This paper deduced the formulae to calculate the parameters of shotcreting and bolting in three types of surrounding-rock-loosened ring individually from the theory of surrounding rock loosened ring.

• 以围岩松动圈理论为依据，分别对三类围岩松动圈的巷道围岩全长胶结锚杆的锚喷支护参数进行了公式推导及计算。