CN111021328A - Submerged large-diameter multi-compartment cylinder and pile foundation combined artificial island - Google Patents
Submerged large-diameter multi-compartment cylinder and pile foundation combined artificial island Download PDFInfo
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- CN111021328A CN111021328A CN201911277284.8A CN201911277284A CN111021328A CN 111021328 A CN111021328 A CN 111021328A CN 201911277284 A CN201911277284 A CN 201911277284A CN 111021328 A CN111021328 A CN 111021328A
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- pile foundation
- artificial island
- cylinder
- partition plate
- combined artificial
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
Abstract
The invention relates to a combined artificial island of a submerged large-diameter multi-compartment cylinder and a pile foundation. The invention is suitable for soft soil foundation and deep water condition, and is convenient and fast to construct.
Description
Technical Field
The invention relates to the field of port coast and offshore engineering, in particular to artificial island engineering.
Background
The pipe pile foundation type structure (such as an inverted T-shaped pipe wall pile foundation breakwater, published as CN101314942) is suitable for deep water and soft soil foundations, and has the advantages of light dead weight, high bearing capacity and convenient construction. The large-diameter cylinder structure (such as a steel cylinder with a wide mortise device, with the publication number of CN104099940A) is a large-diameter cylinder made of steel or reinforced concrete, and is divided into a sitting bed type and a sinking type, the structure has good stress characteristic, is convenient and fast to construct, and can be used for quickly building an artificial island. When foundation soil is weak, a large submerged cylinder structure with deep soil penetration depth is needed, and construction difficulty is increased; on the other hand, in the application of the cylindrical structure, the backfill in the cylinder is usually needed to increase the structural rigidity, but the self weight of the backfill is too large to affect the bearing capacity of the cylindrical structure.
Disclosure of Invention
The invention aims to combine the advantages of a large-diameter cylinder structure that the island and pipe pile type structures can be quickly formed, and the artificial island structure has strong bearing capacity and light dead weight, and is suitable for soft soil foundations and deep water conditions and convenient and fast to construct. The technical scheme is as follows:
the combined artificial island is characterized in that the multi-compartment cylinder comprises a large-diameter cylinder and an inner partition plate, the inner partition plate comprises a main partition plate and an auxiliary partition plate, and a conduit for driving the pile foundation is arranged at the intersection of the main partition plate and the auxiliary partition plate.
Soft soil foundations are widely distributed in Bohai gulf, Yangtze river mouth, Zhujiang river mouth and Zhejiang and Min coastal areas with active economic development in China, and the thickness is different from several meters to dozens of meters; at present, port, coast and offshore engineering gradually develop to deep water, and so do artificial island construction. In the combined artificial island structure of the sinking type large-diameter multi-bay barrel and the pile foundation, the sinking type large-diameter barrel blocks and retains water, the internal bay of the barrel increases the structural rigidity and forms a conduit at the same time, and the pile foundation in the conduit can increase the vertical bearing capacity and the anti-sliding and anti-tilting stability of the structure; the structure has good bearing property, high construction speed and small material consumption, and has wide application prospect in the muddy coast of China.
Drawings
FIG. 1 is a single-unit appearance diagram of a combination of a sinking type large-diameter multi-compartment tube and a pile foundation of an artificial island structure
FIG. 2 is a structure diagram of an artificial island combining a large-diameter large-bay barrel and a pile foundation
In the figure, 1 is a large-diameter cylinder, 2 is an auxiliary partition plate, 3 is a main partition plate, and 4 is a pile foundation.
Detailed Description
The basic component unit of the combined artificial island structure of the sinking type large-diameter multi-compartment cylinder and the pile foundation consists of a large-diameter cylinder 1, an inner partition plate and the pile foundation. When steel is adopted to manufacture the multi-bay cylinder, the large-diameter cylinder is connected with the inner partition plate in a welding way; when the reinforced concrete multi-bay cylinder is adopted, the large-diameter cylinder and the inner partition plate are respectively prefabricated, and cast in situ during construction to be connected into a whole. The inner partition board is divided into a main partition board 3 and an auxiliary partition board 2, and a pipe is formed at the intersection of the main partition board and the auxiliary partition board for driving a pile foundation. And a water stopping device is arranged between the two adjacent groups of structures.
