摘要
在系统回顾已有成果基础上,引入冲淤判数,通过动床河工模型试验研究了洪水冲刷过程中的床沙变化机理与规律,并基于河床自动调整作用原理建立了在全面概括影响因素的同时又能反映河床与水流依存关系的细沙河流床沙中径计算公式。黄河、西辽河等河流大量实测资料的检验结果表明:建立的公式有较强的适用性,其精度能满足工程需要。
On the basis of systematic review of existing results, the introduction of the number of erosion and deposition by mobile bed model exper- iment to study the process of flood erosion of the bed material mechanism and rules and basing on automatic adjustment action principle of the bed, created the formula of medium size of fine sand river with bed material in a comprehensive overview of factors while reflecting river bed and flow in- terdependence. The test results from a large number of measured data of the Yellow River, Xiliao River and other rivers show that the established formula has strong applicability and its accuracy can meet the engineering needs.
出处
《人民黄河》
CAS
北大核心
2011年第12期38-41,44,共5页
Yellow River
基金
国家自然科学基金重点项目(51039003)
关键词
计算公式
中径
床沙
细沙河流
calculation formula
medium size
bed material
fine sand river
