Construction method of large-diameter steel-concrete combined cylindrical structure
A construction method and combined cylinder technology, which are applied in basic structure engineering, underwater structures, artificial islands, etc., can solve the problems of poor durability and high production and construction costs, reduce the requirements of lifting capacity, and achieve fast and convenient construction. construction effect
Active Publication Date: 2022-05-10
CCCC FIRST HARBOR ENG
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Problems solved by technology
[0004] Aiming at the technical problems of high production and construction costs and poor durability in the above-mentioned prior art, the present invention proposes a construction method for a large-diameter steel-concrete composite cylindrical structure, which can effectively reduce construction costs and is easy to engineer Manufactured, the resulting cylindrical structure is durable
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[0047] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.
[0048] In describing the present invention, it is to be understood that the terms "central", "transverse", "longitudinal", "upper", "lower", "vertical", "horizontal", "top", "bottom", The orientation or positional relationship indicated by "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying...
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The invention provides a construction method of a large-diameter steel-concrete combined cylindrical structure, which comprises the following steps: manufacturing a steel cylinder body and dowel bars: manufacturing the steel cylinder body and a plurality of dowel bars, and forming a notch in the lower end part of each dowel bar; the dowel bars and the steel cylinder are installed, specifically, the dowel bars are vertically inserted into the upper end of the cylinder wall of the steel cylinder at intervals through the notches to be fixed; the supporting structure comprises a plurality of transversely-arranged supporting rods, one end of each supporting rod is connected with one dowel bar, and the other ends of the supporting rods intersect and are fixed on the central axis of the steel cylinder; manufacturing and mounting of an annular driver: fixedly connecting the annular driver with the upper end part of the dowel bar; vibration sinking construction is conducted, specifically, a vibration sinking tool is installed for vibration sinking, and after vibration sinking construction is completed, the annular replacement hitting structure and the supporting structure are dismantled; prefabricating the concrete cylinder; and mounting the concrete cylinder. According to the construction method, the construction cost can be effectively reduced, engineering manufacturing is easy, and the obtained cylindrical structure is high in durability.
Description
technical field [0001] The invention belongs to the technical field of cylindrical bank revetment structures of offshore artificial islands in soft ground areas, and in particular relates to a construction method for a large-diameter steel-concrete composite cylindrical structure. Background technique [0002] The large-diameter steel cylinder revetment structure is a new type of structure used in the construction of offshore artificial islands. It has been verified that the structure has fast construction, engineering manufacturing, and The characteristics of low environmental impact are the key technologies to realize the rapid construction of artificial islands. [0003] However, the diameter of the steel cylinder revetment structure is relatively large, generally between a dozen meters and tens of meters. For example, the diameter of the steel cylinder used for the artificial island of the Hong Kong-Zhuhai-Macao Bridge is 22m, and the diameter of the steel cylinder used ...
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IPC IPC(8): E02B3/06E02B17/00E02D5/18E02D5/52
CPCE02B3/066E02B17/003E02D5/18E02D5/526
Inventor 李一勇杜闯孙竹冯玉玺张健宁
Owner CCCC FIRST HARBOR ENG
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