黄土沟壑区泥石流发育特征及易发性评价分析——以庆城县庆城镇赵子沟为例  

Analysis on development characteristics and susceptibility evaluation of debris flow in loess gully region-take Zhaozigou,Qingcheng Town,Qingcheng County as an example

作　　者：胡爱萍 杨阳 王昀[3] Hu Aiping;Yang Yang;Wang Yun(School of Civil Engineering,Longdong University,Qingyang 745000,China;Gansu Province Gully Fixing and Tableland Protection Engineering Research Center,Qingyang 745000,China;School of Geography and Urban and Rural Planning,Longdong University,Qingyang 745000,China)

机构地区：[1]陇东学院土木工程学院,甘肃庆阳745000 [2]甘肃省固沟保塬工程研究中心,甘肃庆阳745000 [3]陇东学院地理与城乡规划学院,甘肃庆阳745000

出　　处：《能源与环保》2023年第12期153-157,164,共6页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：甘肃省庆阳市科技重大专项计划项目(QY-STK-2022A-032);甘肃省庆阳市科技计划项目(QY2021A-S057);甘肃省青年科技基金计划项目(22JR5RM212);甘肃省教育厅创新基金项目(2022A-136);陇东学院科研项目(HXZK2309)。

摘　　要：庆城县共发育泥石流沟52条,占地质灾害总数的6.81%,也是本地区危害最为严重的灾害类型之一,研究该区域泥石流的发育特征及易发性评价对泥石流灾害防治、国土空间规划具有重要的现实意义。以庆城县庆城镇赵子沟泥石流为研究对象,在调查研究、资料整理的基础上,系统研究了泥石流发育的基本特征、流域分区特征,明晰了泥石流的形成条件,并进行了易发性评价,计算了泥石流流体特征和流量,预测了泥石流发展趋势,最终提出了对应的治理方案和防治建议。研究可为其他黄土沟壑区沟谷型稀性泥石流灾害防治提供理论和技术支撑,具有一定的参考和借鉴价值。There are 52 debris flow gullies in Qingcheng County,accounting for 6.81%of the total geological disasters,which is also one of the most serious disaster types in this region.It is of great practical significance to study the development characteristics and susceptibility evaluation of debris flow in this region for debris flow disaster prevention and control and territorial spatial planning.Taking Zhaozigou debris flow in Qingcheng Town,Qingcheng County as the research object,this paper systematically studied the basic characteristics of debris flow development and watershed zoning characteristics on the basis of investigation and data collation,clarified the formation conditions of Li debris flow,carried out the susceptibility evaluation,calculated the fluid characteristics and discharge of debris flow,and predicted the development trend of debris flow.Finally,the corresponding control scheme and prevention suggestions were put forward,which can provide theoretical and technical support for the prevention and control of gully type thin debris flow disaster in the study area and other loess gully regions,and has certain reference value.

关 键 词：黄土 沟壑区 泥石流 发育特征 易发性 

分 类 号：P642.2[天文地球—工程地质学]