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西藏东南部培龙沟泥石流堵塞坝的形成机理
Alternative TitleFormation of Dam from Debris Flow in the Southeast Tibet
Language中文
程尊兰; 吴积善
Corresponding Author程尊兰
2011
Source Publication第八届海峡两岸山地灾害与环境保育学术研讨会 ; 第八届海峡两岸山地灾害与环境保育学术研讨会论文集
Conference Date2011-7-26
Conference Place新疆乌鲁木齐
Funding Organization中国水利学会;中国水土保持学会;台湾中华水土保持学会
Abstract西藏东南部山高谷深、冰川发育,冰碛等松散堆积物储备丰富,经常发生大型或特大型泥石流堵摩坝。本文针对两藏尔南部培龙沟所发生的3次特大型泥石流中有2 次形成堵塞坝,来剖析泥石流堵摩坝形成的机理和主要因素。提出由于冰省崩所激发的首阵大流量、高速度、多巨砾,并与主河正交的粘性泥石流、最容易形成堵塞 坝。
Other AbstractGlaciers with their deposits abound in the high mountains of the Southeast Tibet.Large debris flow occurs frequently from these deposits and forms dams that block ainstreams.In this paper,sevcn events of large debds flows occurred in four gullies,from which five blocking dams resulted,are discussed in details,focusing on the major factors impacting the dam formation.Result shows that the first surge group caused by snow and ice avalanches,ice·lake break,and large-sealed landslides,with peak discharge and high speed,and in abundance with boulders,a代most likely to form blocking dams.
Keyword西藏东南部 培龙沟泥 石流堵塞坝 形成机理
Document Type会议论文
Identifierhttp://ir.imde.ac.cn/handle/131551/5622
Collection山地灾害与地表过程重点实验室
Recommended Citation
GB/T 7714
程尊兰,吴积善. 西藏东南部培龙沟泥石流堵塞坝的形成机理[C],2011.
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