Citation: | (ZHANG Juan, WANG Keliang, XIA Hui, et al. Study on site selection and optimization of sediment-blocking sluice at the estuary section of the Main Irrigation Canal[J]. Hydro-Science and Engineering(in Chinese)). DOI: 10.12170/20240226001 |
The tidal barrier at the estuary is a critical hydraulic structure for maintaining irrigation and navigation functions in upstream river sections. However, sedimentation issues caused by marine sediment input are common in estuaries where barriers are constructed in China. Taking the Liuduo South Sluice, the final hub of the Northern Jiangsu Main Irrigation Canal, as an example, this study investigates the effects of changes in the sluice site and gate operation on the scouring and deposition processes in the diversion channel section using a two-dimensional water-sediment numerical model. Results show that a scouring-deposition boundary exists in the downstream section of the current Liuduo South Sluice, with the boundary gradually moving downstream. Severe sedimentation occurs upstream of this boundary (sedimentation thickness up to 3.12 m), while slight scouring is observed downstream (maximum scour depth of 0.06 m). The construction and proper operation of a sediment-blocking sluice downstream of the hub reduce net sediment transport toward the upstream, effectively mitigating sedimentation in the diversion channel. A general scouring trend is observed downstream of the sediment-blocking sluice (scour depth 0–0.05 m), while certain sedimentation occurs upstream (sedimentation height 0–0.5 m). As the location of the sediment-blocking sluice moves further downstream, scouring downstream intensifies, and sedimentation upstream weakens.
[1] |
王宏江. 泥质河口闸下冲淤特性及冲淤量的分析预报[J]. 海洋工程,2002,20(4):78-84. (WANG Hongjiang. Scour and silting characteristics downstream of tidal barriers in muddy estuaries and their analytical forecast[J]. The Ocean Engineering, 2002, 20(4): 78-84. (in Chinese) doi: 10.3969/j.issn.1005-9865.2002.04.013
WANG Hongjiang. Scour and silting characteristics downstream of tidal barriers in muddy estuaries and their analytical forecast[J]. The Ocean Engineering, 2002, 20(4): 78-84. (in Chinese) doi: 10.3969/j.issn.1005-9865.2002.04.013
|
[2] |
缴健, 窦希萍, 高祥宇, 等. 入海河口挡潮闸闸下淤积量分析[C]∥第十八届中国海洋(岸)工程学术讨论会论文集(下). 北京: 海洋出版社, 2017. (JIAO Jian, DOU Xiping, GAO Xiangyu, et al. Analysis of sediment accumulation under tidal sluices in estuary[C]∥Proceedings of the 18th China Ocean (Coastal) Engineering Symposium (Part 2). Beijing: China Ocean Press, 2017. (in Chinese)
JIAO Jian, DOU Xiping, GAO Xiangyu, et al. Analysis of sediment accumulation under tidal sluices in estuary[C]∥Proceedings of the 18th China Ocean (Coastal) Engineering Symposium (Part 2). Beijing: China Ocean Press, 2017. (in Chinese)
|
[3] |
杨庆钰, 李玉山, 蒋礼平. 海河流域泥质潮汐河口淤积问题及防淤减淤措施的初步探讨[J]. 海河水利,1984(1):17-31. (YANG Qingyu, LI Yushan, JIANG Liping. A preliminary study on silting problems and measures for preventing and reducing silting in the muddy tidal estuary of Haihe River Basin[J]. Haihe Water Resources, 1984(1): 17-31. (in Chinese)
YANG Qingyu, LI Yushan, JIANG Liping. A preliminary study on silting problems and measures for preventing and reducing silting in the muddy tidal estuary of Haihe River Basin[J]. Haihe Water Resources, 1984(1): 17-31. (in Chinese)
|
[4] |
李大鸣, 范玉, 陈海舟. 河口闸下水动力与泥沙清淤问题的研究[J]. 天津大学学报,2005,38(9):817-823. (LI Daming, FAN Yu, CHEN Haizhou. Hydrodynamic force and sediment disposal down floodgate near estuary[J]. Journal of Tianjin University (Science and Technology), 2005, 38(9): 817-823. (in Chinese) doi: 10.3969/j.issn.0493-2137.2005.09.013
