谷汝沟植被区泥石流形成过程与启动机理  

Formation Process and Start-up Mechanism of Debris Flow in Gurugou Vegetation Area

作　　者：王勇 张光庆 张弛 王健霖 WANG Yong;ZHANG Guangqing;ZHANG Chi;WANG Jianlin(Sichuan Geological Engineering Group Co.,LTD.,Chengdu 610017)

机构地区：[1]四川省地质工程集团有限责任公司,成都610017

出　　处：《四川地质学报》2024年第4期682-687,共6页Acta Geologica Sichuan

摘　　要：2021年7月14日,黑水县谷汝沟爆发泥石流,造成重大损失。该文从泥石流形成条件、物源启动与转化入手,开展了泥石流形成过程调查和启动机理研究。分析和探讨了谷汝沟植被森林高覆盖沟段爆发泥石流的启动机理,提出了谷汝沟“乔木坝”堵溃引发泥石流的启动机制,树木堵塞桥涵导致泥石流成灾的致灾原因以及防治措施建议,揭示了植被对泥石流启动成灾的影响,为植被高覆盖率区域泥石流的判别和防治提供参考。On July 14,2021,a debris flow broke out in Gurugou,Heishui County,causing heavy losses.This paper analyze the formation conditions,provenance initiation and transformation,the formation process and initiation mechanism in the high vegetation forest covered gully.The start-up mechanism of debris flow caused by the blocking of Qiaomu Dam in Gurugou Valley,the genesis of debris flow disaster caused by trees blocking Bridges and culverts,and suggestions on prevention and control measures are also proposed.The influence of vegetation on the start-up of debris flow disaster is revealed,which provides reference for the identification and prevention of debris flow in areas with high vegetation coverage.

关 键 词：泥石流 堵溃 植被 启动机理 漂木 乔木坝 

分 类 号：P642.23[天文地球—工程地质学]