摘要
本文通过数模对蓄泥库泥沙群体静水沉降速率进行了研究 ,并得到实验验证结果 .这一分析结果最后表明 :建立的浓度 沉速时程关系是合理的 ;考虑浓度变化的泥沙群体沉降过程可分为加速、匀速、减速三个阶段 ;泥沙粒径、泥沙密度、悬液初始浓度对沉速影响较大 ,而悬液初始深度影响较小 .本文建立的沉速与浓度关系对生产实践具有一定的参考价值 .
The theoretical relationship between suspended concentration and settling velocity of sediment group during the settling procedure is established.The result is verified by experimental data.It is found that the established concentration\|settling velocity relationship is reasonable;the settling procedure of sediment group consists of accelerate,uniform and decelerate stages,if the variation of concentration is taken into account;the effects of grain size,density and original concentration on settling velocity are remarkable.
出处
《水利学报》
EI
CSCD
北大核心
2001年第10期19-23,共5页
Journal of Hydraulic Engineering
关键词
沉降速度
群体沉降
疏浚泥沙
蓄泥库
settling velocity
settling of sediment group
dredged sediment
sludge reservoir
