强矿压小煤柱分层掘进巷道高强联合支护技术

In the process of small pillar hierarchical excavation roadway construction,aiming at the 11051 air return groove of excavation roadway was effected by strong rock pressure behavior and mining,which leaded to severe deformation of roadway,support failure,and other problems.After analyzing the structure characteristics of surrounding rock for mine mining,strong rock pressure induced mechanism and the situation of 11051 roadway stress changes,filtered and processed the data collected from two sides of roadway by using loose circle theory,calculated the load of the roof and two sides of roadway,determined the support parameters,reinforcement and support scheme.It reduced effectively the impact of strong rock pressure behavior and mining to the safe construction of excavation roadway by using high-strength joint support technology.