Improvement of Process of Mechanized Plate Up-approach Filling Method in Zhazixi Mine
Zhazixi Mine is an underground mining mine,which adopts multi-section inclined shaft joint development.The mining methods mainly include shallow hole retaining method and wall cutting filling method,and the mechanized plate up-approach filling method of deep broken thick ore body is being test-ed.At the initial stage of the mine test,there are some problems such as low mining efficiency,poor filling and roof joint effect,complicated support technology and high cost.To solve these problems,the mining effi-ciency is improved by improving the hole layout and drilling mechanism.Optimize the filling facilities engi-neering improves the filling topping rate.Resin fiber mesh and single hydraulic prop are introduced for sup-port,and industrial tests are carried out,and good results are obtained.