CN204551161U - A kind of roadbed repair structure - Google Patents
A kind of roadbed repair structure Download PDFInfo
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- CN204551161U CN204551161U CN201520227930.0U CN201520227930U CN204551161U CN 204551161 U CN204551161 U CN 204551161U CN 201520227930 U CN201520227930 U CN 201520227930U CN 204551161 U CN204551161 U CN 204551161U
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- roadbed
- pile
- preformed pile
- described preformed
- repair structure
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model discloses a kind of roadbed repair structure, comprise the supercrust on top and the roadbed of bottom, roadbed subsidence region is positioned at the top of supercrust and roadbed, many preformed piles are provided with in described roadbed, described preformed pile is vertical with the length direction of roadbed and be horizontally disposed with, and described preformed pile is cylindric, and front end is provided with cone shape pile crown, described preformed pile surface is uniform has multiple hole, is perfused with chemical slurry in described preformed pile.The utility model provides a kind of roadbed repair structure, horizontal side is effectively combined to the soil compaction effect of driving piles and grouting and reinforcing, by the compacted roadbed filling of piling of the nearly horizontal direction of side direction, roadbed in the vertical direction is squeezed high, recovers sedimentation and deformation.By pre-reservation pressure grouting channel and hole in preformed pile, make grouting and reinforcing more convenient and effective.
Description
Technical field
The utility model relates to road construction, is specifically related to a kind of roadbed repair structure.
Background technology
Roadbed is the banded structure thing as road surface or track foundation built according to highway or rail route position and certain technical requirements, and be the basis of highway and railway, roadbed is the linear structure thing with soil or building stones build.Roadbed should be built under good geology, the hydrology and weather conditions.From material point, roadbed can be divided into soil subgrade, rock subgrade, soil-stone embankment three kinds.
Due to the effect of the factors such as filler is uneven, filler is bad, filling compaction is insufficient, water content is too high, earthquake, Construction Vibration, vehicular load, penetration, deadweight, there is the FAQs that sedimentation and deformation is road foundation in road foundation.Subgrade settlement must cause the destruction of railroad track and highway pavement, endangers safe traffic.Therefore, the settlement issues of effective Subgrade, has important practical significance for guarantee traffic safety.
At present, Some Domestic scholar has carried out research Roadbed Soil being improved to the aspects such as its intensity by grouting, although there is certain effect, because the degree of compaction of Roadbed Soil body is once more than 80%, grouting is just difficult to effectively carry out, and easily forms local and leaks irrigated area.At present, reinforce Rock And Soil by the means of piling, be mainly used in the punishment of structure foundation, and mainly vertical direction piling.Road foundation deformation solution aspect, the method that less use piling is repaired, has no the engineering method that horizontal side is repaired to piling.
Utility model content
Technical problem to be solved in the utility model is that existing road roadbed repairing effect is bad, easily forms the problem that irrigated area is leaked in local.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is to provide a kind of roadbed repair structure, comprise the supercrust on top and the roadbed of bottom, roadbed subsidence region is positioned at the top of supercrust and roadbed, is provided with many preformed piles in described roadbed, and described preformed pile is vertical with the length direction of roadbed and be horizontally disposed with, described preformed pile is cylindric, front end is provided with cone shape pile crown, and described preformed pile surface is uniform has multiple hole, is perfused with chemical slurry in described preformed pile.
Further technical scheme, described preformed pile is steel pipe pile or reinforced concrete pile.
Further technical scheme, described preformed pile is horizontal through roadbed, and the opening of perfusion slurry is left in the one end squeezing into preformed pile.
Further technical scheme, in the vertical section of roadbed, described preformed pile forms horizontal multirow, is crisscross arranged, forms multiple triangular structure between adjacent upper and lower two row.
