CN108411714A - The high peg board of roadbed and its construction method - Google Patents
The high peg board of roadbed and its construction method Download PDFInfo
- Publication number
- CN108411714A CN108411714A CN201810438416.XA CN201810438416A CN108411714A CN 108411714 A CN108411714 A CN 108411714A CN 201810438416 A CN201810438416 A CN 201810438416A CN 108411714 A CN108411714 A CN 108411714A
- Authority
- CN
- China
- Prior art keywords
- roadbed
- loading plate
- grouting pipe
- subgrade
- peg board
- 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
- 238000010276 construction Methods 0.000 title claims abstract description 17
- 238000007569 slipcasting Methods 0.000 claims abstract description 19
- 238000011065 in-situ storage Methods 0.000 claims abstract description 8
- 239000002344 surface layer Substances 0.000 claims description 15
- 239000010410 layer Substances 0.000 claims description 13
- 239000004575 stone Substances 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 4
- 230000004308 accommodation Effects 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 14
- 230000000694 effects Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000000945 filler Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2/00—General structure of permanent way
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2/00—General structure of permanent way
- E01B2/006—Deep foundation of tracks
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Railway Tracks (AREA)
Abstract
The invention discloses a kind of high peg board of roadbed and its construction methods comprising：Loading plate is layed in roadbed；Cast-in-situ bored pile, one end stretch into the loading plate, and the other end stretches into below ground；And several Grouting Pipes, run through the loading plate, slip casting can be implemented with down space to the loading plate by the Grouting Pipe.During operation, when generating phenomena such as part is come to nothing between roadbed filling when the loading plate of the high pile slab structure of roadbed and below, slip casting maintenance is carried out to loading plate underlying space using Grouting Pipe, thus avoids security risk, and it is easy to operate, it can effectively reduce maintenance cost.
Description
Technical field
The present invention relates to subgrade engineering field more particularly to a kind of high peg boards of roadbed and its construction method.
Background technology
The high peg board of roadbed is a kind of structure type being made of foundation pile, loading plate being arranged inside roadbed, is widely used in
In high speed railway construction, application range includes：The uncontrollable deep soft soil high-fill roadbed of settlement after construction, collapsibility are yellow
Dirt road base, Karst Subgrade etc..By a plurality of high ferro line construction and the practice test of operation, can be had using the high pile slab structure of roadbed
Effect control road bed settlement after construction, but part is banketed compared with elevated formation level using after high pile slab structure, is more than stake because roadbed ontology settles
Harden structure settles or roadbed ontology is because local Loess Collapsibility, karst collapse etc. generate excessive sedimentation, causes loading plate and Qi Xialu
Phenomenon of coming to nothing is generated between based filler, there are security risks.
Invention content
The present invention be directed to the prior art drawbacks described above, a kind of high peg board of roadbed is provided, have the high peg board of the roadbed and its
Construction method is come to nothing during operation when generating part between the loading plate and roadbed filling below of the high pile slab structure of roadbed
Phenomena such as when, using Grouting Pipe to loading plate underlying space carry out slip casting maintenance, thus avoid security risk, and operation side
Just, maintenance cost can effectively be reduced.
The technical solution adopted by the present invention to solve the technical problems is：
On the one hand, a kind of high peg board of roadbed is provided comprising：Loading plate is layed in roadbed；Cast-in-situ bored pile,
One end is stretched into the loading plate, and the other end stretches into below ground；And several Grouting Pipes, run through the loading plate, can lead to
It crosses the Grouting Pipe and slip casting is implemented with down space to the loading plate.
Preferably, at least one Grouting Pipe, which is equipped with, is used for block.
Preferably, a diameter of 100mm of the Grouting Pipe.
Preferably, the high peg board of the roadbed further includes：Roadbed and track；The roadbed includes：It sets successively from top to bottom
Surface layer of subgrade bed, bottom layer of subgrade and the roadbed ontology set；On the surface layer of subgrade bed, the loading plate is laid with the track laying
In the receiving portion of the bottom layer of subgrade, for carrying the surface layer of subgrade bed and track；Described cast-in-situ bored pile one end is stretched into
In the loading plate, the other end stretches into below ground after passing through the roadbed ontology.
