重庆市涪陵区大水井崩滑体变形区特征及诱发因素研究  

Features and inducing factors of Dashuijing collapse deformation body in Fuling District,Chongqing

作　　者：杨春茂 YANG Chun-mao(Nanjiang Hydrogeology Engineering Geology Team,Chongqing Bureau of Geology and Mineral Exploration and Development,Chongqing 401147,China)

机构地区：[1]重庆市地质矿产勘查开发局南江水文地质工程地质队,重庆401147

出　　处：《资源信息与工程》2021年第3期122-124,127,共4页Resource Information and Engineering

摘　　要：大水井崩滑体的滑体土为粉质黏土夹碎块石,滑床为中三叠统雷口坡组页岩、薄层灰岩、泥质白云岩等;1#变形体的“强变形区”滑面已形成,在地表裂缝发育密集区域形成了贯通,而“弱变形区”滑面未形成,变形拉裂现象不甚发育;崩滑体的诱发因素与暴雨冲刷和大量地表水下渗有关,导致下部土体水饱和,进而在自重的作用下下滑导致抗滑桩拉裂。The sliding soil of Dashuijing collapse body is silty clay mixed with crushed stone,and the slide bed consisted of the shale,thin limestone and argillaceous dolomite of the Middle Triassic Leikoupo formation.The slide surface in the"strong deformation zone"of the 1#deformed body had formed,and penetration had formed in the area with dense fracture development on the surface.The slide surface in the"weak deformation zone"has not formed,and the deformation and fracture phenomenon is undeveloped.The inducement of landslide was related to the heavy rain and the infiltration of much surface water,which leaded to the water saturation of the lower soil mass,and then the slide under the action of own weight leaded to the tensile crack of anti-slide pile.

关 键 词：崩滑体 变形特征 诱发因素 大水井 

分 类 号：P642.2[天文地球—工程地质学]