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Stochastic dynamic analysis of high earth-rock dam under near-fault ground motion
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Sihan LI1, Rui PANG1, 2, Yang ZHOU1, 2, Bin XU1, 2
Journal of Vibration Engineering | 2025, 38(5) : 919 - 930
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Journal of Vibration Engineering | 2025, 38(5): 919-930
Stochastic dynamic analysis of high earth-rock dam under near-fault ground motion
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Sihan LI1, Rui PANG1, 2, Yang ZHOU1, 2, Bin XU1, 2
Affiliations
  • 1.School of Infrastructure Engineering，Dalian University of Technology，Dalian 116024，China
  • 2.State Key Laboratory of Coastal and Offshore Engineering，Dalian University of Technology，Dalian 116024，China
Published: 2025-05-10 doi: 10.16385/j.cnki.issn.1004-4523.2025.05.004
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The ground motion of pulse type near fault has the characteristics of higher frequency, faster speed and more concentrated energy than that of a distant site, which has serious harm to engineering structures. With abundant water resources, frequent and high-intensity earthquakes occur in Western China, and many high dams are located near fault zones. The permanent deformation and slope safety of high dams under near-fault ground motion are very important. A random pulse ground motion model is established based on the pulse ground motion records of the Jiji near fault in Taiwan Province. Finite element analysis is carried out on the Gushui 250 m grade engineering panel dam, and stochastic dynamic analysis and reliability analysis are carried out on the displacement and slope slip of the high earth-rock dam by the direct probability integral method. The results show that pulse ground motion significantly affects on the vertical deformation and slope stability of high earth-rock dams. The seismic safety and seismic capability of high earth-rock dams near faults with high seismic risk are evaluated comprehensively.

random vibration  /  near-fault pulse type ground motion  /  high earth-rock dam  /  DPIM  /  dynamic reliability analysis
Sihan LI, Rui PANG, Yang ZHOU, Bin XU. Stochastic dynamic analysis of high earth-rock dam under near-fault ground motion[J]. Journal of Vibration Engineering, 2025 , 38 (5) : 919 -930 . DOI: 10.16385/j.cnki.issn.1004-4523.2025.05.004
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Year 2025 volume 38 Issue 5
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doi: 10.16385/j.cnki.issn.1004-4523.2025.05.004
  • Receive Date：2023-07-15
  • Online Date：2026-02-12
  • Published：2025-05-10
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  • Received：2023-07-15
  • Revised：2023-09-07
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Affiliations
    1.School of Infrastructure Engineering，Dalian University of Technology，Dalian 116024，China
    2.State Key Laboratory of Coastal and Offshore Engineering，Dalian University of Technology，Dalian 116024，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
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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