CN106320121A - Subgrade repair structure and subgrade repair method - Google Patents
Subgrade repair structure and subgrade repair method Download PDFInfo
- Publication number
- CN106320121A CN106320121A CN201510178580.8A CN201510178580A CN106320121A CN 106320121 A CN106320121 A CN 106320121A CN 201510178580 A CN201510178580 A CN 201510178580A CN 106320121 A CN106320121 A CN 106320121A
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- roadbed
- pile
- subgrade
- prefabricated pile
- prefabricated
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Abstract
The invention discloses a subgrade repair structure, which comprises a pavement layer on the upper portion and a subgrade on the lower portion, wherein a pavement settlement area is positioned on the upper portion of the pavement layer and the subgrade, a plurality of prefabricated piles are arranged inside the subgrade, are perpendicular to the length direction of the subgrade, and are vertically arranged, the prefabricated pile is cylindrical, the front end is provided with a conical pile head, a plurality of holes are uniformly distributed on the surface of the prefabricated pile, and the prefabricated pile is filled with a chemical slurry. The present invention provides the subgrade repair structure and the subgrade repair method, wherein the squeezing effect of the horizontal-lateral piling and the grouting reinforcement are effectively combined, and the subgrade filler is compacted through the lateral piling near the horizontal direction, such that the subgrade is subjected to compacting rising in the vertical direction so as to restore the settlement deformation; and the pressure grouting channel and the hole are reserved in the prefabricated pile, such that the grouting reinforcement is convenient and effective.
Description
Technical field
The present invention relates to road construction, be specifically related to a kind of roadbed and repair structure and method.
Background technology
Roadbed be according to highway or rail route position and certain technology require to build as road surface or rail
The banded structure thing on basis, road, is the basis of highway and railway, and roadbed is to build with soil or building stones to form
Linear structure thing.Roadbed should be built under the conditions of good geology, the hydrology and weather.From material
Point, roadbed can be divided into soil subgrade, rock subgrade, soil-stone embankment three kinds.
Road foundation owing to filler is uneven, filler is bad, filling compaction is insufficient, water content is too high,
, there is sedimentation and deformation in the effect of the factors such as earthquake, Construction Vibration, vehicular load, penetration, deadweight
It it is the FAQs of road foundation.Subgrade settlement necessarily causes the destruction of railroad track and highway pavement,
Endanger safe traffic.Therefore, the settlement issues of effective Subgrade, for ensureing traffic safety
Have important practical significance.
At present, Some Domestic scholar has carried out and Roadbed Soil has been improved by grouting the aspects such as its intensity
Research, although have certain effect, but owing to the compactness of Roadbed Soil body is once more than 80%, fill
Slurry dyschezia, effectively to carry out, is easily formed leakage irrigated area, local.At present, reinforce Rock And Soil by the means of piling,
It is mainly used in the punishment of structure foundation, and mainly vertical direction is driven piles.At road foundation deformation
Controlling aspect, the method that less use piling is repaired, the level that has no laterally is driven piles the engineering method repaired.
Summary of the invention
The technical problem to be solved is that existing road roadbed repairing effect is bad, is easily formed office
The problem in leakage irrigated area, portion.
In order to solve above-mentioned technical problem, the technical solution adopted in the present invention is to provide a kind of roadbed and repaiies
Complex structure, including supercrust and the roadbed of bottom on top, roadbed subsidence region is positioned at supercrust and road
The top of base, is provided with many prefabricated piles in described roadbed, described prefabricated pile hangs down with the length direction of roadbed
Straight and be horizontally disposed with, described prefabricated pile be cylindrical shape, and front end is provided with cone shape pile crown, described prefabricated
Surface is uniform has multiple hole in stake, is perfused with chemistry slurry in described prefabricated pile.
Further technical scheme, described prefabricated pile is steel-pipe pile or reinforced concrete pile.
Further technical scheme, described prefabricated pile is horizontal through roadbed, and squeezes into the one of prefabricated pile
End leaves the opening of perfusion slurry.
Further technical scheme, in the vertical section of roadbed, described prefabricated pile is formed horizontally arranged
Multirow, is crisscross arranged between adjacent upper and lower two row, forms multiple triangular structure.
