(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)
Abstract：Under geological conditions at deep coal mine，the crossing roadway especially Y-type experienced large deformation. The junction pillar could be the weakest link. Based on in-situ investigation and theoretical study，typical forms of the destruction were summarized. High stress and unrestrained deformation at two sides of junction pillar were two main factors affecting the stability of the cross-section. Deep Y-type large cross-section junction double-control anchor support technology was proposed. The technology has been used in deep intersection engineering in Jiahe coal mine.
郭志飚,王炯,蔡峰,王福强，. 煤矿深部Y型大断面交岔点双控锚杆 支护技术及工程应用[J]. 岩石力学与工程学报, 2010, 29(S1): 2792-2798.
GUO Zhibiao1，2，WANG Jiong1，2，CAI Feng1，2，WANG Fuqiang1，2 . APPLICATION AND DOUBLE-DIRECTION CONTROL BOLT SUPPORT TECHNOLOGY OF LARGE SPAN Y-TYPE INTERSECTION IN DEEP COAL MINE. , 2010, 29(S1): 2792-2798.
