摘  要：在“南京市梅子洲过江通道接线工程——青奥轴线地下交通系统工程”中创新性地采用了三层叠交近距隧道群施工技术，实现了长江漫滩地区高承压水地质条件下深大基坑开挖过程中的成功降水，解决了隧道主线与各平交道路出入口无缝衔接等难题，并极大地节省了工程用地面积，可为同类工程施工提供参考。

Abstract: In "Nanjing Meizizhou river crossing channel connection project——Underground transportation system and related projects along the Youth  Olympic axis", the construction technology of three-layer overlapped close distance tunnel group is innovatively adopted, and it realizes the successful dewatering during the excavation of deep and large foundation pit under the high pressure water geological conditions in the flood plain area of the Yangtze River, solves some problems such as seamless connection between the main line of the tunnel and the entrances and exits of each level crossing road, and greatly saves the area of the project land. The successful construction of this project can provide a reference for similar projects.