CN203923927U - The high fill culvert load-relieving structure of highway based on sealed plastic container - Google Patents
The high fill culvert load-relieving structure of highway based on sealed plastic container Download PDFInfo
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- CN203923927U CN203923927U CN201420233607.XU CN201420233607U CN203923927U CN 203923927 U CN203923927 U CN 203923927U CN 201420233607 U CN201420233607 U CN 201420233607U CN 203923927 U CN203923927 U CN 203923927U
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- load
- culvert
- plastic container
- sealed plastic
- conduit
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Abstract
The utility model provides a kind of highway based on sealed plastic container high fill culvert load-relieving structure, comprises and is arranged in the load reduction groove that top of conduit bankets, and in load reduction groove, heap is filled with sealed plastic container and sand, and sealed plastic container and sand form off-load district.The utility model gradually reduces by sealed plastic container in off-load district, cause the off-load district top differential settlement that bankets, produce relieving arch effect, making the most of embankment of top of conduit be passed to culvert both sides bankets, significantly improve off-load effect, effectively reduce culvert stressed asymmetric and reduce the top of conduit pressure concentration degree of banketing, can solve top of conduit cracking phenomena; In addition, the utility model construction is simple, and applicability is wide, and sealed plastic container can adopt waste drinking bottles, with low cost, and environmental protection.
Description
Technical field
The utility model belongs to highway engineering technical field, is specifically related to the high fill culvert load-relieving structure of a kind of highway based on sealed plastic container.
Background technology
On high filling section culvert, cover the depth of fill many more than 10 m, what have even can exceed 50 m.Because filled load is large, complicated topographical conditions, the stressed and deformation characteristic of culvert is often comparatively complicated, contains body and exists stress to concentrate and the problem such as differential settlement, easily causes various diseases in various degree, has saying of " ten contain nine splitting " at engineering circles.These diseases gently cause culvert cracking, seepage or ponding, heavy cause culvert structure destroy, even occur collapsing, have a strong impact on the normal use of road.
At present, to the off-load measure of the high fill culvert of highway mainly taking reinforcement off-load method as main.Reinforcement off-load method refers to that the bulk density of banketing that makes artificially to contain in top top local height and width range is less than both sides and bankets, and forms off-load hole; Above off-load hole, lay muscle material, muscle material two ends are anchored in respectively that both sides are closely knit bankets, and reaches and contains top off-load object simultaneously.Alleviate to some extent although reinforcement off-load method is contained top stress concentration phenomenon to high fill culvert, it still has the following disadvantages: it is limited that (1) contains top reinforcement off-load effect, contains top cracking phenomena and still exists; (2) reinforcement material adopts grid material conventionally, and due to its creep properties, off-load effect decays in time; (3) the inside and outside earth pillar stiffness difference of culvert is not obvious, and muscle material efficiency is not not fully exerted; (4) will obtain the off-load hole height that good off-load effect needs larger, construction and cost are higher; (5) easily cause the stressed asymmetry of culvert, cause culvert to contain top and leave and split with wall status.
Utility model content
For the deficiencies in the prior art, the utility model provides a kind of significantly improving to contain top off-load effect and the highway high fill culvert load-relieving structure of construction simply, based on sealed plastic container.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
The high fill culvert load-relieving structure of highway based on sealed plastic container, comprises and is arranged in the load reduction groove that top of conduit bankets, and in load reduction groove, heap is filled with sealed plastic container and sand, and sealed plastic container and sand form off-load district.
Above-mentioned off-load district is positioned at directly over top of conduit.
Above-mentioned load reduction groove width equates with culvert width, and the degree of depth is 1/20 ~ 1/30 of the top of conduit depth of fill.
Above-mentioned sealed plastic container can be waste drinking bottles, and volume is no more than 500ml, and before mixing with sand, in sealed plastic container, atmospheric pressure is 1 standard atmospheric pressure.
Above-mentioned culvert is arch culvert or slab culvert.
Above-mentioned sand particle diameter is 1-3mm.
By gradually reducing of sealed plastic container in off-load district, cause the off-load district top differential settlement that bankets, produce relieving arch effect, make most of filled load be passed to culvert both sides, and along being passed to ground.
Compare with existing reinforcement off-load method, the utlity model has following beneficial effect:
1, gradually reducing by sealed plastic container in off-load district, cause the off-load district top differential settlement that bankets, produce relieving arch effect, making the most of embankment of top of conduit be passed to culvert both sides bankets, significantly improve off-load effect, effectively reduce culvert stressed asymmetric and reduce the top of conduit pressure concentration degree of banketing, can solve top of conduit cracking phenomena.
2, construction is simple, and applicability is wide, and sealed plastic container can adopt waste drinking bottles, with low cost, and environmental protection.
Brief description of the drawings
Fig. 1 is the high fill culvert load-relieving structure of the utility model highway generalized section;
Fig. 2 is the utility model off-load plot structure schematic diagram.
In figure, 1-culvert, 2-bankets, 3-off-load district, 4-ground, 5-load reduction groove, 6-waste drinking bottles, 7-sand.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
See Fig. 1 ~ 2, the utility model is by excavation load reduction groove (5) in (2) are banketed at culvert (1) top, and to the middle landfill waste drinking bottles (6) of load reduction groove (5) and sand (7), waste drinking bottles (6) and sand (7) form off-load district (3), and off-load district (3) pass through relieving arch effect to culvert (1) off-load.Off-load district (3) is positioned at directly over culvert (1), and adopt waste drinking bottles (6) to mix rear backfill with sand (7) and enter load reduction groove (5), and grinding compacting.Culvert (1) can be slab culvert or arch culvert.
