Tao'er new south first mining area wind tunnel ranged No. 2 coal floor about 7 ~ 15 m, with complex geological conditions, high stress, deep soft rock roadway surrounding rock strength was greater than the load, causing the plastic zone roadway and broken zone increases, supporting stress and rock deformation increased dramatically, through the surrounding rock deformation and failure analysis, feasible supporting theory was put forward. The length of the annular support and grouting support technology characteristics and adopting cable Anchor + long ring bracket (U steel) + full face grouting reinforcement coupled secondary support form technology, supporting structure and surrounding coupled into one improved the skeleton rock bearing capacity, changed from passive support to active support to achieve roadway deformation control purpose.
商香超. 高地应力区域长环形支架耦合加固技术研究[J]. 煤炭与化工, 2013, 36(5): 71-73.
SHANG Xiang-chao. Research and Application of Long Support Ring Coupling Reinforcement Technology in High Ground Stress. CCI, 2013, 36(5): 71-73.