Some useful conclusions on the cross section design of the submerged floating tunnel in the Jintang strait were gained by three-dimensional analysis and segmental model experimental investigation, and a few helpful advice on the concept design of the submerged floating tunnel in the Jintang strait was presented. 通过空间分析和节段模型试验得到了对金塘海峡水下悬浮隧道截面设计有益的一些结论,对金塘海峡水下悬浮隧道概念设计方案提出了一些有益的建议。