Mechanism And Countermeasure For Floor Heave Of Rock Roadway

Take YangZhuang coal mines in Huaibei Mining Return Airflow Dip Passing in IV53 working area as engineering background, comprehensive use theoretical analysis, computer simulation and field tests and other means to influence dynamic pressure on rock floor heave mechanism and countermeasure of the rock roadway more detailed analysis, and designed a series of simply and economic rehabilitation program.The thesis thinks that roadway base corner is key points. The program of Return Airflow Dip Passing in IV53 working area particularly emphasized the strong catalytic influence about floor anchor control floor heave. The thesis suggested related mechanism is greatly different from existing references, some even opposite. The good results in field of industrial test confirmed the correctness of results. The results have directive significance in designed rock roadway and this program should be applied in similar conditions to promote.