Preferably, the Grouting Pipe is located at below the surface layer of subgrade bed.
On the other hand, a kind of construction method of the high peg board of above-mentioned roadbed is also provided comprising following steps：
S1, bottom layer of subgrade is filled on roadbed ontology, and the appearance for being laid with the loading plate is reserved in the bottom layer of subgrade
Receive portion, and the construction drill bored concrete pile in described accommodation section；
S2, the reinforcing bar binding for carrying out the loading plate, while the pre-buried Grouting Pipe；
S3, block is added at the top of the Grouting Pipe, is fallen into prevent sundries, and casting concrete is to form the carrying
Plate；
S4, after concrete reach design strength 70% after carry out loading plate plate top graded broken stone filling technology, described in formation
Surface layer of subgrade bed.
Preferably, further include step S5, need to the loading plate underlying space carry out slip casting safeguard when, cut the carrying
Graded broken stone above plate opens block and carries out slip casting；And after step S6, slip casting, block is added, use concrete backfill
Cut the hole that graded broken stone is formed.
Preferably, in the step S2, after the pre-buried Grouting Pipe, reinforcing bar is welded between adjacent Grouting Pipe.
The advantageous effect of technical solution of the present invention is：
The present invention can be during operation, when generation office between the loading plate and roadbed filling below of the high pile slab structure of roadbed
When phenomena such as portion comes to nothing, slip casting maintenance is carried out to loading plate underlying space using Grouting Pipe, thus avoids security risk, and grasp
Facilitate, can effectively reduce maintenance cost, improves maintenance effects.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing：
Fig. 1 is the structural plan figure of the high peg board of roadbed in the embodiment of the present invention one；
Fig. 2 is the structure section figure of the high peg board of roadbed in the embodiment of the present invention one.
Specific implementation mode
In order to make the purpose of the present invention, technical solution and advantage be more clearly understood, below in conjunction with drawings and examples,
The present invention will be described in further detail.It should be understood that specific embodiment described herein is only used for explaining this hair
It is bright, it is not intended to limit the present invention.
Embodiment one：
As shown in Figs. 1-2, the high peg board of roadbed of the invention includes：Loading plate 3, is layed in roadbed；Cast-in-situ bored pile
1, one end stretches into the loading plate 3, and the other end stretches into below ground；And several Grouting Pipes 4, run through the loading plate
3, slip casting can be implemented with down space to the loading plate 3 by the Grouting Pipe 4；As a result, when subgrade settlement is more than roadbed height stake
Harden structure settles or roadbed is because local Loess Collapsibility, karst collapse etc. generate excessive sedimentation, causes that loading plate 3 and Qi Xialu occurs
When generating phenomena such as coming to nothing between based filler, slip casting maintenance, behaviour can be implemented with down space to the loading plate 3 by Grouting Pipe 4
Make simply, maintenance effects are good, and need not substantially be changed to structure, and maintenance engineering amount is small, at low cost；
In the present embodiment, the Grouting Pipe 4 is steel Grouting Pipe, a diameter of 100mm, and at least one Grouting Pipe
4 tops are equipped with the block for preventing foreign matter from entering, and to further strengthen the intensity of structure entirety, between adjacent Grouting Pipe 4
It is welded with reinforcing bar；Meanwhile the Grouting Pipe 4 and cast-in-situ bored pile 1 are based on uniform force distribution so that slip casting is easy to control
System reduces maintenance cost, and ensures that structure entirety stress and slip casting are uniform.
