Aiming at the problem that it is difficult to control the transverse operation of cutter suction dredger in the construction of hard soil,the productivity and stability of"New Dolphin"ship in the dredging construction of coastal LNG project after replacing the seven-arm cutter are verified.Taking the suction vacuum of underwater pump as the research object,the setting method of the operating parameter range of cutter suction dredger transverse dredging based on Xbar-R control chart is proposed,and the calculation results are applied to the subsequent engineering practice.The results show that this method can scientifically and intuitively help the operator to control the optimal parameter range,and then improve the ship productivity.
关键词
控制图/七臂绞刀/水下泵吸入真空
Key words
control chart/seven-arm cutter/underwater pump suction vacuum