摘要
以小容河流域为研究对象,对小容河流域进行了易发风险分段初步评判,从沟谷泥石流的集水盆地形态特征、可搬运物源属性和分布及储量特征、堆积区地形特征等三方面对泥石流形成条件进行了分析,重新梳理了易发因子,进行沟谷泥石流易发性评价,尝试进行了整个流域泥石流地质灾害易损性、危险性分析评价,并进行了流域分段风险分析评价,提出了小容河流域沟谷泥石流风险管控措施建议。
Taking the Xiaorong River basin as the research object,this paper makes a preliminary assessment of the susceptible sections of the river basin.From the morphology of the catchment basin of the gully debris flow,the source attribute,distribution and reserve of the transportable materials,and the topography of the accumulating area,this paper analyzes the formation conditions and high-risk factors of the debris flow,and makes efforts to evaluate the damage or harm of the geological hazard in the river basin as a whole,makes segmented assessment of the risk along the river basin,and gives suggestions on control of the gully debris flow.
作者
孙健
刘海
刘钦
卢玲
SUN Jian;LIU Hai;LIU Qin;LU Ling(No.332 Unit of Bureau of Geology and Mineral Exploration of Anhui Province,Huangshan,Anhui 245000,China;Public Geological Survey Management Center of Anhui Province,Hefei,Anhui 230040,China)
出处
《安徽地质》
2020年第3期208-213,共6页
Geology of Anhui
基金
安徽省公益性地质调查项目“黄山市徽州区丰乐河流域1∶1万地质灾害详细调查”(编号:2015-g-39)。
关键词
小容河
小流域
沟谷泥石流
风险评价
Xiaorong River
small basin
gully debris flow
risk assessment
