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Calculation and Analysis of Anti-seepage Effect of Horizontal Earth-rock Cofferdam in Yanzhou Junction Phase I
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Yingjian XIONG1, Shengxiong LU1, Jiaxing YANG2, Yongzhou CHENG2
Science Technology and Industry | 2025, 25(9) : 48 - 55
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Science Technology and Industry | 2025, 25(9): 48-55
• Technology Innovation •
Calculation and Analysis of Anti-seepage Effect of Horizontal Earth-rock Cofferdam in Yanzhou Junction Phase I
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Yingjian XIONG1, Shengxiong LU1, Jiaxing YANG2, Yongzhou CHENG2
Affiliations
  • 1 The Third Engineering Co., Ltd. of China Second Navigation Bureau, Zhenjiang 212000, Jiangsu, China
  • 2 School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha 410114, China
Published: 2025-05-10
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As a crucial hydraulic engineering structure, the impermeability of a rockfill dam directly affects the safety of the project, environmental protection, and economic benefits. Different protective measures are taken for cofferdams under different conditions, so a detailed analysis based on specific conditions is necessary. Focusing on the transverse soil and rock revetment upstream of Phase I of the Yanzhou hub, the large-scale finite element software GeoStudio was used to conduct an in-depth analysis of its various anti-seepage structural forms, aiming to evaluate the effectiveness and seepage control effects of each anti-seepage scheme.The research findings indicate that both the absence of anti-seepage measures and the sole use of geomembrane structures fail to meet the engineering requirements for seepage prevention. Although a single anti-seepage wall structure can meet the requirements, it is not the best choice due to its high construction difficulty and economic cost. In contrast, the anti-seepage solution combining high-pressure jet grouting with composite geomembrane can effectively fulfill the project’s seepage prevention needs, which provides practical guidance and suggestions for the design of earth-rock cofferdam.

earth-rock cofferdam  /  impermeable design  /  finite element  /  seepage analysis  /  yanzhou hub
Yingjian XIONG, Shengxiong LU, Jiaxing YANG, Yongzhou CHENG. Calculation and Analysis of Anti-seepage Effect of Horizontal Earth-rock Cofferdam in Yanzhou Junction Phase I[J]. Science Technology and Industry, 2025 , 25 (9) : 48 -55 .
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  • Receive Date：2024-10-15
  • Online Date：2025-07-18
  • Published：2025-05-10
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  • Received：2024-10-15
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Affiliations
    1 The Third Engineering Co., Ltd. of China Second Navigation Bureau, Zhenjiang 212000, Jiangsu, China
    2 School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha 410114, China
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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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