This article reveals a number of examples of the introduction of new technologies in construction for the implementation of new high-tech projects. Some aspects of the technology of construction of marine gravity bases for technological lines for the liquefaction of natural gas and stable gas condensate are considered. During the construction of the gravity foundation, new compositions of heavy, high-strength modified and light concrete were used, as well as the tension of reinforcing ropes on hardened concrete. During the construction process, inventory panel changeable and sliding formwork was used for various structures of complex configuration.

Keywords: gravity type base, liquefied natural gas, post-tension, high-strength modified concrete, floating offshore structures