Further, as shown in Fig. 2, the high peg board of the roadbed further includes：Roadbed and track 6；Specifically, the roadbed
Including：Surface layer of subgrade bed 10, bottom layer of subgrade 11 and the roadbed ontology 12 set gradually from top to bottom；The track 6 is no tiny fragments of stone, coal, etc. rail
Road, on the surface layer of subgrade bed 10, the loading plate 3 is layed in the receiving portion of the bottom layer of subgrade 11 symmetrical laying, is used for
Carry the surface layer of subgrade bed 10 and track 6；1 one end of the cast-in-situ bored pile is stretched into the loading plate 3, and the other end passes through institute
Below ground is stretched into after stating roadbed ontology 12；On this basis, the Grouting Pipe 4 is located at 10 lower section of the surface layer of subgrade bed, prevents
It, which is protruded, influences driving；Secondly, to enhance buffering effect, bed course 2 is equipped between the loading plate 3 and the bottom layer of subgrade 11.
Embodiment two：
Present embodiments provide a kind of construction method of track described in embodiment two comprising following steps：
S1, bottom layer of subgrade is filled on roadbed ontology, and the appearance for being laid with the loading plate is reserved in the bottom layer of subgrade
Receive portion, and the construction drill bored concrete pile in described accommodation section；
S2, the reinforcing bar binding for carrying out the loading plate, while the pre-buried Grouting Pipe, and be welded between adjacent Grouting Pipe
Reinforcing bar；
S3, block is added at the top of the Grouting Pipe, is fallen into prevent sundries, and casting concrete is to form the carrying
Plate；
S4, after concrete reach design strength 70% after carry out loading plate plate top graded broken stone filling technology, described in formation
Surface layer of subgrade bed；
S5, need to the loading plate underlying space carry out slip casting safeguard when, cut the graded broken stone above the loading plate,
It opens block and carries out slip casting；
And after step S6, slip casting, block is added, the hole formed with concrete backfill cutting graded broken stone.
In conclusion during railroad embankment, when between the loading plate and roadbed filling below of the high pile slab structure of roadbed
When generating phenomena such as part is come to nothing, slip casting maintenance is carried out to loading plate underlying space using Grouting Pipe, thus avoids safety hidden
Suffer from, and easy to operate, can effectively reduce maintenance cost, improves maintenance effects.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of high peg board of roadbed, which is characterized in that including：Loading plate is layed in roadbed；Cast-in-situ bored pile, one end
It stretches into the loading plate, the other end stretches into below ground；And several Grouting Pipes, run through the loading plate, institute can be passed through
It states Grouting Pipe and slip casting is implemented with down space to the loading plate.
2. the high peg board of roadbed as described in claim 1, which is characterized in that at least one Grouting Pipe is equipped with for covering
Cap.
3. the high peg board of roadbed as claimed in claim 2, which is characterized in that a diameter of 100mm of Grouting Pipe.
4. the high peg board of roadbed as described in claim 1, which is characterized in that the high peg board of roadbed further includes：Roadbed and rail
Road；
The roadbed includes：Surface layer of subgrade bed, bottom layer of subgrade and the roadbed ontology set gradually from top to bottom；The track laying
On the surface layer of subgrade bed, the loading plate is layed in the receiving portion of the bottom layer of subgrade, for carrying the surface layer of subgrade bed
And track；Described cast-in-situ bored pile one end is stretched into the loading plate, and the other end stretches into ground after passing through the roadbed ontology
Below.
5. the high peg board of roadbed as claimed in claim 4, which is characterized in that the Grouting Pipe is located at below the surface layer of subgrade bed.
6. a kind of construction method of the high peg board of roadbed as described in claim any one of 1-5, which is characterized in that including walking as follows
Suddenly：
S1, bottom layer of subgrade is filled on roadbed ontology, and the receiving portion for being laid with the loading plate is reserved in the bottom layer of subgrade,
And the construction drill bored concrete pile in described accommodation section；
S2, the reinforcing bar binding for carrying out the loading plate, while the pre-buried Grouting Pipe；
S3, block is added at the top of the Grouting Pipe, is fallen into prevent sundries, and casting concrete is to form the loading plate；
S4, after concrete reach design strength 70% after carry out loading plate plate top graded broken stone filling technology, to form the bedding
Surface layer.
7. construction method as claimed in claim 6, which is characterized in that further include step S5, need to be to empty below the loading plate
Between carry out slip casting when safeguarding, cut the graded broken stone above the loading plate, open block and carry out slip casting；And step S6, note
After slurry, block is added, the hole formed with concrete backfill cutting graded broken stone.