Present invention also offers a kind of roadbed restorative procedure, comprise the following steps: S1, prefabricated band slip casting
Passage and the steel-pipe pile of hole or reinforced concrete pile；S2, squeeze into the prefabricated pile of level in roadbed side,
The filler of compacted and crowded high sedimentation roadbed, repairs sedimentation and deformation；S3, pressure inject chemistry slurry, change
Slurry solidifies, and reinforces the filler of sedimentation roadbed further；S4, roadbed is carried out maintenance, form height
The road structure of intensity
Further technical scheme, in step s 2, squeezes into the mode of prefabricated pile for the most line by line
Dislocation is squeezed into, and forms multiple triangular structure.
The invention provides a kind of roadbed and repair structure and method, soil compaction effect level laterally driven piles
Effectively combine with grouting and reinforcing, by the compacted roadbed filling of piling of lateral nearly horizontal direction, make
Roadbed in the vertical direction squeezes height, recovers sedimentation and deformation.Logical by the grouting of pre-reservation pressure in prefabricated pile
Road and hole, make grouting and reinforcing more convenient and effective.
Accompanying drawing explanation
Fig. 1 repairs the overall schematic of structure for the roadbed that the present invention provides；
Fig. 2 repairs the elevational schematic of structure for the roadbed that the present invention provides；
The prefabricated pile structural representation that Fig. 3 provides for the present invention.
In figure: 1. roadbed, 2. supercrust, 3. prefabricated pile, 4. roadbed subsidence region, 5. hole, 6.
Pile crown.
Detailed description of the invention
Subgrade settlement refer to the basis of road (highway, railway etc.) due to by extraneous power (earthquake,
Construction Vibration, vehicular load, penetration etc.) or the action of gravity of self and the phenomenon sunk.Road
Gene compactness is inadequate, and the immersion of water softens, and after pavement usage a period of time, roadbed also can sink
Falling into (sedimentation), settling amount Observable is out.
Roadbed reparation is to recover the intensity of roadbed, rigidity and stability by engineering, recovers roadbed
Designed elevation, the physical dimension such as width.Make to deteriorate by recovery technique, the roadbed of pathological changes extensive
Multiple health status, reaches to maintain the purpose having a good transport and communication network and ensureing road geological security.The present invention provides
Roadbed restorative procedure be soil compaction effect level laterally driven piles and grouting and reinforcing effectively combines,
By the compacted roadbed filling of piling of lateral nearly horizontal direction, roadbed in the vertical direction is made to squeeze height, extensive
Multiple sedimentation and deformation.By pre-reservation pressure grouting channel and hole in prefabricated pile, make grouting and reinforcing more
Convenient and effective.
Below in conjunction with the accompanying drawings the present invention is described in detail.
As it is shown in figure 1, the present invention provide a kind of roadbed repair structure include top supercrust and under
The roadbed in portion, roadbed subsidence region is positioned at the top of supercrust and roadbed, be provided with in roadbed many prefabricated
Stake, in the present invention, prefabricated pile can be steel-pipe pile or reinforced concrete pile.Prefabricated pile and the length of roadbed
Direction is vertical and is horizontally disposed with, more preferable than the effect of vertically piling.As it is shown on figure 3, prefabricated pile is circle
Tubular, front end is provided with cone shape pile crown, makes to squeeze into prefabricated pile more quick, reduces resistance.Prefabricated
Surface is uniform has multiple hole in stake, is perfused with chemistry slurry in prefabricated pile.
Prefabricated pile is horizontal through roadbed, and the opening of perfusion slurry is left in the one end squeezing into prefabricated pile.
As in figure 2 it is shown, in the vertical section of roadbed, prefabricated pile forms horizontally arranged multirow, adjacent up and down
Being crisscross arranged between two row, form multiple triangular structure, this frame mode makes grouting evenly,
After slurry solidification, prefabricated pile is more firm to the support of whole roadbed.
