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为解决泄水巷支护的问题,提出采用预应力耦合让压支护体系的方案。通过锚杆让压性能试验、锚杆拉拔现场试验,确定本方案有效控制大采深动压巷道变形量;通过观测分析,证明该支护体系能够有效控制动压巷道变形。
In order to solve the problem of spillway support, a scheme of using prestressed coupling to make pressure support system is proposed. Through the test of the pressure performance of the anchor rod and the drawing test of the anchor rod, the program was determined to effectively control the deformation of the roadway with large mining depth and pressure. The observation and analysis showed that the support system can effectively control the deformation of dynamic pressure roadway.