摘要
断面法计算河道冲淤量原理简单、程序简洁,是最常用也是最广泛使用的方法之一,但重要计算参数"断面间距"不论从定义或是量算尚无统一标准,导致断面法计算河道冲淤量存在一定误差。以长江沙市河段为例,对断面法与体积单元法计算结果进行比较,可认为断面间距并不是断面法计算河道冲淤量方法中的必要参数。
Using the cross- section method to calculatethe scour and silting amount is of simple theory and process. And it is also one of the most common and widely- used methods, but the important calculating peremeter- proficespacing has no standard neither on definition nor on calculation, therefore the cross- section method calculation has a certain mistake. Our original volume element method has unique calculation method and calculating ware. After the researchof volume element method,it is confirmed that profile spacing is an unnecessaryparameter from the angle of silting amount.
出处
《人民珠江》
2016年第5期60-62,共3页
Pearl River
基金
水利部公益性行业科研专项经费项目(201401021)
国家重点基础研究发展计划"973"资助项目(2012CB417001)
关键词
断面法
体积单元法
断面间距
等效容积概化间距
the cross-section method
the volume element method
profile spacing
the equivalent volume of generalized spacing
