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针对东滩煤矿北轨大巷巷道支护难题,提出了适用于深井软岩的新型“缓释、阻断和增强”复合支护技术体系,可以最大限度地提高软弱岩体自身强度和围岩主动承载的效果,最终形成围岩-支护结构协同承载体系。经过工程实践验证,新型支护技术最终控制巷道变形量在0.8%~1%,工程应用效果良好。
Aiming at the problem of roadway support in the north track of Dongtan coal mine, a new type of “slow release, block and enhance” composite supporting technology system is proposed for deep soft rock, which can improve the self-strength of soft rock mass Surrounding rock initiative bearing the effect of the formation of the surrounding rock - supporting the structure of the co-bearing system. After engineering practice verified, the new type of support technology finally controls the deformation of the roadway in 0.8% ~ 1%, the project application effect is good.