长江科学院院报2017，Vol.34Issue(9)：41-46,6.DOI:10.11988/ckyyb.20160513
弃渣型泥石流输沙速率模型试验研究
Model Test on Sediment Discharge Rate ofDebris Flow Induced by Mine Waste
摘要
Abstract
In recent years, debris flow induced by mine waste broke out frequently.With Daxicha gully in the gold mine area of Shaanxi Province as a background, we conducted detailed field investigations on the hazard-inducing conditions and formation conditions of debris flow and found that the study area is of sufficient hazard-inducing conditions with steep terrain and abundant storage of mine waste.Moreover, the debris flow amplifies and develops chain effects along the way.On the basis of filed investigation data, we deduced with the calculation formula of sediment discharge rate, and then set up a flume experiment in accordance with similarity criterion to calibrate the scouring coefficient obtained by the formula.According to model test data, the scouring coefficient varied from 3.2×10-5 to 7.1×10-5 m.s/kg.Finally, the calibrated parameters can be used in researching the processes of runoff yield and concentration of debris flow in small watershed, and also offer reference for the monitoring and early-warning of debris flow.关键词
弃渣型泥石流/输沙速率/水槽模型试验/冲刷系数/产汇流过程Key words
mine waste debris flow/sediment discharge rate/flume model test/scouring coefficient/runoff yield process分类
天文与地球科学引用本文复制引用
朱兴华,庄建琦,李亚哲,张利勇..弃渣型泥石流输沙速率模型试验研究[J].长江科学院院报,2017,34(9):41-46,6.基金项目
国家973计划资助项目(2014CB744702) （2014CB744702）
国家自然科学基金项目(41402255) （41402255）
国家科技支撑计划项目(2012BAC06B02) （2012BAC06B02）
中国博士后基金资助项目(2015M572512) （2015M572512）
中央高校基本科研业务费专项资金项目(310826161025) （310826161025）
