CN203429648U - Large steel cylinder cofferdam structure - Google Patents

Large steel cylinder cofferdam structure Download PDF

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Publication number
CN203429648U
CN203429648U CN201320518256.2U CN201320518256U CN203429648U CN 203429648 U CN203429648 U CN 203429648U CN 201320518256 U CN201320518256 U CN 201320518256U CN 203429648 U CN203429648 U CN 203429648U
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CN
China
Prior art keywords
steel
cylindrical shell
cofferdam
steel cylinder
horizontal
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Withdrawn - After Issue
Application number
CN201320518256.2U
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Chinese (zh)
Inventor
卢永昌
梁桁
肖仕宝
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CCCC FHDI Engineering Co Ltd
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CCCC FHDI Engineering Co Ltd
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Priority to CN201320518256.2U priority Critical patent/CN203429648U/en
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Abstract

The utility model discloses a large steel cylinder cofferdam structure and belongs to the technical field of cofferdam structures. The large steel cylinder cofferdam structure is technically characterized in that a steel structure cylinder is included, a plurality of vertical reinforcing ribs are distributed on the inner wall of the cylinder at intervals in the circumference direction, a plurality of transverse reinforcing structures are arranged on the inner wall the inner wall of the exposed part of the cylinder at intervals in the axial direction, and the inner diameter of the cylinder is 15-30m. The large steel cylinder cofferdam structure is reasonable, high in construction efficiency and capable of being recycled, and is used for ocean engineering structure construction like bridge bearing platforms.

