| 俞亚南,叶培伦.蓄泥库泥沙群体静水沉降速度研究[J].水利学报,2001,32(10):0019-0024 |
| 蓄泥库泥沙群体静水沉降速度研究 |
| Hydrostatic settling velocity of dredged sediment stored in reservoir |
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| DOI： |
| 中文关键词: 沉降速度 群体沉降 疏浚泥沙 蓄泥库 |
| 英文关键词: settling velocity settling of sediment group dredged sediment sludge reservoir |
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| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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. |
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