针对综采大跨度回采巷道顶板难以控制的现场实际，在分析了单层岩层稳定性的主要影响因素基础上，运用UDEC3.0数值模拟软件深入研究了由单层岩层组合而成的回采巷道顶板稳定性的影响因素及其变形破坏规律。提出了通过合理布置锚索的位置，达到锚杆—锚索协同支护的减跨作用，在此基础上发挥锚杆的组合梁（拱）及悬吊作用以控制大跨度回采巷道冒顶事故的新的支护思想，并将其应用于神东矿区补连塔煤矿大跨度回采巷道，取得了良好的现场应用效果。

Aiming at the locale facts of difficult roof controlling for large span gateway of fully-mechanized coal faces, based on analysis of the influence factors of monolayer strata stability, the numerical simulation soft UDEC3.0 is employed to deeply research influence factors and changing rules of roof stability of the gateway which is composed by some monolayer strata. A new supporting idea of reducing span supporting function by bolts cooperating with anchor cables is brought forward by disposing anchor cables at the appropriate locations, the traditional supporting theory such as suspensory and compounding beam (arch) are still operated at the same time. A good result is achieved after the new supporting idea is applied in the large span gateway of Bulianta Colliery in Shendong diggings.