CN106192724A - A kind of attachment structure of the abutment Yu roadbed for processing problem of bumping at bridge-head - Google Patents
A kind of attachment structure of the abutment Yu roadbed for processing problem of bumping at bridge-head Download PDFInfo
- Publication number
- CN106192724A CN106192724A CN201610572752.4A CN201610572752A CN106192724A CN 106192724 A CN106192724 A CN 106192724A CN 201610572752 A CN201610572752 A CN 201610572752A CN 106192724 A CN106192724 A CN 106192724A
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- CN
- China
- Prior art keywords
- earthfill
- roadbed
- geonet
- attachment structure
- bridge
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- 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.)
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Classifications
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- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses the attachment structure of a kind of abutment Yu roadbed for processing problem of bumping at bridge-head.This attachment structure is between abutment and original roadbed, including CFG stake, earthfill structure, soil cement grouting treatment district and geonet；CFG stake is positioned at orlop, and it effectively reinforces original roadbed, for reducing the sedimentation of original roadbed；Earthfill structure is positioned on CFG stake, earthfill structure is separated by geonet and parallel layering is filled by filler, every layer of geonet layer each with earthfill structure filler is locked in together, form stability plane, for effectively reducing and control the deformation of this attachment structure, and each layer of earthfill structure is compacted after filling, it is possible to reduce the sedimentation of this attachment structure；Soil cement grouting treatment district is positioned at the top of earthfill structure, and wedge shaped, one end is connected with the Bridge-Culvert Platform Back after abutment, and the other end is connected with original roadbed.The attachment structure of the present invention promotes pavement life, reduces maintenance cost, promotes degree of safety and comfort level that vehicle travels.
Description
Technical field
The invention belongs to road-bridge transition section processing technology field, particularly to a kind of bridge for processing problem of bumping at bridge-head
Platform and the attachment structure of roadbed.
Background technology
The most both at home and abroad for problem of bumping at bridge-head, often hazard to bridge's pier is set at road-bridge transition section, or carries out foundation stabilization
Process, such as methods such as sand compaction pile, CFG stake and pile tubes.From engineering practice effect, use hazard to bridge's pier, at attachment strap
The road surface of end and roadbed intersection easily produce relative settlement and transverse crack, easily produce " secondary jumping car " problem；Adopt
During with other single foundation reinforcement methods, filled height is excessive, or roadbed is different from the abutment sedimentation time, therefore can not be very
Solve well abutment and settlement of subgrade problem.Therefore, the demand for new technique is extremely urgent.
Summary of the invention
It is an object of the invention to overcome deficiency of the prior art, it is provided that a kind of abutment for processing problem of bumping at bridge-head
Attachment structure with roadbed.
The thinking of the present invention: with the pending region of soil cement grouting treatment, it is possible to largely improve the intensity banketed,
And specially processing region is extended at original roadbed from Bridge-Culvert Platform Back, reach to reduce Bridge-Culvert Platform Back with original roadbed even
Connect the purpose of place's sedimentation, and reduce the differential settlement of processing region and unprocessed region；Simultaneously without soil cement grouting treatment
Region point multilamellar of banketing is filled, and arranges geonet between every layer, and banket intensity can be greatly improved, and reduces settling amount；Through processing
Earthfill structure below ground all use CFG stake bracing reinforcement, at utmost reduce the sedimentation of recent fill, thus at utmost
The problem solving bumping at bridge-head.
