Experimental Study on Blocked Types and Critical Conditions of Window-frame Dam Preventing Debris Flow

赵彦波; 游勇; 柳金峰; 林雪平; 刘曙亮

doi:10.13409/j.cnki.jdpme.2015.02.019

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Experimental Study on Blocked Types and Critical Conditions of Window-frame Dam Preventing Debris Flow

更新时间：2025-12-11

- Experimental Study on Blocked Types and Critical Conditions of Window-frame Dam Preventing Debris Flow
- Vol. 35, Issue 2, Pages: 256-262(2015)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：10.13409/j.cnki.jdpme.2015.02.019
  CLC： 642.23;TV64
- Published：2015
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[1]赵彦波,游勇,柳金峰,林雪平,刘曙亮.泥石流窗口坝闭塞类型及其临界条件实验研究[J].防灾减灾工程学报,2015,35(02):256-262.

赵彦波, 游勇, 柳金峰, et al. Experimental Study on Blocked Types and Critical Conditions of Window-frame Dam Preventing Debris Flow[J]. 2015, 35(2): 256-262.
[1]赵彦波,游勇,柳金峰,林雪平,刘曙亮.泥石流窗口坝闭塞类型及其临界条件实验研究[J].防灾减灾工程学报,2015,35(02):256-262. DOI： 10.13409/j.cnki.jdpme.2015.02.019.

赵彦波, 游勇, 柳金峰, et al. Experimental Study on Blocked Types and Critical Conditions of Window-frame Dam Preventing Debris Flow[J]. 2015, 35(2): 256-262. DOI： 10.13409/j.cnki.jdpme.2015.02.019.

摘要

窗口坝是泥石流拦挡坝常用类型之一

其设计仍以设计者的经验和水工设计方法为主

尚缺乏理论依据和技术支持。窗口坝设计时如何选择合理的开口尺寸、数量

使其达到良好的拦砂效果

是目前急需解决的技术问题。通过实验对窗口坝拦截不同性质泥石流时的闭塞类型及其临界条件进行了探讨

发现窗口坝拦截稀性、过渡性泥石流时表现为全闭塞、部分闭塞和不闭塞3种类型:当F≤0.95时

窗口坝全闭塞;当0.95<F≤1.5时

窗口坝部分闭塞;当F>1.5时

窗口坝不闭塞。窗口坝拦截粘性泥石流时表现为全闭塞和部分闭塞2种类型:当F≤2.7时

窗口坝全闭塞;当F>2.7时

窗口坝部分闭塞。

Abstract

The window-frame dam is one of the common countermeasures in debris flow preventing engineering.However

at the moment

the design of window-frame dam is mostly based on designer′s experience and hydraulic design methods

theoretical and technical guides are still lacking.How to select reasonable opening size and quantity are the technical problems which urgently need to be resolved.In order to perfect the design methods

a series of experiments were conducted to research the blocked types and critical conditions of window-frame dam.According to the experiment results

there are three kinds of blocked types of window-frame dam for diluted debris flow and transient debris flow

that is total-blocked type

part-blocked type and opening type:When F≤0.95

window-frame dam is total-blocked;when 0.95<F≤1.5

dam is partblocked;while F>1.5

dam is opening type.And there are two kinds of blocked types of window-frame dam for viscous debris flow

that is total-blocked type

part-blocked type:when F≤2.7

the window-frame dam is total-blocked;when F>2.7

dam is part-blocked.

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references

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