| 粗化层试验与预报 |
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| 引用本文： | 孙志林,孙志锋.粗化层试验与预报[J].水力发电学报,2000(4):40-48. |
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| 作者姓名： | 孙志林 孙志锋 |
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| 作者单位： | 浙江大学,杭州,310028 |
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| 基金项目： | 国家自然科学基金!资助项目 No.597790 1 0 |
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| 摘 要： | 从试验和理论角度对床面冲刷形成粗化层问题作了研究。基于冲刷粗化试验资料并结合非均匀沙分级起动公式确定了粗化层形成和完全破坏的临界水力条件。文中建立了以非均匀沙分级起动概率为核心可同时预报粗化层级配和冲刷深度的冲刷粗化多步随机模式，预报结果与粗化试验资料颇为一致。
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| 关 键 词： | 粗化层 预报 多步随机模式 冲刷深度 试验 |
Experiment and Prediction of an Armoring Layer |
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| SUN Zhilin,SUN Zhifeng.Experiment and Prediction of an Armoring Layer[J].Journal of Hydroelectric Engineering,2000(4):40-48. |
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| Authors: | SUN Zhilin SUN Zhifeng |
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| Affiliation: | Zhejiang University\ Hangzhou\ 310028 |
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| Abstract: | Experimental and theoretical studies on an armoring layer are made.According to experimental data on armoring layers and a theoretical formula for fractional incipient motion of nonuniform sediment,the critical hydraulic conditions for the formation and full destruction of an armoring layer are determined.A multi\|step stochastic model has been developed in this paper to simultaneously predict the scour depth and the composition of an armoring layer based on the fractional incipient probability of nonuniform sediment.The prediction agrees well with the experimental observation of armoring layers. |
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| Keywords: | Armoring layer Prediction Multi\|step stochastic model Nonuniform sediment Grain\|size distribution Scour depth |
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