CN108457291A - A kind of asymmetric piles support and change method and underpinning structure - Google Patents
A kind of asymmetric piles support and change method and underpinning structure Download PDFInfo
- Publication number
- CN108457291A CN108457291A CN201810238016.4A CN201810238016A CN108457291A CN 108457291 A CN108457291 A CN 108457291A CN 201810238016 A CN201810238016 A CN 201810238016A CN 108457291 A CN108457291 A CN 108457291A
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- China
- Prior art keywords
- abutment
- asymmetric
- piles
- pile
- transform beams
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Links
- 238000009424 underpinning Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000010276 construction Methods 0.000 claims abstract description 25
- 238000007596 consolidation process Methods 0.000 claims abstract description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 3
- 230000005641 tunneling Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
Abstract
The invention discloses a kind of asymmetric piles support and change methods, include the following steps：Small-scale pit is excavated in region outside under-traverse tunnel coverage, on the basis of meeting the requirement of pile foundation construction machinery clear height, carries out to ensure pile foundation underpinning and dig the stratum consolidation of stake safety；Region outside under-traverse tunnel coverage makes underpinned pile and pile cover, carries out vertical applied force system construction；Region outside under-traverse tunnel coverage makes transform beams, and transform beams are connect with abutment, and horizontal force system construction is integrally carried out to the connection of transform beams and abutment；Jack is set between pile cover and transform beams and jacking is set, the pile foundation of abutment position is underpined.The invention also discloses a kind of asymmetric piles underpinning structures.The asymmetric piles support and change method and underpinning structure for implementing the present invention, can underpin asymmetric piles, meet safety, economic, requirement easy to operation；Speed of application is fast, saves the duration.
Description
Technical field
The present invention relates to constructing tunnel field more particularly to a kind of asymmetric piles support and change method and underpin knot
Structure.
Background technology
In the prior art, when city tunnel needs underbridge beam pile foundation, it usually needs the construction of pile foundation underpinning is carried out, it is existing
Some carries out support and change method and underpinning structure, because barricade asymmetric arrangement is influenced after by abutment and abutment, bridge to piles
There are prodigious technical difficulty and risks for the underpinning construction of pile foundation at platform.
Therefore, there is an urgent need to a kind of new bridge Abutment Pile Foundation Underpinning Technology Applied in Construction to solve Abutment pile foundation underpinning
Problem.
Invention content
Technical problem to be solved by the present invention lies in provide a kind of asymmetric piles support and change method and underpin knot
Structure can underpin asymmetric piles, meet safety, economic, requirement easy to operation；Speed of application is fast, section
Save the duration.
In order to solve the above-mentioned technical problem, an embodiment of the present invention provides a kind of asymmetric piles support and change method,
On the basis of the barricade after tunnel underbridge beam pile foundation, the abutment and abutment that do not destroy a bridge, piles are carried out non-
It is symmetrical actively to underpin, include the following steps：Small-scale pit is excavated in region outside under-traverse tunnel coverage, is meeting pile foundation
On the basis of construction machinery clear height requires, carry out to ensure pile foundation underpinning and dig the stratum consolidation of stake safety；In under-traverse tunnel
Region outside coverage makes underpinned pile and pile cover, carries out vertical applied force system construction；Outside under-traverse tunnel coverage
Region makes transform beams, and transform beams are connect with abutment, and horizontal force system construction is integrally carried out to the connection of transform beams and abutment；
Jack is set between pile cover and transform beams and jacking is set, the pile foundation of abutment position is underpined.
Wherein, it is attached to form asymmetric overall structure by horizontal direction bar planting between transform beams and abutment.
Wherein, jack is set between pile cover and transform beams and jacking is set, the pile foundation of abutment position is carried out underpining step
Further include after rapid：The step of pile foundation cutting piles are carried out using transverse passage-way, vertical shaft or in tunnel.
Wherein, asymmetric piles support and change method performs within the scope of the low clearance of bridge lower space.
Wherein, the abutment of bridge is located at the junction of bridge and barricade, and one side is set as facing sky, and the other side is filled out for abutment
Soil.
In order to solve the above technical problems, the invention also discloses a kind of asymmetric piles underpinning structure, to
After the abutment and abutment that do not destroy a bridge on the basis of barricade, asymmetric is carried out to piles for tunnel underbridge beam pile foundation
Actively underpin, including：It is located at the underpinned pile of under-traverse tunnel coverage exterior domain, the pile cover being fastened on underpinned pile, is located at down
The transform beams of tunneling road coverage exterior domain and the jack being located between pile cover and transform beams, wherein：Transform beams and bridge
Platform connects, and jack is set as jacking state.
