CN107059909A - A kind of bridge foundation and substructure construction method - Google Patents
A kind of bridge foundation and substructure construction method Download PDFInfo
- Publication number
- CN107059909A CN107059909A CN201710450754.0A CN201710450754A CN107059909A CN 107059909 A CN107059909 A CN 107059909A CN 201710450754 A CN201710450754 A CN 201710450754A CN 107059909 A CN107059909 A CN 107059909A
- Authority
- CN
- China
- Prior art keywords
- reinforcing bar
- cushion cap
- pier shaft
- cut
- pier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
Abstract
A kind of bridge foundation and substructure construction method.It includes making drilled pile；Twice annular is carried out to cover to reinforcement using cutting machine in the designed elevation position of stake top and reinforcing bar apical position to cut, and reinforcing bar is completely exfoliated with concrete；Cushion cap steel reinforcement cage is made, then sizing steel mold is fixed at the top of cushion cap steel reinforcement cage；Pier shaft mask reinforcing bar is set, cushion cap is made；Ring cutting is carried out in sizing steel mold inside edge, dabbing processing is then carried out；The steps such as pier shaft are made.Effect of the present invention：Bicyclic cutting process ensure that the height and protective layer for going deep into cushion cap part pile foundation at stake top, so as to ensure that the integrality of pile foundation.It is bicyclic cut after first expose reinforcing bar, it is ensured that reinforcing bar is not damaged when stake top is cut, the anchor connection quality of pile crown quality and cushion cap and drilled pile is effectively ensured that.The omission of artificial assembling reinforcement can be avoided using sizing steel mold, reinforcing bar sizing efficiency of construction is high, shortens the duration, it is more convenient to construct, and can reach more preferable construction quality and effect.
Description
Technical field
The invention belongs to bridge structure construction method technical field, more particularly to a kind of bridge foundation and substructure are applied
Work method.
Background technology
At present, traditional prestressed concrete continuous beam is main by drilled pile, cushion cap, pier shaft, bearing and continuous beam group
Into wherein pier shaft belongs to substructure, and drilled pile and cushion cap belong to basis, and bearing and continuous beam then belong to superstructure.Its
In the basis commonly used and the construction method of substructure be that drilled pile is made in ground by workmen first, then in stake top
Cushion cap foundation ditch is excavated in the ground in outside and cushion cap template is installed, afterwards crushed stake top to expose the reinforcing bar at the position, then
Above-mentioned stake top reinforcing bar is banded together with cushion cap steel reinforcement cage bottom while cushion cap steel reinforcement cage is made in cushion cap template, afterwards
Pier shaft mask reinforcing bar lower end is banded in cushion cap steel reinforcement cage top, then in cushion cap template casting concrete and cushion cap is made, so
The cushion cap top surface on the inside of pier shaft mask reinforcing bar is progress dabbing processing at pier shaft to be placed afterwards, afterwards in pier shaft mask reinforcing bar
Side ties up pier shaft steel reinforcement cage and sets pier body formwork in pier shaft mask reinforcing bar lateral branch, finally in pier body formwork casting concrete and
Pier shaft is made, bridge foundation and substructure construction process is thus completed.But there is following point in above-mentioned construction method：1st, crush
Generally carried out during stake top by workmen using pneumatic pick, because the reinforcing bar at stake top is hidden in outside cover to reinforcement
It is interior, thus the careless slightly reinforcing bar for being just easy to damage at this, but also the integrality of stake top structure can be destroyed, so that stake top
Absolute altitude can not meet design requirement.Used when the 2nd, tying up pier shaft mask reinforcing bar and binding method, reinforcing bar during reinforcing bar colligation is positioned manually
Quantity, bar spacing fully rely on workmen's control, therefore bothersome laborious, and there is likely to be omission, and thus having can
Star fracture can be produced on the surface of pier shaft and influence the quality of whole bridge, it can be seen that this method has not caught up with construction
The requirement of development；3rd, dabbing is carried out using manual type, and dabbing depth can be different when workmen is different, entirely by rule of thumb,
There is no control device, so the requirement of depth can not be met, height is concavo-convex inconsistent, and is easy to beyond defined pier shaft root
Portion's physical dimension.
The content of the invention
In order to solve the above problems, it is an object of the invention to provide a kind of bridge foundation and substructure construction method.
