CN109914457A - A kind of more open caisson clustering design methods - Google Patents
A kind of more open caisson clustering design methods Download PDFInfo
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- CN109914457A CN109914457A CN201910144579.1A CN201910144579A CN109914457A CN 109914457 A CN109914457 A CN 109914457A CN 201910144579 A CN201910144579 A CN 201910144579A CN 109914457 A CN109914457 A CN 109914457A
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- open caisson
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Abstract
The invention discloses a kind of more open caisson clustering design methods, installation in place respectively using several open caisson units reuses connection structure covering, is mounted on above open caisson unit so that open caisson unit is connected as whole caisson.The beneficial effects of the present invention are: the present invention is constructed completion in advance using multiple small open caisson units, cushion cap is recycled to connect to form entirety by multiple small open caisson units, it can be effectively reduced manufacture difficulty, transport difficulty, positioning difficulty, installation difficulty and the difficulty of construction of open caisson, by being positioned to first small open caisson unit, other open caisson units are positioned based on first open caisson unit again, the positioning accuracy and installation accuracy that can be improved open caisson unit can be improved the positioning accuracy and installation accuracy of whole caisson.
Description
Technical field
The present invention relates to technical field of bridge engineering, specifically a kind of more open caisson clustering design methods.
Background technique
Open caisson is widely used in large bridge foundation construction, such as Analysis of Suspension Bridges ' Anchorage well foundation, cable-stayed bridge or suspension bridge
Foundation of main pylon etc..For general span bridge, because bridge load is little, corresponding open caisson scale is not also excessive, and the prior art is implemented
Difficulty is controllable.But for extra-large bridge, open caisson scale is correspondingly also very huge, such as Wufeng Mount Yangtze Bridge north anchorage open caisson
Key dimension reaches 86.9m(long) × 58.7m(wide) × 115m(high), open caisson size reaches in the Changjiang River bridge king-tower water of Shanghai
To 86.9m(long) × 58.7m(wide) × 115m(high), large-scale well-sinking leads to difficulty of construction very because size is big, weight weight
Greatly, careless slightly, it is possible to serious quality and safety problem occur.In the overall background that Bridges in Our Country engineering technology flourishes
Under, it is largely carried out across river large bridges over strait, more massive Qiongzhou Strait bridge, the Taiwan Straits bridge etc. are super
The construction of engineering is also brought into schedule, and such Super Engineering will be faced with deeper sea bed face, worse sea area operating condition, more greatly
Span and load, so it would be desirable to more massive foundation in water.
Summary of the invention
In order to overcome the deficiencies of the prior art, the present invention provides a kind of more open caisson clustering design methods, in large span
The basis of the large-scale engineerings such as suspension bridge open caisson Anchor Foundation, river-spanning bridge king-tower deep water foundation, ultra-large ultra-deep-water basis
In implementation, basic enforcement difficulty is reduced, improves basic efficiency of the practice.
Technical solution used by the present invention solves the above problems is: a kind of more open caisson clustering design methods, use are several
A open caisson unit is in place respectively, installs, and reuses connection structure covering, is mounted on above open caisson unit to connect open caisson unit
For whole caisson.
Beneficial effect acquired by this programme is: this programme is constructed completions in advance using multiple small open caisson units, then sharp
Multiple small open caisson units are connected to form entirety with cushion cap, can be effectively reduced the manufacture difficulty, transport difficulty, positioning of open caisson
Difficulty, installation difficulty and difficulty of construction, by being positioned to first small open caisson unit, then with first open caisson unit
Based on other open caisson units are positioned, can be improved the positioning accuracy and installation accuracy of open caisson unit, can be improved
The positioning accuracy and installation accuracy of whole caisson.
Further, in order to preferably realize the present invention, the open caisson unit is designed as cylindrical or prismatic.
Using beneficial effect acquired by above-mentioned further technical solution is: it is mutually positioned with this convenient for open caisson unit,
The positioning accuracy and installation accuracy for being conducive to improve open caisson unit, in the later period in use, making open caisson uniform force.
Further, in order to preferably realize the present invention, the open caisson unit is uniformly distributed by array.
It is using beneficial effect acquired by above-mentioned further technical solution: convenient for making open caisson unit uniform stressed, mentions
The intensity and stability of high whole caisson.
Further, in order to preferably realize the present invention, the connection structure is using cushion cap.
Using beneficial effect acquired by above-mentioned further technical solution is: convenient for by multiple open caisson units be connected with
It is formed whole.
