当井巷围岩为松软破碎时,常给井巷施工带来很大困难。有的井巷投产后,围岩因受各种因素的影响而发生松动破裂,危及生产安全,如不采取有效措施治理,井巷将难以继续使用。在这种情况下,迅速而又可靠的井巷修复方法,首推井巷围岩的注浆加固治理。 When the rock surrounding rock is soft and broken, it often brings great difficulty to the construction of roadway. Some wells are put into operation, the rock due to various factors and the occurrence of loosening and cracking, endangering the safety of production, such as not take effective measures to control, the shaft will be difficult to continue to use. Under such circumstances, a quick and reliable method for repairing the shaft and grouting will be the first to promote the grouting reinforcement of the surrounding rock of the roadway.