城市浅埋隧道设计与施工方法研究

城市发展过程中，交通与环境的矛盾日益突出，为了保全地面结构物，采用隧道方寨的也越来越多。城市隧道最显著的特征是浅埋、地面结构物复杂、围岩差。文中结合厦门市机场路一期工程梧村山隧道的莲前西路下穿道这一具体工程，在分析现有城市浅埋隧道施工方案的基础上，通过优化施工步骤和支护参数，结合有限元分析计算，验证展线明挖方案和管幕暗挖两种方案都是合理可行的，考虑到投资和施工风险，最终决定采用展线明挖方案。

Study on Construction and Design of Shallow Buried Tunnels in the City

The contradictions between communications and environment are more and more obtrusive in the development of cities, to preserve the constructions on the ground, more and more tunnel plans are adopted. The most salient-featured points of tunnels in cities are shallow buried, complication of ground-constructions and weak surrounding rock. According to the construction of Xiamen airdrome road the first scheduled project , based on the analysis of construction schemes of urban shallow buried tunnels , through optimizing the construction steps and support parameters integrated with FEM analysis , this paper vaLidated that both the cut-and-cover plan and buried plan are in reason. But with consideration of investment and constructing risk, the cut-and-cover plan is chosen at last.