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Study on flow and sediment dynamics and deposition characteristics of hollow block
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Zhongquan Hou1, 2, Jin Shi3, Xianye Wang1, Leicheng Guo1, Weiming Xie1, Fan Xu1, Mingyi Huang4, Qing He1, *
Haiyang Xuebao | 2022, 44(5) : 124 - 133
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Haiyang Xuebao | 2022, 44(5): 124-133
• Article •
Study on flow and sediment dynamics and deposition characteristics of hollow block
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Zhongquan Hou1, 2, Jin Shi3, Xianye Wang1, Leicheng Guo1, Weiming Xie1, Fan Xu1, Mingyi Huang4, Qing He1, *
Affiliations
  • 1. State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200241, China
  • 2. Shanghai Waterway Engineering Design and Consulting Co., Ltd, Shanghai 200120, China
  • 3. Yangtze Estuary Waterway Administration Bureau, Ministry of Transport, Shanghai 200003, China
  • 4. CCCC Third Harbor Consultants Co., Ltd., Shanghai 200032, China
Published: 2022-05-01 doi: 10.12284/hyxb2022101
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Hollow blocks have good water blocking and siltation promotion functions, and have been widely used in ecological restoration projects in recent years. In this paper, combined with flume experiment and Flow-3D numerical simulation, the water blocking effect and sedimentation characteristics of open and semi-closed hollow blocks are analyzed. The results show that the permeability of the hollow block plays a leading role in the internal flow velocity and turbulence intensity, and the semi-open hollow block with small permeability has a better effect in slowing down and turbulence control. The suspended sediment concentration near the bottom of open and semi-closed hollow blocks increases by 56% and 75%, respectively. Both of them can promote the deposition of sediment in the block. The environment of low flow velocity, sediment micro-deposition and water and sediment connected inside and outside by hollow blocks is the habitat requirement of macrobenthos, the structure of low turbulent flow inside the semi-enclosed hollow block is more favorable for the habitat and reproduction of macrobenthos.

hollow block  /  flume experiment  /  Flow-3D  /  flow and sediment dynamic  /  deposition
Zhongquan Hou, Jin Shi, Xianye Wang, Leicheng Guo, Weiming Xie, Fan Xu, Mingyi Huang, Qing He. Study on flow and sediment dynamics and deposition characteristics of hollow block[J]. Haiyang Xuebao, 2022 , 44 (5) : 124 -133 . DOI: 10.12284/hyxb2022101
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Article Info
doi: 10.12284/hyxb2022101
  • Receive Date：2020-12-15
  • Online Date：2026-02-01
  • Published：2022-05-01
Article Data
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History
  • Received：2020-12-15
  • Revised：2021-10-09
Funding
Affiliations
    1. State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200241, China
    2. Shanghai Waterway Engineering Design and Consulting Co., Ltd, Shanghai 200120, China
    3. Yangtze Estuary Waterway Administration Bureau, Ministry of Transport, Shanghai 200003, China
    4. CCCC Third Harbor Consultants Co., Ltd., Shanghai 200032, China
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https://castjournals.cast.org.cn/joweb/hyxb/EN/10.12284/hyxb2022101
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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