Wherein, it is attached to form asymmetric overall structure by horizontal direction bar planting between transform beams and abutment.
Wherein, further include：To carry out the transverse passage-way or vertical shaft of cutting piles to bridge pile foundation.
Wherein, one end of the dams setting in bridge after abutment.
Wherein, abutment is located at the junction of bridge and barricade, and one side is set as facing sky, and the other side is banketed for abutment.
Implement asymmetric piles support and change method of the embodiment of the present invention and underpinning structure, has the advantages that：
Small-scale pit is excavated in region outside under-traverse tunnel coverage, on the basis of meeting the requirement of pile foundation construction machinery clear height, into
It goes to ensure pile foundation underpinning and dig the stratum consolidation of stake safety；Region outside under-traverse tunnel coverage make underpinned pile and
Pile cover carries out vertical applied force system construction；Region outside under-traverse tunnel coverage makes transform beams, and transform beams connect with abutment
It connects, horizontal force system construction is integrally carried out to the connection of transform beams and abutment；Jack is set between pile cover and transform beams
And jacking is set, the pile foundation of abutment position is underpined, asymmetric piles can be underpined, meet safety, warp
Ji, requirement easy to operation；Speed of application is fast, saves the duration.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of the excavation pit of asymmetric piles underpinning structure of the present invention.
Fig. 2 is the structural schematic diagram for performing underpinned pile and pile cover of asymmetric piles underpinning structure of the present invention.
Fig. 3 is the structural schematic diagram for performing transform beams of asymmetric piles underpinning structure of the present invention.
Fig. 4 is asymmetric piles underpinning structure of the present invention by jacking the structural schematic diagram actively underpined.
Fig. 5 is the knot that pile foundation section stake is carried out by transverse passage-way and vertical shaft of asymmetric piles underpinning structure of the present invention
Structure schematic diagram.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1-Fig. 5, the embodiment one of asymmetric piles underpinning structure is used for the present invention.
Asymmetric piles underpinning structure in the present embodiment, in the pile foundation 12 of tunnel underbridge beam 1, not break
After the abutment 11 and abutment of bad bridge 1 on the basis of barricade 13, asymmetric is carried out to piles 12 and is actively underpined, is mainly related to
And stratum consolidation, underpin pile driving construction, asymmetric underpinning structure, cushion cap be coupled etc. technological designs.
Asymmetric piles in the present embodiment refer to：The one end in bridge 1 is arranged in barricade 13 after abutment.Abutment
11 are located at the junction of bridge 1 and barricade 13 after abutment, and the side of abutment 11 is set as facing sky, and the other side of abutment 11 is filled out for abutment
Soil is unsymmetric structure.Following pile foundation underpinning structures in the present embodiment can be good at solving asymmetric piles support
Technical difficulty in changing and existing risk.
Asymmetric piles underpinning structure in the present embodiment, including：It is located at under-traverse tunnel coverage exterior domain
Underpinned pile 2, be fastened on underpinned pile 2 pile cover 3, be located at the transform beams 4 of under-traverse tunnel coverage exterior domain and be located at
Jack 5 between pile cover 3 and transform beams 4, wherein：Transform beams 4 are connect with abutment 11, and jack 5 is set as jacking state.
When it is implemented, perform underpinned pile 2, pile cover 3 and transform beams 4 using bridge Bridge 1 down space 1a, by transform beams 4 with
After the connection of existing abutment 11 forms entirety, asymmetric is carried out to piles 12 using the jacking of jack 5 and is actively underpined, not
After destruction abutment 11 and abutment in the case of barricade 13, underpining for Abutment pile foundation is realized.
Wherein：Transform beams 4 are coupled the whole effect of formation with existing abutment 11 is：When ensureing that pile foundation 12 underpins, abutment
11 it is complete, prevent the offset of abutment 11 or even the case where collapse.
Preferably, it is attached by horizontal direction bar planting 6 between transform beams 4 and abutment 11 and to form asymmetric and integrally tie
Structure.In this way, on the basis of ensureing bonding strength, when ensureing that pile foundation 12 underpins, abutment 11 it is complete, it is inclined to prevent abutment 11
Move the case where even collapsing.
Further, further include：To carry out the transverse passage-way or vertical shaft 7 of cutting piles to bridge pile foundation 12.The structure
Effect be：Jack 5 jacking to piles 12 carry out asymmetric actively underpin after, using transverse passage-way, vertical shaft or
Underpinned pile cutting piles are carried out in Tunnel, are ready for tunnel underbridge beam pile foundation.