Further, in order to preferably realize the present invention, the quantity of the open caisson unit is 2-4.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of this programme；
Fig. 2 is open caisson cellular array distribution schematic diagram；
Fig. 3 is the Triangle-Profile schematic diagram of open caisson unit；
Fig. 4 is the schematic diagram that is interspersed of multiple rows of open caisson unit.
Wherein: 1- open caisson unit, 2- connection structure, 3- king-post.
Specific embodiment
Below with reference to examples and drawings, the present invention is described in further detail, but embodiments of the present invention are not
It is limited to this.
Embodiment 1:
As shown in Figure 1 and Figure 2, in the present embodiment, a kind of more open caisson clustering design methods, respectively using several open caisson units 1
Position, installation reuse connection structure covering, are mounted on 1 top of open caisson unit so that open caisson unit 1 is connected as whole caisson.
When open caisson construction, it first is fabricated to the well foundation of a pit shaft shape in earth's surface, is then passed through under the going along with sb. to guard him of the borehole wall
It constantly cuts the earth out of well, open caisson is made gradually to sink under Gravitative Loads, after reaching predetermined design absolute altitude, then carry out back cover.
On large-span suspension bridge open caisson Anchor Foundation, river-spanning bridge king-tower deep water foundation, ultra-large ultra-deep-water basis etc.
During the basis of large-scale engineering is implemented, the open caisson size needed is larger, and is difficult to the basis of the construction open caisson directly in waters,
It needs to construct in advance open caisson or well foundation in earth's surface, then open caisson or well foundation is transported to anchor point, position and then make
Open caisson or well foundation location and installation are to carry out subsequent construction.In the larger-size situation of open caisson, need using proprietary mold
It constructs, to generate additional mold manufacturing expense and working hour, after Practical Completion, there is also molds to be suitable for
Other Engineering and the recycle value for reducing mold, and the manufacture difficulty of open caisson or well foundation is big, controls the difficulty of precision
Also it will increase.Open caisson or construction of Open Caisson Foundation need to be transferred to the top of waters anchor point after completing, due to open caisson or open caisson
The size on basis is larger, just will increase the difficulty and cost of transport.During open caisson or well foundation sink, it is vertical to need
Downwards, since the size of open caisson or well foundation is larger, there are positioning difficulties, and high, open caisson or the easy inclination of well foundation etc. are asked
Topic.It follows that the size due to open caisson is larger, by bring difficulty of construction to increase, the difficulty of control precision increases, manufacture at
The problems such as this increase.And for the particular manufacturing craft for needing to design, outside amount of production of constructing.
Large scale open caisson in traditional design thinking is changed to apply respectively using the lesser open caisson unit 1 of multiple sizes
Work when constructing to single open caisson unit 1, can significantly reduce the difficulty of construction of single open caisson unit 1.It prevents because of open caisson
It is oversized, uneven subsidence is easy to appear and leads to waters stratum or open caisson itself the phenomenon that cracking in construction.
Large scale open caisson is changed to using the lesser open caisson unit 1 of multiple sizes, when manufacturing open caisson unit 1, Neng Gouli
With previous mold, without additionally manufacturing large-scale particular manufacturing craft.Or it is heavy compared to large scale in traditional design thinking
Well can reduce the manufacturing cost and manufacture difficulty of mold.
And the open caisson unit 1 of smaller size can be reduced in the difficulty of transport, positioning, installation.Single open caisson list
Member 1 is since design size is reduced compared to traditional large scale open caisson, its corresponding positioning difficulty can reduce, positioning accurate
Degree can be improved.It, can be in this, as new positioning datum, to subsequent heavy after first construction of open caisson unit 1 is completed
Well unit 1 is positioned, and is conducive to improve the whole positioning accuracy of open caisson unit 1.In subsequent work progress, it is easier to control
The installation accuracy of open caisson unit 1, it is easier to avoid 1 run-off the straight of open caisson unit, or more hold after 1 run-off the straight of open caisson unit
Easily adjustment.
It finally is mounted on 1 top of open caisson unit using connection structure, open caisson unit 1 is enable mutually to interconnect by connection structure
It connects and mutually supports, open caisson unit 1 is finally made to form a whole caisson to meet construction requirement.Tradition is able to solve with this
Above-mentioned a series of problems brought by large scale open caisson in mentality of designing.
Under the premise of meeting same intensity requirement, using large-sized open caisson and using the open caisson unit of multiple small sizes
1 small comparison, large-sized open caisson occupied area is bigger, and boundary of works area is bigger, and when construction is even more serious to the environmental disruption in waters,
Destruction to environment can correspondingly be reduced, and prevent since boundary of works area can reduce using the open caisson unit 1 of small size
The stratum in waters influences the installation accuracy and stability of open caisson because of seriously being destroyed.