Description

Large Steel cylinder cofferdam structure
Technical field
The utility model relates to a kind of cofferdam structure, more particularly, relates in particular to a kind of Large Steel cylinder cofferdam structure of building for offshore engineering structures such as bridge bearing platforms.
Background technology
For SeaBird outside, make dry construction condition among a small circle, adopt steel sheet pile (or steel pipe pile) to add the construction cofferdam of support more, or the Double-Wall Steel Boxed Cofferdam that forms of multistage steel plate unit.The construction cofferdam that adds support for steel sheet pile (or steel pipe pile) needs many steel sheet piles of injection and according to the cutting depth of foundation ditch, braced structures is installed step by step, by burying and supporting, meets stable and sealing requirement; Double-Wall Steel Boxed Cofferdam needs block-by-block splicing steel plate unit, then carries out building of bottom concrete, meets stable and sealing requirement.The working procedure of above two kinds of form of structure all comparatively numerous and diverse, sealing guarantee degree is not high, and all can only single uses, can not recycle.
Utility model content
The purpose of this utility model is for above-mentioned the deficiencies in the prior art, provide a kind of rational in infrastructure, efficiency of construction is high and the Large Steel cylinder cofferdam structure that can be recycled.
The technical solution of the utility model is achieved in that a kind of Large Steel cylinder cofferdam structure, comprises the cylindrical shell of steel work, and wherein said cylinder inboard wall is along being circumferentially intervally distributed with some vertical ribs; On the inwall of cylindrical shell exposed part, be interval with vertically some horizontal reinforcement structures; The internal diameter of described cylindrical shell is 15~30 meters.
In above-mentioned Large Steel cylinder cofferdam structure, described vertical ribs is T-steel, and the length of described T-steel and cylindrical shell height adapt; Spacing between described adjacent two vertical ribs is 2~3 meters.
In above-mentioned Large Steel cylinder cofferdam structure, the thickness of described cylindrical shell is 16~25mm; In cylindrical shell upper end, be connected with top reinforcing ring, the width of described top reinforcing ring is 0.8~1.5 meter, and thickness is 20~25mm; Described cylindrical shell lower end is connected with bottom reinforcing ring, and the width of described bottom reinforcing ring is 0.3~1 meter, and thickness is 20~25mm.
In above-mentioned Large Steel cylinder cofferdam structure, described horizontal reinforcement structure is comprised of the some horizontal annular ribs that radially arrange along cylinder inboard wall respectively and some polygon horizontal braces structures; Described horizontal annular ribs and polygon horizontal braces spacing structure and be interspersed.
In above-mentioned Large Steel cylinder cofferdam structure, the longitudinal section of described horizontal annular ribs is T-shaped.
In above-mentioned Large Steel cylinder cofferdam structure, described polygon horizontal braces structure is comprised of the π shaped steel radially arranging along cylinder inboard wall and the some steel support beams of sequentially arranging that are arranged on π shaped steel outer face, described π shaped steel is structure ringwise, and described some steel support beams coordinate and are polygonized structure.
In above-mentioned Large Steel cylinder cofferdam structure, each steel support beam π shaped steel both sides corresponding with the contact site of π shaped steel are respectively equipped with some support floors.
In above-mentioned Large Steel cylinder cofferdam structure, cylinder body outer wall corresponding to described π shaped steel is provided with reinforcement steel plate.
In above-mentioned Large Steel cylinder cofferdam structure, the spacing between described adjacent two horizontal annular ribs is 2~3 meters, and the spacing between described adjacent two polygon horizontal braces structures is 2~3 meters.
In above-mentioned Large Steel cylinder cofferdam structure, in described horizontal reinforcement structure and cylindrical shell between the foundation pile of structure to be onstructed and be equipped with some auxiliary bolsters between adjacent each foundation pile.
The utility model adopts after said structure, by adopting all-in-one-piece steel cylindrical shell, realizes easy construction, efficiency of construction is high, sealing guarantee degree is high object, meanwhile, by horizontal reinforcement structure is set in cylindrical shell, guarantees the intensity of whole cylindrical shell; And, for meet shake heavy, on pull out during the transmission of vertical force, at cylinder inboard wall along being arranged circumferentially some vertical ribs.Compared with prior art, the utlity model has reasonable in design, install easy, reinforcement measure is simple, steadiness is good, the advantage that sealing guarantee degree is high, all-in-one-piece steel cylindrical shell substitutes traditional cofferdam as cofferdam simultaneously, recycles rate high, and its market prospects are wide.
Accompanying drawing explanation
Below in conjunction with the embodiment in accompanying drawing, the utility model is described in further detail, but do not form any restriction of the present utility model.
Fig. 1 is the utility model sectional structure schematic diagram vertically;
Fig. 2 is plan structure schematic diagram of the present utility model;
Fig. 3 is the local enlarged diagram at A place in Fig. 1;
Fig. 4 is the local enlarged diagram at B place in Fig. 1;
Fig. 5 is the local enlarged diagram at C place in Fig. 2;
Fig. 6 is the local enlarged diagram at D place in Fig. 1;
Fig. 7 is the local enlarged diagram at E place in Fig. 1;
Fig. 8 is the local enlarged diagram at F place in Fig. 2;
Fig. 9 is the distributed architecture schematic diagram that the utility model supports floor;
