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《Journal of University of Science and Technology Beijing》 2007-03
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Controlling of rock burst in chain pillars between hydraulic mining face and drying mining face

YAO Jingming1), HE Fulian1), DOU Linming2), ZHANG Lei1), LIU Haitao1), LI Zhe1)1) Key Laboratory for High-Efficient Mining and Safety of Metal Mines of Chinese Ministry of Education, University of Science and Technology Beijing, Beijing 100083, China 2) Institute of Ming and Safety Engineering, China University of Mining and Technology, Xuzhou 221008, China  
Rock burst was easily happened at chain pillars between hydraulic mining face and drying mining face. According to the mechanism analysis of rock burst, the cracks in the loaded coal mass under the condition of high-energy unstable development would lead to rock burst happening, and would bring forward controlling principle of rock burst that impel crack in coal mass to develop stably and decease energy storied in unit coal mass by lengthening the unloaded area, for controlling of the rock burst at chain pillar between hydraulic mining face and drying mining face. Under this condition, the preventive measure was increasing the porosity of coal mass and deceasing the circulating channels of gas and air. Based on the principle, the preventive scheme was put forward by stage and combining water infusion with grouting. Project practice proved that the scheme was effective.
【Fund】: 国家自然科学基金资助项目(No.50074030);; 国家自然科学基金重大项目(No.50490270)
【CateGory Index】: TD324
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