福建一闸三线工程跨海段设计方案比选

Comparison and selection of cross-sea design scheme of Fujian“one-sluice three-line”project

随着社会经济发展和科技进步,海底隧道设计施工逐渐应用于工程。为选取技术经济优的跨海线路设计方案,本文以福建省一闸三线工程跨海段为例,首先对穿越海峡的不同设计方案进行分析,从技术可行性的角度选出了海底铺管与盾构穿越方案,进一步综合比选分析得出:海底铺管穿越方案为最优方案。研究成果可为海底沉管隧道工程方案选择提供有益参考。

With the development of social economy and the progress of science and technology,the design and construction of submarine tunnel is gradually applied to engineering.In order to select the best technical and economic cross-sea route design scheme,this paper takes the cross-sea section of the‘one-sluice three-line’project in Fujian Province as an example.Firstly,different design schemes for crossing the strait are analyzed,and the submarine pipe laying and shield crossing schemes are selected from the perspective of technical feasibility,and the economic rationality and technical feasibility are further considered.The comparison analysis shows that the submarine pipe laying and shield crossing scheme is the best scheme.The research results can provide useful reference for the project selection of submarine immersed tube tunnel.