In order to achieve the above object, the bridge foundation and substructure construction method that the present invention is provided include carrying out in order
The following steps：
1) drilled pile is made in ground by workmen first, cushion cap foundation ditch is then excavated in the ground on the outside of stake top
And install cushion cap template；
2) bipassage ring is carried out to cover to reinforcement using cutting machine in the designed elevation position of stake top and reinforcing bar apical position
Shape is cut, and depth of cut is the thickness of cover to reinforcement, then protects the reinforcing bar within the depth of cut between ring cutting line
Layer is removed, and thus makes reinforcing bar to exposing outside, and then carries out artificial to all concrete more than designed elevation position using pneumatic pick
Abolish, reinforcing bar is completely exfoliated with concrete, the surface of last manual cleaning stake top；
3) by the reinforcing bar in above-mentioned stake top and cushion cap steel reinforcement cage bottom while making cushion cap steel reinforcement cage in cushion cap template
Band together, the sizing steel mold customized in advance according to pier shaft mask rebar sizes and camber line is then fixed on cushion cap reinforcing bar
At bridge pier to be placed at the top of cage；Described sizing steel mold is annular slab, shape and the lateral cross section outer wheels of pier shaft lower end
Wide identical, interval is formed with multiple necks inside edge, and the spacing and the pier shaft mask reinforcing bar of design requirement of neck
Spacing is identical；
4) a pier shaft mask reinforcing bar is inserted in each neck, and the lower end of pier shaft mask reinforcing bar is banded in pile cap steel
Muscle cage top, then in cushion cap template casting concrete and cushion cap is made；
5) carry out annular together in the inside edge of the top surface edge sizing steel mold of cushion cap using cutting machine to cut, Ran Hou
Dabbing processing is carried out in the annular region；
6) pier shaft steel reinforcement cage is tied up on the inside of pier shaft mask reinforcing bar and pier body formwork is set in pier shaft mask reinforcing bar lateral branch, most
Afterwards in pier body formwork casting concrete and pier shaft is made, thus complete bridge foundation and substructure construction process.
In step 3) in, the diameter of described neck is equal to the diameter of pier shaft mask reinforcing bar.
In step 5) in, described depth of cut is 2cm, and dabbing depth is consistent with depth of cut.
The bridge foundation and substructure construction method that the present invention is provided have the advantages that：
1st, bicyclic cutting process ensure that the height and protective layer for going deep into cushion cap part pile foundation at stake top, so as to ensure that pile foundation
Integrality.It is bicyclic cut after first expose reinforcing bar, it is ensured that reinforcing bar is not damaged when stake top is cut, effectively ensure that pile crown quality and
The anchor connection quality of cushion cap and drilled pile.
2nd, the omission of artificial assembling reinforcement can be avoided using sizing steel mold, reinforcing bar sizing efficiency of construction is high, shortens work
Phase, it is more convenient to construct, and can reach more preferable construction quality and effect.
3rd, workmen need to only be carried out in the inside of ring cutting line by ring cutting depth during dabbing, therefore, it is possible to ensure dabbing scope
Accurately.
Brief description of the drawings
Structural facades during stake top ring cutting when Fig. 1 is the bridge foundation and substructure construction method that are provided using the present invention
Figure.
Structure is overlooked during stake top ring cutting when Fig. 2 is the bridge foundation and substructure construction method that are provided using the present invention
Figure.
The sizing set when Fig. 3 is the bridge foundation and substructure construction method that are provided using the present invention in cushion cap top surface
Steel positioner structure top view.
The sizing set when Fig. 4 is the bridge foundation and substructure construction method that are provided using the present invention in cushion cap top surface
Steel positioner structure front view.
Carried out when Fig. 5 is the bridge foundation and substructure construction method that are provided using the present invention on the inside of sizing steel mold
Dabbing processing procedure top view.
Embodiment
The bridge foundation and substructure construction method provided below in conjunction with the accompanying drawings with specific embodiment the present invention is carried out
Detailed description.
As Figure 1-Figure 5, the bridge foundation and substructure construction method that the present invention is provided include what is carried out in order
The following steps：
1) drilled pile is made in ground by workmen first, cushion cap foundation ditch is then excavated in the ground on the outside of stake top
And install cushion cap template；
2) cutting machine is used to carry out two to cover to reinforcement 2 in the designed elevation position A and reinforcing bar apical position B of stake top 1
Road annular cutting, depth of cut is the thickness of cover to reinforcement 2, then by the reinforcing bar within the depth of cut between ring cutting line
Protective layer 2 is removed, and thus makes reinforcing bar 3 to exposing outside, then real to more than designed elevation position A all concrete using pneumatic pick
Pedestrian's work is abolished, and reinforcing bar 3 and concrete are completely exfoliated, the surface of last manual cleaning stake top 1；
3) by under the reinforcing bar 3 in above-mentioned stake top 1 and cushion cap steel reinforcement cage while making cushion cap steel reinforcement cage in cushion cap template
Portion is banded together, and the sizing steel mold 4 customized in advance according to pier shaft mask rebar sizes and camber line then is fixed on into cushion cap
At bridge pier to be placed at the top of steel reinforcement cage；Described sizing steel mold 4 is outside annular slab, the lateral cross section of shape and pier shaft lower end
Contouring is identical, and interval is formed with multiple necks 5, and the spacing and the pier shaft mask of design requirement of neck 5 inside edge
The spacing of reinforcing bar 6 is identical, while the diameter of neck 5 is equal to the diameter of pier shaft mask reinforcing bar 6；
4) a piece pier shaft mask reinforcing bar 6 of insertion in each neck 5, and the lower end of pier shaft mask reinforcing bar 6 is banded in held
Platform steel reinforcement cage top, then in cushion cap template casting concrete and cushion cap 7 is made；
5) carry out annular together in the inside edge of the top surface edge sizing steel mold 4 of cushion cap 7 using cutting machine to cut, cutting
Depth is 2cm, and dabbing processing is then carried out in the annular region, and dabbing depth is consistent with depth of cut；
6) pier shaft steel reinforcement cage is tied up on the inside of pier shaft mask reinforcing bar and pier body formwork is set in pier shaft mask reinforcing bar lateral branch, most
Afterwards in pier body formwork casting concrete and pier shaft is made, thus complete bridge foundation and substructure construction process.
