[1]LIU Peixuan,LI Xiaojun,LIU Yanqiong.Critical Conditions for Earthquake Occurrence in a Single Fractured Continuous Medium[J].Journal of Seismological Research,2020,43(01):37-44.
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Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
43
Number of periods:
2020 01
Page number:
37-44
Column:
Public date:
2020-01-30
- Title:
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Critical Conditions for Earthquake Occurrence in a Single Fractured Continuous Medium
- Author(s):
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LIU Peixuan1; 2; LI Xiaojun1; LIU Yanqiong3
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(1.College of Architectural and Civil Engineering,Beijing University of technology,Beijing 100124,China)(2.Development Research Center of China Earthquake Administration,Beijing 100036,China)(3.China earthquake Networks Center,Beijing 100045,China)
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- Keywords:
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earthquake process; critical condition of instability; surface free energy; energy release rate
- CLC:
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P315.91
- DOI:
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- Abstract:
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Based on the principle of energy balance,the earthquake triggering process is transformed into the local instability problem of the system in mathematics and mechanics,and the critical condition of crack instability in the analysis domain is given by theoretical derivation.Based on the theory of linear fracture mechanics,the surface free energy of some historical earthquake-induced faults is given.Based on the principle of potential energy and the observation data of GPS network,a calculation method for determining the release rate of fracture energy is proposed.Furthermore,a method for determining the probability of earthquake occurrence of fracture based on the energy release rate of fracture and the surface free energy is developed.