[1]谢湘平,韦方强,谢涛,等.山洪中漂木在拦砂坝前堵塞堆积实验[J].山地学报,2014,(02):249.
　XIE Xiangping,WEI Fangqiang,XIE Tao,et al.Experiment on the Clogging and Deposition of Woody Debris Flowing with Torrents in Front of Debris Dams[J].Mountain Research,2014,(02):249.
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山洪中漂木在拦砂坝前堵塞堆积实验()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2014年02期
页码:
249
栏目:
山地灾害
出版日期:
2014-02-01

文章信息/Info

Title:
Experiment on the Clogging and Deposition of Woody Debris Flowing with Torrents in Front of Debris Dams
作者:
谢湘平;韦方强;谢涛;杨红娟;
1.中国科学院山地灾害与地表过程重点实验室/中国科学院水利部成都山地灾害与环境研究所，四川 成都610041；
2.中国科学院大学，北京 100049
Author(s):
XIE Xiangping; WEI Fangqiang; XIE Tao; YANG Hongjuan
1.Key Laboratory of Mountain Hazards and Surface Process，Chinese Academy of Sciences/Institute of Mountain Hazards and Environment， Chinese Academy of Sciences & Ministry of Water Conservancy，Chengdu 610041，China；
2. University of Chinese Academy of Sciences，Beijing 100049，China
关键词:
山洪; 漂木; 拦砂坝; 堵塞; 堆积
Keywords:
torrent; woody debris; debris dam; woody debris clogging; woody debris deposition
分类号:
TV83
文献标志码:
A
摘要:
山洪和泥石流中夹带的漂木在拦砂坝开口处易造成严重堵塞,使坝体对后续流体的分选效果减弱或失效,甚至进一步威胁坝体安全,因此探讨漂木在拦砂坝前的堵塞堆积规律和影响因素对于工程结构设计具有重要意义。考虑漂木长度L、溢流口开口宽度b、漂木量Vw及流体流量V等因素对漂木形成堵塞的影响,通过实验研究了山洪中漂木在拦砂坝前堵塞堆积规律。实验发现漂木在拦砂坝溢流口的堵塞堆积形态主要有三种:溢流口搭桥型,交错咬合型,坝前停积型。漂木堵塞率在L/b<1时基本保持不变,在1<2呈线性增大,在2<3保持基本稳定。漂木大量堵...
Abstract:
Debris flow or torrents with woody debris could weaken the disaster mitigation function or threaten the safety of debris dams for woody debris may clog densely in the spillway. Hence，it is important to study the clogging and deposition regularity of woody debris in front of debris dams for mitigation structure design. According to hydraulic experiments，we considered the impact of woody debris length(L),spillway width(b) ,woody debris volume(Vw) and fluid volume(V) to the woody debris clogging and deposition. The experiment results show that there are three main types of clogging pattern in the spillway. The first one is several logs trapped transversely by the spillway and then trapping following woody debris. The second one is numerous woody debris arrive simultaneously at the spillway interlocked with each other. The third one is short woody debris deposit in Front of the dam adjacent to the spillway. The woody debris clogging rate is lower than 10% and has little change with L/b when L/b<1,while increase firstly and decrease with L/b when 1

参考文献/References:

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[1]谢洪,钟敦伦,王士革,等.1995年康定城区洪灾成因分析[J].山地学报,1997,(02):129.
[2]陶云,唐川,寸灿琼,等.2004-07-05云南德宏州山洪泥石流气象成因分析[J].山地学报,2005,(01):53.
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备注/Memo

备注/Memo:
收稿日期(Received date)：2013-07-03；改回日期(Accepted): 2013-08-19。
基金项目（Foundation item）：国家科技支撑计划项目(2011BAK12B00)。[National Science and Technology Support Program (2011BAK12B00).]
作者简介（Biography）：谢湘平(1987-)，女（土家族），湖南永顺县人，硕士研究生，主要从事泥石流灾害防治研究。[Xie Xiangping(1987-)，female，born in Yongshun county,Hunan Province，M D student，majoring in mountain hazards migtigation.]E-mail：xxp_imde@163.com
更新日期/Last Update: 1900-01-01