Numerical Simulation of Deep Tunnel Support Scheme
In order to study the roadway support scheme for deep mining,Phase 2D software was used to establish three numerical mod-els,namely,plain spray concrete support,anchor net support and spray anchor net joint support,and analyze the distribution law of the roadway dis-placement,stress and plastic zone under the conditions of two types of surrounding rocks,namely,tuff and copper-sulfur ore.It was found that the displacement and deformation of the roadway mainly appeared in the position of arch shoulder and arch wall,and the three types of support can ef-fectively control the deformation of the surrounding rock,and the effect of the support is 50 mm plain spray＜anchor net support＜combined spray and anchor net support,so it is recommended to use the combined spray and anchor net support under tuff conditions in the mines.The study can provide experience for the support of the tunnel in similar mine conditions.
deep miningroadway supportnumerical simulationsurrounding rock stability
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