Research on support design and surrounding rocks control in deep thick coal seam mining roadway
SHANG Wenzheng
LIU Zhigang
YOU Wuchao
YUAN Jianbo
Abstract：To study the support design of deep thick coal seam roadway,we propose three support design schemes from the perspect-ive of safety and support cost based on the 432 belt transportation roadway in Tangyang Coal Mine.Theoretical analysis,numerical simulation and engineering practice were used to study the values of the support parameters,displacement and deformation,plastic zone and the actual support effect of each scheme.The theoretical analysis results show that the anchor parameters and row spacing of the three support schemes are in line with the theoretical calculation values.Numerical simulation results show that:the relative displacement and deformation of the top and bottom plates and the two sides of support scheme Ⅰ are 77.6 mm and 103.4 mm,re-spectively;the relative displacement and deformation of support scheme Ⅱ are 79.7 mm and 105.5 mm,which are similar to those of support scheme Ⅰ and have the least plastic failure elements;the maximum displacement and deformation of support scheme Ⅲ are 83.8 mm and 111.1 mm,respectively.The support cost of support scheme Ⅱ is only 64.7％of that of scheme Ⅰ when the support ef-fect is similar.The engineering practice results show that the actual support effect of support scheme Ⅱ can realize the safety support of roadway.
Keywords：roadway supportsurrounding rock controlnumerical simulationplastic zonedisplacement deformationsupport scheme
Publication Date：2024-09-20
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：10( 139-148 )