泥沙起动公式的珊瑚砂适用性研究
首发时间:2009-06-22
摘要:珊瑚砂是发育于热带海洋的一种特殊泥沙,其独特的物质组成、生长环境使之表现出与陆源石英砂不同的物理性状及运动特性。目前针对珊瑚砂运动特性开展的研究极少,本文开展了珊瑚砂起动水槽试验,试验结果表明,珊瑚砂的起动流速、波高较经验公式计算值要小10%左右。以现有检验公式为基础,通过试验数据拟合适合珊瑚砂的经验系数。
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The applicability research of the incident motion formula for coral sand
Abstract:Coral sand is a particular kind of sediment which exists in the tropical ocean. Physical properties and movement characteristics were different from quartz sand due to its components and development environment. At present, there is less study on starting of coral sand. In this paper; the results of flume experiment are 10% smaller than the calculated values which were counted by empirical formulas. Based on the experimental data, the experience coefficient that was suitable for coral sand was given.
Keywords: Coral sand flume experiment incipient motion experience coefficient
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