摘要
无黏性非均匀沙冲刷率的确定对于确定山区河流河道冲刷的程度有很重要的意义。在沙莫夫泥沙起动摩阻流速公式和大量试验的基础上，建立了无黏性非均匀沙的冲刷率公式。冲刷水槽试验数据用最小二乘法拟合，得到了冲刷率和相对切应力的相关关系。试验结果表明，两者存在较好的线性关系。
Study of noncohesive nonuniform sediment scour rate of clear water flow is important for determining the degree of mountain river channel scour. On the basis of the frictional velocity created by Шамов, Г. И. and a large of number of experiments, the formula about nonco- hesive nonuniform sediment scour rate are deduced. The measured data from flume test is filled and simulated by least square method. The eor- relations between scour rate and relative shear stress are derived. The result of experiment and simulation show high linear correlation.
出处
《南水北调与水利科技》
CAS
CSCD
北大核心
2013年第B02期85-87,共3页
South-to-North Water Transfers and Water Science & Technology
基金
四川农业大学“大学生创新性实验计划”资助项目（111062626）
关键词
无黏性非均匀沙
水槽试验
冲刷率
清水水流
noncohesive nonuniform sediment
flume test
scour rate
clear water flow
