CN109235473A - A kind of application in reinforced concrete structure in water of Large-diameter Steel cylinder cofferdam - Google Patents
A kind of application in reinforced concrete structure in water of Large-diameter Steel cylinder cofferdam Download PDFInfo
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- CN109235473A CN109235473A CN201811151968.9A CN201811151968A CN109235473A CN 109235473 A CN109235473 A CN 109235473A CN 201811151968 A CN201811151968 A CN 201811151968A CN 109235473 A CN109235473 A CN 109235473A
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- steel cylinder
- water
- concrete structure
- cofferdam
- reinforced concrete
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/02—Restraining of open water
- E02D19/04—Restraining of open water by coffer-dams, e.g. made of sheet piles
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
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Abstract
The present invention discloses a kind of application of Large-diameter Steel cylinder cofferdam in water in reinforced concrete structure, belong to concrete structure technique field, the following steps are included: 1) first loosen steel cylinder (2) using deep-cement mixer ship and be coupled the soil body that secondary lattice (6) intend installation site, soil layer is squeezed into steel cylinder (2) bottom, depth is made to meet sealing requirement；Then by being coupled secondary lattice (6) that the connection of multiple steel cylinders (2) is integral；2) first in steel cylinder (2) interior construction armored concrete, then it is being coupled in secondary lattice (6) concrete of constructing, is eventually forming reinforced concrete structure in required water.Reinforced concrete structure in water provided by the invention, cofferdam construction is high-efficient, and the period is short；After steel cylinder cofferdam squeezes into sealing layer, itself has water-stagnating effect, with it is traditional build island cofferdam compared with, reduce the sealing difficulty after cofferdam is formed.
Description
Technical field
The present invention relates to the applications in a kind of Large-diameter Steel cylinder cofferdam in water reinforced concrete structure, belong to concrete
Technical field of structures.
Background technique
Currently, generally needing the island Xian Zhu, construction water-stop curtain, then in water before large ferroconcrete structure construction
Earth excavation, reinforced concrete structures construction are carried out, or directly pours underwater concrete formation outer walls of concrete after building island, then
Carry out inside excavation, reinforced concrete structures construction.It is long due to building the island time using the above method, patching need to be carried out,
Operate time-consuming and laborious, when in addition pouring underwater concrete, quality is not easy to ensure.
Summary of the invention
In view of the above existing problems in the prior art, the present invention provides a kind of Large-diameter Steel cylinder cofferdam, reinforcing bar is mixed in water
Application in Xtah Crude Clay structure, it is easy for construction, reduce the sealing difficulty after cofferdam is formed.
To achieve the goals above, a kind of Large-diameter Steel cylinder cofferdam that the present invention uses reinforced concrete structure in water
In application, comprising the following steps:
1) steel cylinder is first loosened using deep-cement mixer ship and is coupled the soil body that secondary lattice intend installation site, steel bottom of cylinder is beaten
Underground layer makes depth meet sealing requirement, then by being coupled secondary lattice that the connection of multiple steel cylinders is integral；
2) first in steel cylinder interior construction reinforced bar concrete, then it is being coupled in secondary lattice concrete of constructing, is eventually forming in required water
Reinforced concrete structure.
As an improvement, in the step 1), before steel bottom of cylinder is squeezed into soil layer, first on steel cylinder and the secondary lattice of connection
Ribs is installed respectively to carry out local strengthening.
As an improvement, the connection pair lattice use curved plate.As an improvement, the connection pair between multiple steel cylinders
Lattice surround cofferdam center, are filled with sand in the cofferdam center.
As an improvement, being equipped with the T-steel of several reinforcements on the steel cylinder.
As an improvement, being additionally provided with sealing pair lattice on the outside of the steel cylinder.
As an improvement, steel cylinder interior is equipped in the cross partition that pours, a part of steel circle in the step 2)
Cylinder and gap and steel the cylinder outside poured between partition have poured plain concrete；
The steel cylinder of another part and gap, the steel cylinder outside poured between partition are equipped with hollow cabin lattice.
As an improvement, after corresponding concrete of having constructed respectively in steel cylinder, the secondary lattice of connection, then being poured in the step 2
Top plate is built up to reinforced concrete structure in the water.
Compared with prior art, reinforced concrete structure in water provided by the invention, cofferdam construction is high-efficient, and the period is short；
After steel cylinder cofferdam squeezes into sealing layer, itself has water-stagnating effect, with it is traditional build island cofferdam compared with, reduce after cofferdam formed
Sealing difficulty.
Detailed description of the invention
Fig. 1 is the mounting structure schematic diagram of steel cylinder in the present invention；
Fig. 2 is the connection schematic diagram of two steel cylinders in the present invention；
Fig. 3 is reinforced concrete structure schematic diagram in the present invention；
In figure: 1, sealing pair lattice, 2, steel cylinder, 3, sand, 4, ribs, 5, T-steel, 6, the secondary lattice of connection, 7, plain concrete, 8,
Armored concrete, 9, pour partition, 10, hollow cabin lattice.
