslide,and uses numerical simulation methods to analyze the slope stability.The research results show that the slope is in an unstable state under rainfall conditions,and is basically stable under natural and earthquake conditions.Based on the stable state of the slope,support design and analysis were conducted, and the research results show that the stability of the slope after sup-port is significantly improved compared to before support, and it can maintain a stable state under various working conditions. The slope treatment is practical and effective.

关 键 词：下蜀土 土质滑坡 稳定性分析 边坡治理 数值模拟 

分 类 号：P642.22[天文地球—工程地质学]