CN209162824U - The more well foundations of major diameter steel reinforced concrete combinatorial cylinders distributing - Google Patents
The more well foundations of major diameter steel reinforced concrete combinatorial cylinders distributing Download PDFInfo
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- CN209162824U CN209162824U CN201821749282.5U CN201821749282U CN209162824U CN 209162824 U CN209162824 U CN 209162824U CN 201821749282 U CN201821749282 U CN 201821749282U CN 209162824 U CN209162824 U CN 209162824U
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- reinforced concrete
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Abstract
The utility model discloses the more well foundations of major diameter steel reinforced concrete combinatorial cylinders distributing, including multiple open caisson units, each open caisson unit is vertically arranged and includes steel reinforced concrete assembled tubes, prefabricated cover board and cushion cap, steel reinforced concrete assembled tubes include combinatorial cylinders and borehole wall concrete, combinatorial cylinders include outer cylinder, inner cylinder and borehole wall concrete, lower end in contact of the lower end of inner cylinder towards the bending of the lower end of outer cylinder and with outer cylinder, to make the lower end of steel reinforced concrete assembled tubes that caisson cutting edge be collectively formed, a loop material of inner cylinder lower part forms shear tenon towards inner cylinder internal protrusion；Prefabricated cover board is shelved on the top of steel reinforced concrete assembled tubes；Cushion cap is arranged on prefabricated cover board；The lower part of inner cylinder forms back cover by casting concrete.The utility model uses multiple open caisson unit dispersed combinations together, good integrity, and lateral rigidity is big, bearing capacity is high, and a variety of arrangements can be used in the upper structure type accepted as needed, steel reinforced concrete combinatorial cylinders, flexible arrangement, and can adapt to upper structure type.
Description
Technical field
The utility model belongs to bridge foundation engineering field, more particularly, to major diameter steel reinforced concrete combinatorial cylinders distributing
More well foundations.
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.Bridge infrastructure structure is built into
Originally the investment for typically constituting from bed rearrangement bridge 30% is an important factor for influencing bridge economic.
Now many long, big bridges are built on the anxious big rivers of the depth of water, stream or the sea of bad environments, often encounter water
It is deep it is relatively deep, wash away very big, very thick etc. problems of coating, be highly detrimental to bridge construction, the difficulty that basis is built is also bigger.At present
Existing large diameter borehole pile foundation or well foundation, apply the depth of water it is relatively deep, wash away inland river, the ocean of larger covering thickness
In environment, it is primarily present following problems:
1) high-rise pile cap Bored Pile Foundation, drift is big, and lateral rigidity is low, with Longspan Bridge in flow force, wave
Under the horizontal force actions such as power, anticollision power, generally require using extensive major diameter High-Rise Pile Cap Foundation, this High-Rise Pile Cap Foundation
Scale is big, long construction period, deficiency in economic performance.
2) whole caisson basis, good integrity, bearing capacity is big, but needs the works such as steel open caisson transportation by driving, accurate positioning, suck sediment subsidence
Sequence, working procedure is more, and the period is long, and construction risk is high, and is affected in marine environment by wave current power.
Utility model content
For existing large diameter borehole pile foundation or well foundation the depth of water it is relatively deep, wash away in larger, covering thickness
Using required a series of problems faced in river, marine environment, the utility model proposes a kind of bearing capacity height, good economy performance, apply
The fireballing bridge deepwater foundation form of work can be applied to the inland river of deep water thickness covering, in marine environment, can not only meet bridge
Foundation structure stress, economy and exploitativeness are also superior to currently used deep water foundation form.
To achieve the above object, according to the one aspect of the utility model, the dispersion of major diameter steel reinforced concrete combinatorial cylinders is provided
The more well foundations of formula, which is characterized in that including multiple open caisson units, each open caisson unit is vertically arranged and includes
Steel reinforced concrete assembled tubes, prefabricated cover board and cushion cap, wherein
The steel reinforced concrete assembled tubes include combinatorial cylinders and borehole wall concrete, and the combinatorial cylinders include outer cylinder and inner cylinder, institute
It states there are gap between outer cylinder and the inner cylinder and fills the borehole wall concrete, the lower end of the inner cylinder in the gap location
It is bent towards the lower end of the outer cylinder, to make the lower end of the steel reinforced concrete assembled tubes that caisson cutting edge be collectively formed, so as to open caisson unit
Designed elevation is sunk down into, a loop material of the inner cylinder lower part forms shear tenon towards inner cylinder internal protrusion；
The prefabricated cover board is shelved on the top of the steel reinforced concrete assembled tubes, so that the top of the steel reinforced concrete assembled tubes be sealed
Firmly；
The cushion cap is arranged on the prefabricated cover board, to be used to accept superstructure, wherein the superstructure is bridge
Tower or bridge pier；
The lower part of the inner cylinder forms back cover by casting concrete.
