摘要
根据沟床水力条件对泥石流浓度的调节作用和泥石流浆体浓度对沟槽输移能力所具有的重要影响 ,建立了由流域产沙条件来估计浆体浓度 ,再由沟槽输移浓度来确定泥石流流量的新方法。经对比检验 ,计算流量与形态调查流量相近 ,平均相对误差为 -6.9%。最大相对误差为-1 4%。
According to the regulative action to mud flow density by the hydraulic conditions of the gully bed and an essential effect of the mud flow density to the moving capacity of the gully,a new method for determining mud flow density by sand producing condition,and then determine the mud flow quantity by gully bed transport density.Through comparison,the calculated discharge and that of pattern investigation are close.The average relative error is -6 9% and the maximum relative error is -14%.
出处
《中国铁道科学》
EI
CAS
CSCD
北大核心
2000年第3期92-98,共7页
China Railway Science
关键词
泥石流流量
输移浓度
浆体浓度
流域产沙条件
Mud flow, Transfer density, Mud flow density, Valley erosion condition