The main construction process of the sinking type large-diameter multi-compartment tube and pile foundation combined artificial island structure comprises the following steps: when the steel cylinder is adopted, the multi-bay cylinder is prefabricated on land, and is transported out integrally, transported to a construction site in a floating manner and sunk to a specified depth; when the reinforced concrete cylinder is adopted, the cylinder and the main and auxiliary inner partition plates are prefabricated respectively, transported to a construction site in a floating mode, the cylinder is firstly sunk to a specified depth, then the inner partition plates are arranged, and a joint is cast in situ; and finally, placing the pile foundation in the guide pipe, and driving the pile into a specified depth by adopting equipment such as a piling ship and the like.
Claims (2)
1. The combined artificial island is characterized in that the multi-compartment cylinder comprises a large-diameter cylinder and an inner partition plate, the inner partition plate comprises a main partition plate and an auxiliary partition plate, and a conduit for driving the pile foundation is arranged at the intersection of the main partition plate and the auxiliary partition plate.
2. The artificial island according to claim 1, wherein a water stop device is provided in the middle of adjacent constituent units.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201911277284.8A CN111021328A (en) | 2019-12-12 | 2019-12-12 | Submerged large-diameter multi-compartment cylinder and pile foundation combined artificial island |
Applications Claiming Priority (1)
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CN201911277284.8A CN111021328A (en) | 2019-12-12 | 2019-12-12 | Submerged large-diameter multi-compartment cylinder and pile foundation combined artificial island |
Publications (1)
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CN111021328A true CN111021328A (en) | 2020-04-17 |
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Family Applications (1)
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CN201911277284.8A Pending CN111021328A (en) | 2019-12-12 | 2019-12-12 | Submerged large-diameter multi-compartment cylinder and pile foundation combined artificial island |
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CN (1) | CN111021328A (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2304688Y (en) * | 1997-09-03 | 1999-01-20 | 天津奈普顿近海工程开发有限公司 | Barrel type mono-column foundation structure with loading tank for supporting platform |
CN101200898A (en) * | 2007-12-04 | 2008-06-18 | 中铁大桥局股份有限公司 | Construction method of drilling pile base for bare rock and shallow overburden |
CN101666098A (en) * | 2009-08-03 | 2010-03-10 | 天津大学 | Sheet-cell conduit frame prefabricated part pilling structure and dock using same |
CN202990947U (en) * | 2012-11-12 | 2013-06-12 | 中国海洋石油总公司 | Basement type underwater dry wellhead structure |
CN108774996A (en) * | 2018-08-09 | 2018-11-09 | 天津大学 | Circle rectangle suction type foundation and steel sheet pile combined type breakwater structure |
CN211816152U (en) * | 2019-12-12 | 2020-10-30 | 天津大学 | Submerged large-diameter multi-compartment cylinder and pile foundation combined artificial island |
-
2019
- 2019-12-12 CN CN201911277284.8A patent/CN111021328A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2304688Y (en) * | 1997-09-03 | 1999-01-20 | 天津奈普顿近海工程开发有限公司 | Barrel type mono-column foundation structure with loading tank for supporting platform |
CN101200898A (en) * | 2007-12-04 | 2008-06-18 | 中铁大桥局股份有限公司 | Construction method of drilling pile base for bare rock and shallow overburden |
CN101666098A (en) * | 2009-08-03 | 2010-03-10 | 天津大学 | Sheet-cell conduit frame prefabricated part pilling structure and dock using same |
CN202990947U (en) * | 2012-11-12 | 2013-06-12 | 中国海洋石油总公司 | Basement type underwater dry wellhead structure |
CN108774996A (en) * | 2018-08-09 | 2018-11-09 | 天津大学 | Circle rectangle suction type foundation and steel sheet pile combined type breakwater structure |
CN211816152U (en) * | 2019-12-12 | 2020-10-30 | 天津大学 | Submerged large-diameter multi-compartment cylinder and pile foundation combined artificial island |
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WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200417 |
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WD01 | Invention patent application deemed withdrawn after publication |