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降雨是滑坡失稳破坏的主要诱发因素,回头沟滑坡位于广元市朝天镇双河村,是典型的降雨诱发的顺层岩质滑坡。在研究了回头沟滑坡的工程地质条件及滑坡的基本特征的基础上,介绍了“7.23”降雨过程滑坡的变形破坏特征,论述了滑坡—堰塞湖灾害链效应,分析了滑坡的失稳破坏模式,并对滑坡的稳定性做了工程地质分析,结合工程实际提出了回头沟滑坡防治措施。
Rainfall is the main inducing factor of landslide failure. The Huitougou landslide, located in Shuanghe Village, Chaotian Town, Guangyuan City, is a typical rainfall-induced bedding rock landslide. Based on the study of the engineering geological conditions of Yuantougou landslide and the basic characteristics of the landslide, the deformation and failure characteristics of landslides during the “7.23” rainfall process are introduced. The disasters chain effect of the landslide - dammed lake is discussed, and the landslide loss Stability and failure mode, and the stability of the landslide made an engineering geological analysis, combined with the actual project proposed backstop landslide prevention and control measures.