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Construction structure and method suitable for building and transporting offshore wind power barrel type foundation on semi-submersible barge
The invention relates to a construction structure and method suitable for building and transporting an offshore wind power barrel type foundation on a semi-submersible barge. According to the construction method, the semi-submersible barge is berthed in a wharf, a scaffold is welded, and barrel skirt construction is carried out; the semi-submersible barge sinks to reduce the operation height, a base bailey truss is hung for bottom plate construction; a formwork is erected to carry out transition section construction, and a foundation barrel skirt is welded with a buoyancy tank and is fixed with the semi-submersible barge; and the foundation is transported to a construction site as a whole, the foundation is inflated to float upward and be separated from the semi-submersible barge, and the foundation is subjected to negative-pressure sinking for self-weight sinking and negative-pressure sinking construction. The defects that a traditional barrel type foundation is large in manufacturing difficulty, high in transportation cost and large in sinking installation risk, a large-tonnage gantry crane needs to be unloaded, a jig frame needs to be dismantled, and stability is poor during floating transportation are overcome, and the integrated manufacturing, transportation and installation process of an offshore wind turbine barrel type foundation is achieved. A manufacturing site and the hoisting cost are saved, the foundation unloading construction period is eliminated, the scaffold and the buoyancy tank are recycled, and the stability of foundation transportation sinking construction is improved.
本发明涉及一种适用于半潜驳上建造运输海上风电筒型基础的施工结构及方法。本发明通过半潜驳靠泊码头焊接脚手架并进行筒裙施工，半潜驳下沉降低作业高度，基础贝雷架吊挂底板施工，支模进行过渡段施工，基础筒裙焊接浮箱并与半潜驳固定，基础整体运输到施工现场，基础充气上浮与半潜驳分离，基础负压下沉进行自重下沉和负压下沉施工。解决了传统筒型基础制造难度大、运输成本高、下沉安装风险大、大吨位龙门吊倒驳、需要拆除胎架、浮运时稳性不佳等弊端，实现了海上风机筒型基础一体化制造运输安装过程，兼有节省制造场地及吊运费用、消除基础倒驳工期、实现脚手架及浮箱重复利用、提高了基础运输下沉施工的稳定性。
Construction structure and method suitable for building and transporting offshore wind power barrel type foundation on semi-submersible barge
The invention relates to a construction structure and method suitable for building and transporting an offshore wind power barrel type foundation on a semi-submersible barge. According to the construction method, the semi-submersible barge is berthed in a wharf, a scaffold is welded, and barrel skirt construction is carried out; the semi-submersible barge sinks to reduce the operation height, a base bailey truss is hung for bottom plate construction; a formwork is erected to carry out transition section construction, and a foundation barrel skirt is welded with a buoyancy tank and is fixed with the semi-submersible barge; and the foundation is transported to a construction site as a whole, the foundation is inflated to float upward and be separated from the semi-submersible barge, and the foundation is subjected to negative-pressure sinking for self-weight sinking and negative-pressure sinking construction. The defects that a traditional barrel type foundation is large in manufacturing difficulty, high in transportation cost and large in sinking installation risk, a large-tonnage gantry crane needs to be unloaded, a jig frame needs to be dismantled, and stability is poor during floating transportation are overcome, and the integrated manufacturing, transportation and installation process of an offshore wind turbine barrel type foundation is achieved. A manufacturing site and the hoisting cost are saved, the foundation unloading construction period is eliminated, the scaffold and the buoyancy tank are recycled, and the stability of foundation transportation sinking construction is improved.
本发明涉及一种适用于半潜驳上建造运输海上风电筒型基础的施工结构及方法。本发明通过半潜驳靠泊码头焊接脚手架并进行筒裙施工，半潜驳下沉降低作业高度，基础贝雷架吊挂底板施工，支模进行过渡段施工，基础筒裙焊接浮箱并与半潜驳固定，基础整体运输到施工现场，基础充气上浮与半潜驳分离，基础负压下沉进行自重下沉和负压下沉施工。解决了传统筒型基础制造难度大、运输成本高、下沉安装风险大、大吨位龙门吊倒驳、需要拆除胎架、浮运时稳性不佳等弊端，实现了海上风机筒型基础一体化制造运输安装过程，兼有节省制造场地及吊运费用、消除基础倒驳工期、实现脚手架及浮箱重复利用、提高了基础运输下沉施工的稳定性。
Construction structure and method suitable for building and transporting offshore wind power barrel type foundation on semi-submersible barge
适用于半潜驳上建造运输海上风电筒型基础的施工结构及方法
LIU HAIBO (author) / WU SIZHOU (author) / TAO TIELING (author) / ZOU YOU (author) / ZENG BIN (author) / HE JIE (author) / GAN LE (author) / ZHANG PENG (author) / ZHANG FAYIN (author) / LIU JING (author)
2021-11-05
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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