Research On Inner Dump Stability Of Baorixile Open Pit Mine

The dump basal of Baorixile open pit coal mine is cementation with dark mudstone, sandstone layer and sandstone layer on coal floor. Its tendency is roughly same with the inner advancing direction strie--south. The inner basement and lithologic is adverse to the inner basal stability. Furthermore, because of the coal confined water, basal mudstone is softening, formation and evolution into weak layer, reduce exhaust outcast shear strength, this makes the stability worse.As the peel ground-broken, inner work begins, the stability of Dump will continue making threat to the safty of drainage system and inner safety engineering even the safe production in mines. So it has the important practical significance and high economic efficiency in research of inner basal stability management.The paper according to the actual situation of dump landslide, using independent development software, do the numerical of dump landslide to make sure the intensity index of base evolution weak layer. At the same time, use FLAC3D to do numerical simulation of the dump landslide, further reveal the inner dump landslide's landslide mechanism and mode. Make the scientific evaluation of its stability, within the proposed measures and comprehensive management dump, make sure the safty of drainage system and inner safety engineering also the safe production in mines.