粤北韶关市曲江区梅子斜滑坡特征及稳定性分析

Characteristics and stability analysis of Meizixie landslide in Qujiang District,Shaoguan City,northern Guangdong Province

研究滑坡特征有助于判定其稳定性。文章以粤北韶关市曲江区枫湾镇梅子斜滑坡为例,在分析隐患区地质环境背景的基础上,调查梅子斜滑坡的基本特征,分析在不同工况下该滑坡的稳定性。研究结果表明:梅子斜滑坡地质环境条件复杂程度为复杂;梅子斜滑坡为浅层滑坡、坡残积层滑坡、牵引式滑坡;地形地貌和工程地质条件是影响梅子斜滑坡稳定性的主要内在因素,降雨和人类工程活动为主要的诱发因素;在天然工况下梅子斜滑坡稳定性处于基本稳定—稳定状态,但在暴雨工况下为欠稳定—不稳定状态。

The study of landslide characteristics is helpful to determine its stability.Taking Meizixie landslide in Fengwan Town,Qujiang District,Shaoguan City,northern Guangdong Province as an example,this article analyzed the basic characteristics of Meizixie landslide and its stability under different working conditions,based on an analysis of the geological environment background in the high-risk areas.The results show that the geological environment conditions of Meizixie landslide are complicated.The Meizixie landslide is categorized as shallow landslide,eluvial and residual landslide,and traction landslide.The topography,landform,and engineering geological conditions are the main internal factors affecting the stability of Meizixie landslide,while rainfall and human engineering activities are the primary triggering factors.Under natural conditions,the stability of Meizixie landslide ranges from basically stability and stability,but under heavy rain conditions,it shifts to unstability.