Characteristics of Strata Behavior of Shot Firing and Roof - coal with Large Inclined Angle
Abstract：By strata control observation and numerical simulation in the first shot firing and roof - coal working face with large inclined angle in Lugou coal mine of Zhengzhou coal industry Co. , Ltd. , it has been obtained that the supports resistance distributed in resist- ance - diminishing status during the mining process in shot firing and roof - coal working face with large inclined angle, the supporting pressure along the incline showed ＂saddle shape＂, and the peak of the supporting pressure of head entry is higher than air tail entry＇s. Therefore it＇s difficult for roadway to maintain.
Keywords：large inclined angleshot firing and roof - coalabutment pressurenumerical simulationcharacteristics of strata behavior
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 23-26 )