成球黏性土水力输送阻力特性计算方法  

Calculation method of resistance characteristics for hydraulic transport of clay ball

作　　者：周光涛 秦亮[1] 杨正军 ZHOU Guang-tao;QIN Liang;YANG Zheng-jun(CCCC Tianjin Dredging Co.,Ltd.,Tianjin 300461,China;Tianjin Key Laboratory for Dredging Engineering Enterpris,Tianjin 300457,China)

机构地区：[1]中交天津航道局有限公司,天津300461 [2]天津市疏浚工程技术企业重点实验室,天津300457

出　　处：《水运工程》2019年第8期58-62,共5页Port & Waterway Engineering

摘　　要：密实黏性土在管路水力输送过程中会形成球块状,成球黏性土水力输送计算是国内外疏浚界的难题。立足浆体输送理论,以大型绞吸式挖泥船施工数据为基础,对成球黏性土的管路输送阻力特性进行研究,分析已有各种土质浆体输送理论用于成球黏性土管路阻力特性计算可能产生的偏差,并根据分析结果对成球黏性土输送计算公式进行研究,进而提出可用于成球黏性土输送的计算公式,供工程界与理论界参考。The compact clay will form clay ball during pipeline hydraulic transport.The calculation of hydraulic transport of clay ball is a difficult problem in dredging field at home and abroad.Based on the theory of slurry transportation and construction data of cutter suction dredger,this paper studies the resistance characteristics of pipeline transportation of clay ball,and analyses the deviations that may occur when various theories of soil slurry transport are used to calculate the resistance characteristics of pipelines in clay ball.Based on the analysis results,the calculation formulas of clay ball transport have been studied which can be used as a reference for engineering and theoretical field.

关 键 词：水力输送 成球黏性土 绞吸式挖泥船 输送阻力 计算公式 

分 类 号：U616[交通运输工程—船舶及航道工程]