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泥石流窗口坝调节泥砂粒径试验研究
Alternative TitleExperimental Study on the Function of Window-Frame Dam inChanging Sediment Size Distribution for Debris Flow Prevention
赵彦波1,2; 游勇1; 柳金峰1; 林雪平1,2; 刘曙亮1,2
Corresponding Author游勇
2016-03
Source Publication长江科学院院报
ISSN1001-5485
Volume33Issue:3Pages:9-13
Abstract窗口坝是常用泥石流拦挡坝之一,其泥砂粒径调节能力是窗口坝设计的主要考虑因素,也是目前急需解决的基本问题。通过试验对窗口坝拦截不同性质泥石流的泥砂粒径调节功能进行了探讨,初步研究结果表明:窗口坝具有一定拦粗排细功能,拦粗排细效果对黏性泥石流最差;提出了临界粒径的概念并给出了临界粒径变化范围;临界粒径的大小与变化范围受泥石流性质和窗口坝闭塞类型(全闭塞、部分闭塞、不闭塞)的影响;就同一坝而言,拦截泥砂的临界粒径随泥石流密度增加而增大。
Other AbstractWindow-frame dam is a common measure in debris flow prevention engineering. The function of changing sediment size distribution is one of the main factors in the design of window-frame dam, and is also an urgent issue to be solved. In order to improve the design methods, we conduct a series of experiments to research the function of changing sediment size distribution of window-frame dam. Results show that 1) window-frame dam has a function of trapping coarse sand and discharging fine sand, and this function has a worst performance for viscous debris flow compared with trapping sub-viscous and intermediate debris flow; 2) we put forward the concept of critical particle size for the first time and give a variation range of critical particle; 3) the critical particle size and its variation range were affected by the density of debris flow and the type of window-frame dam (totally blocked, partially blocked, and open dams); 4) the critical particle size increases with the increase of density of debris flow for the same window-frame dam.
Keyword窗口坝 泥石流 粒径调节 闭塞类型 临界粒径
Subject AreaP642.23
DOI10.11988/ckyyb.20140919
Indexed ByCSCD ; 北大中文核心
Language中文
CSCD IDCSCD:5663804
Funding Organization国家科技支撑计划项目(2012BAC06B02) ; 中国科学院重点部署项目(KZZDEW050104)
Citation statistics
Cited Times:2[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/17806
Collection山地灾害与地表过程重点实验室
Affiliation1.中国科学院水利部成都山地灾害与环境研究所, 中国科学院山地灾害与地表过程重点试验室
2.中国科学院大学
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
赵彦波,游勇,柳金峰,等. 泥石流窗口坝调节泥砂粒径试验研究[J]. 长江科学院院报,2016,33(3):9-13.
APA 赵彦波,游勇,柳金峰,林雪平,&刘曙亮.(2016).泥石流窗口坝调节泥砂粒径试验研究.长江科学院院报,33(3),9-13.
MLA 赵彦波,et al."泥石流窗口坝调节泥砂粒径试验研究".长江科学院院报 33.3(2016):9-13.
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