Evaluation and Analysis of Advanced Support for Fully Mechanized Top Coal Caving Working Face in Extra Thick Coal Seam
In response to the difficulty of advanced support in the roadway of the fully mechanized top coal caving face in the thick coal seam,taking the Z107 fully mechanized top coal caving face of Gucheng Coal Industry Co.,Ltd.as the engineering background,the working pressure of individual pillars within a 25 meter range of advanced support in this face was calculated and analyzed.Analysis shows that under this working condition,within a range of 10 meters ahead of the working face,one beam and three columns are used,and within a range of 15 meters ahead of the working face,a single support form of one beam and two columns is used to meet the safety production requirements on site.
extra thick coal seamfully mechanized caving working faceadvance support
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