Abstract
For the caving danger of the haulage roadway with thin and broken coal roof in Baoxin coal mine, the combined support technology with bolt, steel mesh and anchor was proposed. According to the geological conditions of the mine, the appropriate support program was determined. The simulation analysis by FLAC3D software showed that the program could effectively increase the roadway confining pressure, reduce roadway displacement and deformation, and thus keep the stability of the surrounding rock. Site practice showed that the support program was feasible and the control effect was good.
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