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《Coal Technology》 2018-01
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Study on Mining Stress and Support Measure of Gob-side Entry Driving with Small Pillar

WU Le;GUO Xiang-ping;China Coal Research Institute;Coal Mining and Designing Department,Tiandi Science and Technology Co.,Ltd.;  
Based on the geomechanical parameters of Jinhui Wanfeng coal mine measured by hydraulic fracturing in-situ stress measurement techniques and in-situ rock strength measurement techniques with contact detection method in small holes,the finite difference numerical calculation software FLAC3 Dwas used to simulate the evolution law of mining-induced stress of 1201 gateway(roadway driving along goaf) with 7 m small coal pillar.And the position of neutral plane was studied.Therefore,the support measure was put forward,and the field test proved the support measure was effective and was worth promoting.
【Fund】: 国家自然科学基金煤炭联合基金重点项目(U1261211)
【CateGory Index】: TD353
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