Support technology of high stress dynamic roadway with unconventional corss-section in deep mine

In our country the literature about excavation with unconventional cross-section in high press dynamic roadway is not much at present. This paper analyzed the hydrogeological condition and stress distribution around the roadway; The roadway 11103E with unconventional cross-section in Zhaizhen coal mine was supported with bolt-belt-mesh(roof mesh only) compound method the first time and reinforced with the same method when mining-in special area, strengthened with fluid-injection anchor rope refer to the numerical analysis; Finally the paper analyzed the observation result such as face displacement of surrounding rock, displacement deep in surrounding rock, anchoring force etc, which indicated a safe and effective support technology.