The utility model provides a kind of roadbed repair structure, horizontal side is effectively combined to the soil compaction effect of driving piles and grouting and reinforcing, by the compacted roadbed filling of piling of the nearly horizontal direction of side direction, roadbed in the vertical direction is squeezed high, recovers sedimentation and deformation.By pre-reservation pressure grouting channel and hole in preformed pile, make grouting and reinforcing more convenient and effective.
Accompanying drawing explanation
The overall schematic of the roadbed repair structure that Fig. 1 provides for the utility model;
The elevational schematic of the roadbed repair structure that Fig. 2 provides for the utility model;
The preformed pile structural representation that Fig. 3 provides for the utility model.
In figure: 1. roadbed, 2. supercrust, 3. preformed pile, 4. roadbed subsidence region, 5. hole, 6. pile crown.
Detailed description of the invention
Subgrade settlement refers to the phenomenon that the basis of road (highway, railway etc.) sinks owing to being subject to extraneous power (earthquake, Construction Vibration, vehicular load, penetration etc.) or the Action of Gravity Field of self.Roadbed because of degree of compaction inadequate, the immersion of water is softened, and after pavement usage a period of time, depression (sedimentation) also can occur roadbed, and settling amount Observable is out.
Roadbed reparation recovers the intensity of roadbed, rigidity and stability by engineering, recovers the physical dimension such as design elevation, width of roadbed.Make generation deterioration by recovery technique, state got well by the roadbed of pathology, reach the object that is unimpeded and guarantee road geological security that maintains traffic.The roadbed restorative procedure that the utility model provides effectively is combined to the soil compaction effect of driving piles and grouting and reinforcing horizontal side, by the compacted roadbed filling of piling of the nearly horizontal direction of side direction, roadbed in the vertical direction squeezed high, recover sedimentation and deformation.By pre-reservation pressure grouting channel and hole in preformed pile, make grouting and reinforcing more convenient and effective.
Below in conjunction with accompanying drawing, the utility model is described in detail.
As shown in Figure 1, a kind of roadbed repair structure that the utility model provides comprises the supercrust on top and the roadbed of bottom, roadbed subsidence region is positioned at the top of supercrust and roadbed, is provided with many preformed piles in roadbed, and in the utility model, preformed pile can be steel pipe pile or reinforced concrete pile.Preformed pile is vertical with the length direction of roadbed and be horizontally disposed with, than the better effects if of vertically piling.As shown in Figure 3, preformed pile is cylindric, and front end is provided with cone shape pile crown, makes to squeeze into preformed pile more quick, reduces resistance.Preformed pile surface is uniform has multiple hole, is perfused with chemical slurry in preformed pile.
Preformed pile is horizontal through roadbed, and the opening of perfusion slurry is left in the one end squeezing into preformed pile.As shown in Figure 2, in the vertical section of roadbed, preformed pile forms horizontal multirow, be crisscross arranged between adjacent upper and lower two row, form multiple triangular structure, this frame mode make grouting evenly, it is more firm that slurry solidifies the support of rear preformed pile to whole roadbed.
The roadbed restorative procedure that the utility model provides comprises the following steps:
The steel pipe pile of S1, prefabricated band slip casting passage and hole or reinforced concrete pile;
S2, squeeze into the preformed pile of level in roadbed side, the filler of compacted and crowded high sedimentation roadbed, repair sedimentation and deformation, the mode squeezing into preformed pile for from the bottom up line by line dislocation squeeze into, form multiple triangular structure;
Side direction piling refers to the preformed pile by squeezing into nearly horizontal direction in the side direction of Roadbed Soil body, driven pile is equivalent to the solid phase grogs volume that makes Roadbed Soil body and weight increases, and the side direction crowd in-out effects of stake must make that gas phase air in roadbed space or hole is relative with the ratio of liquid phase moisture to be reduced.Therefore, side direction piling is clamp-oned roadbed and is equivalent in mechanics effect at Roadbed Soil surface applying compacting load, can reach the basic goal of the strengthening roadbed of Effective Compaction Roadbed Soil body completely.
