CN209323550U - Suitable for the inverted T shaped precast caisson of deep water drift net area or shallow overburden basis - Google Patents
Suitable for the inverted T shaped precast caisson of deep water drift net area or shallow overburden basis Download PDFInfo
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- CN209323550U CN209323550U CN201822000772.1U CN201822000772U CN209323550U CN 209323550 U CN209323550 U CN 209323550U CN 201822000772 U CN201822000772 U CN 201822000772U CN 209323550 U CN209323550 U CN 209323550U
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Abstract
The utility model discloses the inverted T shaped precast caisson bases for being suitable for deep water drift net area or shallow overburden, including cabinet, the first partition wall, cylinder, cover board and cushion cap, the outer edge of the cross section of the cabinet is that a rectangle rounded corner is formed, and cabinet is internally provided with two the second partition walls；The first partition wall described in a row is respectively set between every second partition wall and the inner wall of the cabinet；The outer edge of the cross section of the cylinder is formed for the strip hole that both ends are circular arc, or is formed for a rectangle rounded corner；The cover board is accepted on the top of the cylinder, and the cover board accepts the cushion cap.The utility model uses inverted T shaped caisset form, water flow adaptability is good, the flow force and wave force that structure is born are small, steel open caisson, concrete open caisson or steel reinforced concrete combination open caisson can be used in caisson foundation, and caisson lower layer uses larger-size body structure, and vertically and horizontally the first partition wall is set, caisson antidumping and stability against slope are good, and base stress is small.
Description
Technical field
The utility model belongs to bridge field, more particularly, to precast caisson basis.
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 the difficulties such as the deeper depth of water, naked petrographic province and shallow overburden area
Topic, is highly detrimental to bridge construction, and the difficulty that basis is built is also bigger.The construction cost of bridge substructure typically constitutes from bed rearrangement bridge
The investment of beam 30% is an important factor for influencing bridge economic.
Currently used base form mainly has pile foundation and well foundation, and there are following on bridge deepwater foundation is applied
Problem:
1) naked petrographic province pile foundation scheme, drilling platform setting is difficult, water flow bad adaptability, flow force that structure is born and
Wave force is big.
2) well foundation structure size is big, bears biggish flow force and wave force, and working procedure is more, and complex process is made
Valence is high.
Utility model content
Aiming at the above defects or improvement requirements of the prior art, the utility model is provided suitable for deep water drift net area or shallow
Coating inverted T shaped precast caisson basis, can not only meet bridge foundation structure stress, economy and exploitativeness also superior to
Currently used base form.
To achieve the above object, it according to the one aspect of the utility model, provides suitable for deep water drift net area or shallowly covers
The inverted T shaped precast caisson basis of cap rock, which is characterized in that including cabinet, the first partition wall, cylinder, cover board and cushion cap, wherein
The cabinet, the first partition wall and cylinder are vertically arranged；
The outer edge of the cross section of the cabinet is that a rectangle rounded corner is formed, and cabinet is internally provided with two
Second partition wall, the length direction of every second partition wall cross section is consistent with the length direction of the cabinet cross section, and
And the both ends of every second partition wall are abutted with the inner wall of the cabinet；
First partition wall is provided with two rows, and is respectively set between every second partition wall and the inner wall of the cabinet
The both ends of first partition wall described in one row, each first partition wall are contacted with the inner wall of cabinet and second partition wall respectively, and
And each first partition wall is each perpendicular to the second partition wall setting；
The cylinder is hollow, and the outer edge of the cross section of the cylinder is formed for the strip hole that both ends are circular arc, or
It is formed for a rectangle rounded corner, and the vertical consistency of the longitudinal direction of the cylinder cross section and the cabinet cross section, it is described
Cylinder is seated on two second partition walls of the cabinet, is accepted jointly by two second partition walls；
The cross-sectional area of the cabinet is greater than the cross-sectional area of the cylinder, and the cabinet and the cylinder
Vertical centerline is collinear；
The cover board is accepted on the top of the cylinder, and the cover board accepts the cushion cap.
Preferably, the joint of each first partition wall and the cabinet carries out chamfering setting.
Preferably, the contact position of each first partition wall and second partition wall carries out chamfering setting.
Preferably, the thickness of second partition wall is identical as the thickness of the cylinder, and the inner wall of the cylinder
Straight portion is aligned with the side of second partition wall.
Preferably, the joint of second partition wall and the cabinet carries out chamfering setting.
Preferably, the top of the inboard wall of cylinder is formed with step by the thinning mode of wall thickness, with described for accepting
Cover board.
