Study on Extraction Radius of Drilling Extraction Along Strata in Magmatic Rock Erosion Area of Linhuan Coal Mine
In order to determine the effective influence radius of bedding drilling,this paper takes different erosion zones of 10 coal seams on the magmatic rock bed of coal mine 10116 working face as the research object,and carries out the research on the effective influence radius of stratified drilling and extraction in magmatic rock erosion and its affected areas The results show that the effective influence radius of gas drainage in different erosion areas of magmatic rock increases correspondingly with the extension of extraction time;when the extraction time is the same,the effective influence radius of the erosion-af-fected area is the same as that of the partial erosion area;when the extraction time is the same,the largest effective radius of gas drainage is the partially eroded area and the affected area of magmatic rock,followed by the non-eroded area,and then the severely eroded area.The research results help to improve the efficiency of gas drainage,and provide technical support and guarantee for safe and efficient mining of coal seams in mines under the condition of magmatic rock erosion.
Linhuan coal minemagmatic rock intrusiongas drainageeffective influence radius
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万方数据
维普
