新型屋脊式拦砂坝拦挡输移性能试验研究

吴佳俊; 杨兴国; 周宏伟; 杨丰荣; 陈昊; 梁煜峰

新型屋脊式拦砂坝拦挡输移性能试验研究

(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)

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出版历程
- 刊出日期: 2018-08-24

Experimental Study of Preventing Debris Flow by Type Debris Dam

(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)

摘要

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。
- 泥石流 /
- 新型屋脊式拦砂坝 /
- 速度变化率 /
- 储流比 /
- 浆砂分离率

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参考文献(23)

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施引文献(7)

期刊类型引用(3)

1.	LI Shuai，GU Tianfeng，WANG Jiading，WANG Fei，LI Pu. Regulation effect of the grille spacing of a funnel-type grating water–sediment separation structure on the debris flow performance. Journal of Mountain Science. 2024(07): 2283-2304 . 必应学术
2.	谢湘平，王小军，谭懿飞，张宇航，黄宏鑫. 组合式格栅装置解决泥石流重力式拦砂坝的淤积问题. 山地学报. 2023(02): 228-242 . 百度学术
3.	谢湘平，韦方强，王小军，杨红娟. 鱼脊型水石分离结构对泥石流的物质与能量调控效果试验研究. 工程科学与技术. 2019(05): 49-59 . 百度学术