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Influence of outfitting wharf project at the entrance of tidal river network on water diversion and drainage
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摘要: 与内陆地区相比，城市感潮河网在防洪排涝和水环境保护等方面面临较大压力，沿江水闸利用潮差进行内河引排水是提升感潮河网防洪排涝能力、改善水环境的有效途径，但临江工业的发展与感潮河网引排水容易形成矛盾。以南通农场闸闸口附近的惠生重工3#舾装码头新建工程为背景，采用数学模型研究舾装码头工程对感潮河网引排水的影响，提出一种将船舶概化成活动闸门的船舶阻水作用分析的等效处理方法，并验证其合理性。研究认为舾装码头工程口门拓宽疏浚措施对感潮河网排水排涝有利、对感潮河网引水不利，口门泊船对感潮河网引排水影响甚微。Abstract: Compared with inland areas, the urban tidal river network faces greater pressure in terms of flood and waterlog control and water environment protection. The use of tidal range for inland river diversion and drainage by the sluices along outer river is an effective way to enhance the flood control and drainage capacity of tidal river network and improve its water environment quality. However, the development of riverside industries along outer river is in contradiction with the water diversion and drainage of tidal river network. For arguing the new construction of Huisheng Heavy Industry 3# Outfitting Wharf near the gate of Nantong Farm Sluice, in this research, mathematical models were used to investigate the influence of the outfitting wharf project on the diversion and drainage of tidal river network, and a generalization of ship into movable gate was proposed. The equivalent treatment method for the analysis of the water blocking effect of the ship and its rationality were verified. It is concluded that the widening of the dredging measures at the entrance of the outfitting wharf project are beneficial to the drainage of the tidal river network, but are not good for the water diversion of the tidal river network. Ship mooring at the entrance has little effect on the diversion and drainage of the tidal river network.
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Key words:
- tidal river network /
- outfitting wharf /
- sluice /
- water diversion and drainage /
- numerical simulation
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图 2 营船港验潮站潮位验证（2020年12月10日）
Figure 2. Tide level verification at Yingchuan Port Station
图 10 落急时刻船舯位置处河道断面流速变化
Figure 10. The velocity values of the river section at the midship position at the moment of falling sharp
图 11 涨急时刻船舯位置处河道断面流速变化
Figure 11. The velocity values of the river section at the midship position at the moment of rising sharp
表 1 沿江水闸情况
Table 1. Data of sluices along the Yangtze River
涵闸名称 建成时间 闸孔/个 净宽/
m闸底
高程/m设计流量/
(m3·s−1)南通农场闸 2009年5月 1 12 −3 96 东方红出江闸站 2009年6月 1 5 −1 25 团结闸 2003年12月 3 12 −3 75 注：东方红出江闸建有设计流量为4 m3/s的泵站。 
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表 2 调水期间水闸启闭工况
Table 2. Sluice opening and closing conditions during water transfer
日期 水闸启闭工况 开启时间段 南通农场闸 东方红出江闸 团结闸 农场中心套闸 2020-12-09 完全打开 关闭 关闭 关闭 11:10—17:45 2020-12-10 关闭 完全打开 关闭 关闭 9:55—14:30 2020-12-11 关闭 关闭 完全打开 关闭 13:30—17:30
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表 3 率定验证效果评价
Table 3. The evaluation of calibration and verification effects
评价项 ERMS r CNSE 营船港潮位 0.058 m 0.990 0.944 纬六河水位 0.030 m 0.994 0.941 东方红出江闸流量 1.181 m3/s 0.896 0.764 团结闸流量 2.561 m3/s 0.968 0.831 团结河水位 0.030 m 0.980 0.825
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表 4 码头建成前后排水调度模拟结果
Table 4. Simulation results of drainage with/without the wharf
项目 农场闸1 d
排水总量/
万m3农场闸闸
下断面最
高水位/m农场闸闸
下断面最
低水位/m农场中心
河断面最
高水位/m农场中心
河断面最
低水位/m团结河断
面最高
位/m团结河断
面最低水
位/m王子竖河
断面最高
水位/m王子竖河
断面最低
水位/m建成前① 11.47 2.64 0.86 1.20 1.12 1.20 1.12 1.21 1.11 建成后（无泊船）② 11.51 2.64 0.85 1.20 1.12 1.20 1.12 1.21 1.11 建成后（有泊船）③ 11.51 2.64 0.85 1.20 1.12 1.20 1.12 1.21 1.11 ②−① 0.04 0 −0.01 0 0 0 0 0 0 ③−① 0.04 0 −0.01 0 0 0 0 0 0
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表 5 码头建成前后引水调度模拟结果
Table 5. Simulation results of water diversion with/without the wharf
项目 农场闸1 d
引水总量/
万m3农场闸闸
下断面最
高水位/m农场闸闸
下断面最
低水位/m农场中心
河断面最
高水位/m引水结束后
农场中心
河断面水位/m团结河断
面最高水
位/m引水结束后
团结河断面
水位/m王子竖河
断面最高
水位/m引水结束后
王子竖河断
面水位/m建成前① 28.76 2.85 −0.08 1.18 1.18 1.18 1.18 1.19 1.17 建成后（无泊船）② 27.55 2.86 −0.08 1.18 1.18 1.18 1.18 1.19 1.17 建成后（有泊船）③ 27.54 2.86 −0.08 1.18 1.18 1.18 1.18 1.19 1.17 ②−① −1.21 0.01 0 0 0 0 0 0 0 ③−① −1.22 0.01 0 0 0 0 0 0 0
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