Test Study on Roof Movement Regularity and Full Mechanized Mining of Coal Seams with Large Dip Angle in Dongbaowei Mine
YI Ticheng
ZHENG Shuquan
WANG Shexin
BI Keren
ZHOU Maigang
Abstract：In this paper, analysis was made on the technical problems in fully mechanized mining of coal seams with large dip angle (35o ~ 55o) in Dongbaowei Coal Mine, three-dimensional similar material simulation was carried out on the deformation and movement regularity of overburden strata of coal seams with large dip angle, FLAC numerical simulation was made on the stress distribution regularity of overburden strata and study was conducted on the support stability, all of these results provided basis for the surrounding rock control of coal seams with large dip angle. In addition, the type of fully mechanized mining equipment and the key technical measures for controlling the stability of the fully mechanized mining equipment were determined according to the site conditions. The industrial test results of fully mechanized mining of coal seams with large dip angle and the strata pressure monitoring results showed that its economic and technical effect is good and it has been widely spread and applied in coal mines in Heilongjiang Longmay Mining Holding Group Co. , Ltd.
Keywords：coal seams with large dip anglefully mechanized miningregularity of underground pressuresurrounding rock controlsupport stability
Publication Date：2013-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 50-53 )