中国地质灾害与防治学报2025，Vol.36Issue(3)：108-117,10.DOI:10.16031/j.cnki.issn.1003-8035.202309033
四川炉霍县寿灵寺边坡失稳机理及工程治理
Failure mechanism and controlling measures of cut slope instability at Shouling temple,Luhuo County,Sichuan Province
摘要
Abstract
The Shouling temple in Luhuo County,Sichuan faces an urgent situation due to the construction of the Future Hall.A five-level excavation slope with a height of 21.8 m and a slope angle of 55° to 75° was formed on the northwest side of the site,leading to local damage at the toe of the slope.Field investigation and numerical simulation analysis indicate that the slope formed a circular sliding surface within the silty clay layer,with stress concentration at the toe of the slope.Under rainfall conditions,the bulk density of the soil increases,while the cohesion and internal friction angle decrease sharply.The maximum horizontal displacement can reach 3.4 m,resulting in a pushing-type landslide and slope instability.The study area is located in a high-intensity seismic zone.The vibration loads generated by earthquakes and large-scale machinery operations will have serious adverse effects on the slope.Numerical simulation analysis shows that under seismic conditions,the slope forms a pushing-type landslide,causing shear failure of the foundation soil with an impact depth of approximately 5 m.Considering the stability requirements of the slope and the damage to the foundation soil under seismic conditions,reinforcement measures such as anti-slide piles with grid anchoring were adopted to strengthen the slope,which have been applied to this project with good governance effectiveness.The analysis method and control measures can provide reference experience for the treatment of similar artificial excavation slope projects.关键词
开挖边坡/土质边坡/稳定性分析/数值模拟/工程治理Key words
excavation slope/soil slopes/slope stability analysis/numerical simulation/engineering governance分类
地质学引用本文复制引用
任贺明,王兴政,罗刚..四川炉霍县寿灵寺边坡失稳机理及工程治理[J].中国地质灾害与防治学报,2025,36(3):108-117,10.基金项目
国家重点研发计划项目(2022YFC3005704) （2022YFC3005704）
国家自然科学基金面上项目(42277143) （42277143）
四川省自然资源厅科研项目(KJ-2023-004) （KJ-2023-004）
四川省自然资源厅科研项目(KJ-2023-025) （KJ-2023-025）
