[1]谢涛,韦方强,杨红娟,等.鱼脊型泥石流水石分离结构的关键参数确定[J].山地学报,2015,(01):116.
　XIE Tao,WEI Fangqiang,YANG Hongjuan,et al.Optimal Value of Structural Parameters in a New Watersediment Separation Structure for Debris Flow Defense[J].Mountain Research,2015,(01):116.
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鱼脊型泥石流水石分离结构的关键参数确定()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2015年01期
页码:
116
栏目:
山地灾害
出版日期:
2015-02-01

文章信息/Info

Title:
Optimal Value of Structural Parameters in a New Watersediment Separation Structure for Debris Flow Defense
作者:
谢涛;韦方强;杨红娟;谢湘平;
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;中国科学院大学;
Author(s):
XIE Tao;  WEI Fangqiang;  YANG Hongjuan;  XIE Xiangping
1. Key Laboratory of Mountain Hazards and Surface Process, Chinese Academy of Sciences, Chengdu 610041, China; 2. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China; 3. University of Chinese Academy of Sciences, Beijing 100049, China
关键词:
泥石流; 水石分离; 泥石流防治; 结构尺寸; 模型试验
Keywords:
debris flow; watersediment separation; debris flow defense; structure dimension; model test
分类号:
P642.23
文献标志码:
A
摘要:
鱼脊型水石分离结构是一种新型泥石流防治结构,该结构能有效解决现有水石分离结构不能持续发挥水石分离功能的问题。在工程设计中,为了使其具有最佳的运行效果,必须确定结构的设计参数,给出合理修建尺寸,其中水石分离格栅坡度θ和肋梁与脊梁夹角γ是两个影响水石分离效果的关键参数。通过开展室内模型试验,模拟泥石流在不同格栅坡度和肋梁与脊梁夹角下的水石分离过程;通过对比试验,探讨上述两个参数对水石分离的影响,从而确定其合理取值。试验结果表明:当格栅坡度θ为35°~38.7°、肋梁与脊梁夹角γ为70°~80°时,不仅结构能有分选地将粗颗粒分离出来,而且被分离的粗颗粒在重力下自动滑落到停积场,不堵塞格栅开口。根据一...
Abstract:
A new watersediment separation structure with a herringbone watersediment separation grid has been developed for debris flow defense. Compared to existing structures, this structure can continuously maintain its watersediment separation function. In the design of the structure, the incline angle of herringbone watersediment separation grid θ and intersection angle between ribbed beams and ridge beam γ should be determined. In this paper, in order to determined optimal value of the above parameters, a series of model experiments were developed. The experimental results show that the structure can only separating coarse particle, and the separated coarse particle can automatically leave the grid, when the grid incline angle θ and intersection angle between ribbed beams and ridge beam γ were 35°~38.7° and 70°~80° respectively. According to structural optimum efficiency and the natural angle of repose of sediment, the grid incline angle θ can be equal to the natural angle of repose of sediment, and the intersection angle between ribbed beams and ridge beam γ can be 70°~80°.

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备注/Memo

备注/Memo:
收稿日期(Received date)：2014-04-12；改回日期(Accepted)：2014-05-04。
基金项目(Foundation item)：国家科技支撑项目 (项目编号:2011BAK12B00)。[National Science and Technology Support Program (2011BAK12B00).]
作者简介（Biography）：谢涛 (1986-)，男，重庆黔江人，博士研究生，主要从事泥石流灾害防治研究。[Xie Tao (1986-), male, born in Qianjiang of Chongqing, majoring on debris flow prevention.] E-mail: xietaoimde@163.com *
通信作者(Corresponding author)：韦方强 (1968-)，男，汉族，山东临沭人，研究员，博士，主要从事山地灾害及其减灾技术研究。［Wei Fangqiang (1968－), male, undertaking research on theory and technology of mountain disasters mitigation.］E-mail: fqwei@ imde.ac.cn
更新日期/Last Update: 1900-01-01