In the present embodiment, the open caisson unit 1 needs to be designed as cylindrical, elliptical cylinder-shape or prismatic according to construction.
It is convenient for finding suitable anchor point on the open caisson unit 1 that construction is completed with this, is conducive to be mutually positioned open caisson unit 1,
The positioning accuracy and installation accuracy for being conducive to improve open caisson unit 1, in the later period in use, making open caisson uniform force.
In the present embodiment, the open caisson unit 1 is uniformly distributed by array.
For example, being set side by side using two small open caisson units 1, whole sink is formed to combine by the connection of connection structure
Well.
As shown in Fig. 2, can arrange according to rectangular array using four open caisson units 1, pass through the connection of connection structure
Whole caisson is formed with combination.
As shown in figure 3, making open caisson unit 1 be triangularly arranged when using three open caisson units 1, passing through connection structure
Connection to form whole caisson to combine.
As shown in figure 4, multiple rows of open caisson unit 1 between adjacent two rows is arranged according to water (flow) direction for the open caisson unit 1
Be staggered, whole caisson formed to combine by the connection of connection structure, with this can using posterior open caisson unit 1 to
The preceding open caisson unit 1 for first bearing water impact plays the role of support, prevents preceding open caisson unit 1 because by water impact
And run-off the straight, be conducive to the stability for improving open caisson entirety.
In the present embodiment, the connection structure 2 uses cushion cap.Each open caisson unit can be connected well using cushion cap
1 and make a whole caisson, convenient for the later period using when make multiple 1 uniform stresseds of open caisson unit, avoid open caisson unit 1
Unbalance stress and cause the open caisson unit 1 of stress more weight more easy to damage.King-post 3 can be carried directly using cushion cap with supporting bridge
Etc. structures.
In the present embodiment, other contents not described are same as the previously described embodiments, therefore do not repeat.
It is above-described, it is only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form,
According to the technical essence of the invention, within the spirit and principles in the present invention, to the above embodiments any simply to repair
Change, equivalent replacement and improvement etc., fall within the scope of protection of the technical scheme of the present invention within.
Claims (5)
1. a kind of more open caisson clustering design methods, it is characterised in that:, installation in place respectively using several open caisson units, then make
With connection structure covering, it is mounted on above open caisson unit so that open caisson unit is connected as whole caisson.
2. a kind of more open caisson clustering design methods according to claim 1, it is characterised in that: the open caisson unit design
It is cylindrical or prismatic.
3. a kind of more open caisson clustering design methods according to claim 1, it is characterised in that: the open caisson unit presses battle array
Column are uniformly distributed.
4. a kind of more open caisson clustering design methods according to any one of claim 1-3, it is characterised in that: the company
Binding structure uses cushion cap.
5. a kind of more open caisson clustering design methods according to any one of claim 1-3, it is characterised in that: described is heavy
The quantity of well unit is 2-4.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910144579.1A CN109914457A (en) | 2019-02-27 | 2019-02-27 | A kind of more open caisson clustering design methods |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910144579.1A CN109914457A (en) | 2019-02-27 | 2019-02-27 | A kind of more open caisson clustering design methods |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110878558A (en) * | 2019-11-22 | 2020-03-13 | 中国水利水电第八工程局有限公司 | Large open caisson modular construction method |
| CN112144568A (en) * | 2020-09-18 | 2020-12-29 | 中铁大桥勘测设计院集团有限公司 | Step type open caisson foundation and construction method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635124A (en) * | 2012-04-23 | 2012-08-15 | 浙江省建工集团有限责任公司 | Construction method aiming to large open caisson in weak soil area |
| CN203238542U (en) * | 2013-04-26 | 2013-10-16 | 东南大学 | Suspension bridge anchorage foundation with split-type open caissons adopted |
| 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 |
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2019
- 2019-02-27 CN CN201910144579.1A patent/CN109914457A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635124A (en) * | 2012-04-23 | 2012-08-15 | 浙江省建工集团有限责任公司 | Construction method aiming to large open caisson in weak soil area |
| CN203238542U (en) * | 2013-04-26 | 2013-10-16 | 东南大学 | Suspension bridge anchorage foundation with split-type open caissons adopted |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110878558A (en) * | 2019-11-22 | 2020-03-13 | 中国水利水电第八工程局有限公司 | Large open caisson modular construction method |
| CN112144568A (en) * | 2020-09-18 | 2020-12-29 | 中铁大桥勘测设计院集团有限公司 | Step type open caisson foundation and construction method thereof |
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