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本项目研究了松软破碎围岩U型支架支护巷道浅封深注加固支护机理,优选出浆液的合理配比,创造性采用了浅封深注加固新技术,使千米深度的松软破碎围岩架棚支护巷道在跨采面断层煤柱压力作用下取得了理想的加固效果,解决了千米深度、高地压、多种典型巷道不同岩性、断层煤柱作用的跨采加固与保护技术问题。,在松软破碎围岩架棚巷道的加固技术方面有了新的突破。高地压巷道跨采加固支护,是实现深井跨采加固设计有效途径和科学手段,为深部矿井跨采巷道支护和加固提供了一套科学、合理的设计理念和程式。
In this project, the mechanism of shallow sealing and deep injection reinforcement support of soft crushing surrounding rock U-shaped support tunnel is studied, the reasonable proportion of slurry is optimized and a new technique of shallow seal and deep injection reinforcement is creatively adopted to make the soft crushing circumference of km depth The rock canopy supporting roadway has achieved the ideal reinforcement effect under the pressure of the coal pillar in the cross-section mining face, and has solved the problems of over-excavation, reinforcement and protection of kilometers of depth, high ground pressure, various lithologies of various typical tunnels and the effect of fault pillars technical problem. , A new breakthrough has been made in the reinforcement technology of soft crushed surrounding rock shelters. It is an effective way and scientific method to realize deep-span cross-excavation and reinforcement design and provides a set of scientific and reasonable design concepts and programs for the support and reinforcement of deep mine cross-mining roadway.