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 up-small and down-big inverted T-type structure form, and water flow adaptability is good, the water flow that structure is born
Power and wave force are small, and lower part uses larger-size body structure, and is provided with the partition wall of vertical and horizontal, precast caisson
The antidumping and stability against slope on basis are good, and base stress is small.
2) the top cylinder of the utility model can be determined according to superstructure bridge pier and bridge tower form, using with rounded corner
Rectangle or nose circle shape, it is adaptable to upper structure type.
3) top of the utility model is provided with entity section suspended deck structure, and superstructure load is transferred to precast caisson base
Plinth, and can be used as the operation platform of superstructure.
4) local scouring depth of the utility model is small, can be reduced basic scale, reduces construction investment, and speed of application
Fastly, construction risk is low.
Detailed description of the invention
Fig. 1 is the elevation in the utility model；
Fig. 2 is the cross-sectional view of the utility model middle column body；
Fig. 3 is the side view in the utility model；
Fig. 4 is the schematic top plan view of the utility model.
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.
As shown in Figure 1 to 4, suitable for the inverted T shaped precast caisson of deep water drift net area or shallow overburden basis, precast caisson
Steel open caisson, concrete open caisson or steel reinforced concrete combination open caisson can be used in basis comprising cabinet 1, the first partition wall 2, cylinder 3,4 and of cover board
Cushion cap 5, wherein
The cabinet 1, the first partition wall 2 and cylinder 3 are vertically arranged；
The outer edge of the cross section of the cabinet 1 is that a rectangle rounded corner is formed, and cabinet 1 is internally provided with two
The second partition wall of item 6, length direction one of the length direction of every 6 cross section of the second partition wall with 1 cross section of cabinet
It causes, and the both ends of every second partition wall 6 are abutted with the inner wall of the cabinet 1；
First partition wall 2 is provided with two rows, and between every second partition wall 6 and the inner wall of the cabinet 1 respectively
First partition wall 2 described in one row is set, the both ends of each first partition wall 2 respectively with the inner wall of cabinet 1 and second partition wall 6
Contact, and each first partition wall 2 is each perpendicular to second partition wall 6 and is arranged；
The cylinder 3 is hollow, and the outer edge of the cross section of the cylinder 3 is formed for the strip hole that both ends are circular arc, or
Person is formed for a rectangle rounded corner, and the vertical consistency of the longitudinal direction of 3 cross section of the cylinder and 1 cross section of cabinet,
The cylinder 3 is seated on two second partition walls 6 of the cabinet 1, is accepted jointly by two second partition walls 6；
The cross-sectional area of the cabinet 1 is greater than the cross-sectional area of the cylinder 3, so that the precast caisson base
Plinth is integrally in inverted T shaped, and the vertical centerline of the cabinet 1 and the cylinder 3 is collinear
The cover board 4 is accepted on the top of the cylinder 3, and the cover board 4 accepts the cushion cap 5.
Further, the joint of each first partition wall 2 and the cabinet 1 carries out chamfering setting, prevents cusp stress
It concentrates.
Further, the contact position of each first partition wall 2 and second partition wall 6 carries out chamfering setting.
Further, the thickness of second partition wall 6 is identical as the thickness of the cylinder 3, and the inner wall of the cylinder 3
Straight portion be aligned with the side of second partition wall 6, the better support cylinder 3 of the second partition wall 6 can be allowed in this way, cylinder 3
It is less likely to occur to misplace, and manufactures also more convenient.
Further, the joint of second partition wall 6 and the cabinet 1 carries out chamfering setting, can prevent cusp in this way
Stress is concentrated.
Further, the top of 3 inner wall of cylinder is formed with step by the thinning mode of wall thickness, with described for accepting
Cover board 4.
According to the other side of the utility model, described deep water drift net area or the shallow overburden of being suitable for is additionally provided
The construction method on inverted T shaped precast caisson basis, which comprises the following steps:
1) underwater demolition construction is carried out to the basis instrument area of naked petrographic province or shallow overburden, and substrate is carried out using dredger
Cleaning and leveling；
2) cylinder 3, cabinet 1, the first partition wall 2 and the second partition wall 6 are carried out entirety to be manufactured, then transportation by driving to bridge location；
3) it is positioned using station keeping ship or anchoring pile anchorage positioning system, inverted T-shaped precast caisson basis is then filled the water into lower calmness
Bed；
4) prefabricated cover board 4, and the also concrete perfusion between the first partition wall 2 are set on inverted T-shaped precast caisson basis top；
5) concrete perfusion forms cushion cap 5 on cover board 4.
Further, it after forming cushion cap 5, then protects metalling is backfilled around the foundation pit on precast caisson basis, to protect
Protect the precast caisson basis.
