随着煤矿开采深度的不断延伸,巷道支护也越来越困难,特别是沿煤层掘进的回采巷道,浅部的支护工艺及支护参数已不在满足深部巷道支护强度的要求,尤其是煤巷过应力集中区段显得更加突出。通过巷道受力变形破坏特征,选择性的对巷道支护的薄弱区进行加密支护,不仅最大限度的节约支护成本,而且确保了巷道的支护强度。 With the continuous extension of the depth of coal mining, roadway support is also more and more difficult, especially along the coal mining tunnel, shallow support technology and support parameters are no longer meet the requirements of deep roadway support strength, especially Overburden section stress concentration section is more prominent. Through the deformation and destruction characteristics of the roadway, selective support for weak areas of roadway support not only saves the maximum support cost, but also ensures the support strength of the roadway.