Coal mine underground airbridge construction method
A construction method and wind bridge technology, applied in mine/tunnel ventilation, mining equipment, earthwork drilling and mining, etc., can solve problems such as low efficiency, large amount of engineering, long construction period, etc., and achieve high safety factor, low cost, The effect of short construction period
Active Publication Date: 2012-03-21
SHANXI JINCHENG ANTHRACITE COAL MINING GRP CO LTD
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The invention relates to a coal mining process, in particular to a coal mine underground airbridge construction method which solves the problems of low efficiency, large engineering quantity, long construction period and the like of the existing airbridge construction method. An air return roadway is tunneled directly along a roof of a coal bed by adopting a mechanical tunneling mode and is crossed with a horizontal roadway, and then is tunneled forward continuously to a horizontal plain so as to form a whole roadway system. An airbridge section is formed in the crossing position of the horizontal roadway and the air return roadway, and then the blasting, top brushing and building are conducted on the airbridge section so as to form an airbridge. Compared with the prior art, the coal mine underground airbridge construction method has the advantages that a semi coal rock roadway is tunneled directly to form the roadway, and then subjected to top brushing and building so as to form the airbridge. The construction is simple and easy, the workload is reduced, the cost is low, the construction period is short, and the safety coefficient is high. The work intensity of workers is reduced, the management of the roof is facilitated, the airbridge construction time is shortened, and the linkage arrangement of production groups is facilitated.
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