非均匀沙恢复饱和系数研究综述  

Summary of Non-uniform Sediment Coefficient of Saturation Recovery

作　　者：任方方[1] 郭巨海[1] 黄惠明[1] 王义刚[1] 

机构地区：[1]河海大学港口海岸与近海工程学院,江苏南京210098

出　　处：《浙江水利科技》2014年第5期5-7,12,共4页Zhejiang Hydrotechnics

基　　金：国家科技支撑计划项目(2012BAB03B01);江苏省自然科学青年基金项目(BK2012411)

摘　　要：恢复饱和系数是研究河床演变的一个重要参数,它的选取至关重要。重点介绍了目前国内关于非均匀沙恢复饱和系数的主要研究方法:一维超饱和输沙法和泥沙运动统计理论法。一维超饱和输沙法是通过对一维河床变形方程进行简化和分析,得到适用于该地区的恢复饱和系数,韩其为等基于泥沙运动统计理论,建立了相应的恢复饱和系数表达式。通过总结归纳2种方法得到的研究成果,分析各家公式的差异及适用范围,考虑恢复饱和系数的影响因素,建立了恢复饱和系数一般通用公式,在工程实践中,考虑各个影响因子,对公式中的参数进行率定即可。Coefficient of saturation recovery is a very important parameter in fluvial process. This paper focuses on two main methods in domestic： ID super- saturated sediment transport law and sediment movement statistical theory method. By simplifying the 1D bed deformation equations, 1D super- saturated sediment transport method gets recovery saturation coefficient applied to the specific region; Han Qiwei established a corresponding recovery saturation coefficient expression which was based on sediment movement statistical theory. By summarizing the research results, analyzing differences in various formulas and scope of application, considering restoring saturation factor influencing factors, this paper establishes a general formula for the general coefficient of saturation recovery. In engineering practice, the parameter is calibrated by means of considering the impact of various factors on the formula.

关 键 词：非均匀沙 一维超饱和输沙 恢复饱和系数 泥沙运动 统计理论 

分 类 号：TV143[水利工程—水力学及河流动力学]