我国浅部煤层已经基本开采完毕,大多进入了深部开采阶段。由于巷道所处地层条件复杂多样,围岩性质千差万别,且多数巷道在服务年限内还要经受采动的剧烈影响,其中的支护费用往往高达巷道工程总费用的51%以上。所以研究采深增加、地压增大及不同的巷道围岩条件下,怎样选择合理的支护方式,用较低的支护成本达到较好的巷道支护效果,保证煤矿安全生产已经成为刻不容缓的重要课题。 China’s shallow coal seam has been basically completed mining, most of them have entered a deep stage of exploitation. Due to the complex and diverse formation conditions of the roadway, the nature of the surrounding rock varies widely. Most of the roadways have to undergo the dramatic impact of mining during their service life, of which the supporting costs are often as high as 51% of the total cost of the roadway project. Therefore, under the conditions of increased mining depth, increased ground pressure and different surrounding rock conditions, how to select a reasonable support mode, achieve better tunnel support effect with lower support cost and ensure safe production of coal mine has become an urgent task An important issue.