Study on Support Parameters of Auxiliary Transportation Roadway of I0104303 Working Face in Shuangma No.1 Mine
Aiming at the damage situation of the surrounding rock of auxiliary transport road-way in the I0104303 working face of Shuangma No.1 Mine,through the numerical simulation software of FLAC3D,we analyzed the distribution of the ground stress in the working face,the vertical stress in the excavation,and the expansion pattern of the plastic zone;combined with the actual situation in the field,we designed three support schemes for the roadway;finally,we com-pared the pre-stress analysis of the different schemes and came up with the final one.The analy-sis on the field monitoring data shows that the support scheme can effectively control the deform-ation of the roof and the two gangs,improve tunneling efficiency,and provide ideas and compari-sons for the surrounding rock control of the auxiliary transportation roadways under the same ge-ological conditions.
numerical simulationfield monitoringsupport parametersbolt support
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