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| APPLICATION AND DOUBLE-DIRECTION CONTROL BOLT SUPPORT TECHNOLOGY OF LARGE SPAN Y-TYPE INTERSECTION IN DEEP COAL MINE | |||
| GUO Zhibiao1，2，WANG Jiong1，2，CAI Feng1，2，WANG Fuqiang1，2 | |||
| (1. State Key Laboratory of Deep Geomechanics and Underground Engineering，China University of Mining and Technology，Beijing 100083，China；2. Institute of Geotechnical Engineering，China University of Mining and Technology，Beijing 100083，China) | |||
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