基于旋转水槽试验的水下与陆上泥石流对比研究  

Subaqueous vs. Subaerial Debris Flows in Rotating Flume Experiment

作　　者：邓检良[1] 柳青 朱昱琛 李花山 徐永福 DENG Jian-Liang LIU Qing ZHU Yu-Chen LI Hua-Shan XU Yong-Fu(School of Naval Architecture, Ocean, and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, Chin)

机构地区：[1]上海交通大学船舶海洋与建筑工程学院,上海200240

出　　处：《中国海洋大学学报（自然科学版）》2017年第10期99-103,共5页Periodical of Ocean University of China

基　　金：国家自然科学基金重点项目(41630633);国家重点研究发展计划项目(2016YFC0401908)资助~~

摘　　要：使用最近研发的旋转水槽制作稳定循环流动的水下泥石流和陆上泥石流,通过实测泥石流的流动形态、阻力坡降和流动速度,对比研究水下泥石流与陆上泥石流的运动特性。本研究表明,在陆上泥石流的基础上直接通过增加水量的方法,在特定条件下可以得到水下泥石流。在旋转水槽试验中,水下泥石流与陆上泥石流具有某些相似的运动特性,例如在水下泥石流中同样可以观测到粗颗粒聚集现象。同时证实了水下泥石流与陆上泥石流两者都具有速率效应。Using the rotating flume experiment apparatus,the authors produced subaqueous and subaerial debris flows.The motion characteristics of subaqueous and subaerial debris flows are compared on the flow pattern,the friction slope and the flow velocity.The results show subaqueous debris flows can be obtained directly by adding water intosubaerial debris flow Under the specific conditions.In the rotating flume experiment,the subaqueous debris flow has some similar motion characteristics as the subaerial debris flow.For example,coarse particle aggregation can also be observed in subaqueous debris flow.It was confirmed that the friction slope is affected by the flow rate in both subaqueous and subaerial debris flows.

关 键 词：水下泥石流 陆上泥石流 阻力坡降 流动速率 旋转水槽试验 

分 类 号：P642.3[天文地球—工程地质学]