Support Optimization of Roadway Driving along Next Gob of Fully Mechanized Face in Thick Seam under Dynamic Pressure
LIN Zengyuan
ZHAO Guangxu
MENG Fanzhen
Abstract：To solve the difficult maintenance Problem of the roadway driving along the next gob of the fully mechanized face in the thick seam under dynamic Pressure,a mechanical model of the force-bearing characteristics of the narrow coal Pillar was established by taking 1902N air-return way in a mine in Inner Mongolia as the research background and based on the analysis of the failure mechanism of the roadway surrounding rock,and it came to the conclusion that the main factors affecting the stability of the roadway were the force-bearing caPacity of the solid coal wall and the stability of the narrow coal Pillar,and an interlink existed between the two factors. On this basis,the oPtimization of suPPort mode and Parameter was carried out for the roadway driving along the next gob.
Keywords：dynamic Pressurenarrow coal Pillarroadway driving along next gobsuPPort oPtimization
Publication Date：2014-01-01
Pages：4( 60-63 )