通过本论文所作的工作，可以为地下结构开挖的设计与施工提供参考依据。
Works in this paper can provide useful information for design and constructing of subterranean structures.
同可比较的钢材或者混凝土结构，它更加的轻巧，减少了基础开挖的的深度和广度。
It is also lighter than comparable steel or concrete structures, reducing the depth and extent of excavation and foundations.
分岔隧道是一种新型的隧道结构形式，其设计方案、开挖支护方法对围岩稳定性至关重要。
Bifurcated tunnel is one of the new type tunnels, the excavation way and support style are key factors to the rock stability.
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