LI Daming, FAN Yu, CHEN Haizhou. Hydrodynamic force and sediment disposal down floodgate near estuary[J]. Journal of Tianjin University (Science and Technology), 2005, 38(9): 817-823. (in Chinese) doi: 10.3969/j.issn.0493-2137.2005.09.013
|
[5] |
宋玮玮, 季婷婷. 海口闸上游冲刷及下游淤积[J]. 水利科技与经济,2013,19(11):66-69. (SONG Weiwei, JI Tingting. The upstream scour and the downstream siltation of estuarine gates[J]. Water Conservancy Science and Technology and Economy, 2013, 19(11): 66-69. (in Chinese) doi: 10.3969/j.issn.1006-7175.2013.11.025
SONG Weiwei, JI Tingting. The upstream scour and the downstream siltation of estuarine gates[J]. Water Conservancy Science and Technology and Economy, 2013, 19(11): 66-69. (in Chinese) doi: 10.3969/j.issn.1006-7175.2013.11.025
|
[6] |
张华庆, 李华国, 岳翠平. 海河口潮流泥沙运动数值模拟及清淤方案研究[J]. 水动力学研究与进展(A辑),2002,17(3):318-326. (ZHANG Huaqing, LI Huaguo, YUE Cuiping. A numerical model of current and sediment and its application in analysis of Estuary of Haihe River[J]. Journal of Hydrodynamics, 2002, 17(3): 318-326. (in Chinese)
ZHANG Huaqing, LI Huaguo, YUE Cuiping. A numerical model of current and sediment and its application in analysis of Estuary of Haihe River[J]. Journal of Hydrodynamics, 2002, 17(3): 318-326. (in Chinese)
|
[7] |
赵鸿钧, 王金铸, 李士叙. 海河流域部分泥质河口回淤特性及治理意见[J]. 海河水利,1987(4):15-22. (ZHAO Hongjun, WANG Jinzhu, LI Shixu. Characteristics and treatment suggestions of siltation in some muddy river mouths in the Haihe River Basin[J]. Haihe Water Resources, 1987(4): 15-22. (in Chinese)
ZHAO Hongjun, WANG Jinzhu, LI Shixu. Characteristics and treatment suggestions of siltation in some muddy river mouths in the Haihe River Basin[J]. Haihe Water Resources, 1987(4): 15-22. (in Chinese)
|
[8] |
DRONKERS J. Tidal asymmetry and estuarine morphology[J]. Netherlands Journal of Sea Research, 1986, 20(2/3): 117-131.
|
[9] |
张文渊. 苏北沿海挡潮闸下淤积的原因及其对策[J]. 泥沙研究,2000(1):73-76. (ZHANG Wenyuan. Siltation and its control in downstream tidal gates in north of Jiangsu Province[J]. Journal of Sediment Research, 2000(1): 73-76. (in Chinese) doi: 10.3321/j.issn:0468-155X.2000.01.012
ZHANG Wenyuan. Siltation and its control in downstream tidal gates in north of Jiangsu Province[J]. Journal of Sediment Research, 2000(1): 73-76. (in Chinese) doi: 10.3321/j.issn:0468-155X.2000.01.012
|
[10] |
王予匀, 顾青. 六垛南闸下游引河减淤措施探讨与研究[J]. 水利建设与管理,2021,41(3):9-14. (WANG Yuyun, GU Qing. Discussion and research on the measures of sediment reduction in the lower reaches of Liuduo South Sluice[J]. Water Conservancy Construction and Management, 2021, 41(3): 9-14. (in Chinese)
WANG Yuyun, GU Qing. Discussion and research on the measures of sediment reduction in the lower reaches of Liuduo South Sluice[J]. Water Conservancy Construction and Management, 2021, 41(3): 9-14. (in Chinese)
|
[11] |
丛新, 朱文谨, 巩妮娜, 等. 近海挡潮闸闸下淤积问题及处理研究综述[J]. 盐城工学院学报(自然科学版),2018,31(1):6-10. (CONG Xin, ZHU Wenjin, GONG Nina, et al. Research review on the problem and treatment of the siltation under the tidal gate in coastal waters[J]. Journal of Yancheng Institute of Technology (Natural Science Edition), 2018, 31(1): 6-10. (in Chinese)
CONG Xin, ZHU Wenjin, GONG Nina, et al. Research review on the problem and treatment of the siltation under the tidal gate in coastal waters[J]. Journal of Yancheng Institute of Technology (Natural Science Edition), 2018, 31(1): 6-10. (in Chinese)
|
[12] |
