CN208501718U - A kind of annular caisson structure - Google Patents
A kind of annular caisson structure Download PDFInfo
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- CN208501718U CN208501718U CN201821075011.6U CN201821075011U CN208501718U CN 208501718 U CN208501718 U CN 208501718U CN 201821075011 U CN201821075011 U CN 201821075011U CN 208501718 U CN208501718 U CN 208501718U
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- borehole wall
- wall
- ring borehole
- partition wall
- inner ring
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Abstract
The utility model discloses a kind of annular caisson structures, including open caisson ontology, the open caisson ontology includes the outer ring borehole wall and the inner ring borehole wall, several partition walls are provided between the outer ring borehole wall and the inner ring borehole wall, the annular space formed between the outer ring borehole wall and the inner ring borehole wall is divided into several independent fan-shaped cavities by the partition wall, is provided with fan-shaped wellhole in each fan-shaped cavity.The open caisson of the utility model uses ring section, and water flow adaptability is good, and local scouring depth is small, the flow force and wave force that structure is born are small, and fan-shaped wellhole is provided in fan-shaped cavity, can reduce open caisson partition wall entity area, convenient for uniformly taking soil during well sinking, well sinking is assisted.
Description
Technical field
The utility model belongs to the technical field in caisson structure field, and in particular to a kind of annular caisson structure.
Background technique
With the rapid development of the national economy, transport development demand surges, is building both at home and abroad and preparing to build big
Type bridge is more and more, and with the appearance of bridge spanning the sea, span of bridge is increasing.These length, big bridge majority are built in
On the anxious big rivers of the depth of water, the stream or sea of bad environments, often encounters that the depth of water is relatively deep, washes away very big etc. problems, very unfavorable
In bridge construction, the difficulty that basis is built is also bigger.The construction cost of bridge substructure typically constitutes from the throwing of bed rearrangement bridge 30%
Money is an important factor for influencing bridge economic.Currently used well foundation form mainly has round, rectangle and nose circle shape,
Wellhole in section is mostly determinant arrangement, is above had the following problems in bridge deepwater foundation application:
(1) rectangular in cross-section and circle are obtuse section, and water flow bad adaptability, local scouring depth is big, and structure is born
Flow force and wave force it is big.
(2) wellhole determinant is arranged as non-centrosymmetric structure in section, and plane torsion is easy to appear in sinking and is difficult to
The problem of correction.
In the prior art, application No. is the Chinese utility model patents of CN201520240322.3 to disclose a kind of open caisson knot
Structure, including concrete column, concrete column are two, and two concrete column medial surfaces are equipped with inner casing, inner casing at top
Using steel construction, and bolt is horizontally connected between inner casing and concrete column, two concrete column bottoms are connected with a reinforcement bottom
Plate is reinforced bottom plate and is connect by built-in steel nail with concrete column, steel pipe is equipped between two concrete columns, steel pipe both ends extend in mixed
In solidifying earth pillar, steel pipe reinforcing member is installed on steel pipe, steel pipe reinforcing member uses inverted trapezoidal structure, and steel pipe lower surface is equipped with isolation
Plate, steel pipe insertion are arranged on isolation board.Cylinder examination basis and pile foundation is used to cause merely although above structure avoids open caisson
Key dimension and the excessive problem of buried depth, but the caisson structure is tubular integral structure, water flow bad adaptability, local scour
Depth is big, and structure impact resistance is poor.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of water flow adaptability to solve deficiency existing for above-mentioned background technique
Good, structure strong shock resistance annular caisson structure.
A kind of in order to achieve the above purposes, the technical solution adopted by the utility model is: annular caisson structure, including open caisson sheet
Body, the open caisson ontology include the outer ring borehole wall and the inner ring borehole wall, are provided with several between the outer ring borehole wall and the inner ring borehole wall
The annular space formed between the outer ring borehole wall and the inner ring borehole wall is divided into several independent fan-shaped skies by partition wall, the partition wall
Chamber is provided with fan-shaped wellhole in each fan-shaped cavity.
In above-mentioned technical proposal, it is provided with cross partition wall in the inner ring borehole wall, the cross partition wall is by inner ring well
The space that wall surrounds is divided into four independent wellholes, and the cross section of each wellhole is in a quarter round.
In above-mentioned technical proposal, the cross partition wall includes the first partition wall and the second partition wall, first partition wall and the
Two partition walls are arranged vertically.
In above-mentioned technical proposal, the partition wall and cross partition wall are centrosymmetric arrangement.
In above-mentioned technical proposal, the ladder to match with external load-bearing structure is provided at the top of the outer ring of the outer ring borehole wall
Shape boss cap.
