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《Journal of University of Science and Technology Beijing》 2007-09
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Thermal fracture failure characteristic of rock

XIE Weihong1),GAO Feng2),LI Shuncai3)1)Department of Airport Engineering,Xuzhou Airforce Logistic Institute,Xuzhou 221000,China 2)Science and Technology College,China University of Mining & Technology,Xuzhou 221008,China 3)College of Mechanical Engineering and Electronic Engineering,Xuzhou Normal University,Xuzhou 221000,China  
Rock's heat inflation is an irreversible process,and it is influenced by heating history.There is a great characteristic difference during heating and after cooling.Real-time tests on the thermal fracture failure process of rock under uniaxial compressive and tension loading were carried out,the macro-mechanical properties of rock during thermal fracture failure were analyzed,and the thermal failure mechanism was discussed.According to the thermal fracture mechanism and its strength criterion,the maximum stress of samples was computed,and the results were in good agreement with the experimental.
【Fund】: 国家重点基础研究发展规划“973”计划资助项目(No.2002CB412705);; 创新群体项目(No.50221402);; 江苏省自然科学基金资助项目(No.BK2007029)
【CateGory Index】: TU45
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