金元欢, 沈焕庭. 我国建闸河口冲淤特性[J]. 泥沙研究,1991(4):59-68. (JIN Yuanhuan, SHEN Huanting. Scouring and silting characteristics of sluice estuary in China[J]. Journal of sediment research, 1991(4): 59-68. (in Chinese)
JIN Yuanhuan, SHEN Huanting. Scouring and silting characteristics of sluice estuary in China[J]. Journal of sediment research, 1991(4): 59-68. (in Chinese)
|
[13] |
陈犇, 丁磊, 丁跃, 等. 气动冲沙技术在新沂河海口枢纽挡潮闸的应用[J]. 江苏水利,2023(11):8-12. (CHEN Ben, DING Lei, DING Yue, et al. Application of pneumatic anti-silting technology in the tide gates of Xinyi River estuary hub[J]. Jiangsu Water Resources, 2023(11): 8-12. (in Chinese)
CHEN Ben, DING Lei, DING Yue, et al. Application of pneumatic anti-silting technology in the tide gates of Xinyi River estuary hub[J]. Jiangsu Water Resources, 2023(11): 8-12. (in Chinese)
|
[14] |
伍冬领, 林炳尧, 余大进, 等. 永宁江枢纽引航道和挡潮闸闸港冲淤研究[J]. 泥沙研究,2003(2):69-72. (WU Dongling, LIN Bingyao, YU Dajin, et al. Fluvial processes of access channel and downstream of tidal barrage in Yongning Estuary[J]. Journal of Sediment Research, 2003(2): 69-72. (in Chinese) doi: 10.3321/j.issn:0468-155X.2003.02.012
WU Dongling, LIN Bingyao, YU Dajin, et al. Fluvial processes of access channel and downstream of tidal barrage in Yongning Estuary[J]. Journal of Sediment Research, 2003(2): 69-72. (in Chinese) doi: 10.3321/j.issn:0468-155X.2003.02.012
|
[15] |
周云金, 袁聪, 王志力, 等. 新沂河入海泓道分流比变化与海口枢纽下游减淤措施初步研究[J]. 泥沙研究,2023,48(3):66-73, 80. (ZHOU Yunjin, YUAN Cong, WANG Zhili, et al. Preliminary study on the change of diversion ratio and siltation relieving measures in Xinyi River Estuary[J]. Journal of Sediment Research, 2023, 48(3): 66-73, 80. (in Chinese)
ZHOU Yunjin, YUAN Cong, WANG Zhili, et al. Preliminary study on the change of diversion ratio and siltation relieving measures in Xinyi River Estuary[J]. Journal of Sediment Research, 2023, 48(3): 66-73, 80. (in Chinese)
|
[16] |
肖怀前, 许永平, 严后军. 基于二维水沙数学模型分析挡潮闸闸下淤积特征: 以连云港沿海车轴河闸为例[J]. 山西农经, 2020(4): 99, 102. (XIAO Huaiqian, XU Yongping, YAN Houjun. Analysis of sedimentation characteristics in the downstream of tidal sluice based on a two-dimensional water-sediment numerical model: taking the Chezhou River sluice in Lianyungang as an example[J]. Shanxi Agricultural Economy, 2020(4): 99, 102. (in Chinese)
XIAO Huaiqian, XU Yongping, YAN Houjun. Analysis of sedimentation characteristics in the downstream of tidal sluice based on a two-dimensional water-sediment numerical model: taking the Chezhou River sluice in Lianyungang as an example[J]. Shanxi Agricultural Economy, 2020(4): 99, 102. (in Chinese)
|
[17] |
刘涛, 孙洪滨, 唐洪武, 等. 六垛南闸闸下淤积现状分析[J]. 水利水电科技进展,2008,28(1):54-57, 61. (LIU Tao, SUN Hongbin, TANG Hongwu, et al. Analysis of current situation of sediment deposition in downstream area of Southern Liuduo Gate[J]. Advances in Science and Technology of Water Resources, 2008, 28(1): 54-57, 61. (in Chinese)
LIU Tao, SUN Hongbin, TANG Hongwu, et al. Analysis of current situation of sediment deposition in downstream area of Southern Liuduo Gate[J]. Advances in Science and Technology of Water Resources, 2008, 28(1): 54-57, 61. (in Chinese)
|
[18] |
WANG Z. , GENG Y. , JIN S. An unstructured finite-volume algorithm for nonlinear two-dimensional shallow water equation[J]. Journal of Hydrodynamics (SerB), 2005, 17(3): 306-312.
|
[19] |
PARTHENIADES E. Erosion and deposition of cohesive soils[J]. Journal of the Hydraulics Division, 1965, 91(1): 105-139. doi: 10.1061/JYCEAJ.0001165
|
[20] |
TE CHOW V. Open-channel hydraulics[M]. New York: McGraw-Hill, 1959.
|