Abstract: Most of tunnel system bolt design are analogical between each other without any consideration of the effect of surrounding rock. Taking tunnel surrounding rock and supporting as an unifier,a surrounding rock -support system was built up to join in work. Through bearing-load arch theory, and calculation theory study of tunnel system bolt, the certain parameters were ascertained to reduce the cost of construction.

Key words: tunnel, system bolt, bearing-load arch, calculation theory

摘要： 隧道系统锚杆的设计大多采用工程类比法,没有充分考虑到围岩对支护结构的影响.隧道围岩和支护结构作为一个统一的整体,二者共同组成"围岩-支护"体系参与作用,并通过承压拱机理,对隧道系统锚杆的设计计算理论进行研究,从而确定其合理参数,降低建设成本。

关键词: 隧道, 系统锚杆, 承压拱, 计算理论