The roadbed restorative procedure that the present invention provides comprises the following steps:
S1, prefabricated band slip casting passage and the steel-pipe pile of hole or reinforced concrete pile；
S2, squeeze into the prefabricated pile of level in roadbed side, the filler of compacted and crowded high sedimentation roadbed, repair
Multiple sedimentation and deformation, the mode squeezing into prefabricated pile is squeezed into for dislocation the most line by line, forms multiple triangle
Shape structure；
Lateral piling refers to, by the prefabricated pile laterally squeezing into nearly horizontal direction at Roadbed Soil body, beat
Entering stake is equivalent to make the solid phase grogs volume of Roadbed Soil body and weight to increase, the lateral crowd in-out effects of stake
Necessarily make the ratio relative reduction of gas phase air and liquid phase moisture in roadbed space or hole.Therefore, laterally
Piling is clamp-oned roadbed and is equivalent to apply compacting load on Roadbed Soil surface, completely in terms of mechanics effect
The basic goal of the strengthening roadbed of Effective Compaction Roadbed Soil body can be reached.
S3, pressure inject chemistry slurry, chemistry slurry solidification, reinforce the filler of sedimentation roadbed further.
S4, complete above-mentioned steps after roadbed carried out maintenance, form the road structure of high intensity.
The invention provides a kind of roadbed and repair structure and method, soil compaction of first driving piles, by roadbed side
The prefabricated pile close to horizontal direction, compacted roadbed filling are squeezed in face, reduce air and moisture content in roadbed and account for
According to space or hole, improve roadbed compaction rate.Hit the person prefabricated pile in side direction horizontal direction, permissible
Squeeze elevated formation level filler at vertical direction, reach to recover the purpose of subgrade settlement, make road foundation height mark reach heavy
Designed elevation before fall.By grouting pipe reserved in prefabricated pile and hole, provide for pressure grouting
Passage.Comprehensive lateral piling soil compaction effect and the effect of slip casing by pressure, it is achieved sedimentation subgrade strength and change
The reparation of shape, ensures the stability of roadbed.
The present invention is not limited to above-mentioned preferred forms, and anyone should learn the enlightenment in the present invention
Under the structure change made, every have same or like technical scheme with the present invention, each falls within this
Within the protection domain of invention.
Claims (6)
1. a structure repaired by roadbed, including supercrust and the roadbed of bottom, the roadbed subsidence on top
Region is positioned at the top of supercrust and roadbed, it is characterised in that be provided with many prefabricated piles in described roadbed,
Described prefabricated pile is vertical with the length direction of roadbed and is horizontally disposed with, and described prefabricated pile is cylindric, front
End is provided with cone shape pile crown, and described prefabricated pile surface is uniform has multiple hole, in described prefabricated pile
It is perfused with chemistry slurry.
Structure repaired by a kind of roadbed the most according to claim 1, it is characterised in that: described pre-
Stake processed is steel-pipe pile or reinforced concrete pile.
Structure repaired by a kind of roadbed the most according to claim 1, it is characterised in that: described pre-
Stake processed is horizontal through roadbed, and the opening of perfusion slurry is left in the one end squeezing into prefabricated pile.
Structure repaired by a kind of roadbed the most according to claim 1, it is characterised in that: at roadbed
Vertical section in, described prefabricated pile forms horizontally arranged multirow, staggered between adjacent upper and lower two row sets
Put, form multiple triangular structure.
5. a roadbed restorative procedure, it is characterised in that comprise the following steps:
S1, prefabricated band slip casting passage and the steel-pipe pile of hole or reinforced concrete pile；
S2, squeeze into the prefabricated pile of level in roadbed side, the filler of compacted and crowded high sedimentation roadbed, repair
Multiple sedimentation and deformation；
S3, pressure inject chemistry slurry, chemistry slurry solidification, reinforce the filler of sedimentation roadbed further；
S4, roadbed is carried out maintenance, form the road structure of high intensity.