The present invention also provides a kind of asymmetric piles support and change method, in tunnel underbridge beam pile foundation 12,
After the abutment 11 and abutment that do not destroy a bridge on the basis of barricade 13, asymmetric is carried out to piles 12 and is actively underpined.
Asymmetric piles in the present embodiment refer to：The one end in bridge 1 is arranged in barricade 13 after abutment.Abutment
11 are located at the junction of bridge 1 and barricade 13 after abutment, and the side of abutment 11 is set as facing sky, and the other side of abutment 11 is filled out for abutment
Soil is unsymmetric structure.Following pile foundation underpinning structures in the present embodiment can be good at solving asymmetric piles support
Technical difficulty in changing and existing risk.
When it is implemented, including the following steps：Small-scale pit 8 is excavated in region outside under-traverse tunnel coverage, full
On the basis of sufficient pile foundation construction machinery clear height requires, carry out to ensure pile foundation underpinning and dig the stratum consolidation of stake safety；Under
Region outside tunneling road coverage makes underpinned pile 2 and pile cover 3, carries out vertical applied force system construction；It is influenced in under-traverse tunnel
Region outside range makes transform beams 4, and transform beams 4 are connect with abutment 11, and water is integrally carried out to the connection of transform beams 4 and abutment 11
Flat stress system construction；Jack 5 is set between pile cover 3 and transform beams 2 and pile foundation 12 of the jacking to 11 position of abutment is set
It is underpined.
Since usually clear height is limited at abutment 11, applies man-hour requirement and first excavate out small-scale pit 8, meeting pile foundation construction machine
Under the premise of tool clear height requires, stratum consolidation is carried out to ensure pile foundation underpinning and dig the safety of stake.Further, since needing to utilize bridge
Beam Bridge 1 down space 1a performs underpinned pile 2, pile cover 3 and transform beams 4, and the construction needs of underpinned pile are completed within the scope of low clearance, because
This pile foundation construction machinery should select special machine.Transform beams 4 are coupled with existing abutment 11 after forming entirety, utilize jack 5
Jacking carries out asymmetric to piles 12 and actively underpins, real in the case of barricade 13 after not destroying abutment 11 and abutment
Existing Abutment pile foundation underpins.
Wherein：Transform beams 4 are coupled the whole effect of formation with existing abutment 11 is：When ensureing that pile foundation 12 underpins, abutment
11 it is complete, prevent the offset of abutment 11 or even the case where collapse.
Wherein, abutment 11 is often arranged by the way of the framing of left and right, before underpining, is needed transform beams 4 and abutment 11
Become entirety, when just can guarantee pile foundation underpinning, abutment it is complete, prevent and abutment displacement or even collapse.In the present embodiment, support
It changes between beam 4 and abutment 11 and is attached to form asymmetric overall structure by horizontal direction bar planting 6.In this way, ensureing to connect
On the basis of connecing intensity, when ensureing that pile foundation 12 underpins, complete, the feelings for preventing the offset of abutment 11 or even collapsing of abutment 11
Condition.
Further, further include：To carry out the transverse passage-way or vertical shaft 7 of cutting piles to bridge pile foundation 12.The structure
Effect be：Jack 5 jacking to piles 12 carry out asymmetric actively underpin after, using transverse passage-way, vertical shaft or
Underpinned pile cutting piles are carried out in Tunnel, are ready for tunnel underbridge beam pile foundation.
The asymmetric piles support and change method and underpinning structure for implementing the present invention, have the advantages that, under
Small-scale pit is excavated in region outside tunneling road coverage, on the basis of meeting the requirement of pile foundation construction machinery clear height, is used
To ensure pile foundation underpinning and dig the stratum consolidation of stake safety；Region outside under-traverse tunnel coverage makes underpinned pile and stake
Cap carries out vertical applied force system construction；Region outside under-traverse tunnel coverage makes transform beams, and transform beams connect with abutment
It connects, horizontal force system construction is integrally carried out to the connection of transform beams and abutment；Jack is set between pile cover and transform beams
And jacking is set, the pile foundation of abutment position is underpined, asymmetric piles can be underpined, meet safety, warp
Ji, requirement easy to operation；Speed of application is fast, saves the duration.
