论文总字数：25212字

摘 要

针对江心洲水道LNG船舶的模拟试验情况，分别记录了两种航行状态下LNG船舶的航行数据，经过风致漂移量和流致漂移量的计算，通过叠加原理得到江心洲水道航行时所需航道宽度，通过查阅长江干线航行的相关规定得到航行所需要的水深，在无他船穿越或追越他船等干扰情况下，江心洲水道航道宽度可基本满足1.4万方LNG船舶上下行通过的要求。但是江心洲水道下游LNG船舶通航的主要难点为水道的下游有两股水流交汇于水道进口，流态比较复杂，横流较大，LNG船舶航行较为困难；弯道入口位于水流交汇处之间，船舶进入水道后后受水扰动作用明显，流速较大，船舶操纵难度较大，船舶上下行通过该水域时均应特别谨慎驾驶，随时注意挂高船位，合理调整航速、航向，尽量航行在相应通航分道的中心线附近。弯曲河段的航道水深与航道宽度的设置，基本可以适应航道的自然条件，也符合远期使用的发展。江心洲水道宽窄相间，为分汊河段，长江航道部门应密切关注浅滩变化，发现问题应及时向有关航道疏浚部门及时报告进行工程作业疏浚航道。从江心洲水道弯曲航段的通航水域宽度与航道水深来看，江心洲水道对于LNG船舶有较好的适应性。

关键词：LNG船舶；江心洲水道；航道尺度；适应性

Abstract

According to the simulation test of LNG ships in Jiangxinzhou waterway, the navigation data of LNG ships in two navigation states are recorded respectively. After the calculation of wind-induced drift and flow-induced drift, the required channel width of Jiangxinzhou waterway is obtained by the superposition principle, and the required depth of water is obtained by referring to the relevant provisions of the navigation of the Yangtze River trunk line, so as to cross or overtake other ships without other ships In the case of interference, the channel width of Jiangxinzhou waterway can basically meet the requirements of up and down passage of 14000 m³ LNG ships. However, the main difficulty for LNG ships to navigate downstream of Jiangxinzhou watercourse is that there are two streams of water converging at the entrance of the watercourse, the flow pattern is complex, the cross flow is large, and the navigation of LNG ships is difficult; the entrance of the bend is located between the flow converging points, and the ships are obviously disturbed by the water after entering the watercourse, the flow velocity is large, and the ship operation is difficult, when the ships go up and down through the water area They should drive with special caution, pay attention to the high position at any time, adjust the speed and heading reasonably, and try to navigate near the center line of the corresponding navigable diversion. The setting of channel water depth and channel width can basically adapt to the natural conditions of the channel and meet the development of long-term use. Jiangxinzhou channel is divided into wide and narrow sections. The channel Department of the Yangtze River should pay close attention to the change of shoals, and report to the relevant channel dredging department in time in case of any problem. According to the width of navigable water area and the depth of waterway, Jiangxinzhou waterway has good adaptability to LNG ships.

Key Words：LNG ship; Jiangxinzhou waterway; channel scale; adaptability

目 录

第1章 绪论 1

1.1研究背景 1

1.2研究的目的与意义 1

1.3 国内外研究现状及发展趋势 1

1.3.1船舶模拟试验研究现状 1

1.3.2 LNG船舶通航适应性研究现状 2

1.3.3对江心洲通航环境的研究 2

1.4 研究的主要内容 3

1.4.1 研究内容 3

1.4.2 研究方法 3

第2章 江心洲水道的地理位置与通航环境 5

2.1江心洲水道的地理位置 5

2.2江心洲水道的通航环境 5

第3章 LNG及LNG船舶特性 7

3.1 关于LNG 7

3.2 LNG船舶及特性 7

3.2.1 关于LNG船舶 7

3.2.2 LNG船舶的结构特性 8

3.2.3 LNG 船舶操纵特性 8

3.2.4 LNG船舶的危险特性 8

第4章 LNG船舶在江心洲水道模拟操纵试验 10

4.1试验前准备与计划拟定 10

4.2江心洲水道LNG船舶模拟试验 10

第5章 LNG船舶在江心洲水道航行适应性分析 14

5.1 LNG船舶航行适应性影响因素 14

5.2 LNG船舶与航道尺度关系 14

5.2.1 LNG船舶江心洲水道航行所需航宽 14

5.2.2 LNG船舶江心洲水道航行富裕水深 20

第6章 结论与展望 21

6.1研究结论 21

6.2建议与展望 21

参考文献 23

附录 24

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