Preferably, the quantity of the open caisson unit is two be arranged side by side, the steel reinforced concrete combination of each open caisson unit
The side wall upper part of cylinder is formed with step by the thinning mode of wall thickness on inner wall, for accepting the prefabricated cover board.
Preferably, the quantity of the open caisson unit is four and their two open caisson units in rectangular layout, adjacent
Between linked together by binder, the side wall upper parts of the steel reinforced concrete assembled tubes of each open caisson unit side thinning by wall thickness
Formula is formed with step on inner wall, for accepting the prefabricated cover board.
Preferably, the position of these open caisson units is arranged in the following manner: centered on one of open caisson unit,
Other open caisson units are arranged circumferentially the surrounding in the open caisson unit at center；In addition, the steel reinforced concrete of these open caisson units combines
Cylinder accepts a prefabricated cover board jointly.
Preferably, the internal diameter of the inner cylinder is 8m~30m.
In general, it can obtain down the above technical solutions conceived by the present invention are compared with the prior art,
Column the utility model has the advantages that
1) the utility model uses multiple open caisson unit dispersed combinations together, and good integrity, lateral rigidity is big, bearing capacity
A variety of arrangements can be used in height, the upper structure type accepted as needed, steel reinforced concrete combinatorial cylinders, and arrangement is more flexible, and
And it can adapt to upper structure type.
2) the open caisson unit of the utility model uses mesoporous, bottomless combinatorial cylinders structure, according to the depth of water, geology at bridge site
Data and structure detailing requiments, can in dock integral assembling it is prefabricated, then by recycling at ship transportation by driving to bridge site
It founders again positioning, is hammered into shape using multi-shaker vibration and cylinder vibration is sink to designed elevation, Construction Operating Machinery, high degree of automation；
3) fill concrete forms steel reinforced concrete assembled tubes between the inner/outer tube of combinatorial cylinders, increases the overall stiffness of open caisson unit
And local stiffness.
4) the utility model provides the deep water foundation form of another economical rationality in bridge field for Bridge Design person, and
And have that bearing capacity high, basic small scale, construction cost is low, construction efficiency is high, safety is good, quality is easy to control, wind of constructing
Danger is low, speed of application is fast, the construction period is short, construction cost is low and good in economic efficiency advantage.
5) compared with pile foundation, this well foundation rigidity is big, cubic amount of concrete saves, anti-ship hits ability by force and does not need big
The interim construction auxiliary equipment such as the jacket of type；With whole large-scale well-sinking ratio, this well foundation is small, saves material, and
Construct convenient reliable, easy to process, lifting, transport, and the bridge location in-site installation construction time by wave current power influenced significantly
Reduce (key dimension relatively reduces, and wave current power can be relatively a little bit smaller), reduces difficulty of construction, reduce construction risk.
Detailed description of the invention
Fig. 1 a is the main view for the double-cylinder type well foundation that two open caisson units are formed；
Fig. 1 b is the side view of Fig. 1 a；
Fig. 1 c is the cross-sectional view in Fig. 1 a along line A-A；
Fig. 2 a is the main view for the four cartridge type well foundations that four open caisson units are formed；
Fig. 2 b is the side view of Fig. 2 a；
Fig. 2 c is the cross-sectional view in Fig. 2 a along line B-B；
Fig. 3 a is the main view for the more enclosed well foundations that multiple open caisson units are formed；
Fig. 3 b is more distribution schematic diagrams；
Fig. 3 c is the cross-sectional view in Fig. 3 a along line C-C.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.In addition, institute in the various embodiments of the present invention described below
The technical characteristic being related to can be combined with each other as long as they do not conflict with each other.
With reference to each attached drawing, the utility model provides the 21 more well foundations of distributing of major diameter steel reinforced concrete combinatorial cylinders, including
Multiple open caisson units 1, each open caisson unit 1 are vertically arranged and include steel reinforced concrete assembled tubes 2, prefabricated cover board 3 and holding
Platform 4, wherein
The steel reinforced concrete assembled tubes 2 include combinatorial cylinders 21 and borehole wall concrete 22, and the combinatorial cylinders 21 include outer cylinder 211
With inner cylinder 212, it is mixed that the borehole wall is filled there are gap between the outer cylinder 211 and the inner cylinder 212 and in the gap location
The lower end of solidifying soil 22, the inner cylinder 212 is bent towards the lower end of the outer cylinder 211, to keep the lower end of the steel reinforced concrete assembled tubes 2 total
With caisson cutting edge 23 is formed, so that open caisson unit 1 sinks down into designed elevation, a loop material of 212 lower part of inner cylinder is towards interior
For 212 internal protrusions of cylinder to form shear tenon 24, shear tenon 24 can increase the switching performance of the concrete of open caisson and back cover 6,
Increase its shearing strength.
