Gob-side entry retaining method for anchor bolt network gangue bag wall body for coal mining without pillars
A technology of retaining an empty roadway without coal pillars, which is applied in the direction of mining equipment, earthwork drilling, installation of anchor rods, etc., and can solve the problem that the cost of roadside support materials cannot be realized.
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[0024] The present invention provides a gob-side entry retaining method for anchor bolt mesh gangue bag wall used in the mining mode without coal pillars. In order to make the purpose, technical solution and advantages of the present invention clearer and clearer, the following will be combined with the accompanying drawings and embodiments , to further describe the present invention in detail.
[0025] The invention crushes the solid waste obtained by excavation gangue or coal gangue separation to a certain particle size, uses ordinary or special plastic woven bags to carry out standard gangue bagging, and then sends the gangue bag filling body to the working face for construction and storage through the underground transportation system. The location of the roadway, with the advancement of the working face under the condition of closed support of the single hinged roof beam, adopts the technology of retaining the roadway along the gob with the anchor bolt mesh gangue bag wall...
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