秦巴山区砂泥岩顺层边坡稳定控制性因素及处治措施分析

Analysis on Stability Control Factor and Treatment Measure for Siltstone Bedding Slope in Qinba Mountain Area

砂泥岩顺层边坡崩塌、滑坡等是秦巴山区公路普遍且易发的地质灾害之一,文章结合该地区多个顺层边坡失稳垮塌处治的工程实例,总结了顺层边坡多发失稳模式,并结合该地区工程地质及水文地质条件分析了该地区边坡稳定的主要控制性因素,提出了工程常见的顺层边坡处治措施,包括削坡减载、应用锚固技术、建设支挡工程等,可供类似顺层边坡处治设计参考。

Collapse and landslide of siltstone bedding slope is one of the common and prone geological disasters on highways in Qinba Mountain Area.Based on multiple engineering examples of instability and collapse treatment of bedding slopes in the area,this paper summarizes the high-frequency instability mode of bedding slopes,analyzes the main controlling factors of slope stability in combination with the engineering geological and hydrogeological conditions in the area,and puts forward common treatment measures for bedding slopes in engineering,including slope cutting and load reduction,application of anchoring technology,construction of retaining engineering,etc.,which can be used as a reference for similar bedding slope treatment design.