摘要
岩溶问题是隧道开挖过程中不可避免的课题。为开展岩溶隧道开挖顺序优化研究,以某岩溶区隧道为依托,通过FLAC~(3D)软件对该隧道岩溶段左右线不同开挖顺序进行模拟,综合分析不同开挖顺序的拱顶沉降、围岩应力及主矢位移等关键指标,从而确定了岩溶隧道开挖顺序的最佳方案,为今后同类隧道开挖施工提供可借鉴的经验。
The karst problem is unavoidable in the process of tunnel excavation. In order to optimize the excavation sequence of karst tunnels,we simulated the different excavation sequence of left/right line of a certain karst tunnel by FLAC~(3 D),and analyzed the key indicators,such as crown settlement,surrounding rock stress and principal vector displacement under different excavation sequence. Finally the optimum excavation sequence was determined.This study can provide reference for similar tunnel excavation projects in the future.
引文
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