典型堵河型泥石流致灾和防治模式——以平武县卿家沟泥石流为例  

Cause and prevention model of typical river-blocking debris flow disaster:A case study of Qingjia gully debris flow in Pingwu County

作　　者：陈鹏飞 王佩 江雪峰 武荣华 周盼 CHEN Pengfei;WANG Pei;JIANG Xuefeng;WU Ronghua;ZHOU Pan(Regional Geological Survey Brigade of Sichuan Bureau of Geology,Chengdu Sichuan 610213,China;Sichuan Geological Environment Survey and Research Center,Chengdu Sichuan 610081,China)

机构地区：[1]四川省地质矿产勘查开发局区域地质调查队,四川成都610213 [2]四川省地质环境调查研究中心,四川成都610081

出　　处：《中国地质调查》2025年第1期120-128,共9页Geological Survey of China

基　　金：绵阳市发展与改革委员会“平武县2024年度地质灾害综合治理(编号:2311-510700-04-01-465475)”项目资助。

摘　　要：为探寻典型堵河型泥石流致灾和防治模式,以涪江流域中上游典型堵河型泥石流卿家沟为例,通过调查走访、实地测量、综合论证等方法,总结出了典型堵河型泥石流4种主要致灾模式:主河上游淹没及次生灾害、主河下游洪水及次生灾害、主河异岸冲蚀和淹没、泥石流沟口渐进式后退淤堵。基于该型泥石流的基本特征和致灾机理,提出了两种防治模式:一是中上游拦砂固源,沟口原沟排导模式;二是堆积区沟道改移防治模式。结果表明,两种模式在防灾技术层面上均具有较高的可行性。研究可为堵河型泥石流灾害的防治提供新的视角和方法,对类似特征泥石流灾害防治具有借鉴意义。In order to explore the cause and prevention model of typical river-blocking debris flow disaster,the authors took Qingjia gully debris flow,a typical river-blocking debris flow in the middle and upper reaches of Fu river basin as a study case,and adopted the investigation,field measurement,and comprehensive analysis methods.Four main disaster-causing modes of typical river-blocking debris flow were summarized,including upstream inundation and secondary disaster,downstream flooding and secondary disaster,cross-shore erosion and inundation of the main river,and progressive retreat and siltation in the debris flow channel mouth.Two prevention and control models were proposed based on the fundamental characteristics and disaster-causing mechanisms of this type of debris flow.The first model is sediment interception and source stabilization in the middle and upper reaches,and original channel diversion at the mouth of the gully.The second model is deposition area channel relocation and control.The results show that both models have high feasibility at the technical level of disaster prevention.This study could offer new perspectives and methods for the prevention and control of river-blocking debris flow disasters,and has significant reference value for the prevention and control of debris flow disasters with similar characteristics.

关 键 词：堵河型泥石流 淹没灾害 溃坝洪水 异岸冲蚀 渐进式后退淤堵 防治模式 

分 类 号：P642.23[天文地球—工程地质学]