The utility model uses up-small and down-big inverted T-type structure form, and water flow adaptability is good, the flow force that structure is born
And wave force is small, cylinder 3 uses round end type section form, and uses up-small and down-big inverted T-shaped form, reduces top to water flow
Barrier effect, and lower part uses larger-size 1 structure of cabinet, and is provided with the partition wall of vertical and horizontal, and partition wall mainly subtracts
Few cabinet 1 and the vertical and horizontal effective span of cylinder 3, so that structure stress and local stability are improved, precast caisson base
The antidumping of plinth and stability against slope are good, and base stress is small.
The top cylinder 3 of the utility model can be determined according to superstructure bridge pier and bridge tower form, use band rounded corner
Rectangle or nose circle shape, it is adaptable to upper structure type, because of the generally rectangular cross-section section form of superstructure or distal end
It is suitable effectively to carry out top and the bottom structure using the rectangle with rounded corner or the basic section form of nose circle shape for tee section form
It connects.
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 (6)
1. being suitable for the inverted T shaped precast caisson basis of deep water drift net area or shallow overburden, which is characterized in that including cabinet, first
Partition wall, cylinder, cover board and cushion cap, wherein
The cabinet, the first partition wall and cylinder are vertically arranged；
The outer edge of the cross section of the cabinet is that a rectangle rounded corner is formed, and cabinet is internally provided with two second
Partition wall, the length direction of every second partition wall cross section is consistent with the length direction of the cabinet cross section, and every
The both ends of the second partition wall of item are abutted with the inner wall of the cabinet；
First partition wall is provided with two rows, and a row is respectively set between every second partition wall and the inner wall of the cabinet
The both ends of first partition wall, each first partition wall are contacted with the inner wall of cabinet and second partition wall respectively, and every
A first partition wall is each perpendicular to the second partition wall setting；
The cylinder is hollow, and the outer edge of the cross section of the cylinder is formed for the strip hole that both ends are circular arc, or is one
Rectangle rounded corner is formed, and the vertical consistency of the longitudinal direction of the cylinder cross section and the cabinet cross section, the cylinder
It is seated on two second partition walls of the cabinet, is accepted jointly by two second partition walls；
The cross-sectional area of the cabinet is greater than the cross-sectional area of the cylinder, and the cabinet and the cylinder is vertical
Center line is collinear；
The cover board is accepted on the top of the cylinder, and the cover board accepts the cushion cap.
2. according to claim 1 suitable for the inverted T shaped precast caisson of deep water drift net area or shallow overburden basis, feature
It is, the joint of each first partition wall and the cabinet carries out chamfering setting.
3. according to claim 1 suitable for the inverted T shaped precast caisson of deep water drift net area or shallow overburden basis, feature
It is, the contact position of each first partition wall and second partition wall carries out chamfering setting.
4. according to claim 1 suitable for the inverted T shaped precast caisson of deep water drift net area or shallow overburden basis, feature
Be, the thickness of second partition wall is identical as the thickness of the cylinder, and the straight portion of the inner wall of the cylinder with
The side of second partition wall is aligned.
5. according to claim 1 suitable for the inverted T shaped precast caisson of deep water drift net area or shallow overburden basis, feature
It is, the joint of second partition wall and the cabinet carries out chamfering setting.
6. according to claim 1 suitable for the inverted T shaped precast caisson of deep water drift net area or shallow overburden basis, feature
It is, the top of the inboard wall of cylinder is formed with step by the thinning mode of wall thickness, for accepting the cover board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822000772.1U CN209323550U (en) | 2018-11-30 | 2018-11-30 | Suitable for the inverted T shaped precast caisson of deep water drift net area or shallow overburden basis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822000772.1U CN209323550U (en) | 2018-11-30 | 2018-11-30 | Suitable for the inverted T shaped precast caisson of deep water drift net area or shallow overburden basis |
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| CN209323550U true CN209323550U (en) | 2019-08-30 |
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| CN201822000772.1U Active CN209323550U (en) | 2018-11-30 | 2018-11-30 | Suitable for the inverted T shaped precast caisson of deep water drift net area or shallow overburden basis |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440796A (en) * | 2018-11-30 | 2019-03-08 | 中铁第四勘察设计院集团有限公司 | Suitable for the inverted T shaped precast caisson of deep water drift net area or shallow overburden basis and its construction method |
-
2018
- 2018-11-30 CN CN201822000772.1U patent/CN209323550U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440796A (en) * | 2018-11-30 | 2019-03-08 | 中铁第四勘察设计院集团有限公司 | Suitable for the inverted T shaped precast caisson of deep water drift net area or shallow overburden basis and its construction method |
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