厦门东通道跨海工程比选

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。

SCHEME COMPARISON FOR CROSSING SEA PROJECT OF XIAMEN EAST PASSAGE

Crossing Sea Project of Xiamen East Passage is under the feasibility study. Two alternatives, the bridge and the tunnel, are preselected for this project. This paper demonstrates the advantages of the tunnel for this project. Three tunnel construction methods are put forward and compared, including drilling and blasting method, tunnel boring machine method and immersed tunnel method, in which the geological conditions, the requirements linking line between the two banks and the environment protection of this project are considered. Through the comparison and analysis of the advantage and difficult point of each method, the drilling and blasting method is recommended. At present stage, many projects crossing sea and river are carried out, so the pre-stage work of this project will be helpful to the other engineers for the similiar projects.