Specific embodiment
In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention is carried out below further detailed
It describes in detail bright.However, it should be understood that the specific embodiments described herein are merely illustrative of the present invention, it is not limited to this hair
Bright range.
Unless otherwise defined, all technical terms and scientific terms used herein are led with technology of the invention is belonged to
The normally understood meaning of the technical staff in domain is identical, and term as used herein in the specification of the present invention is intended merely to retouch
State the purpose of specific embodiment, it is not intended that in the limitation present invention.
As shown in Figure 1, Figure 2 and Figure 3, a kind of Large-diameter Steel cylinder cofferdam application in reinforced concrete structure in water,
The following steps are included:
1) steel cylinder 2 is first loosened using deep-cement mixer ship and is coupled the soil body that secondary lattice 6 intend installation site, by 2 bottom of steel cylinder
Portion squeezes into soil layer, and depth is made to meet sealing requirement, is then connected multiple steel cylinders 2 by the secondary lattice 6 of connection integral；
2) first in 2 interior construction armored concrete of steel cylinder, then it is being coupled in secondary lattice 6 concrete of constructing, is eventually forming required water
Middle reinforced concrete structure.
As the improvement of embodiment, in the step 1), before soil layer is squeezed into 2 bottom of steel cylinder, first in steel cylinder 2 and
It is coupled on secondary lattice 6 and ribs 4 is installed respectively to carry out local strengthening.
As the improvement of embodiment, the connection pair lattice 6 use curved plate, the connection between multiple steel cylinders 2
Secondary lattice 6 surround cofferdam center, are filled with sand 3 in the cofferdam center.Additionally, it is preferred that, in the outer of cofferdam center
Side can also be filled with sand 3.
As the improvement of embodiment, the T-steel 5 of several reinforcements is installed on the steel cylinder 2, improves overall structure
Intensity.
As the improvement of embodiment, the outside of the steel cylinder 2 is additionally provided with sealing pair lattice 1.
As the improvement of embodiment, it is equipped in the step 2), inside steel cylinder 2 and pours partition 9 in cross, one
It partial steel cylinder 2 and pours and has poured C15 plain concrete 7 on the outside of gap and steel cylinder 2 between partition 9, in addition, in steel
In the cylinder 2 and side of sealing pair lattice 1 has also poured C40 armored concrete；
It the steel cylinder 2 of another part and pours gap between partition 9, be equipped with hollow cabin lattice 10 on the outside of steel cylinder 2, through stress meter
It calculates, when installing superstructure, to be not required to casting concrete part at hollow cabin lattice, setting purpose is to save project inputs.
As the improvement of embodiment, after reinforced concrete structure of having constructed respectively in steel cylinder 2, the secondary lattice 6 of connection, then pour
Top plate is built up to reinforced concrete structure in the water.
In the present invention, specific work progress is as follows:
Barrel gap and the outside soil body sandy pile construction for carrying out steel cylinder 2 first, then loosen steel using deep-cement mixer ship
Cylinder 2 and sealing pair lattice 1, the secondary lattice 6 of connection are intended setting the position soil body, and the heavy steel cylinder 2 of vibration waterborne and sealing pair lattice 1 are coupled pair lattice 6
And backfill in time, rotary churning pile reinforcing is unfolded simultaneously with bored concrete pile, grout curtain in cofferdam, after the completion of bored concrete pile pours, steel cylinder 2
The interior above steel pile casting of designed elevation is pulled out, and steel pile casting is retained as contrary sequence method lower part in secondary lattice in sealing pair lattice 1, the secondary lattice 6 of connection
Support.Stage excavation in steel cylinder 2, pours bottom concrete；It is layered precipitation, steel ring beam is reinforced in layering；It constructs from bottom to up base
Plinth bottom plate, wall.Sealing pair lattice 1 are coupled in secondary lattice 6 stage excavation and placement layer by layer wall, bottom plate from top to bottom, with steel cylinder
Wall, bottom plate in 2 are linked to be entirety.After bottom plate and wall are fully completed, hierarchical block pours top plate.
In water provided by the invention in reinforced concrete structure, cofferdam construction is high-efficient, and the period is short；Steel cylinder cofferdam is squeezed into
After sealing layer, itself has water-stagnating effect, with it is traditional build island cofferdam compared with, reduce the sealing difficulty after cofferdam is formed.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modification, equivalent replacement or improvement etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (8)
1. a kind of application in reinforced concrete structure in water of Large-diameter Steel cylinder cofferdam, which is characterized in that including following step
It is rapid:
1) steel cylinder (2) are first loosened using deep-cement mixer ship and is coupled the soil body that secondary lattice (6) intend installation site, by steel cylinder
(2) soil layer is squeezed into bottom, and depth is made to meet sealing requirement；Then multiple steel cylinders (2) are connected by the secondary lattice (6) of connection whole
Body；
2) first in steel cylinder (2) interior construction armored concrete, then it is being coupled in secondary lattice (6) concrete of constructing, is eventually forming institute
Need reinforced concrete structure in water.