Figure 10 is the local enlarged diagram at G place in Fig. 1;
Figure 11 is the local enlarged diagram at H place in Fig. 1.
In figure: cylindrical shell 1, strengthen steel plate 1a, vertical ribs 2, laterally strengthen structure 3, top reinforcing ring 4, bottom reinforcing ring 5, horizontal annular ribs 6, polygon horizontal braces structure 7, π shaped steel 7a, steel support beam 7b, support floor 7c, foundation pile 8, auxiliary bolster 9.
The specific embodiment
Consult shown in Fig. 1 and Fig. 2, a kind of Large Steel cylinder cofferdam structure of the present utility model, comprises the cylindrical shell 1 of steel work, and the thickness of cylindrical shell 1 is 16~25mm; At cylindrical shell 1 inwall along being circumferentially intervally distributed with some vertical ribs 2, vertical ribs 2 can meet whole cylindrical shell 1 shake heavy, on pull out during the transmission of vertical force; On the inwall of cylindrical shell 1 exposed part, be interval with vertically some horizontal reinforcement structures 3; The internal diameter of described cylindrical shell 1 is 15~30 meters, and the top mark of cylindrical shell 1 is high need be determined according to off-lying sea water level and wave, and end absolute altitude requires to determine according to the stable and sealing of structure under corresponding soil layer.Described exposed part, refers to that cylindrical shell shakes to sink to a rear exposed part in water., consult shown in Fig. 3 meanwhile, in cylindrical shell 1 upper end, be connected with top reinforcing ring 4, the width of described top reinforcing ring 4 is 0.8~1.5 meter, and thickness is 20~25mm; Consult shown in Fig. 4, described cylindrical shell 1 lower end is connected with bottom reinforcing ring 5, and the width of described bottom reinforcing ring 5 is 0.3~1 meter, and thickness is 20~25mm.By top reinforcing ring 4 and bottom reinforcing ring 5 are set, to increase the intensity of cylindrical shell 1, while guaranteeing to shake heavy and pull-up, be not prone to breakage.Further, laterally strengthening between structure 3 and the foundation pile 8 of cylindrical shell 1 interior structure to be onstructed and be equipped with some auxiliary bolsters 9 between adjacent each foundation pile 8.Auxiliary bolster 9 is after foundation pile 8 has been constructed, then installs, and is for improving the intensity of cylindrical shell 1, to resist huger external pressure equally.
As shown in Figure 5, in the present embodiment, described vertical ribs 2 is T-steel, and the length of described T-steel and cylindrical shell 1 highly adapt.And the spacing between adjacent two vertical ribs 2 is 2~3 meters.Density is crossed conference increases cost, causes unnecessary waste, the too small requirement that does not reach vertical force transmission of density.
, consult shown in Fig. 2, Fig. 6 and Fig. 7, described horizontal reinforcement structure 3 is comprised of the some horizontal annular ribs 6 that radially arrange along cylindrical shell 1 inwall respectively and some polygon horizontal braces structures 7 meanwhile; Described horizontal annular ribs 6 and polygon horizontal braces structure 7 intervals and be interspersed.This layout, can effectively improve intensity and the stressed uniformity of whole cylindrical shell 1, has enough inner support power opposing external water pressures.Particularly, the longitudinal section of the horizontal annular ribs 6 described in the present embodiment is T-shaped, and horizontal annular ribs 6 is welded on cylindrical shell.Described polygon horizontal braces structure 7 is comprised of the π shaped steel 7a radially arranging along cylindrical shell 1 inwall and the some steel support beam 7b that sequentially arrange that are arranged on π shaped steel 7a outer face, described π shaped steel 7a is structure ringwise, and described some steel support beam 7b coordinate and are polygonized structure.Consult shown in Fig. 8 and Fig. 9, further, because the contact site place of π shaped steel 7a and each steel support beam 7b is stressed larger, for preventing that it from deformation occurring, in each steel support beam 7b π shaped steel 7a both sides corresponding with the contact site of π shaped steel 7a, be respectively equipped with some support floor 7c, and, on cylindrical shell 1 outer wall corresponding to π shaped steel 7a, be provided with and strengthen steel plate 1a.Guarantee that cylindrical shell 1 and π shaped steel 7a have enough support strengths.Specifically as shown in Figure 10 and Figure 11, vertical ribs 2 is welded on respectively two outsides of horizontal annular ribs 6 and π shaped steel 7a to the annexation of the contact site of vertical ribs 2 and horizontal annular ribs 6 and π shaped steel 7a.
In the present embodiment, the spacing between adjacent two horizontal annular ribs 6 is 2~3 meters, and the spacing between described adjacent two polygon horizontal braces structures 7 is 2~3 meters.Rational spacing, can reach the object of effective reinforced tube 1 intensity, and spacing is excessive, does not reach needed intensity, and spacing is too small, causes again the waste of resource, the raising of construction cost.
During construction, first according to the concrete condition of position to be onstructed, the cylindrical shell 1 of design proper height and diameter, then carries out after structure assembling on land, winch to precalculated position shake heavy, the dry application work of then internal water being found time carry out.As required, after foundation pile 8 has been constructed, can add auxiliary 9 pairs of cylindrical shells 1 of bolster and reinforce, after construction completes, will assist bolster 9 excisions.Whole cylindrical shell 1 can be extracted out and recycle after construction completes.
Above-described embodiment is preferably embodiment of the utility model; but embodiment of the present utility model is not restricted to the described embodiments; and other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection domain of the present utility model.