The present invention is achieved in that the attachment structure of a kind of abutment Yu roadbed for processing problem of bumping at bridge-head, should
Attachment structure is between abutment and original roadbed；This attachment structure includes CFG stake, earthfill structure, soil cement grouting treatment district
And geonet；CFG stake is positioned at orlop, and it effectively strengthens original roadbed, for reducing the sedimentation of original roadbed；Earthfill structure
Being positioned on CFG stake, earthfill structure is separated by geonet and parallel layering is filled by filler, and every layer of geonet is each with earthfill structure
Layer filler is locked in together, and forms stable plane, for effectively reducing and control the deformation of this attachment structure, and earthfill structure
Each layer is compacted after filling, it is possible to reduce the sedimentation of this attachment structure；Soil cement grouting treatment district is positioned at the upper of earthfill structure
Portion, wedge shaped, one end is connected with the Bridge-Culvert Platform Back after abutment, and the other end is connected with original roadbed, soil cement grouting treatment district
By treated length is Bridge-Culvert Platform Back length the 1/2 ~ 2/3 of Bridge-Culvert Platform Back side, go deep into a length of 10 ~ 20m of original roadbed.
It is 9 ~ 13% that the soil water mud in described soil cement grouting treatment district mixes mass ratio.
Described geonet specification is material thickness 1.25mm, highly 10cm or 15cm, and geonet welds away from 40cm or 47cm, geonet
Intensity index: hot strength >=25MPa, stretch modulus >=650MPa, weld seam room temperature peel strength >=100Ncm, low temperature brittleness temperature
Spend≤50 DEG C.
The method have the advantages that
(1) remarkable in economical benefits.Every year problem of bumping at bridge-head is repaired for highway construction department and a large amount of money need to be put into
Gold, significantly reduces the maintenance costs that annual end of the bridge processes, and promotes the service life on road surface.
(2) social benefit highlights.Problems of Bump at Highway Bridge Head be can effectively reduce, comfortableness and the safety of driving improved
Property, produce preferable social benefit.
(3) various piece complements each other, and works in coordination, and effectively distributes top lotus by soil cement grouting treatment and geonet
Carry so that the differential settlement between abutment and original roadbed is reduced significantly, it is achieved rigidity abutment and flexible road basic mode
The smooth transition of amount.
Accompanying drawing explanation
Fig. 1 is that in the embodiment of the present invention, structure for the attachment structure of the abutment with roadbed that process problem of bumping at bridge-head is shown
It is intended to.
The original roadbed of labelling in figure: 1-；2-CFG stake；3-Bridge-Culvert Platform Back；4-earthfill structure；5-soil cement grouting treatment
District；6-geonet；7-abutment.
Detailed description of the invention
Embodiment:
The attachment structure of a kind of abutment Yu roadbed for processing problem of bumping at bridge-head, as it is shown in figure 1, this attachment structure is positioned at bridge
Between platform 7 and original roadbed 1；This attachment structure includes CFG stake 2, earthfill structure 4, soil cement grouting treatment district 5 and geonet 6；
CFG stake 2 is positioned at orlop, and it effectively strengthens original roadbed 1, for reducing the sedimentation of original roadbed 1；Earthfill structure 4 is positioned at
On CFG stake 2, earthfill structure 4 is separated by geonet 6 and parallel layering is filled by filler, every layer of geonet 6 and earthfill structure 4
Each layer filler is locked in together, and forms stable plane, for effectively reducing and control the deformation of this attachment structure, and the knot that bankets
The each layer of structure 4 is compacted after filling, it is possible to reduce the sedimentation of this attachment structure；Soil cement grouting treatment district 5 is positioned at earthfill structure 4
Top, wedge shaped, one end is connected with the Bridge-Culvert Platform Back 3 after abutment 7, and the other end is connected with original roadbed 1, soil cement be in the milk
Treatment region 5, by treated length is Bridge-Culvert Platform Back 3 length the 2/3 of Bridge-Culvert Platform Back 3 side, gos deep into a length of of original roadbed 1
15m。
It is 11% that the soil water mud in described soil cement grouting treatment district 5 mixes mass ratio.
Described geonet 6 specification is material thickness 1.25mm, highly 15cm, and geonet 6 welds away from 47cm, geonet 6 intensity index:
Hot strength is 25MPa, and stretch modulus is 650MPa, and weld seam room temperature peel strength is 100Ncm, and brittle temperature is 50 DEG C.