In above-mentioned technical proposal, the inner cavity top of the open caisson ontology is provided with cushion cap, and the inner ring of the outer ring borehole wall is set
It is equipped with the bearing boss for installation platform.
In above-mentioned technical proposal, the underfill of the open caisson ontology has concrete sealing bottom layer.
In above-mentioned technical proposal, the diameter D of the outer ring borehole wall1With the diameter D of the inner ring borehole wall2The ratio between be 1:0.4~0.8.
The beneficial effects of the utility model are:
First, the open caisson ontology of the utility model includes the outer ring borehole wall and the inner ring borehole wall, open caisson uses ring section, water flow
Adaptability is good, and local scouring depth is small, and the flow force and wave force that structure is born are small.
Second, the partition wall of the utility model the annular space formed between the outer ring borehole wall and the inner ring borehole wall is divided into it is several
A independent fan-shaped cavity is provided with fan-shaped wellhole in each fan-shaped cavity, can reduce open caisson partition wall entity area, is convenient for open caisson
Soil is uniformly taken in sinking watching, assists well sinking.
Third, the open caisson of the utility model is center symmetrical structure, it is easy to position during well sinking, is not in
Open caisson reverses incorrigible problem, and convenient in wellhole to weighing soil and bottom concrete is constructed.
Fourth, setting stairstepping boss cap is at the top of the outer ring of the outer ring borehole wall of the utility model to adapt to top bearing structure
Construction reduces open caisson diameter, reduces basic scale, can be applied to the depth of water relatively depth or washes away biggish inland river, in marine environment, no
Bridge foundation structure stress, economy and exploitativeness can only be met also superior to currently used base form.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the annular caisson structure of the utility model；
Fig. 2 is the schematic cross-sectional view of annular caisson structure shown in Fig. 1；
In figure: 1- open caisson ontology, the 2- outer ring borehole wall, the 3- inner ring borehole wall, 4- partition wall, 5- sector wellhole, 6- cross partition wall,
The first partition wall of 6.1-, the second partition wall of 6.2-, 7- wellhole, 8- stairstepping boss cap, 9- cushion cap, 10- bearing boss.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, convenient for being well understood
The utility model, but they do not constitute the utility model and limit.
Steel open caisson, concrete open caisson can be used in annular caisson structure as shown in Figure 1, including open caisson ontology 1, well foundation
Or steel reinforced concrete combines open caisson, open caisson ontology 1 includes the outer ring borehole wall 2 and the inner ring borehole wall 3, and open caisson uses ring section, water flow adaptability
Good, local scouring depth is small, and the flow force and wave force that structure is born are small.The diameter D of the outer ring borehole wall 21With the inner ring borehole wall 3
Diameter D2The ratio between be 1:0.4~0.8.The stairstepping to match with external load-bearing structure is provided at the top of the outer ring of the outer ring borehole wall 2
Boss cap 8.The inner cavity top of open caisson ontology 1 is provided with cushion cap 9, and the inner ring of the outer ring borehole wall 2 is provided with holding for installation platform 9
Boss 10 is carried, the underfill of open caisson ontology 1 has concrete sealing bottom layer 11.Setting stairstepping is convex at the top of the outer ring of the outer ring borehole wall 2
Platform cap reduces open caisson diameter to adapt to top bearing structure construction, reduces basic scale.
As shown in Fig. 2, be provided with several partition walls 4 between the outer ring borehole wall 2 and the inner ring borehole wall 3, partition wall 4 is by the outer ring borehole wall 2
The annular space formed between the inner ring borehole wall 3 is divided into several independent fan-shaped cavities, is provided in each fan-shaped cavity
Fan-shaped wellhole 5.It is provided with cross partition wall 6 in the inner ring borehole wall 3, partition wall 4 and cross partition wall 6 are centrosymmetric arrangement, ring
Central symmetry sector wellhole is arranged around tee section, can reduce open caisson partition wall entity area, be centrosymmetrically arranged, convenient under open caisson
Soil is uniformly taken during heavy, assists well sinking.The space that the inner ring borehole wall 3 surrounds is divided into four independences by cross partition wall 6
Wellhole 7, the cross section of each wellhole 7 is in a quarter round.Cross partition wall 6 include the first partition wall 6.1 and second every
Wall 6.2, the first partition wall 6.1 are arranged vertically with the second partition wall 6.2, in this way by the symmetrical cross of setting in intermediate circular hole every
Wall, convenient in wellhole to weigh soil and bottom concrete construct.
