Therefore, it was advised that choosing a new mining plan with respect to all mechanized panels should not be necessary to the macro-horizontal jamb in the future.

• 已经屈服的水平矿柱对上盘围岩中巷道工程的抵顶作用将衰减，不会成为未来巷道破坏的主要影响因素，故没有必要调整水平矿柱上各盘区的既定采矿方案。