CN206829167U - A kind of cast-in-place box beam bracket raft foundation with discharge orifice - Google Patents
A kind of cast-in-place box beam bracket raft foundation with discharge orifice Download PDFInfo
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- CN206829167U CN206829167U CN201720450017.6U CN201720450017U CN206829167U CN 206829167 U CN206829167 U CN 206829167U CN 201720450017 U CN201720450017 U CN 201720450017U CN 206829167 U CN206829167 U CN 206829167U
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- concrete
- leak conduit
- raft
- raft plate
- cast
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Abstract
The utility model discloses a kind of cast-in-place box beam bracket raft foundation with discharge orifice, the raft plate portion is deployed in river course, Bailey truss is provided with above raft plate, raft plate includes pouring into cubical concrete structure basis and a plurality of leak conduit being parallel to each other therethrough；The leak conduit is the RCPIII level pipes of single or more series connection, and fixed steel bars are provided between adjacent leak conduit；The concrete structure basis is C30 concrete, and thickness is not less than 3m, including the concrete top layer above leak conduit, the concrete base below leak conduit, the packed layer between leak conduit；For the fixed steel bars perpendicular to raft plate, bottom is located at concrete base, and top connects the base of Bailey truss.Over-water construction is changed into land construction by the utility model, and speed of application is fast, safe；Raft plate sectional after the completion of bridge construction is all removed, small to the pollution of river；Reduce steel input, construction cost is low.
Description
Technical field
A kind of cast-in-place box beam bracket raft of raft plate with discharge orifice is the utility model is related to, is showed suitable for shallow water river channel
Pour box beam or other cast-in-situ concrete member bracket basis.
Background technology
It is more using few fulcrum steel pipe Bailey truss in conventional shallow water river channel cross a river section support cast-in-place box girder construction.Few branch
Point steel pipe Bailey truss consumption steel material is big, and construction costs is high.Rack construction uses halieutics, and steel-pipe pile beats that to pull out speed slow, and
Being constructed in pier stud, completion after-poppet is larger across Operation on pier top difficulty, and the duration is longer；Steel-pipe pile, which is set, is not suitable for solution cavity and rock
Layer region, the single-point stress of steel-pipe pile easily cause solution cavity to puncture, difficulty are set in formation area；Steel-pipe pile spreading, shaped steel peace
Dress, Bailey beam installation etc. are operation at sea, and potential safety hazard is larger.In the case of under-clearance is less, steel-pipe pile can not be pulled out,
It is only capable of removing using imderwater cutting, it is big to the pollution of river.
Utility model content
The purpose of this utility model is a kind of cast-in-place box beam bracket raft foundation with discharge orifice of design, the raft plate portion administration
Be provided with Bailey truss in river course, above raft plate, raft plate include pouring into cubical concrete structure basis with therethrough
The a plurality of leak conduit being parallel to each other；The leak conduit be single or more series connection RCPIII level pipes, adjacent leak-off pipe
Fixed steel bars are provided between road；The concrete structure basis is C30 concrete, and thickness is not less than 3m, including positioned at leak-off pipe
Concrete top layer above road, the concrete base below leak conduit, the packed layer between leak conduit；It is described
For fixed steel bars perpendicular to raft plate, bottom is located at concrete base, and top connects the base of Bailey truss.
Leak conduit made of for being connected by more RCPIII levels pipes, RCP pipes junction carry out waterproof sealing processing；
RCP pipes caliber is not less than 1m.
The bearing of trend of leak conduit is consistent with streamflow direction.
It is packed layer immediately below the deployed position of Bailey truss.
The beneficial effects of the utility model are：The technology becomes over-water construction and constructed into land, and construction operation speed is fast, construction
It is safe；Raft plate sectional after the completion of bridge construction is all removed, small to the pollution of river；Reduce steel-pipe pile, shaped steel, shellfish
The steel such as thunder are put into, and construction cost is low.In shallow water river channel (in depth of water 50m) construction cast-in-situ box girder or other cast-in-situ concrete members
With preferable application value.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Wherein, 1. concrete structures basis；2. leak conduit；
3. Bailey truss；4. concrete top layer；
5. concrete base；6. packed layer；
7. fixed steel bars.
Embodiment
Technology is carried out to a kind of cast-in-place box beam bracket raft foundation with discharge orifice of the present utility model referring to the drawings
Explanation.
As shown in figure 1, a kind of cast-in-place box beam bracket raft foundation with discharge orifice, the raft plate portion are deployed in river course, raft
Be provided with Bailey truss 3 above plate, raft plate includes pouring into cubical concrete structure basis 1 and therethrough a plurality of mutual
Parallel leak conduit 2；The leak conduit 2 is the RCPIII level pipes of single or more series connection, is set between adjacent leak conduit 2
There are fixed steel bars 7；The concrete structure basis 1 is C30 concrete, and thickness is not less than 3m, including above leak conduit 2
Concrete top layer 4, the concrete base 5 positioned at the lower section of leak conduit 2, the packed layer 6 between leak conduit 2；It is described
For fixed steel bars 7 perpendicular to raft plate, bottom is located at concrete base 5, and top connects the base of Bailey truss 3.
Leak conduit 2 made of for being connected by more RCPIII levels pipes, RCP pipes junction carry out waterproof sealing processing；
RCP pipes caliber is not less than 1m.
