外海开敞航道回淤量计算方法的述评(下)  

Computation Methods for Estimating the Volume of Silt Deposits in Open Sea Channel(Ⅱ)

作　　者：孙韻华 

机构地区：[1]天津水运工程科学研究所

出　　处：《水运工程》1990年第3期54-56,共3页Port & Waterway Engineering

摘　　要：四、现场资料法 根据现场实测资料来推算当地的淤积情况,通常是最可靠的方法。This paper introduces some computation methods used for estimating the silta-tion volume in open sea channel. These methods include: ( 1 )theoretical computation method,( 2 ) semi-empirical and semi-theoretical formulas, ( 3 ) utilization of on-site test data. The theoretical method utilizes in general the fundamental equation of fluid mechanics and then carries out numerical solution by computer with some simplified assumptions. The semi-empirical and semi-theoretical formulas include Gole formula,Luo Zhao Sheng's sformula, Liu Jia Ju's formula and Cao Zha Te's formula.The on-site methods include open-pit method, computation and analysis of the collected data, and analogue method. The author suggests further more that the following effects must be considered properly, i.e. when the direction of the flow and the direction of the channel do not coincide with each other and when the tide current forms circular flow.

关 键 词：开敞航道 回淤量 计算 

分 类 号：U617.6[交通运输工程—船舶及航道工程]