The Support for Repairing the Main Roadway in Mine under Complicated Conditions

KEYWORD: Complicated conditions; Repairing roadway; FLAC Simulation; Monitoring; Leaving in flexible cushion for combined yield supporting ABSTRACT: Based on Weijiadi mine No.2 cross-cut West water storage repairing engineering, through on-site investigation, theoretical analysis, FLAC numerical simulation, field tests and monitoring metheds to study The Supporting Technology for Repairing the Main Roadway in Mine under Complicated Conditions, the leaving in flexible cushion for combined yield supporting technology for repairing the main roadway in mine under Complicated Conditions is proposed. Field test and Monitoring showed that bolt-grouting and leaving in flexible cushion for combined yield supporting can give full play to the surrounding rock deformation, and improve the surrounding rock carrying capacity of the joint body, repairing roadway support project is reasonable to good effect.