红层区山脊滑坡成因分析及治理措施  

Cause Analysis and Control Measures of Landslides on Mountain Ridges in the Red Layer Area

作　　者：易秋阳 李飞腾 Yi Qiuyang;Li Feiteng(Sichuan Communication Survey&Design Institute Co.,Ltd.,Chengdu 610017,China)

机构地区：[1]四川省交通勘察设计研究院有限公司,成都市610017

出　　处：《北方交通》2025年第4期58-61,共4页Northern Communications

摘　　要：川东北某快速公路傍山段右侧为路堑边坡。路堑边坡开挖后,多处山脊附近揭示出较厚覆盖层。在多因素影响下,覆盖层沿基覆界面滑移形成滑坡,严重影响施工及后期运营安全。以达宣快速路为例,对类似山脊附近巨厚堆积体的成因和滑坡形成机制进行分析,并评价其在各种工况下的稳定性。结合稳定分析结果、项目边界条件及技术要求,提出采用微型钢管桩进行治理。治理后的边坡经过多年雨季,现稳定性良好,运营安全。There are cut slopes on the right side of the mountainous section of a highway in northeastern Sichuan.After the excavation of the cut slopes,there are some thick cover layers near the mountain ridges.Under the influence of multiple factors,the cover layers slide along the interface between the foundation and the cover to form landslides,which seriously affects the safety of construction and later operation.Taking the Daxuan expressway as an example,the analysis is made by aiming at the causes and landslide formation mechanisms of the thick accumulation near the similar mountain ridges,and the stability under various working conditions is evaluated.In combination with the stability analysis results,project boundary conditions and technical requirements,it is proposed to use the micro steel pipe piles for treatment.After years of rainy season,the treated slope is now stable and safe to operate.

关 键 词：红层区 山脊堆积层滑坡 成因机制 稳定性分析 滑坡治理 

分 类 号：U416.163[交通运输工程—道路与铁道工程]