黄土边坡落水洞的形成演化机理研究  

Formation and Evolution Mechanism of Waterfall Tunnel on Loess Slope

作　　者：郑鹏飞[1] 胡江洋[1] 刘晓京 ZHENG Pengfei;HU Jiangyang;LIU Xiaojing(CCCC First Highway Consultants Co.,LTD,Xi'an 710065,China;Guangzhou Municipal Engineering Design Research Institute Co.,Ltd.,Guangzhou 510000,China)

机构地区：[1]中交第一公路勘察设计研究院有限公司,陕西西安710065 [2]广州市市政工程设计研究总院有限公司,广东广州510000

出　　处：《灾害学》2019年第A01期224-227,共4页Journal of Catastrophology

基　　金：国家自然科学基金项目“基于云平台的低成本高精度GNSS滑坡变形动态监测软硬件技术研究”(211026180341)

摘　　要：以合阳县全兴寨边坡为调查对象。研究发现边坡上落水洞不同的聚集形态可将其分为单洞发育、群洞发育和带状发育。针对落水洞的发育特征,将其演化过程划分为:初始阶段、形成阶段、扩大阶段、破坏消亡阶段四个阶段,四个阶段互相转化,彼此促进,构成了落水洞发育形成的全过程,不同阶段对边坡的破坏效应不同。根据水不同的作用方式,将落水洞的形成机理分为:湿陷-潜蚀-冲蚀型、冲蚀-湿陷-潜蚀型、潜蚀-湿陷-冲蚀型三种。通过对边坡落水洞的形成演化机理深入讨论,对落水洞诱发的地质灾害防治有一定的借鉴意义。Quanxing Zhai Slope in Heyang County was investigated.It is found that the different aggregation patterns of water-fall tunnels on slopes can be divided into single-hole development,group-hole development and zonal development.According to the development characteristics of falling water tunnel,its evolution process is divided into four stages:initial stage,formation stage,expansion stage and destruction and extinction stage.The four stages transform each other and promote each other,forming the whole process of falling water tunnel development and formation.The failure effects of different stages on slope are different.According to the different action modes of water,the formation mechanism of falling water tunnel can be divided into three types:collapsible-submerged erosion-erosion type,erosion-collapsible-submerged erosion type,and latent erosion-collapsible-erosion type.Through the in-depth discussion of the formation and evolution mechanism of the slope water tunnel,it has certain reference significance for the prevention and control of geological hazards induced by the water tunnel.

关 键 词：落水洞 发育特征 演化过程 形成机理 

分 类 号：U416.1[交通运输工程—道路与铁道工程] X43[环境科学与工程—灾害防治]