The prefabricated cover board 3 is shelved on the top of the steel reinforced concrete assembled tubes 2, thus by the top of the steel reinforced concrete assembled tubes 2
It seals；
The cushion cap 4 is arranged on the prefabricated cover board 3, to be used to accept superstructure 5, wherein the superstructure 5
For bridge tower or bridge pier；
The lower part of the inner cylinder 212 forms back cover 6 by casting concrete.
Further, the quantity of the open caisson unit 1 is two be arranged side by side, the steel reinforced concrete group of each open caisson unit 1
The side wall upper part for closing cylinder 2 is formed with step 25 by the thinning mode of wall thickness on inner wall, for accepting the prefabricated cover board
3.With two open caisson units 1, it can be adapted for the bridge tower or pier footing of queen post, be correspondingly arranged with pier stud.
Further, the quantity of the open caisson unit 1 is four and their two open caisson units in rectangular layout, adjacent
It is linked together between 1 by binder, the side wall upper part of the steel reinforced concrete assembled tubes 2 of each open caisson unit 1 is thinning by wall thickness
Mode step 25 is formed on inner wall, with for accepting the prefabricated cover board 3.Using four of rectangle, can be adapted for
The pylon foundation of four-column type, is correspondingly arranged with pier stud.
Further, the position of these open caisson units 1 is arranged in the following manner: using one of open caisson unit 1 in
The heart, other open caisson units 1 are arranged circumferentially the surrounding in the open caisson unit 1 at center；In addition, the steel of these open caisson units 1
Mixed assembled tubes 2 accept a prefabricated cover board 3 jointly.Accepted in this way by a big prefabricated cover board 3 multiple bridge towers or
Bridge pier is arranged so and four individual bases links together, and improves the overall performance on basis.
Further, the internal diameter of the inner cylinder 212 is 8m~30m, can form the open caisson of major diameter in this way.
According to the other side of the utility model, it is more to additionally provide major diameter steel reinforced concrete 21 distributings of combinatorial cylinders
The construction method of well foundation, comprising the following steps:
1) the prefabricated formation combinatorial cylinders 21 of integral assembling are carried out to outer cylinder 211 and inner cylinder 212 in dock, it then will combination
At 21 transportation by driving to bridge site of cylinder, and sink to positioning to combinatorial cylinders 21 using crane ship, it then will combination using multi-shaker vibration hammer
The vibration of cylinder 21 is sink to designed elevation；
2) borehole wall concrete between the outer cylinder 211 of combinatorial cylinders 21 and inner cylinder 212 is poured by concrete ship waterborne
22；
3) soil in open caisson unit 1 is taken out to designed elevation；
4) scarfing cinder is carried out to 1 shaft bottom of open caisson unit, underwater concrete is then poured using vertical conduit method and forms the envelope
Bottom 6；
5) preform lid plate 3 is laid on steel reinforced concrete assembled tubes 2, then cast-in-place formation cushion cap 4.
Further, in step 3), grab used in water can be used according to different geological conditions and grab soil, hydraulic suction mud digging
The shoveling of suction mud is penetrated in native, waterpower punching, brill suction method suction mud takes soil or suctions method suction mud takes soil.
Together using multiple 1 dispersed combinations of open caisson unit, good integrity, lateral rigidity is big, bearing capacity for the utility model
A variety of arrangements can be used in height, 5 form of superstructure accepted as needed, steel reinforced concrete combinatorial cylinders 21.In addition, combinatorial cylinders
Fill concrete forms steel reinforced concrete assembled tubes 2 between 21 inner/outer tube 211, increases the overall stiffness and local stiffness of open caisson unit 1,
This is because local stiffness increases, and local stiffness increases between outer cylinder 211 and the inner cylinder 212 after fill concrete,
The rigidity on entire basis just increases.
As it will be easily appreciated by one skilled in the art that the above is only the preferred embodiment of the utility model only, not
To limit the utility model, any modification made within the spirit and principle of the present invention, equivalent replacement and change
Into etc., it should be included within the scope of protection of this utility model.