Claims (10)
1. a kind of asymmetric piles support and change method, in tunnel underbridge beam pile foundation, the abutment not destroyed a bridge and
After abutment on the basis of barricade, asymmetric is carried out to piles and is actively underpined, which is characterized in that is included the following steps：
Small-scale pit is excavated in region outside under-traverse tunnel coverage, on the basis for meeting the requirement of pile foundation construction machinery clear height
On, it carries out to ensure pile foundation underpinning and dig the stratum consolidation of stake safety；
Region outside under-traverse tunnel coverage makes underpinned pile and pile cover, carries out vertical applied force system construction；
Region outside under-traverse tunnel coverage makes transform beams, and transform beams are connect with abutment, to the transform beams and abutment
Connection integrally carry out horizontal force system construction；
Jack is set between the pile cover and the transform beams and jacking is set, the pile foundation of abutment position is underpined.
2. asymmetric piles support and change method as described in claim 1, which is characterized in that the transform beams and the bridge
It is attached to form asymmetric overall structure by horizontal direction bar planting between platform.
3. asymmetric piles support and change method as described in claim 1, which is characterized in that described in the pile cover and institute
It states between transform beams setting jack and is arranged after jacking underpin step to the pile foundation of abutment position and further include：
The step of pile foundation cutting piles are carried out using transverse passage-way, vertical shaft or in tunnel.
4. asymmetric piles support and change method as described in claim 1, which is characterized in that the asymmetric abutment stake
Base support and change method performs within the scope of the low clearance of bridge lower space.
5. asymmetric piles support and change method as described in claim 1, which is characterized in that the abutment of the bridge is located at
The junction of bridge and barricade, one side are set as facing sky, and the other side is banketed for abutment.
6. a kind of asymmetric piles underpinning structure, in tunnel underbridge beam pile foundation, the abutment not destroyed a bridge and
After abutment on the basis of barricade, asymmetric is carried out to piles and is actively underpined, which is characterized in that
Including：It is located at the underpinned pile of under-traverse tunnel coverage exterior domain, the pile cover being fastened on the underpinned pile, is located at down and wears
The transform beams of tunnel coverage exterior domain and the jack being located between the pile cover and the transform beams, wherein：
The transform beams are connect with the abutment, and the jack is set as jacking state.
7. asymmetric piles underpinning structure as claimed in claim 6, which is characterized in that the transform beams and the bridge
It is attached to form asymmetric overall structure by horizontal direction bar planting between platform.
8. asymmetric piles underpinning structure as claimed in claim 6, which is characterized in that further include：To bridge
Pile foundation carries out the transverse passage-way or vertical shaft of cutting piles.
9. asymmetric piles underpinning structure as claimed in claim 6, which is characterized in that dams setting after the abutment
In the one end of bridge.
10. asymmetric piles underpinning structure as claimed in claim 6, which is characterized in that the abutment is located at bridge
With the junction of barricade, one side is set as facing sky, and the other side is banketed for abutment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810238016.4A CN108457291A (en) | 2018-03-22 | 2018-03-22 | A kind of asymmetric piles support and change method and underpinning structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810238016.4A CN108457291A (en) | 2018-03-22 | 2018-03-22 | A kind of asymmetric piles support and change method and underpinning structure |
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| Publication Number | Publication Date |
|---|---|
| CN108457291A true CN108457291A (en) | 2018-08-28 |
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| CN201810238016.4A Pending CN108457291A (en) | 2018-03-22 | 2018-03-22 | A kind of asymmetric piles support and change method and underpinning structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110468873A (en) * | 2019-09-16 | 2019-11-19 | 南京吉欧地下空间科技有限公司 | Piles underpinning structure and application method under a kind of small space |
| CN112176853A (en) * | 2020-11-04 | 2021-01-05 | 武汉大学 | Pile-supported damping reinforced earth abutment and construction method thereof |
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2018
- 2018-03-22 CN CN201810238016.4A patent/CN108457291A/en active Pending
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| KR101653606B1 (en) * | 2015-09-25 | 2016-09-02 | 우경기술주식회사 | Method for constructing integral abutment bridge |
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| CN208183779U (en) * | 2018-03-22 | 2018-12-04 | 深圳市市政设计研究院有限公司 | A kind of asymmetric piles underpinning structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110468873A (en) * | 2019-09-16 | 2019-11-19 | 南京吉欧地下空间科技有限公司 | Piles underpinning structure and application method under a kind of small space |
| CN112176853A (en) * | 2020-11-04 | 2021-01-05 | 武汉大学 | Pile-supported damping reinforced earth abutment and construction method thereof |
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