The invention relates to a method for assisting a cutter suction dredger to pass through a narrow channel by a grab dredger. Comprising the following steps that S1, the stern of the cutter suction dredger is adjusted to face a channel, when the vertical distance between the center of three cable columns of the stern and an inlet of the channel is d1, the cutter suction dredger stops moving, a lower steel pile keeps the position of the dredger, two transverse moving anchors of the bow are thrown, two transverse moving cables are tightened, and anchor braking is completed; s2, the grab dredger slowly gets close to a channel outlet under the assistance of the auxiliary ship, the direction of the grab dredger is adjusted, the body of the grab dredger is transversely arranged at the channel outlet, and when the distance between the stern of the cutter suction dredger and the side of the grab dredger is L1, the lower steel pile of the grab dredger is positioned; s3, the cutter suction dredger lifts the steel pile, a near-side anchor cable winch of the grab dredger takes up a cable, the cutter suction dredger transversely moves a winch to synchronously pay off the cable, the cutter suction dredger slowly moves into the channel, and when the distance between the stern of the cutter suction dredger and the ship side of the grab dredger is L2, the grab dredger stops taking up the cable, the cutter suction dredger stops paying off the cable, and the cutter suction dredger descends the steel pile to be positioned; s4, the grab dredger lifts the steel pile, a far-side anchor cable winch of the grab dredger takes up a cable, a near-side anchor cable is synchronously paid off, the grab dredger slowly gets away from the cutter suction dredger, when the distance between the stern of the cutter suction dredger and the ship side of the grab dredger is L1, the grab dredger stops moving, and the grab dredger is positioned under the steel pile; and S5, repeating the steps S3 and S4. According to the method for assisting the cutter suction dredger in passing through the narrow channel through the grab dredger, the feasibility and safety of operation when the suction dredger passes through the narrow channel are improved.
本发明涉及一种抓斗船辅助绞吸船通过狭窄通道的方法。包括以下步骤,步骤S1,调整绞吸船的船艉朝向通道,当船艉的三缆柱中心至通道入口的垂向距离为d1时,绞吸船停止移船并且下钢桩保持船位,对船艏的两个横移锚进行抛设并且收紧两个横移缆完成刹锚;步骤S2,在辅助船舶的辅助下抓斗船缓慢靠近通道出口,调整抓斗船的方向,使抓斗船船体横向布置在通道出口处,并使得绞吸船船艉与抓斗船船舷的间距为L1时,抓斗船下钢桩定位;步骤S3,绞吸船起升钢桩,抓斗船近侧锚缆绞车收缆,绞吸船横移绞车同步放缆,绞吸船缓慢向通道内移动,当绞吸船船艉与抓斗船船舷的距离为L2时,抓斗船停止收缆、绞吸船停止放缆,绞吸船下钢桩定位;步骤S4,抓斗船起升钢桩,抓斗船远侧锚缆绞车收缆,近侧锚缆同步放缆,抓斗船缓慢远离绞吸船,当绞吸船船艉与抓斗船船舷的间距为L1时抓斗船停止移船,抓斗船下钢桩定位;步骤S5,重复步骤S3和S4。本发明提供了一种抓斗船辅助绞吸船通过狭窄通道的方法,提升吸船通过狭窄通道时操作的可行性以及安全性。
Method for assisting cutter suction dredger to pass through narrow channel by grab dredger
一种抓斗船辅助绞吸船通过狭窄通道的方法
2025-01-03
Patent
Electronic Resource
Chinese
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