DOI: 10.11799/ce201706014
Application of inner-outer composite bearing structure supportingtechnology in surrounding rock control of soft rock roadway
LIU Yong-zhong
Abstract：In order to control the intensive rheological phenomenon of roadway surrounding rock in Liuyuanzi Coal Mine and ensure the long-term stability,field test,numerical simulation,underground test and mine pressure observation method were used to analyze the characteristics and reasons of surrounding rock deformation and failure under original support,inner-outer composite bearing supporting technology was proposed and applied in soft rock roadway.Mine pressure monitoring results showed that after application of the applied technology,bolt stress were stable,displacement of surrounding rock was small,there was no obvious separation phenomenon,the surrounding rock stability was promoted.
Keywords：inner-outer composite bearing structuresoft rock roadwaysurrounding rock controlroadway supporting
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 47-49,52 )