Claims (3)
1. a kind of bridge foundation and substructure construction method, it is characterised in that：Described bridge foundation and substructure construction
Method includes the following steps carried out in order：
1) drilled pile is made in ground by workmen first, cushion cap foundation ditch is then excavated in the ground on the outside of stake top and is propped up
If cushion cap template；
2) cover to reinforcement (2) is entered using cutting machine in the designed elevation position (A) of stake top (1) and reinforcing bar apical position (B)
The annular cutting of row twice, depth of cut is the thickness of cover to reinforcement (2), then will be within depth of cut between ring cutting line
Cover to reinforcement (2) remove, thus make reinforcing bar (3) to exposing outside, then using pneumatic pick to designed elevation position (A) more than
All concrete are carried out and manually abolished, and reinforcing bar (3) are completely exfoliated with concrete, the surface of last manual cleaning stake top (1)；
3) by under the reinforcing bar (3) in above-mentioned stake top (1) and cushion cap steel reinforcement cage while making cushion cap steel reinforcement cage in cushion cap template
Portion is banded together, and is then fixed on the sizing steel mold (4) customized in advance according to pier shaft mask rebar sizes and camber line and is held
At bridge pier to be placed at the top of platform steel reinforcement cage；Described sizing steel mold (4) is annular slab, shape and the transverse cutting of pier shaft lower end
Face exterior contour is identical, interval is formed with multiple necks (5) inside edge, and the spacing and design requirement of neck (5)
The spacing of pier shaft mask reinforcing bar (6) is identical；
4) a piece pier shaft mask reinforcing bar (6) of insertion in each neck (5), and the lower end of pier shaft mask reinforcing bar (6) is banded in
Cushion cap steel reinforcement cage top, then in cushion cap template casting concrete and cushion cap (7) is made；
5) carry out annular together in the inside edge of the top surface edge sizing steel mold (4) of cushion cap (7) using cutting machine to cut, then
Dabbing processing is carried out in the annular region；
6) pier shaft steel reinforcement cage is tied up on the inside of pier shaft mask reinforcing bar and pier body formwork is set in pier shaft mask reinforcing bar lateral branch, finally existed
Casting concrete in pier body formwork and pier shaft is made, thus complete bridge foundation and substructure construction process.
2. bridge foundation according to claim 1 and substructure construction method, it is characterised in that：In step 3) in, institute
The diameter for the neck (5) stated is equal to the diameter of pier shaft mask reinforcing bar (6).
