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Analysis of Foundation Stress Behavior and Remedial Scheme of Concrete Asphalt Core Wall Dam
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Jia XU1, Xi-can CUI2, Xing-xing ZHANG3a, 3b, Ling-kai ZHANG2, Da-yong WANG4
Water Resources and Power | 2023, 41(6) : 87 - 90
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Water Resources and Power | 2023, 41(6): 87-90
• DAM SAFETY AND MONITORING •
Analysis of Foundation Stress Behavior and Remedial Scheme of Concrete Asphalt Core Wall Dam
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Jia XU1, Xi-can CUI2, Xing-xing ZHANG3a, 3b, Ling-kai ZHANG2, Da-yong WANG4
Affiliations
  • 1.Xinjiang Water Resources and Ecological Water Conservancy Research Center (Academician Expert Workstation), Urumqi, 830000 China
  • 2.College of Hydraulic and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, China
  • 3a.State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100048, China
  • 3b.Key Laboratory on Construction and Security of Water Projects of Ministry of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 100048, China
  • 4.Heilongjiang Sanjiang Construction Management Co., Ltd., Harbin 150036, China
Published: 2023-06-25 doi: 10.20040/j.cnki.1000-7709.2023.20222048
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Based on the finite element method, this paper numerically analyzes the stress behavior and its adverse effects when diaphragm of dam foundation axis shifts downstream during operation, and proposes remedial measures and reference critical values. The results show that when the axis does not shift, diaphragm of dam foundation is only subjected to bending moment and produces local tensile stress, but its influence is not obvious. When the axis is shifted downstream and the offset is less than 30 cm, diaphragm of dam foundation is subjected to the combined action of pressure and bending moment, resulting in stress concentration and adverse effects. In the case of no other processing, when the axis does not shift and the offset is less than 15 cm, it can be temporarily not processed; If the axis offset to the downstream is more than 15 cm and not more than 27 cm (measured maximum offset), in the subsequent construction, the concrete base needs to be widened downstream at least 20 cm, which can reduce the tensile stress extreme of diaphragm of dam foundation and weaken the stress concentration, so as to improve the stress behavior of diaphragm of dam foundation. The finite element simulation provides a reference for the safety evaluation and treatment measures when diaphragm of dam foundation is eccentric.

concrete asphalt core wall dam  /  diaphragm of dam foundation  /  stress behavior  /  finite element simulation
Jia XU, Xi-can CUI, Xing-xing ZHANG, Ling-kai ZHANG, Da-yong WANG. Analysis of Foundation Stress Behavior and Remedial Scheme of Concrete Asphalt Core Wall Dam[J]. Water Resources and Power, 2023 , 41 (6) : 87 -90 . DOI: 10.20040/j.cnki.1000-7709.2023.20222048
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20222048
  • Receive Date：2022-10-01
  • Online Date：2026-01-28
  • Published：2023-06-25
Article Data
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History
  • Received：2022-10-01
  • Revised：2022-12-29
Funding
Affiliations
    1.Xinjiang Water Resources and Ecological Water Conservancy Research Center (Academician Expert Workstation), Urumqi, 830000 China
    2.College of Hydraulic and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, China
    3a.State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100048, China
    3b.Key Laboratory on Construction and Security of Water Projects of Ministry of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 100048, China
    4.Heilongjiang Sanjiang Construction Management Co., Ltd., Harbin 150036, China
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Citations
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
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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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