Research on Stability Control Technology of Mining Roadway Based on Energy Transformation

The process of roadway surrounding rock deformation and instability is always accompanied by energy changes, the transformation directly drives its failure. In order to realize stability control mining roadway, distribution elastic strain plastic was analyzed using FLAC3D numerical simulation software on basis law sandstone under different confining pressures revealed indoor triaxial compression test. Based this, combined with transformation, principle technology proposed. One reduce rock, that is, increasing extension support body, part transferred so as improve release or optimizing layout accumulation rock. second increase dissipation setting weak structure. above research results are applied right transport in 91st coal Xinjian mine. After optimization measures, surface displacement rate decreased significantly, roof subsidence from 247 mm 62 mm, floor heave 120 26 rib shrinkage 292 94 effect particularly obvious. gradually stabilized after 45 days.