Deep water foundation and construction method thereof

Abstract

The invention discloses a deep water foundation and a construction method thereof. The deep water foundation comprises steel shell concrete tube columns and a plurality of bored piles, wherein each steel shell concrete tube column is composed of a dual-wall steel shell and a concrete tube wall, the lower ends of the steel shell concrete tube columns are connected with the plurality of bored pilesvia physical concrete sections; and cross concrete partition walls are arranged on the physical concrete sections. The construction method specifically comprises the steps as follows: the dual-wall steel shells are manufactured in a factory while the bored piles are constructed at pier positions; the dual-wall steel shells are lowered as a whole by using steel protection tubes of the bored piles as a guidance system; after the dual-wall steel shells are lowered in place, two layers of concrete base seal sections are poured in sequence; the concrete tube walls between the inner and outer wallsof the dual-wall steel shells are poured; seawater in the steel shell concrete tube columns is pumped out, the steel protection tubes above the top surfaces of the concrete base seal sections are removed, and the physical concrete sections and the cross concrete partition walls are poured in the absence of water. The deep water foundation is simple in structure, clear in stress, economical and reasonable, and controllable in construction risk.

Description

technical field [0001] The invention relates to the technical field of marine engineering, in particular to a deep-water foundation and a construction method thereof. Background technique [0002] With the rapid development of the national economy, more and more large-scale marine projects such as cross-sea bridges, wind power projects, and oil drilling platforms are being constructed in China, and the construction environment they are facing is becoming more and more complex and diverse. Hurricanes, deep water, rapids, strong swells, undulating seabed terrain and bare rock geological conditions are all challenges and difficulties that must be faced and overcome in order to advance the deep water foundation of marine engineering. [0003] In order to reduce the workload and working time of water construction in the harsh marine environment as much as possible, improve the quality of the project and shorten the construction period, a large-scale, integrated, factory prefabric...

AI Technical Summary

Problems solved by technology

It is very difficult and inefficient to carry out underwater blasting, slag removal, leveling and scour protection construction under the conditions of deep water, high waves and strong wind, and the precise positioning during the setting of the foundation is greatly affected by the on-site wind and waves. Large, construction risks are difficult to control

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