Elastic transition section multi-cylinder-foundation structure and construction method thereof

Abstract

The invention belongs to the technical field of foundation structures of ocean engineering and discloses an elastic transition section multi-cylinder-foundation structure and a construction method thereof. The elastic transition section multi-cylinder-foundation structure comprises a plurality of steel cylinder foundations with the central points being connected into a circle, the multiple steel cylinder foundations are welded together, a steel top plate is connected to the upper parts of the multiple steel cylinder foundations, a concrete plate is arranged on the steel top plate, beam plate systems are distributed on the concrete plate, a concrete transition section is located on a middle ring beam, a steel tower cylinder is connected to the upper part of the concrete transition section in an embedded mode, and the junction of the upper part and the lower part of the steel tower cylinder is in contact with the concrete transition section and an inner ring beam through elastic buffer devices. The construction method of the elastic transition section multi-cylinder-foundation structure comprises the steps of prefabrication on land, shoreside hoisting, overwater towing, negative-pressure sinking, negative-pressure reinforcing and the like. The elastic transition section multi-cylinder-foundation structure has the advantages of cylindrical foundations, and is wide in application range, convenient to transport and mount, recyclable and high in bearing capacity, and the upper load can be transmitted to the transition section and the beam plate systems through the elastic bufferdevices on the upper part and the lower part in the construction period and the operation period.

Description

technical field [0001] The invention relates to the technical field of foundation structure of marine engineering, in particular to a multi-tube composite foundation structure and a construction method thereof. Background technique [0002] As a new type of foundation for offshore wind power generation, the large-scale cylindrical foundation can be constructed on land and quickly installed at sea. It has strong anti-overturning ability, is suitable for various foundation geology, and can make full use of the advantages of abundant offshore wind energy resources. . As the force transmission structure of this new type of offshore wind power generation foundation, the transition section is related to whether the foundation structure can safely transfer the upper load to the foundation and maximize the bearing capacity of the foundation. As the water depth increases, the large bending moment on the upper wind turbine and the tower transmits a greater load to the top of the tran...

AI Technical Summary

Problems solved by technology

[0003] The present invention focuses on solving the technical problems of unreasonable load transfer and complex construction and installation of the current offshore foundation structure, and provides a multi-tube foundation structure with elastic transition section and its construction method, which skillfully makes the load of the superstructure during the construction period and the operation period effective Transfers to straight transitions and concrete roof slabs and on to the steel drum foundation below

Images