DOI: 10.11799/ce201606019
Supporting parameters design of roadway in close distance coal seams based on orthogonal test
ZHANG Wei-guang
YANG Chang-de
XIE Feng-zhen
WANG Peng
ZHAO Feng
Abstract：According to the mining roadway feature under the protection coal pillar of close-distance seams in the Sikeshu coalmine, numerical simulation based on orthogonal test is applied, to research the effect of bolt length, spacing to the deformation of roadway, the bolt length′s range is 110 and spacing's range is 33. The surrounding rock deformation of roadway with different anchor length is analyzed. The results show that, the roadway deformation increases with the increase of anchor length within the range of 4?5~5?5m, but otherwise when the anchor length is over 5?5m.
Keywords：close-distance seamsroadwaybolting supportorthogonal experimentnumerical simulation
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 61-64 )