| 摘要: |
| 在非均匀煤屑起动试验的基础上，对非均匀沙粗化过程中的起动作了探讨。推导出同时反映隐蔽和暴露作用的非均匀沙起动流速计算式，并进行了验证。该式还可自动退化为均匀沙起动流速的计算式。 |
| 关键词: 非均匀沙的起动，流速，计算式 |
| DOI： |
| 分类号:TV142 |
| 基金项目: |
|
| Threshold motion of cohesionless and nonuniform sediment |
|
Cao Minxiong
|
|
Nanjing Hydraulic Research institute
|
| Abstract: |
| The threshold motion of nonuniform sediment is discussed by the experiment of nonuniform coal dust for threshold motion. The formula of computing the velocity of threshold motion with consideration of both expose and shelter actions is established and verified. The formula can be simplified as the formula of uniform sediment. |
| Key words: threshold motion of nonuniform sediment,velocity,formula |
