北京大西沟北沟泥石流堆积物特征  

Characteristics of the debris flow deposits in Daxigou beigou Gully,Beijing

作　　者：杨麒麟[1] 高甲荣[1] 胡封兵[1] 刘瑛[1] 张金瑞[1] 

机构地区：[1]北京林业大学教育部水土保持与荒漠化防治重点实验室,北京100083

出　　处：《中国地质灾害与防治学报》2010年第1期39-41,52,共4页The Chinese Journal of Geological Hazard and Control

基　　金：国家自然科学基金(40771128);国际科技合作项目(2008DFA32270)

摘　　要：文章研究了北京市密云县西白莲峪大西沟北沟泥石流的堆积物特征及其演变过程,指出该堆积物是在泥石流及山体崩塌综合作用下形成,具有泥石流堆积物的典型特征。此外,该文还提出必须加强泥石流危险区的制图及沟道治理工程的建设,才能防治泥石流的发生及现存堆积物的复活。The particle size composition of debris flow deposits are an important feature of the structure,it reflects the dispersion of debris flow deposits,it is an important indicator of debris flow deposits in determining the nature of the engineering geology.Through field surveys and lab experiments,this paper studied the characteristics of debris flow deposits and their evolution in the north of Daxigou valley of the Miyun District of Baijing,noted that the deposits in the debris flow and collapse of the mountain formed under the combined effect,with the typical characteristics of debris flow deposits.At the same time,we must strengthen the debris flow risk zone mapping and channel management project construction in order to control the occurrence of debris flow and the revival of the existing deposits.

关 键 词：北京山区 泥石流 堆积物 粒度参数 

分 类 号：P642[天文地球—工程地质学]