Mechanical characteristics and stability control of rock roadway surrounding rock in deep mine

Abstract

Based on analyzing stress evolving characteristics,deformation and failure laws of rock roadway surrounding rock in deep mine,stability control mechanism of deep mine rock roadway was demonstrated.The supporting technology of the roadway in deep mine,the coupled supporting of bolt-mesh-anchor and integral surrounding rock reinforcing,was put forward and put into practice accordingly.Based on high strength and high prestress bolting,applying high prestress anchor cable supporting at key positions and grouting to reinforce surrounding rock,adopting effective supporting measures of the floor,and optimizing parameters according to feedback information during driving,it can keep roadway surrounding rock of deep mine stability.The practice proves that the supporting technology is reasonable and better to controlling surrounding rock movement.