The bearing of trend of leak conduit 2 is consistent with streamflow direction.
It is packed layer 6 immediately below the deployed position of Bailey truss 3.
Embodiment one：
Fig. 1 is the utility model band hardened composition of discharge orifice raft, and it is constructed mainly is let out by raft plate and basic infrastructure are embedded
Flow tube road 2 forms.Suitable for shallow water river channel (in depth of water 5m) cast-in-situ box girder or other cast-in-situ concrete member bracket basis.
Raft plate is construction in layer, and raft plate construction process is as follows after basement process：River course work surface construction, basement process,
Cushion construction, raft plate substructure construction, pipeline connection installation, raft plate Superstructure Construction.
River course work surface construction：Raft plate construction working face can be divided into 2 classes according to shallow water river channel (in depth of water 5m) condition：It is a kind of
For the river that can stop temporarily, construction uses earth cofferdam river closure mode to provide the scope of operation for raft plate；One kind for can not dried-up riverway,
Using bevelling mode, half range river course construction raft plate is first closed, re-closed half range in addition carries out raft plate construction after the region water flowing, tears open
Except equally using bevelling mode, it is ensured that river course does not stop.
Basement process：Raft plate bottom must have enough bearing capacities to ensure not occur after loading sinking outside specification allowed band
Drop, desilting can be taken directly to be constructed on top raft plate after being compacted in the case of riverbed geological conditions is preferable；It is more in riverbed sludge
It can take to change and fill out or packing sedimentation by throwing stones mode ensures there are enough foundation bearing capacities.
Cushion construction：Basement process after-pouring 10cm concrete cushions are as raft plate bed course.
Raft plate substructure construction：Constructed when raft plate substructure is relatively thin using one-time-concreting, according to its thickness when thicker
Carry out placement layer by layer construction.
Pipe installing and connection：Pipeline uses RCPIII level pipes, and connected mode is flexible connection；One is reserved between pipeline
Fixed gap facilitates later stage concreting and vibrated, and Pipe installing precision must meet related specifications requirement, tube coupling interface section palpus
Ensured using water-proofing treatment water-tight.
Raft plate Superstructure Construction：Binding structure layer distributing bar after the completion of Pipe installing, formwork pour raft plate top knot
Structure is simultaneously conserved.
After the completion of above-mentioned steps, you can set up Bailey truss 3 in raft plate upper surface.
Claims (4)
1. a kind of cast-in-place box beam bracket raft foundation with discharge orifice, it is characterised in that the raft plate portion is deployed in river course, raft plate
Top is provided with Bailey truss (3), and raft plate includes pouring into cubical concrete structure basic (1) and a plurality of phase therethrough
Mutually parallel leak conduit (2)；The leak conduit (2) be single or more series connection RCPIII level pipes, adjacent leak conduit
(2) fixed steel bars (7) are provided between；The concrete structure basic (1) is C30 concrete, and thickness is not less than 3m, including positioned at
Concrete top layer (4) above leak conduit (2), the concrete base (5) below leak conduit (2), positioned at leak-off pipe
Packed layer (6) between road (2)；For the fixed steel bars (7) perpendicular to raft plate, bottom is located at concrete base (5), top connection
The base of Bailey truss (3).
2. a kind of cast-in-place box beam bracket raft foundation with discharge orifice as claimed in claim 1, it is characterised in that for by more
Leak conduit (2) made of the series connection of root RCPIII levels pipe, RCP pipes junction carry out waterproof sealing processing；RCP pipe calibers are not less than
1m。
A kind of 3. cast-in-place box beam bracket raft foundation with discharge orifice as claimed in claim 1, it is characterised in that the aerial drainage
The bearing of trend of pipeline (2) is consistent with streamflow direction.
A kind of 4. cast-in-place box beam bracket raft foundation with discharge orifice as claimed in claim 1, it is characterised in that the shellfish thunder
It is packed layer (6) immediately below the deployed position of support (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720450017.6U CN206829167U (en) | 2017-04-27 | 2017-04-27 | A kind of cast-in-place box beam bracket raft foundation with discharge orifice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720450017.6U CN206829167U (en) | 2017-04-27 | 2017-04-27 | A kind of cast-in-place box beam bracket raft foundation with discharge orifice |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206829167U true CN206829167U (en) | 2018-01-02 |
Family
ID=60768908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720450017.6U Expired - Fee Related CN206829167U (en) | 2017-04-27 | 2017-04-27 | A kind of cast-in-place box beam bracket raft foundation with discharge orifice |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206829167U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112064585A (en) * | 2020-08-14 | 2020-12-11 | 中铁大桥局集团有限公司 | Supporting structure on soft foundation of drainage channel and installation method thereof |
| CN114319069A (en) * | 2022-02-23 | 2022-04-12 | 中国建筑土木建设有限公司 | Large-span steel trestle structure and construction method thereof |
-
2017
- 2017-04-27 CN CN201720450017.6U patent/CN206829167U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112064585A (en) * | 2020-08-14 | 2020-12-11 | 中铁大桥局集团有限公司 | Supporting structure on soft foundation of drainage channel and installation method thereof |
| CN114319069A (en) * | 2022-02-23 | 2022-04-12 | 中国建筑土木建设有限公司 | Large-span steel trestle structure and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180102 Termination date: 20180427 |