3. bridge foundation according to claim 1 and substructure construction method, it is characterised in that：In step 5) in, institute
The depth of cut stated is 2cm, and dabbing depth is consistent with depth of cut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710450754.0A CN107059909A (en) | 2017-06-15 | 2017-06-15 | A kind of bridge foundation and substructure construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710450754.0A CN107059909A (en) | 2017-06-15 | 2017-06-15 | A kind of bridge foundation and substructure construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107059909A true CN107059909A (en) | 2017-08-18 |
Family
ID=59594419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710450754.0A Pending CN107059909A (en) | 2017-06-15 | 2017-06-15 | A kind of bridge foundation and substructure construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107059909A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332557A (en) * | 2018-12-03 | 2019-02-15 | 中铁六局集团有限公司 | Reinforcing bar mobile hydraulic binding clamping fixture |
| CN109555173A (en) * | 2017-09-26 | 2019-04-02 | 安徽皖通高速公路股份有限公司 | A kind of separate type bridge integrally lifts stake reinforcement means |
| CN113700033A (en) * | 2021-08-06 | 2021-11-26 | 中铁大桥勘测设计院集团有限公司 | Deep water pile group foundation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013125108A1 (en) * | 2012-02-23 | 2013-08-29 | 日立造船株式会社 | Joint structure for steel bridge pier and concrete pile foundation |
| CN103953054A (en) * | 2014-04-01 | 2014-07-30 | 中铁大桥局集团第一工程有限公司 | Dry-sealed concrete pile foundation for protecting pile head reinforcement and construction method thereof |
| CN105926470A (en) * | 2016-06-01 | 2016-09-07 | 广州市公路勘察设计有限公司 | Transformation method of elevated bridge |
| CN106245535A (en) * | 2016-09-09 | 2016-12-21 | 中铁十局集团有限公司 | A kind of pier shaft vertical reinforcement mold |
-
2017
- 2017-06-15 CN CN201710450754.0A patent/CN107059909A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013125108A1 (en) * | 2012-02-23 | 2013-08-29 | 日立造船株式会社 | Joint structure for steel bridge pier and concrete pile foundation |
| CN103953054A (en) * | 2014-04-01 | 2014-07-30 | 中铁大桥局集团第一工程有限公司 | Dry-sealed concrete pile foundation for protecting pile head reinforcement and construction method thereof |
| CN105926470A (en) * | 2016-06-01 | 2016-09-07 | 广州市公路勘察设计有限公司 | Transformation method of elevated bridge |
| CN106245535A (en) * | 2016-09-09 | 2016-12-21 | 中铁十局集团有限公司 | A kind of pier shaft vertical reinforcement mold |
Non-Patent Citations (1)
| Title |
|---|
| 苏永胜: "浅谈桥梁钻孔桩环切法剔除桩头施工工艺及预控要点", 《甘肃科技》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555173A (en) * | 2017-09-26 | 2019-04-02 | 安徽皖通高速公路股份有限公司 | A kind of separate type bridge integrally lifts stake reinforcement means |
| CN109332557A (en) * | 2018-12-03 | 2019-02-15 | 中铁六局集团有限公司 | Reinforcing bar mobile hydraulic binding clamping fixture |
| CN113700033A (en) * | 2021-08-06 | 2021-11-26 | 中铁大桥勘测设计院集团有限公司 | Deep water pile group foundation |
| CN113700033B (en) * | 2021-08-06 | 2022-09-23 | 中铁大桥勘测设计院集团有限公司 | Deep water pile group foundation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104074199B (en) | Underwater bearing platform construction method | |
| CN107059909A (en) | A kind of bridge foundation and substructure construction method | |
| CN104294769B (en) | A kind of piling and the construction method increasing the built bridge abutment structure of platform cap composite reinforcement | |
| CN103469806A (en) | Construction method for replacing brick forming die with prefabricated concrete foundation bearing platform side die | |
| CN105350559B (en) | A kind of construction method of diamond dust structural floor suitable for large-sized workshop | |
| CN105545342B (en) | The smoke shaft and its construction method of existing trimmed tunnel internal arch part | |
| CN105350777A (en) | Device and method for one-time pouring molding of ultra-high concrete column | |
| CN206319886U (en) | Tunnel lining structure | |
| CN102535530A (en) | Miniature pile model used for model tests and manufacturing method thereof | |
| CN105297714A (en) | Integrative construction device and method for pile cap and pile body of pouring pile | |
| CN111502701A (en) | Method for repairing deformed and damaged roadway and roadway structure thereof | |
| CN204097889U (en) | A kind of piling and the built bridge abutment structure of increase platform cap composite reinforcement | |
| CN106381937A (en) | Concrete structured pre-buried hole repairing method | |
| CN206144137U (en) | Board formwork instrument falls | |
| CN104947853B (en) | A kind of Inner standpipe formula cast-in-situ reinforced concrete column and construction method | |
| CN107268627A (en) | One kind is applied to large-scale cast-in-situ bored pile pile crown restructuring bankrupt | |
| CN105002891B (en) | A kind of cast-in-situ bored pile exempts from inter-pile soil excavation construction method | |
| CN206143608U (en) | Assembled T beam bridge hogging moment district anchorage sealing system | |
| CN110485421A (en) | A kind of pile crown quickly abolishes construction technology | |
| CN206173983U (en) | Building foundation water -blocking weir | |
| CN109944246A (en) | A kind of construction method of broken pile head | |
| CN105626138B (en) | A kind of precipice passway for escaping structure and its construction method | |
| CN107939094A (en) | Conical concrete construction of funnel method | |
| CN114045856A (en) | Integrated pile-driving drilling mechanism of photovoltaic power station and construction method | |
| CN110241817A (en) | A kind of impaired after-construction method of the friction pile stake holes of emergency repair engineering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170818 |
|
| WD01 | Invention patent application deemed withdrawn after publication |