The open caisson of the utility model can be used following construction method and construct: first to sea bed within the scope of 20m around open caisson
It is protected in advance using the method for throwing protective layer；Steel open caisson is integrally manufactured near the bridge location in dock, undocks transportation by driving extremely
Bridge location；It is accurately positioned using station keeping ship or anchoring pile anchorage positioning system, water filling sinking implantation to stable depth；Be perfused the borehole wall and every
Concrete within the walls；Open caisson suck sediment subsidence and concrete connect height alternately, until caisson cutting edge reaches designed elevation；Then to heavy
Well wellhole borehole cleaning, bottom concrete perfusion；Finally, cushion cap concrete construction.
More than, only specific embodiment of the present utility model, it is noted that it is existing skill that remaining is unspecified
Art, anyone skilled in the art is in the technical scope disclosed by the utility model, the variation that can readily occur in or
Replacement, should be covered within the scope of the utility model.
Claims (8)
1. a kind of annular caisson structure, including open caisson ontology (1), it is characterised in that: the open caisson ontology (1) includes the outer ring borehole wall
(2) and the inner ring borehole wall (3) several partition walls (4), the partition wall, are provided between the outer ring borehole wall (2) and the inner ring borehole wall (3)
(4) annular space formed between the outer ring borehole wall (2) and the inner ring borehole wall (3) is divided into several independent fan-shaped cavities, often
Fan-shaped wellhole (5) are provided in a fan-shaped cavity.
2. annular caisson structure according to claim 1, it is characterised in that: be provided with cross in the inner ring borehole wall (3)
The space that the inner ring borehole wall (3) surrounds is divided into four independent wellholes (7) by shape partition wall (6), the cross partition wall (6), often
The cross section of a wellhole (7) is in a quarter round.
3. it is according to claim 2 annular caisson structure, it is characterised in that: the cross partition wall (6) include first every
Wall (6.1) and the second partition wall (6.2), first partition wall (6.1) are arranged vertically with the second partition wall (6.2).
4. annular caisson structure according to claim 3, it is characterised in that: the partition wall (4) and cross partition wall (6) are equal
Be centrosymmetric arrangement.
5. annular caisson structure according to claim 1 or 2 or 3 or 4, it is characterised in that: outside the outer ring borehole wall (2)
Circle top is provided with the stairstepping boss cap (8) to match with external load-bearing structure.
6. it is according to claim 1 or 2 or 3 or 4 annular caisson structure, it is characterised in that: the open caisson ontology (1) it is interior
Top of chamber is provided with cushion cap (9), and the inner ring of the outer ring borehole wall (2) is provided with the bearing boss (10) for installation platform (9).
7. annular caisson structure according to claim 1 or 2 or 3 or 4, it is characterised in that: the bottom of the open caisson ontology (1)
Portion is filled with concrete sealing bottom layer (11).
8. it is according to claim 1 or 2 or 3 or 4 annular caisson structure, it is characterised in that: the outer ring borehole wall (2) it is straight
Diameter D1With the diameter D of the inner ring borehole wall (3)2The ratio between be 1:0.4~0.8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821075011.6U CN208501718U (en) | 2018-07-06 | 2018-07-06 | A kind of annular caisson structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821075011.6U CN208501718U (en) | 2018-07-06 | 2018-07-06 | A kind of annular caisson structure |
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| Publication Number | Publication Date |
|---|---|
| CN208501718U true CN208501718U (en) | 2019-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821075011.6U Active CN208501718U (en) | 2018-07-06 | 2018-07-06 | A kind of annular caisson structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685293A (en) * | 2018-07-06 | 2020-01-14 | 中铁第四勘察设计院集团有限公司 | Annular open caisson structure |
| CN111074925A (en) * | 2020-01-21 | 2020-04-28 | 中建桥梁有限公司 | Construction method of suspension bridge gravity type anchorage porous annular foundation |
| US11371204B2 (en) * | 2018-10-24 | 2022-06-28 | Byung Kwan Kang | Ring-shaped cofferdam and temporary pit excavation structure using tapered square pipe, and construction method thereof |
-
2018
- 2018-07-06 CN CN201821075011.6U patent/CN208501718U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685293A (en) * | 2018-07-06 | 2020-01-14 | 中铁第四勘察设计院集团有限公司 | Annular open caisson structure |
| US11371204B2 (en) * | 2018-10-24 | 2022-06-28 | Byung Kwan Kang | Ring-shaped cofferdam and temporary pit excavation structure using tapered square pipe, and construction method thereof |
| CN111074925A (en) * | 2020-01-21 | 2020-04-28 | 中建桥梁有限公司 | Construction method of suspension bridge gravity type anchorage porous annular foundation |
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