Load reduction groove (5) for embankment filled soil (2) while filling reserved or banket (2) filled and excavated with excavator afterwards, load reduction groove (5) width equates with culvert (1) width, and load reduction groove (5) degree of depth is culvert (1) top 1/20 ~ 1/30 of (2) height that bankets.
When after adopting waste drinking bottles (6) and sand (7) to mix, load reduction groove (5) is entered in backfill, successively fill, every layer thickness is no more than 50cm, and rolls.Waste drinking bottles (6) volume is no more than 500ml, and in bottle, atmospheric pressure is 1 standard atmospheric pressure, bottle sealing; Sand (7) particle diameter is 1-3mm.
In the present embodiment, the concrete building process of culvert load-relieving structure is as follows:
The first step, banketing (2) by related specifications requirement railway embankment using in culvert (1) both sides, fills to containing top.
Second step continues railway embankment using and bankets (2) more than the plane of culvert top, and culvert (1) both sides railway embankment using is banketed (2) highly for containing 1/20 of the upper railway embankment using depth of fill in top, at the reserved load reduction groove not filling (3) equating with culvert width in culvert top.
The 3rd step, making the interior atmospheric pressure of waste drinking bottles (6) is 1 standard atmospheric pressure, and seals a bottle, and mixes with sand (7).
The 4th step, enters mixed waste drinking bottles (6) and sand (7) in load reduction groove (3) according to every layer of successively backfill of 30cm, and compacting, forms off-load district (3).
The 5th step, continues by successively railway embankment using banket (2) of related specifications requirement off-load district (3) end face is above.
In conjunction with Fig. 1, analyze the utility model principle from load transfer mechanism:
In the time that embankment loading is above off-load district (3), because off-load district (3) hollow bottle is progressively compressed, cause the larger difference sedimentation of off-load district (3) and both sides embankment filled soil (2).This relative settlement makes top embankment filled soil produce soil arching effect, makes part embankment be passed to culvert both sides and bankets (2), and be passed to ground (4), from having reduced in fact culvert (1) load.
It is the high fill culvert of 16.0 m that the utility model is applied to certain speedway one place's soil filled on the top of culvert height, and culvert is slab culvert, high 1.5 m.Containing end ground is gravelly soil.On the contiguous similar stratum of this culvert, one place's soil filled on the top of culvert height is the of the same type high fill culvert of 14.8 m, adopts existing reinforcement off-load method to carry out off-load processing, and two kinds of operating modes are monitored respectively to comparative analysis.Monitoring result shows, compared with existing reinforcement off-load method, the utility model method can make soil filled on the top of culvert pressure reduce more than 45%, and banket the everywhere amplitude of variation of pressure of top of conduit is significantly less than existing reinforcement off-load method operating mode.
Above-mentioned detailed description of the invention is a preferred embodiment of the present utility model; be not for limiting enforcement of the present utility model and claim scope; all equivalences of making according to the content described in the utility model patent protection scope change and modify, and all should be included in the utility model patent claim.
Claims (7)
1. the high fill culvert load-relieving structure of the highway based on sealed plastic container, is characterized in that:
Comprise and be arranged in the load reduction groove that top of conduit bankets, in load reduction groove, heap is filled with sealed plastic container and sand, and sealed plastic container and sand form off-load district.
2. the high fill culvert load-relieving structure of the highway based on sealed plastic container as claimed in claim 1, is characterized in that:
Described off-load district is positioned at directly over top of conduit.
3. the high fill culvert load-relieving structure of the highway based on sealed plastic container as claimed in claim 1, is characterized in that:
Described load reduction groove width equates with culvert width, and the degree of depth is 1/20～1/30 of the top of conduit depth of fill.
4. the high fill culvert load-relieving structure of the highway based on sealed plastic container as claimed in claim 1, is characterized in that:
Described sealed plastic container volume is no more than 500ml.
5. the high fill culvert load-relieving structure of the highway based on sealed plastic container as claimed in claim 1, is characterized in that:
Described sealed plastic container is waste drinking bottles.
6. the high fill culvert load-relieving structure of the highway based on sealed plastic container as claimed in claim 1, is characterized in that:
Described sand particle diameter is 1-3mm.
7. the high fill culvert load-relieving structure of the highway based on sealed plastic container as claimed in claim 1, is characterized in that:
Described culvert is arch culvert or slab culvert.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420233607.XU CN203923927U (en) | 2014-05-08 | 2014-05-08 | The high fill culvert load-relieving structure of highway based on sealed plastic container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420233607.XU CN203923927U (en) | 2014-05-08 | 2014-05-08 | The high fill culvert load-relieving structure of highway based on sealed plastic container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203923927U true CN203923927U (en) | 2014-11-05 |
Family
ID=51819781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420233607.XU Expired - Fee Related CN203923927U (en) | 2014-05-08 | 2014-05-08 | The high fill culvert load-relieving structure of highway based on sealed plastic container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203923927U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103938558A (en) * | 2014-05-08 | 2014-07-23 | 湖北工业大学 | Highway high-fill culvert unloading method and unloading structure based on sealed plastic container |
-
2014
- 2014-05-08 CN CN201420233607.XU patent/CN203923927U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103938558A (en) * | 2014-05-08 | 2014-07-23 | 湖北工业大学 | Highway high-fill culvert unloading method and unloading structure based on sealed plastic container |
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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 |
Granted publication date: 20141105 Termination date: 20170508 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |