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Research on the Multi-Hydraulic Dispatching Scheme of Jinan River Basin Based on Water Environment Treatment
Qing-kui MENG, Yao-hua HU, Wei-hong LIAO, Xiao-hui LEI, Chao WANG
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Research on the Multi-Hydraulic Dispatching Scheme of Jinan River Basin Based on Water Environment Treatment
Due to the geographical environment problems in Fuzhou City， the water level of the rivers in the urban area is much low and the fluidity is very poor， which generated the water pollution problem. In order to maintain the water level of Fuzhou's river course to reach the landscape level and effectively alleviate the water pollution problem，for the river network of the Jinan River-Guangminggang River Basin in the downtown area of Fuzhou，a one-dimensional unsteady flow Saint-Venant equation set is established through the InfoWorks ICM hydrodynamic model. At the same time， nine scheduling schemes are designed based on the actual dispatching situation in Fuzhou. The objective function is to establish whether the control target can be achieved，the opening time of the pump station，the number of gate openings， and the average length of the key section not reaching the landscape water level as the objective function. Comparing the results of 9 scheduling schemes，adjusting the pump and gate configuration， and giving a recommended scheduling scheme. At the same time，a water quality model is established，and water environment dispatching simulations are carried out. The time for the BOD level to change from type Ⅳ to type Ⅲ is used as the objective function to evaluate the dispatching plan，and finally the optimal dispatching plan is given for the realization of the urban area. The study of the "water more water dynamic" dispatching scheme provides an important basis.
InfoWorks ICM / hydrodynamic model / water quality model / scheduling plan evaluation {{custom_keyword}} /
Tab.1 Gate parameter table表1 沿江闸站参数表 |
| 水闸名称 | 总排水量/（m3·s-1） | 闸孔数 | 单孔排水量/（m3·s-1） |
|---|---|---|---|
| 魁岐水闸 | 503 | 5 | 100 |
| 江四水闸 | 81 | 2 | 40 |
| 红星水闸 | 80 | 3 | 27 |
Tab.2 Drainage pump station parameter table表2 排水泵站参数表 |
| 泵站名称 | 设计最大流量/（m3·s-1） | 水泵数量 | 水泵平均设计流量/（m3·s-1） |
|---|---|---|---|
| 魁岐排涝站 | 120 | 3 | 40.0 |
| 魁岐排涝二站 | 80 | 3 | 26.7 |
| 东风排涝站 | 80 | 24 | 3.3 |
| 红星泵站 | 80 | 9 | 8.9 |
Fig.5 The calibration results of the Jin'an River water level process under the typical tide level process line图5 典型潮位过程线下晋安河水位过程率定结果 |
Tab.3 Model calibration results表3 模型率定结果 |
| 时间 | 实测水位/m | 模拟水位/m | 误差/m |
|---|---|---|---|
| 0∶00∶00 | 4.25 | 4.15 | -0.10 |
| 1∶00∶00 | 4.30 | 4.18 | -0.12 |
| 2∶00∶00 | 4.38 | 4.28 | -0.10 |
| 3∶00∶00 | 4.50 | 4.40 | -0.10 |
| 4∶00∶00 | 4.46 | 4.56 | 0.10 |
| 5∶00∶00 | 4.40 | 4.50 | 0.10 |
| 6∶00∶00 | 4.41 | 4.51 | 0.10 |
| 7∶00∶00 | 4.38 | 4.48 | 0.10 |
| 8∶00∶00 | 4.40 | 4.45 | 0.05 |
| 9∶00∶00 | 4.38 | 4.40 | 0.02 |
| 10∶00∶00 | 4.39 | 4.35 | -0.04 |
| 11∶00∶00 | 4.45 | 4.50 | 0.05 |
| 12∶00∶00 | 4.50 | 4.50 | 0 |
| 13∶00∶00 | 4.48 | 4.45 | -0.03 |
| 14∶00∶00 | 4.45 | 4.41 | -0.04 |
| 15∶00∶00 | 4.41 | 4.38 | -0.03 |
| 16∶00∶00 | 4.38 | 4.30 | -0.08 |
| 17∶00∶00 | 4.30 | 4.25 | -0.05 |
| 18∶00∶00 | 4.25 | 4.30 | 0.05 |
| 19∶00∶00 | 4.30 | 4.35 | 0.05 |
| 20∶00∶00 | 4.35 | 4.37 | 0.02 |
| 21∶00∶00 | 4.37 | 4.40 | 0.03 |
| 22∶00∶00 | 4.40 | 4.42 | 0.02 |
| 23∶00∶00 | 4.42 | 4.40 | -0.02 |
Fig.7 Process diagram of water level rise in water diversion channel relying on Wenshanli Pumping Station图7 依靠文山里泵站引水河道水位上涨过程图 |
Tab.4 Different dispatching schemes under the scenario of maintaining 4.2 m in Jinan River-Guangming Port basin表4 晋安河-光明港流域维持4.2 m情景下不同调度方案 |
| 方案序号 | 上游流量/（m3·s-1） | 下游调控方式 |
|---|---|---|
| 方案一 | 25.0 | 调控方式一 |
| 方案二 | 25.0 | 调控方式二 |
| 方案三 | 25.0 | 调控方式三 |
| 方案四 | 17.5 | 调控方式一 |
| 方案五 | 17.5 | 调控方式二 |
| 方案六 | 17.5 | 调控方式三 |
| 方案七 | 10.0 | 调控方式一 |
| 方案八 | 10.0 | 调控方式二 |
| 方案九 | 10.0 | 调控方式三 |
Tab.5 Comparison of the results of different dispatching schemes under the scenario of maintaining 4.2 m in Jinan River-Guangming Port basin表5 晋安河-光明港流域维持4.2 m情景下不同调度方案结果对比 |
| 目标函数 | 能否达到调控目标 | 泵站开启时间/min | 闸门开启次数/次 | 重点断面未达到景观水位平均时长/min |
|---|---|---|---|---|
| 方案一 | 能 | 魁岐排涝二站开启540 | 48 | 520 |
| 方案二 | 能 | 魁岐排涝二站开启540 | 50 | 544 |
| 方案三 | 能 | 魁岐排涝二站开启180 | 48 | 544 |
| 方案四 | 能 | 魁岐排涝二站开启420 | 48 | 546 |
| 方案五 | 能 | 魁岐排涝二站开启60 | 48 | 548 |
| 方案六 | 不能 | |||
| 方案七 | 能 | 魁岐排涝二站开启150 | 48 | 559 |
| 方案八 | 不能 | |||
| 方案九 | 不能 |
Fig.11 Three schemes of BOD concentration change curve at the intersection of Jin'an River and Guangming Port图11 3种方案晋安河与光明港交汇处BOD浓度变化曲线图（2018年） |
Tab.6 Comparison of the results of different dispatching schemes under the scenario of maintaining 4.2 m in Jinan River-Guangming Port basin表6 晋安河-光明港流域维持4.2 m情景下不同调度方案结果对比 |
| 目标函数 | 上游流量/（m3·s-1） | 从Ⅳ类水变为Ⅲ类水的时间/min |
|---|---|---|
| 方案三 | 25.0 | 1 584 |
| 方案五 | 17.5 | 2 184 |
| 方案七 | 10.0 | 2 328 |
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Fig.1 Main river channels and hydraulic facilities in the Jinan River-Guangming Port basin
Tab.1 Gate parameter tableTab.2 Drainage pump station parameter tableFig.2 Generalized map of river network in Jinan River-Guangming Port Basin of FuzhouFig.3 Tidal map of Minjiang RiverFig.4 Schematic diagram of one-dimensional hydrodynamic modelFig.5 The calibration results of the Jin'an River water level process under the typical tide level process lineTab.3 Model calibration resultsFig.6 Eight groups of key reservoir lakes and sections in Fuzhou urban areaFig.7 Process diagram of water level rise in water diversion channel relying on Wenshanli Pumping StationFig.8 Relying on the rising process chart of the water level of the Minjiang River tide levelTab.4 Different dispatching schemes under the scenario of maintaining 4.2 m in Jinan River-Guangming Port basinFig.9 Various data curve diagrams of Kuiqi sluice in various schemesTab.5 Comparison of the results of different dispatching schemes under the scenario of maintaining 4.2 m in Jinan River-Guangming Port basinFig.10 Changes in BOD concentration at the junction of Jin'an River and Guangming PortFig.11 Three schemes of BOD concentration change curve at the intersection of Jin'an River and Guangming PortTab.6 Comparison of the results of different dispatching schemes under the scenario of maintaining 4.2 m in Jinan River-Guangming Port basin
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