S3, pressure inject chemical slurry, and chemical slurry solidifies, and reinforce the filler of sedimentation roadbed further.
S4, complete above-mentioned steps after maintenance is carried out to roadbed, form the road structure of high strength.
The utility model provides a kind of roadbed repair structure and method, and soil compaction of first driving piles, squeezes into the preformed pile close to horizontal direction by roadbed side, compacted roadbed filling, reduces space or hole that in roadbed, air and moisture content occupy, improves the compaction rate of roadbed.Hitting the person preformed pile in side direction horizontal direction, can squeeze elevated formation level filler at vertical direction, reaches the object recovering subgrade settlement, the design elevation before making road foundation height mark reach sedimentation.By grouting pipe reserved in preformed pile and hole, for pressure grouting provides passage.The effect of comprehensive side direction piling soil compaction effect and slip casing by pressure, realizes the reparation of sedimentation subgrade strength and distortion, ensures the stability of roadbed.
The utility model is not limited to above-mentioned preferred forms, and anyone should learn the structure change made under enlightenment of the present utility model, and every have identical or close technical scheme with the utility model, all falls within protection domain of the present utility model.
Claims (4)
1. a roadbed repair structure, comprise the supercrust on top and the roadbed of bottom, roadbed subsidence region is positioned at the top of supercrust and roadbed, it is characterized in that, be provided with many preformed piles in described roadbed, described preformed pile is vertical with the length direction of roadbed and be horizontally disposed with, described preformed pile is cylindric, front end is provided with cone shape pile crown, and described preformed pile surface is uniform has multiple hole, is perfused with chemical slurry in described preformed pile.
2. a kind of roadbed repair structure according to claim 1, is characterized in that: described preformed pile is steel pipe pile or reinforced concrete pile.
3. a kind of roadbed repair structure according to claim 1, is characterized in that: described preformed pile is horizontal through roadbed, and the opening of perfusion slurry is left in the one end squeezing into preformed pile.
4. a kind of roadbed repair structure according to claim 1, it is characterized in that: in the vertical section of roadbed, described preformed pile forms horizontal multirow, is crisscross arranged, forms multiple triangular structure between adjacent upper and lower two row.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520227930.0U CN204551161U (en) | 2015-04-16 | 2015-04-16 | A kind of roadbed repair structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520227930.0U CN204551161U (en) | 2015-04-16 | 2015-04-16 | A kind of roadbed repair structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204551161U true CN204551161U (en) | 2015-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520227930.0U Expired - Fee Related CN204551161U (en) | 2015-04-16 | 2015-04-16 | A kind of roadbed repair structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN204551161U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105350418A (en) * | 2015-12-04 | 2016-02-24 | 中国铁道科学研究院铁道建筑研究所 | Subgrade strengthening method |
| CN106320121A (en) * | 2015-04-16 | 2017-01-11 | 重庆文理学院 | Subgrade repair structure and subgrade repair method |
| CN108360352A (en) * | 2018-01-31 | 2018-08-03 | 杨波 | A kind of horizontal prestressing force slip casting restorative procedure of crack on road disease |
-
2015
- 2015-04-16 CN CN201520227930.0U patent/CN204551161U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106320121A (en) * | 2015-04-16 | 2017-01-11 | 重庆文理学院 | Subgrade repair structure and subgrade repair method |
| CN106320121B (en) * | 2015-04-16 | 2018-08-07 | 重庆文理学院 | A kind of roadbed repairs structure and method |
| CN105350418A (en) * | 2015-12-04 | 2016-02-24 | 中国铁道科学研究院铁道建筑研究所 | Subgrade strengthening method |
| CN108360352A (en) * | 2018-01-31 | 2018-08-03 | 杨波 | A kind of horizontal prestressing force slip casting restorative procedure of crack on road disease |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20180416 |