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ABUTMENT PRESSURE DISTRIBUTION AND ITS TRANSFER LAW IN FLOOR OF DEEP ISOLATED FULLY-MECHANIZED MINING FACES USING SUBLEVEL CAVING |
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Abstract Based on the mining condition of No.4403 isolated fully-mechanized mining face with the sublevel caving in Dongtan Coalmine，the transfer of the abutment pressure in the floor is studied. The results provide a basis for controlling additional roadway deformation efficiently and ensure the regular production of the mine.
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Received: 20 June 2002
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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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