In the present embodiment, the attachment structure for the abutment and roadbed that process problem of bumping at bridge-head follows the steps below
Construction:
1. original roadbed 1 pressure of shaking are flattened
Between transitional region to Bridge-Culvert Platform Back 3 and original roadbed 1, the original roadbed 1 below earthfill structure 4, carry out leveling and shake
Pressure.
2. CFG stake 2 pile
CFG stake 2 is laid below earthfill structure 4.
3. earthfill structure 4 and geonet 6 are laid
Starting the most first to lay one layer of geonet 6 from bottom, earthfill structure 4 one end, geonet 6 top is fixed to bridges and culverts platform
The back of the body 3, the other end is fixed to original roadbed 1, the artificial and mechanical mode combined of stone employing, first fills out thickness with machinery filling to void
Degree, then use hand-stuff dead angle, then flatten and be compacted, laying complete one layer.
Repeating step 3. the most from the bottom to top, until laying to soil cement grouting treatment district 5, carrying out soil cement grouting solidification,
I.e. complete the construction of attachment structure.
Claims (1)
1. one kind is used for processing the abutment of problem of bumping at bridge-head and the attachment structure of roadbed, it is characterised in that this attachment structure is positioned at
Between abutment (7) and original roadbed (1)；This attachment structure includes CFG stake (2), earthfill structure (4), soil cement grouting treatment district
And geonet (6) (5)；CFG stake (2) is positioned at orlop, and it effectively strengthens original roadbed (1), is used for reducing original roadbed (1)
Sedimentation；Earthfill structure (4) is positioned on CFG stake (2), and earthfill structure (4) is separated by geonet (6) and parallel layering is by filler
Filling, every layer of geonet (6) is locked in together with earthfill structure (4) each layer filler, forms stable plane, for effectively reducing
With control the deformation of this attachment structure, and earthfill structure (4) each layer is compacted after filling, it is possible to reduce the heavy of this attachment structure
Fall；Soil cement grouting treatment district (5) is positioned at the top of earthfill structure (4), wedge shaped, one end and abutment (7) bridges and culverts platform below
The back of the body (3) connects, and the other end is connected with original roadbed (1), and soil cement grouting treatment district (5) is by the process of Bridge-Culvert Platform Back (3) side
The 1/2 ~ 2/3 of a length of Bridge-Culvert Platform Back (3) length, gos deep into a length of 10 ~ 20m of original roadbed (1)；
It is 9 ~ 13% that the soil water mud of described soil cement grouting treatment district (5) mixes mass ratio；
Described geonet (6) specification is material thickness 1.25mm, highly 10cm or 15cm, and geonet (6) weldering is away from 40cm or 47cm, geotechnique
Net (6) intensity index: hot strength >=25MPa, stretch modulus >=650MPa, weld seam room temperature peel strength >=100Ncm, low temperature
Brittle temperature≤50 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610572752.4A CN106192724B (en) | 2016-07-21 | 2016-07-21 | A kind of attachment structure for being used to handle the abutment and roadbed of problem of bumping at bridge-head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610572752.4A CN106192724B (en) | 2016-07-21 | 2016-07-21 | A kind of attachment structure for being used to handle the abutment and roadbed of problem of bumping at bridge-head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106192724A true CN106192724A (en) | 2016-12-07 |
| CN106192724B CN106192724B (en) | 2018-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610572752.4A Active CN106192724B (en) | 2016-07-21 | 2016-07-21 | A kind of attachment structure for being used to handle the abutment and roadbed of problem of bumping at bridge-head |
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| Country | Link |
