In view of the problem that the existing natural coastline will be damaged by the buried sea pipe,a new elevated drainage scheme is proposed.Physical model test is carried out to study and demonstrate the foam problem in the process of overhead drainage,the impact on the internal structure of the drainage head and the backwater problem inside the drainage head.In addition,the plane and vertical elevation layout of the overhead drainage scheme and the stress compensation mode of the drainage pipe are analyzed.The results show that it is feasible to adopt the elevated drainage scheme,which can avoid the excavation of the existing coast and seabed,protect the coastline to a greater extent,and reduce the impact on the sea area.It can be considered in some LNG receiving station projects with high requirements for coastline protection.