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详细介绍了处于工程可行性研究阶段中的厦门东通道跨海工程项目,该工程预选方案为桥梁、隧道两大方案;阐明了隧道方案在该工程实施的优越性;并根据东通道隧址的地质、地形特性及两岸接线、环保要求,详细探讨了钻爆法、掘进机法及沉管法3种方案修建该海底工程的设计施工难点、重点及组织特点;通过分析3种方案的优缺点,推荐采用钻爆法修建。现阶段国内将实施多处跨海、跨江工程,期望该项目的前期工作将对同行有一定的参考价值。
This paper introduces in detail the cross-sea project of Xiamen East Passage in the project feasibility study stage. The pre-selection scheme of the project is the two schemes of bridges and tunnels. The superiority of the tunnel scheme in the project implementation is clarified. According to the East Channel Tunnel Geological, topographic characteristics and cross-Strait wiring, environmental requirements, discussed in detail the drilling and blasting method, boring machine and immersed tube method three kinds of programs to build the design and construction of the seabed engineering difficulties, priorities and organizational features; by analyzing the advantages and disadvantages of three kinds of programs , It is recommended to use drilling and blasting method to build. At this stage, China will implement a number of cross-sea and cross-river projects. It is expected that the preliminary work of the project will have some reference value for its counterparts.