Technology and practices in alluvial mud burst disaster relief and control in Donghuantuo coal mine

Taking the disaster happening in-230 level wind tunnel in Donghuantuo coal mine as example,disaster relief and control are discussed on the fault inducing alluvial mud burst disaster.The following measurements are included:water drainage;water control;three subsection treatment of the mud burst passage,fault,including upper section grouting capping,mid section filling and lower section grouting strengthening;and the control effects.