摘要
岷县地处甘肃省定西市中部,是地质灾害防治重点区域,特别是近年来区内极端天气频发,加之地震及人类工程作用,使得地质灾害特别是泥石流发生规模不断扩大,频率逐年提高。本文以岷县文斗沟泥石流为例,在分析地质环境概况的基础上,研究了文斗沟泥石流形成的条件,认为陡峭的地形,丰富的松散固体物质和充沛的水源是形成文斗沟泥石流的基本条件,共同控制着文斗沟泥石流的形成与发育机制。
Located in the middle of Dingxi City,Gansu Province,Minxian County is a key area for geological disaster prevention and control.Especially in recent years,extreme weather occurred frequently in the area.In addition to earthquakes and human engineering,the scale and frequency of geological disasters,especially debris flow,were increasing year by year.Taking Wendou Gully debris flow in Minxian County as an example,based on the analysis of the geological environment situation,the article studied the formation of Wendou Gully debris flow.Steep terrain,rich loose solid material and abundant source of water were considered as the basic formation conditions of Wendou Gully debris flow,jointly influencing the formation and development mechanism of Wendou Gully debris flow.
作者
张政
刘振华
ZHANG Zheng;LIU Zhenhua(The Second Institute of Geological and Mineral Exploration,Gansu Bureau of Geology and Mineral Exploration and Development,Lanzhou 730300,Gansu,China)
出处
《资源信息与工程》
2021年第6期45-47,共3页
Resource Information and Engineering
关键词
文斗沟泥石流
发育特征
形成条件
岷县
Wendou Gully debris flow
development features
formation conditions
Minxian County
