江淮水利科技2026，Vol.21Issue(2)：1-8,8.DOI:10.20011/j.cnki.JHWR.202602001
江淮地区弱膨胀土力学性能及边坡失稳特征分析
Mechanical properties and slope instability characteristics analysis of weak expansive soils in the Jianghuai region
王磊 1陶文斌 2戴圣轩 1陈礼鹏1
作者信息
- 1. 安徽理工大学,安徽 淮南 232001
- 2. 安徽水利水电职业技术学院,安徽 合肥 231603
- 折叠
摘要
Abstract
With the deepening implementation of the integrated development strategy of the Yangtze River Delta,the scale of engineering construction in the Jianghuai region has been continuously expanding.However,due to the special engineering properties of expansive soils,conventional slope stabilization techniques are often insufficient to ensure long-term stability.Slopes are prone to landslide and instability during the operational stage after undergoing multiple rainfall-evaporation cycles.The results revealed the evolution mechanism of slope failures in expansive soil slopes.Rainfall duration plays a controlling role in slope deformation,while rainfall pattern had a dominant influence on the location of the potential sliding surface.When the number of rainfall cycles exceeded 12,the risk of slope instability increased significantly.Therefore,slope protection engineering in expansive soil areas of the Jianghuai region should strengthen monitoring and inspection during long-term operation and maintenance to effectively reduce the risk of landslide hazards.Based on the characteristics of expansive soils in the Jianghuai region and the background of expressway construction projects,this paper adopted a combination of field investigations and laboratory tests to investigate the engineering physical and mechanical properties and microstructural characteristics of expansive soils under long-term rainfall-drying cycles.Furthermore,a slope stability analysis of expansive soil slopes under rainfall conditions was conducted.关键词
江淮地区/弱膨胀土/边坡工程/降雨循环/滑坡失稳Key words
Jianghuai region/weakly expansive soil/slope engineering/rainfall cycling/landslide instability分类
建筑与水利引用本文复制引用
王磊,陶文斌,戴圣轩,陈礼鹏..江淮地区弱膨胀土力学性能及边坡失稳特征分析[J].江淮水利科技,2026,21(2):1-8,8.