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| CN (1) | CN106192724B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110820715A (en) * | 2019-10-18 | 2020-02-21 | 桂林理工大学 | Device and method for reducing problem of vehicle jumping at road and bridge transition section |
| CN115262586A (en) * | 2022-07-29 | 2022-11-01 | 中国二十冶集团有限公司 | Construction method for box culvert back backfilling |
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|---|---|---|---|---|
| JP2005113467A (en) * | 2003-10-07 | 2005-04-28 | Railway Technical Res Inst | Method of constructing reinforced soil abutment and pier, and structures of the same |
| US20080172808A1 (en) * | 2005-04-18 | 2008-07-24 | George Leslie England | Bridge Structures |
| CN102041759A (en) * | 2010-11-26 | 2011-05-04 | 合肥工业大学科教开发部 | Transition roadway for managing bumping at bridge-head |
| CN103628376A (en) * | 2013-11-20 | 2014-03-12 | 长安大学 | Bridgehead vehicle bumping prevention structure based on concrete composite pavement and laying method thereof |
| CN204780566U (en) * | 2015-05-18 | 2015-11-18 | 上海市政工程设计研究总院（集团）有限公司 | Eliminate either end of a bridge and jump bridge ground connection segment structure of car |
| CN105220620A (en) * | 2015-10-20 | 2016-01-06 | 合肥市市政设计院有限公司 | The bumping at bridge-head processing method of darker mud soft soil foundation after platform |
| CN205188819U (en) * | 2015-12-08 | 2016-04-27 | 郑州大学 | Support arrangement for prevent either end of a bridge jump car |
-
2016
- 2016-07-21 CN CN201610572752.4A patent/CN106192724B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005113467A (en) * | 2003-10-07 | 2005-04-28 | Railway Technical Res Inst | Method of constructing reinforced soil abutment and pier, and structures of the same |
| US20080172808A1 (en) * | 2005-04-18 | 2008-07-24 | George Leslie England | Bridge Structures |
| CN102041759A (en) * | 2010-11-26 | 2011-05-04 | 合肥工业大学科教开发部 | Transition roadway for managing bumping at bridge-head |
| CN103628376A (en) * | 2013-11-20 | 2014-03-12 | 长安大学 | Bridgehead vehicle bumping prevention structure based on concrete composite pavement and laying method thereof |
| CN204780566U (en) * | 2015-05-18 | 2015-11-18 | 上海市政工程设计研究总院（集团）有限公司 | Eliminate either end of a bridge and jump bridge ground connection segment structure of car |
| CN105220620A (en) * | 2015-10-20 | 2016-01-06 | 合肥市市政设计院有限公司 | The bumping at bridge-head processing method of darker mud soft soil foundation after platform |
| CN205188819U (en) * | 2015-12-08 | 2016-04-27 | 郑州大学 | Support arrangement for prevent either end of a bridge jump car |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110820715A (en) * | 2019-10-18 | 2020-02-21 | 桂林理工大学 | Device and method for reducing problem of vehicle jumping at road and bridge transition section |
| CN115262586A (en) * | 2022-07-29 | 2022-11-01 | 中国二十冶集团有限公司 | Construction method for box culvert back backfilling |
| CN115262586B (en) * | 2022-07-29 | 2023-07-21 | 中国二十冶集团有限公司 | Construction method for backfilling box culvert back |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106192724B (en) | 2018-01-12 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20161207 Assignee: Guangxi Keming Engineering Survey and Design Co.,Ltd. Assignor: GUILIN University OF TECHNOLOGY Contract record no.: X2022450000078 Denomination of invention: A Connection Structure between Abutment and Subgrade for Dealing with Vehicle Bumping at Bridge Head Granted publication date: 20180112 License type: Common License Record date: 20221118 |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20161207 Assignee: Guilin Science and Engineering Architectural Planning and Design Co.,Ltd. Assignor: GUILIN University OF TECHNOLOGY Contract record no.: X2022450000240 Denomination of invention: A Connection Structure between Abutment and Subgrade for Dealing with Vehicle Bumping at Bridge Head Granted publication date: 20180112 License type: Common License Record date: 20221206 |
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