Mechanized Concrete Feeding,Mixing and Conveying for Long Distance Mine Roadway Lining

JIA Shi-lin

doi:10.3969/j.issn.1002-6029.2014.02.009

Abstract：A mechanized lining operation line was applied to the construction of +400m Level Railway Roadway in South Mine Ventilation Shaft of Yuwu Mine and each 9m concrete lining was a circle.A ZCY100R mode crawler-type shovel was applied to the concrete feeding and a JZM 500 mode mixer was applied to the mixing of the concrete.One HBMD12/4-22S mode conveying pump and conveying pipe-line was applied to convey the concrete in a PKLD-9000 mode lining wagon for the concrete pou-ring.T hus the concrete pouring speed and quality could be improved ,the labor intensity could be re-duced and the safety risk could be reduced.When the mechanized lining operation line applied to the construction ,a single level month advancing rate of the mine roadway was steadily improved from a-bout 60m to over 100m ,a max month advancing rate was reached at 120m and the total construction period of the mine roadway was completed three months ahead of the schedule .The technology could be suitable for the concrete lining operation of a mine long distance level roadway and mine inclined roadway or less fluctuated inclined mine roadway with a required heading width over 4m and no limit maximum net cross section.The advantages of the mechanized matching high efficient construction would be fully played with the longer roadway and wider cross section.