Study on Support Technology of Mine Roadway in Semi Coal and Rock of Cretaceous Soft Rock Stratum
ZHANG Shao-qi
LIN Deng-ge
CAO Shuai
ZHANG Sheng-li
Abstract：No.2 Seam Air Returning Roadway was a typical mine roadway with a weak cemented soft surrounding rock in Cha’gan Nao’er No .1 Mine .Partical section of the mine roadway was a mine semi coal and rock roadway and the roof was full rock .“A primary bolt /steel mesh/anchor/shotcrete and secondary bolt /grouting + floor reinforcement”support plan applied could effectively control the defor-mation failure of the mine roadway ,could obtain a good effect and could provide the experiences to the support design and construction of the mine roadway in the similar strata.
Keywords：weak cemented soft rockmine semi coal and rock roadwaynumerical simulationsupport
Publication Date：2015-02-15
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 40-43 )