Research on support control technology of 12306 coal roadway in Hongqingliang Mine
YAO Xinyu
MA Yaorong
LIANG Lei
SUN Yanning
SUN Peng
JING Laiwang
ZHAO Ming
Abstract：With the increasing depletion of shallow coal resources,deep mining has gradually become the mainstream trend of the coal industry.In the special environment of deep high stress and low bear-ing capacity of surrounding rock,the failure and instability are easy to occur in the process of coal roadway excavation,as well as the problems of rib spalling and roof fall after excavation.In this stud-y,the 12306 roadway in Hongqingliang Coal Mine was taken as the research object,and a combined support scheme of"bolt+anchor cable+steel strip"was designed and implemented.Through FLAC3D numerical software,the displacement change of the roadway under the combined support scheme is simulated and analyzed,and verified by the field test results.The simulation and field test results show that the deformation of the roadway tends to be stable within 27 to 30 days after the implemen-tation of the support,which proves the effectiveness of the combined support scheme of"bolt+anchor cable+steel belt"in controlling the stability of deep coal roadway.The research results provide an ef-fective technical way for the stability control of deep coal roadway,and have important reference value for coal mining under similar conditions.
Keywords：coal roadway excavationcombined supportFLAC3Ddeep coal roadway
Publication Date：2025-02-24
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)