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Alternative TitleExperimental Study on Energy Dissipation Characteristics of Debris Flow in a Drainage Channel with Step-pool Configuration
孙昊1,2,3; 赵万玉1,2; 游勇1,2; 陈晓清1,2; 陈剑刚1,2
Source Publication防灾减灾工程学报
Contribution Rank1
Other AbstractThe drainage channel with step-pool configuration,which is one of debris flow drainage works and is used in gully with steep gradient,has a good potential application because of its high-performance control effect and engineering value.In order to explore the characteristics of debris flow in a drainage channel with step-pool configuration,debris flow bulk density,scale and depth of step-pool configuration are selected as the main affecting factors and a series of flume experiments are carried out.Debris flow pattern,time-averaged depth and a phenomenon of interchange of materials were investigated along with the characteristics of energy dissipation in this paper.According to the experimental results,the phenomenon was most intense when debris flow with 17kN/m~3 passed through a drainage channel than the other two.And the energy dissipation is mainly shown in the aspects of flow depth changing and turbulence intensifying.The analysis also indicates that the ratio of energy dissipation increased as depth of step-pool configuration increased and was more than 20%basically.The maximum observed ratio of energy dissipation was 73.93%in the experiment where debris flow bulk density was 14kN/m~3,scale was 0.5m~3 and depth of step-pool configuration was 30cm.However,the step-pool configuration with overlarge depth performed evident trapping sediment which contraries the purpose of transporting sediment.Besides,the energy dissipation decreased with the debris flow scale,which had fewer effect than the other two factors.
Keyword梯-潭结构 泥石流排导槽 消能特征 水槽试验
Indexed ByCSCD
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Document Type期刊论文
Corresponding Author游勇
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding 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
孙昊,赵万玉,游勇,等. 梯-潭结构型泥石流排导槽消能特征试验研究[J]. 防灾减灾工程学报,2019,39(1):132-140.
APA 孙昊,赵万玉,游勇,陈晓清,&陈剑刚.(2019).梯-潭结构型泥石流排导槽消能特征试验研究.防灾减灾工程学报,39(1),132-140.
MLA 孙昊,et al."梯-潭结构型泥石流排导槽消能特征试验研究".防灾减灾工程学报 39.1(2019):132-140.
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