[1]吴佳俊,杨兴国,周宏伟,等.新型屋脊式拦砂坝拦挡输移性能试验研究[J].中国地质灾害与防治学报,2018,29(4):85-90.
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新型屋脊式拦砂坝拦挡输移性能试验研究()
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《中国地质灾害与防治学报》[ISSN:1006-6977/CN:61-1281/TN]

卷:
29
期数:
2018年4
页码:
85-90
栏目:
出版日期:
2018-08-25

文章信息/Info

Title:
Experimental Study of Preventing Debris Flow by Type Debris Dam
作者:
 吴佳俊; 杨兴国; 周宏伟; 杨丰荣; 陈昊; 梁煜峰;
(1.四川大学水利水电学院,四川成都610065;2.四川省水利水电勘测设计研究院,四川成都610072)
Author(s):
(1.college of Hydraulic and Hydroelectric Engineering, Sichuan University, Sichuan Chengdu 610065, China2.Sichuan Water Resources and Hydroelectric Investigation and Design Institute, Sichuan Chengdu 610072, China)
关键词:
泥石流新型屋脊式拦砂坝速度变化率储流比浆砂分离率
分类号:
TV144
文献标志码:
A
摘要:
随着人们对泥石流拦砂坝的研究与应用,拦挡结构从竖向拦挡逐渐向水平筛分发展。为了对泥石流进行有效筛分和减小泥石流冲击力,提出新型屋脊式拦砂坝,并通过试验研究其对泥石流的拦挡筛分效果。本文通过试验,模拟不同泥石流来量、坝体格栅间距和坝体长度情况下,新型结构对泥石流的拦挡筛分效果(速度变化率、储流比、浆砂分离率)。试验结果表明:增加拦砂坝长度和减小格栅间距都会提高泥石流流速变化率;随着泥石流来量和坝体格栅间距增大,储流比反而减小,储流比最高能达到87.13%;新型结构对泥石流的拦粗排细效果较好,浆砂分离率随格栅间距增加呈现出先升高后降低的趋势,最高可达82.45%;通过二次式拟合得到格栅间距为d85时浆砂分离率最高,推荐将d85作为格栅间距。

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备注/Memo

备注/Memo:
基金项目 收稿日期:
作者简介吴佳俊(1994-),男,硕士研究生,
更新日期/Last Update: 2018-09-14