8. construction method as claimed in claim 6, which is characterized in that adjacent after the pre-buried Grouting Pipe in the step S2
Reinforcing bar is welded between Grouting Pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810438416.XA CN108411714A (en) | 2018-05-09 | 2018-05-09 | The high peg board of roadbed and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810438416.XA CN108411714A (en) | 2018-05-09 | 2018-05-09 | The high peg board of roadbed and its construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108411714A true CN108411714A (en) | 2018-08-17 |
Family
ID=63138339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810438416.XA Pending CN108411714A (en) | 2018-05-09 | 2018-05-09 | The high peg board of roadbed and its construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108411714A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010229696A (en) * | 2009-03-27 | 2010-10-14 | Railway Technical Res Inst | Repair method for laborsaving track |
| JP2012031699A (en) * | 2010-08-03 | 2012-02-16 | Kfc Ltd | Track support force reinforcement method |
| CN102926304A (en) * | 2012-11-28 | 2013-02-13 | 中铁第四勘察设计院集团有限公司 | Reinforcement method and reinforcement structure for treating railway soft soil roadbed settlement overweight before operation |
| CN103276639A (en) * | 2013-06-07 | 2013-09-04 | 中铁第四勘察设计院集团有限公司 | Roadbed structure for deep soft soil region |
| CN103321118A (en) * | 2013-07-09 | 2013-09-25 | 中铁第四勘察设计院集团有限公司 | Bridge road transition section roadbed structure of deep layer yielding ground regions |
| CN204000470U (en) * | 2014-02-28 | 2014-12-10 | 中铁第四勘察设计院集团有限公司 | The U-shaped waterproof construction of high stake |
| CN106049196A (en) * | 2016-06-08 | 2016-10-26 | 杭州江润科技有限公司 | Construction method of ballastless track subgrade with combined flexible piles and pile rafts at same fracture surfaces |
| CN107938455A (en) * | 2017-11-28 | 2018-04-20 | 中铁工程设计咨询集团有限公司 | The ruggedized construction and reinforcement means of the roadbed ground of Soft Soil Layer folder basaltic layer structure |
| CN208792056U (en) * | 2018-05-09 | 2019-04-26 | 中铁工程设计咨询集团有限公司 | The high peg board of roadbed |
-
2018
- 2018-05-09 CN CN201810438416.XA patent/CN108411714A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010229696A (en) * | 2009-03-27 | 2010-10-14 | Railway Technical Res Inst | Repair method for laborsaving track |
| JP2012031699A (en) * | 2010-08-03 | 2012-02-16 | Kfc Ltd | Track support force reinforcement method |
| CN102926304A (en) * | 2012-11-28 | 2013-02-13 | 中铁第四勘察设计院集团有限公司 | Reinforcement method and reinforcement structure for treating railway soft soil roadbed settlement overweight before operation |
| CN103276639A (en) * | 2013-06-07 | 2013-09-04 | 中铁第四勘察设计院集团有限公司 | Roadbed structure for deep soft soil region |
| CN103321118A (en) * | 2013-07-09 | 2013-09-25 | 中铁第四勘察设计院集团有限公司 | Bridge road transition section roadbed structure of deep layer yielding ground regions |
| CN204000470U (en) * | 2014-02-28 | 2014-12-10 | 中铁第四勘察设计院集团有限公司 | The U-shaped waterproof construction of high stake |
| CN106049196A (en) * | 2016-06-08 | 2016-10-26 | 杭州江润科技有限公司 | Construction method of ballastless track subgrade with combined flexible piles and pile rafts at same fracture surfaces |
| CN107938455A (en) * | 2017-11-28 | 2018-04-20 | 中铁工程设计咨询集团有限公司 | The ruggedized construction and reinforcement means of the roadbed ground of Soft Soil Layer folder basaltic layer structure |
| CN208792056U (en) * | 2018-05-09 | 2019-04-26 | 中铁工程设计咨询集团有限公司 | The high peg board of roadbed |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20180817 |