By appling surround rock strength theory,stiffener theory,and observating weighe of 2 # seam bolt support in Ximing Coal mine,determines the rational position of roadway and bolt paramters.

• 通过运用围岩强度强化理论和“刚性梁”理论,对2%23煤层的锚杆支护进行矿压观测,合理确定出巷道位置和锚杆参数