基于黏土挖掘的绞刀模型试验研究  

Cutter model experiment based on clay excavation

作　　者：林森 苏召斌 孙守胜 郭喜亮 杨建华[1,2] LIN Sen;SU Zhao-bin;SUN Shou-sheng;GUO Xi-liang;YANG Jian-hua(CCCC-Tianjin Dredging Co.,Ltd.,Tianjin 300461,China;Tianjin Key Laboratory for Dredging Engineering Enterprises,Tianjin 300457,China)

机构地区：[1]中交天津航道局有限公司,天津300461 [2]天津市疏浚技术企业重点试验室,天津300457

出　　处：《水运工程》2023年第S02期38-42,共5页Port & Waterway Engineering

摘　　要：针对我国疏浚技术基础理论研究落后,数值模拟绞刀挖掘黏土不准确等问题,通过理论研究、小规模试制的方法,制备了目标试验用黏土,并研制了一款适用于实验室使用的模型黏土绞刀。在此基础上开展了模型绞刀挖掘黏土的实验室研究,分析绞刀转速、横移速度、泥层厚度、前移距等工艺参数对挖掘试验泥浆浓度的影响规律。得出其选取原则:选择中等绞刀转速,适当降低横移速度,以及在确保桥架前端不阻碍横摆的条件下,优先选用增加前移距的方法提高挖掘断面面积。该研究成果可为黏土挖掘工艺参数的选取提供参考。Aiming at the problems of backward basic theoretical research of dredging technology and inaccurate numerical simulation of cutterhead excavating clay in China, through the methods of theoretical research and small-scale trial production, the target experimental clay is prepared, and a model clay cutterhead suitable for laboratory use is developed. On this basis, the laboratory experimental research of model cutterhead excavating clay was carried out, and the influence of the process parameters such as the rotating speed of cutterhead, traverse speed, mud layer thickness and forward displacement distance on the mud concentration of excavation test was analyzed. The principle is selecting the medium cutter speed, appropriately reducing the traverse speed, and giving priority to the method of increasing forward displacement distance to improve the excavation section area under the condition of ensuring that the front end of the bridge does not hinder the yaw. The research results can provide a reference for the selection of clay excavation process parameters.

关 键 词：疏浚工程 绞刀 黏土挖掘 工艺参数 

分 类 号：U616.5[交通运输工程—船舶及航道工程] U615.31[交通运输工程—船舶与海洋工程]