Research on Roof Cutting and Pressure Relief Roadway Retaining Technology of Fully Mechanized Mining Face in a Deep Coal Seam
In order to solve the problem of gob-side entry retaining in deep mining face,taking the re-turn airway of a mine in Shanxi as the research object,the technical scheme of roof cutting and pressure re-lief roadway retaining is designed and applied in engineering.The theoretical calculation and numerical simu-lation method are used to determine the layout parameters of roof cutting and pressure relief boreholes,and the support parameters of the retained roadway section are determined in combination with the previous re-tained roadway and support experience.After the engineering application,the deformation control effect of the surrounding rock in the entry retaining section of the return airway of the working face is good,which can meet the mining needs of the adjacent working face.The research shows that the designed technical scheme of roof cutting and pressure relief roadway retaining is effective and meets the needs of roadway re-taining in deep mining face.
deep miningroof cutting and pressure reliefgob-side entry retainingsurrounding rock control
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维普
