Study on Gob-side Entry Retaining Technology with Roadway Anchor Net Waste Bag Wall

摘要

Due to the problems of large waste massive residual space, and lower axial load and lateral pressure capacity existed in the gob-side entry retaining technology with waste bag wall, the surrounding rock of the gob-side entry retaining results in great deformation. Combined with the geological conditions of Wang-Lou coal mine field, this paper puts forward the gob-side entry retaining technology with roadway the anchor net waste rock bag wall, which makes use of the waste rock bag, anchor bolt net, protective steel belt and anchor cable and other supporting to be a whole, laying anchor bolt net on the lateral wall, and two-way fastening the wall with protective steel belt and anchor cable joint action, so the wall can be with uniform compression and strong compactness, which improves the waste bag wall's compression capability and overall support performance. Along with successful application of the gob-side entry retaining technology with roadway anchor net waste bag wall in Wang-lou coal mine, it provides a new technical way for gob-side entry retaining.