A kind of roadbed restorative procedure the most according to claim 5, it is characterised in that: in step
In S2, the mode squeezing into prefabricated pile is squeezed into for dislocation the most line by line, forms multiple triangular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510178580.8A CN106320121B (en) | 2015-04-16 | 2015-04-16 | A kind of roadbed repairs structure and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510178580.8A CN106320121B (en) | 2015-04-16 | 2015-04-16 | A kind of roadbed repairs structure and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106320121A true CN106320121A (en) | 2017-01-11 |
| CN106320121B CN106320121B (en) | 2018-08-07 |
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ID=57731958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510178580.8A Expired - Fee Related CN106320121B (en) | 2015-04-16 | 2015-04-16 | A kind of roadbed repairs structure and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740408A (en) * | 2017-09-30 | 2018-02-27 | 朱龙 | A kind of Prefabricated concrete-filled steel tube stake |
| CN112411286A (en) * | 2020-11-09 | 2021-02-26 | 安徽省新路建设工程集团有限责任公司 | Active highway embankment grouting reinforcement structure and construction method |
| CN113622236A (en) * | 2021-08-12 | 2021-11-09 | 温州市市政管理中心 | Roadbed reinforcing device and construction method |
| CN114150543A (en) * | 2021-11-26 | 2022-03-08 | 长沙理工大学 | Pre-disintegration soft rock embankment grouting anti-seepage lifting structure and construction method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110485316A (en) * | 2019-08-27 | 2019-11-22 | 山东交通学院 | A kind of method of multiple slip casting to administer bumping at bridge-head |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| HK1038249A1 (en) * | 1998-06-05 | 2002-03-08 | Vladimir Ronin | A method of stabilising the ground in road construction work. |
| US6409433B1 (en) * | 2000-01-27 | 2002-06-25 | David A. Hubbell | Foundation piles or similar load carrying elements |
| CN2540445Y (en) * | 2002-04-25 | 2003-03-19 | 李毓锦 | Reinforced concrete prefibricated pile |
| CN102127890A (en) * | 2011-03-31 | 2011-07-20 | 湖南恒盾岩土工程注浆科技有限公司 | Reinforcing construction method of existing railway subgrade |
| CN102352582A (en) * | 2011-08-15 | 2012-02-15 | 铁道第三勘察设计院集团有限公司 | Reinforced soil-cement pile strengthening structure of railway roadbed |
| CN203238624U (en) * | 2013-04-24 | 2013-10-16 | 昆山睿基新能源科技有限公司 | Novel steel tube cement pile |
| CN204551161U (en) * | 2015-04-16 | 2015-08-12 | 重庆文理学院 | A kind of roadbed repair structure |
-
2015
- 2015-04-16 CN CN201510178580.8A patent/CN106320121B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| HK1038249A1 (en) * | 1998-06-05 | 2002-03-08 | Vladimir Ronin | A method of stabilising the ground in road construction work. |
| US6409433B1 (en) * | 2000-01-27 | 2002-06-25 | David A. Hubbell | Foundation piles or similar load carrying elements |
| CN2540445Y (en) * | 2002-04-25 | 2003-03-19 | 李毓锦 | Reinforced concrete prefibricated pile |
| CN102127890A (en) * | 2011-03-31 | 2011-07-20 | 湖南恒盾岩土工程注浆科技有限公司 | Reinforcing construction method of existing railway subgrade |
| CN102352582A (en) * | 2011-08-15 | 2012-02-15 | 铁道第三勘察设计院集团有限公司 | Reinforced soil-cement pile strengthening structure of railway roadbed |
| CN203238624U (en) * | 2013-04-24 | 2013-10-16 | 昆山睿基新能源科技有限公司 | Novel steel tube cement pile |
| CN204551161U (en) * | 2015-04-16 | 2015-08-12 | 重庆文理学院 | A kind of roadbed repair structure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740408A (en) * | 2017-09-30 | 2018-02-27 | 朱龙 | A kind of Prefabricated concrete-filled steel tube stake |
| CN112411286A (en) * | 2020-11-09 | 2021-02-26 | 安徽省新路建设工程集团有限责任公司 | Active highway embankment grouting reinforcement structure and construction method |
| CN113622236A (en) * | 2021-08-12 | 2021-11-09 | 温州市市政管理中心 | Roadbed reinforcing device and construction method |
| CN113622236B (en) * | 2021-08-12 | 2022-09-20 | 温州市市政管理中心 | Roadbed reinforcing device |
| CN114150543A (en) * | 2021-11-26 | 2022-03-08 | 长沙理工大学 | Pre-disintegration soft rock embankment grouting anti-seepage lifting structure and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106320121B (en) | 2018-08-07 |
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Granted publication date: 20180807 Termination date: 20190416 |