Claims (5)
1. the more well foundations of major diameter steel reinforced concrete combinatorial cylinders distributing, which is characterized in that each described including multiple open caisson units
Open caisson unit is vertically arranged and includes steel reinforced concrete assembled tubes, prefabricated cover board and cushion cap, wherein
The steel reinforced concrete assembled tubes include combinatorial cylinders and borehole wall concrete, and the combinatorial cylinders include outer cylinder and inner cylinder, described outer
The borehole wall concrete is filled there are gap between cylinder and the inner cylinder and in the gap location, and the lower end of the inner cylinder is towards institute
The lower end bending of outer cylinder is stated, to make the lower end of the steel reinforced concrete assembled tubes that caisson cutting edge be collectively formed, so as to the sinking of open caisson unit
To designed elevation, a loop material of the inner cylinder lower part forms shear tenon towards inner cylinder internal protrusion；
The prefabricated cover board is shelved on the top of the steel reinforced concrete assembled tubes, so that the top of the steel reinforced concrete assembled tubes be sealed；
The cushion cap is arranged on the prefabricated cover board, with for accepting superstructure, wherein the superstructure be bridge tower or
Bridge pier；
The lower part of the inner cylinder forms back cover by casting concrete.
2. the more well foundations of major diameter steel reinforced concrete combinatorial cylinders distributing according to claim 1, which is characterized in that described heavy
The quantity of well unit is two be arranged side by side, and the side wall upper part of the steel reinforced concrete assembled tubes of each open caisson unit is become by wall thickness
Thin mode is formed with step on inner wall, for accepting the prefabricated cover board.
3. the more well foundations of major diameter steel reinforced concrete combinatorial cylinders distributing according to claim 1, which is characterized in that described heavy
The quantity of well unit is four and they are in rectangular layout, is connected to one by binder between two adjacent open caisson units
It rises, the side wall upper part of the steel reinforced concrete assembled tubes of each open caisson unit is formed with platform by the thinning mode of wall thickness on inner wall
Rank, for accepting the prefabricated cover board.
4. the more well foundations of major diameter steel reinforced concrete combinatorial cylinders distributing according to claim 1, which is characterized in that these are heavy
The position of well unit is arranged in the following manner: centered on one of open caisson unit, other open caisson units are circumferentially equal
The surrounding of the even open caisson unit for being arranged in center；In addition, the steel reinforced concrete assembled tubes of these open caisson units accept jointly one it is described pre-
Cover board processed.
5. the more well foundations of major diameter steel reinforced concrete combinatorial cylinders distributing according to claim 1, which is characterized in that in described
The internal diameter of cylinder is 8m~30m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821749282.5U CN209162824U (en) | 2018-10-26 | 2018-10-26 | The more well foundations of major diameter steel reinforced concrete combinatorial cylinders distributing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821749282.5U CN209162824U (en) | 2018-10-26 | 2018-10-26 | The more well foundations of major diameter steel reinforced concrete combinatorial cylinders distributing |
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| CN209162824U true CN209162824U (en) | 2019-07-26 |
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ID=67335241
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821749282.5U Active CN209162824U (en) | 2018-10-26 | 2018-10-26 | The more well foundations of major diameter steel reinforced concrete combinatorial cylinders distributing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109403325A (en) * | 2018-10-26 | 2019-03-01 | 中铁第四勘察设计院集团有限公司 | The more well foundations of major diameter steel reinforced concrete combinatorial cylinders distributing and its construction method |
| CN110735394A (en) * | 2019-10-30 | 2020-01-31 | 中铁大桥勘测设计院集团有限公司 | Cable tower structure and construction method thereof |
-
2018
- 2018-10-26 CN CN201821749282.5U patent/CN209162824U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109403325A (en) * | 2018-10-26 | 2019-03-01 | 中铁第四勘察设计院集团有限公司 | The more well foundations of major diameter steel reinforced concrete combinatorial cylinders distributing and its construction method |
| CN109403325B (en) * | 2018-10-26 | 2024-05-17 | 中铁第四勘察设计院集团有限公司 | Large-diameter steel-concrete combined cylinder dispersed multi-open caisson foundation and construction method thereof |
| CN110735394A (en) * | 2019-10-30 | 2020-01-31 | 中铁大桥勘测设计院集团有限公司 | Cable tower structure and construction method thereof |
| CN110735394B (en) * | 2019-10-30 | 2021-08-10 | 中铁大桥勘测设计院集团有限公司 | Cable tower structure and construction method thereof |
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