Abstract:

The article is based on the technical conditions of 39107 caving face and particle composition analysis result in Pingshuo Coal Industry Company No.3 Coal Mine, determine the use of Malisan grouting reinforcement to wind oxidation zone; through comparative experimental results both traditional grouting technology and intermittent grouting technology, intermittent grouting technology may artificially control grouting seepage radius and apt to form network skeleton; and carry on advance pregrouting reinforcement to wind oxidation zone, by drilling peep france detecting and showing that reinforcement effect and penetration effect of intermittent grouting technology is better, saving grouting materials cost is 56%. So Intermittent Grouting has extensive Application prospects.