Practical research on the filling technology along the empty roadway and roadside of the fully mechanized mining face
WANG Bingfang
Abstract：In order to improve the overall stability of the surrounding rock along the empty roadway,taking the 2203 working face of the mine as the research object,aiming at the problem of poor stabili-ty of the surrounding rock in the environment under the influence of two mining,the roadside filling technology by using high-water filling materials is proposed,and the supporting width of the backfill body should not be less than 1.38 m through theoretical calculation.The water-cement ratio of the high-water backfill material is determined to be 1.0∶1.5,and on this basis,the technical process of supporting and reinforcing the roof and backfill body above the filling area by using a single hydraulic pillar and a tie bolt is proposed,which has achieved good practical application results,which can ef-fectively improve the stress environment of the surrounding rock,reduce the maintenance cost of the roadway,and realize the safe mining of the working face to a certain extent.
Keywords：stay along the empty laneroadside fillingsupport widthwater-cement ratiohigh water filling
Publication Date：2025-04-30
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 27-32 )