2. a kind of Large-diameter Steel cylinder cofferdam according to claim 1 application in reinforced concrete structure in water,
It is characterized in that, in the step 1), before soil layer is squeezed into steel cylinder (2) bottom, first in steel cylinder (2) and the secondary lattice (6) of connection
Upper install respectively ribs (4) are to carry out local strengthening.
3. a kind of Large-diameter Steel cylinder cofferdam according to claim 1 or 2 application in reinforced concrete structure in water,
It is characterized in that, the connection pair lattice (6) use curved plate.
4. a kind of Large-diameter Steel cylinder cofferdam according to claim 3 application in reinforced concrete structure in water,
It is characterized in that, the connection pair lattice (6) between multiple steel cylinders (2) surround cofferdam center, fill in the cofferdam center
There are sand (3).
5. a kind of Large-diameter Steel cylinder cofferdam according to claim 1 application in reinforced concrete structure in water,
It is characterized in that, the T-steel (5) of several reinforcements is installed on the steel cylinder (2).
6. a kind of Large-diameter Steel cylinder cofferdam application in reinforced concrete structure in water according to claim 1 or 5,
It is characterized in that, being additionally provided with sealing pair lattice (1) on the outside of the steel cylinder (2).
7. a kind of Large-diameter Steel cylinder cofferdam according to claim 6 application in reinforced concrete structure in water,
It is characterized in that, in the step 2), is equipped with inside steel cylinder (2) and is poured partition (9) in cross, the steel cylinder of part
(2) it and pours and has poured plain concrete (7) on the outside of gap and steel cylinder (2) between partition (9)；
The steel cylinder (2) of another part and gap, steel cylinder (2) outside poured between partition (9) are equipped with hollow cabin lattice (10).
8. a kind of Large-diameter Steel cylinder cofferdam according to claim 1 application in reinforced concrete structure in water,
It is characterized in that, in the step 2, after corresponding concrete of having constructed respectively in steel cylinder (2), the secondary lattice (6) of connection, then pours
Top plate is up to reinforced concrete structure in the water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811151968.9A CN109235473A (en) | 2018-09-29 | 2018-09-29 | A kind of application in reinforced concrete structure in water of Large-diameter Steel cylinder cofferdam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811151968.9A CN109235473A (en) | 2018-09-29 | 2018-09-29 | A kind of application in reinforced concrete structure in water of Large-diameter Steel cylinder cofferdam |
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| Publication Number | Publication Date |
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| CN109235473A true CN109235473A (en) | 2019-01-18 |
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| CN201811151968.9A Pending CN109235473A (en) | 2018-09-29 | 2018-09-29 | A kind of application in reinforced concrete structure in water of Large-diameter Steel cylinder cofferdam |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2538430B2 (en) * | 1991-03-13 | 1996-09-25 | 株式会社フジタ | Construction method of outer peripheral cut-off wall of artificial island |
| CN1508363A (en) * | 2002-12-18 | 2004-06-30 | 株式会社德达渡 | Steel-tube-sheet pile sunk-well foundation and steel-tube-sheet pile used thereof |
| CN102720204A (en) * | 2012-06-05 | 2012-10-10 | 中交第一航务工程局有限公司 | Water stopping method of man-made island steel cylinder cofferdam structure |
| CN103510531A (en) * | 2013-09-18 | 2014-01-15 | 中交公路长大桥建设国家工程研究中心有限公司 | Split type open caisson pile-added combined anchorage foundation and construction method thereof |
-
2018
- 2018-09-29 CN CN201811151968.9A patent/CN109235473A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2538430B2 (en) * | 1991-03-13 | 1996-09-25 | 株式会社フジタ | Construction method of outer peripheral cut-off wall of artificial island |
| CN1508363A (en) * | 2002-12-18 | 2004-06-30 | 株式会社德达渡 | Steel-tube-sheet pile sunk-well foundation and steel-tube-sheet pile used thereof |
| CN102720204A (en) * | 2012-06-05 | 2012-10-10 | 中交第一航务工程局有限公司 | Water stopping method of man-made island steel cylinder cofferdam structure |
| CN103510531A (en) * | 2013-09-18 | 2014-01-15 | 中交公路长大桥建设国家工程研究中心有限公司 | Split type open caisson pile-added combined anchorage foundation and construction method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 肖仕宝等: "一种新型整体式钢圆筒围堰在暗埋法桥墩中的应用", 《中国港湾建设》 * |
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Application publication date: 20190118 |
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