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TESTING STUDY ON FRACTAL CORRELATION LAW OF CRACKS
IN MINED ROCK MASSES |
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Abstract By using simulant testing of similar material，the forming process and the distribution status of the cracks in mined rock masses are simulated. The fractal correlation of cracks in caving zone，fractured zone and bend zone in goaf is studied. The testing results indicate that the fractal dimension of the cracks in mined rock masses is enlarged with increment of mining width，and the expansion factor of rock masses and subsidence coefficient of overlying strata become big with increment of fractal dimension of the cracks in mined rock masses.
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Received: 02 June 2003
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LI Botao1, 2, 3, TAN Yuxuan1, LIN Haifei4, 5*, WEI Jianping1, 2, 3, ZHANG Hongtu1, 2, 3, LI Shugang4, 5, WEI Zongyong4, 5, WANG Pei4, LUO Rongwei4, LIU Yanwei1, 2, 3. Mechanical properties and mesoscopic damage evolution of coal under liquid-nitrogen freezing at different initial temperatures[J]. , 2026, 45(6): 1757-1772. |
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