Claims (10)

1. a Large Steel cylinder cofferdam structure, comprises and it is characterized in that the cylindrical shell (1) of steel work, described cylindrical shell (1) inwall is along being circumferentially intervally distributed with some vertical ribs (2); On the inwall of cylindrical shell (1) exposed part, be interval with vertically some horizontal reinforcement structures (3); The internal diameter of described cylindrical shell (1) is 15~30 meters.
2. Large Steel cylinder cofferdam structure according to claim 1, is characterized in that, described vertical ribs (2) is T-steel, and the length of described T-steel and cylindrical shell (1) highly adapt; Spacing between described adjacent two vertical ribs (2) is 2~3 meters.
3. Large Steel cylinder cofferdam structure according to claim 1, is characterized in that, the thickness of described cylindrical shell (1) is 16~25mm; In cylindrical shell (1) upper end, be connected with top reinforcing ring (4), the width of described top reinforcing ring (4) is 0.8~1.5 meter, and thickness is 20~25mm; Described cylindrical shell (1) lower end is connected with bottom reinforcing ring (5), and the width of described bottom reinforcing ring (5) is 0.3~1 meter, and thickness is 20~25mm.
4. Large Steel cylinder cofferdam structure according to claim 1, it is characterized in that, described horizontal reinforcement structure (3) is comprised of the some horizontal annular ribs (6) that radially arrange along cylindrical shell (1) inwall respectively and some polygon horizontal braces structures (7); Described horizontal annular ribs (6) and polygon horizontal braces structure (7) interval and be interspersed.
5. Large Steel cylinder cofferdam structure according to claim 4, is characterized in that, the longitudinal section of described horizontal annular ribs (6) is T-shaped.
6. Large Steel cylinder cofferdam structure according to claim 4, it is characterized in that, described polygon horizontal braces structure (7) is comprised of the π shaped steel (7a) radially arranging along cylindrical shell (1) inwall and some steel support beams (7b) of sequentially arranging of being arranged on π shaped steel (7a) outer face, described π shaped steel (7a) is structure ringwise, and described some steel support beams (7b) coordinate and are polygonized structure.
7. Large Steel cylinder cofferdam structure according to claim 6, is characterized in that, each steel support beam (7b) π shaped steel (7a) both sides corresponding with the contact site of π shaped steel (7a) are respectively equipped with some support floors (7c).
8. a kind of Large Steel cylinder cofferdam structure according to claim 6, is characterized in that, cylindrical shell (1) outer wall that described π shaped steel (7a) is corresponding is provided with strengthens steel plate (1a).
9. according to the arbitrary described Large Steel cylinder cofferdam structure of claim 5 to 8, it is characterized in that, spacing between described adjacent two horizontal annular ribs (6) is 2~3 meters, and the spacing between described adjacent two polygon horizontal braces structures (7) is 2~3 meters.
10. Large Steel cylinder cofferdam structure according to claim 1, it is characterized in that, in described horizontal reinforcement structure (3) and cylindrical shell (1) between the foundation pile (8) of structure to be onstructed and be equipped with some auxiliary bolsters (9) between adjacent each foundation pile (8).
CN201320518256.2U 2013-08-23 2013-08-23 Large steel cylinder cofferdam structure Withdrawn - After Issue CN203429648U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320518256.2U CN203429648U (en) 2013-08-23 2013-08-23 Large steel cylinder cofferdam structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320518256.2U CN203429648U (en) 2013-08-23 2013-08-23 Large steel cylinder cofferdam structure

Publications (1)

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CN203429648U true CN203429648U (en) 2014-02-12

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103397650A (en) * 2013-08-23 2013-11-20 中交第四航务工程勘察设计院有限公司 Large-scale steel cylinder cofferdam structure
CN103821157A (en) * 2014-02-27 2014-05-28 山东省路桥集团有限公司 Wallboard lattice type steel cover box and method for constructing underwater bearing platform steel cover box
CN105887695A (en) * 2016-05-25 2016-08-24 中交第航务工程局有限公司 Steel hoop support system applied to bottom of steel cylinder

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103397650A (en) * 2013-08-23 2013-11-20 中交第四航务工程勘察设计院有限公司 Large-scale steel cylinder cofferdam structure
CN103397650B (en) * 2013-08-23 2015-08-19 中交第四航务工程勘察设计院有限公司 A kind of large-scale steel cylinder cofferdam structure
CN103821157A (en) * 2014-02-27 2014-05-28 山东省路桥集团有限公司 Wallboard lattice type steel cover box and method for constructing underwater bearing platform steel cover box
CN103821157B (en) * 2014-02-27 2015-09-16 山东省路桥集团有限公司 Wallboard lattice steel jacket box and under water held platform set box construction method
CN105887695A (en) * 2016-05-25 2016-08-24 中交第航务工程局有限公司 Steel hoop support system applied to bottom of steel cylinder

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RGAV Abandon patent right to avoid regrant
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Granted publication date: 20140212

Effective date of abandoning: 20150819