深部高应力软岩巷道协同锚护技术研究与应用

Study and Application of Synergetic Bolting for Deep Heavily Stressed Soft-rock Roadway

针对深部高应力软岩巷道高围压、大变形、难控制等问题,在现场调研的基础上,提出协同锚护控制机理,研究并建立包括锚杆(索)高预紧力技术、锚杆(索)高锚固力技术、锚杆(索)群连锁锚固技术、锚固岩体高强度技术、锚固岩体高刚度技术、锚杆(索)协同锚固技术、锚杆-锚索-架棚协同锚护技术等在内的协同锚护技术体系,实现了对高应力软岩巷道的有效控制,取得了明显的社会经济效益。

Aiming at the high confining pressure, large deformation and uncontrollability of the deep heavily stressed soft - rock roadway. Based on field investigation, the synergetic bolting and controlling mechanism was proposed, synergetic bolting system was established, comprising high pre - stress technology of bolt or cable, high bolt - hold technique of bolt or cable, bolting technique of linkage group, high - strength bolted rock mass technique, high - stiffness bolted rock mass technique, synergetic bolting technique of bolt or cable, and bolt - cable - shelf bolting support technique, which achieved effective control of heavily stressed soft - rock roadway, and favorable social and economic profits.