CN108086176A - A kind of box culvert backfill structure and earth-filling method - Google Patents
A kind of box culvert backfill structure and earth-filling method Download PDFInfo
- Publication number
- CN108086176A CN108086176A CN201711258352.7A CN201711258352A CN108086176A CN 108086176 A CN108086176 A CN 108086176A CN 201711258352 A CN201711258352 A CN 201711258352A CN 108086176 A CN108086176 A CN 108086176A
- Authority
- CN
- China
- Prior art keywords
- box culvert
- backfills
- buffer strip
- backfill
- knee wall
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
- E01F5/005—Culverts ; Head-structures for culverts, or for drainage-conduit outlets in slopes
Abstract
The invention discloses a kind of box culvert backfill structure and earth-filling method, the arch buffer strip for being included in the setting of box culvert cover top surface, the knee wall set respectively on the outside of the both walls of box culvert are equipped with top back filled region at the top of buffer strip and knee wall.The backfill structure of the present invention can reduce the stress to box culvert structure, while add the safety stock of box culvert structure stabilization.Construction is simple, backfilling material can draw materials nearby, and it is all common rolling apparatus that backfill, which uses equipment, without additional equipment investment.
Description
Technical field
Present invention relates particularly to a kind of box culvert backfill structure and earth-filling methods.
Background technology
Existing box culvert backfill structure is usually using soil-stone material, completely decomposed in the top plate of box culvert and side wall both sides
The backfills material such as material, loess is backfilled.Due to the limitation of orographic condition, the three-dimensional-structure horizontal span of some box culverts is greatly, downstream
Flow direction structure is long, overlying is banketed height, under flood overcurrent operating mode, box culvert by internal water pressure, external water pressure, the gravity that bankets, grind and have
The compound actions such as gravity and vibration force, deformation and service condition are complicated.These boundary conditions all give the stable structure and peace of box culvert
Row for the national games generates large effect or even some box culverts and just generates crack in construction and operation phase concrete structure.
To avoid the above problem, general solution is to increase the structure size of box culvert side wall and top plate, by box culvert
Structure is done more thick and solid, but this way can increase Structural Engineering amount, is increased construction investment, is slowed down speed of application.
The content of the invention
In view of the above-mentioned problems, the present invention is intended to provide one kind can be in the case where not increasing box culvert structure dimensional conditions, guard box
Contain the backfill structure and earth-filling method of stable structure and safety.
The technical solution of the present invention that solves the problems, such as is：A kind of box culvert backfills structure, is included in the setting of box culvert cover top surface
Arch buffer strip, set respectively on the outside of the both walls of box culvert knee wall, at the top of buffer strip and knee wall be equipped with top
Back filled region.
In said program, buffer strip is overarched, by arching top back filled region is allowed to be applied to box culvert vertical direction
Stress transfer to the knee wall of both sides, reduce the stress to box culvert structure, improve the stability of box culvert structure.
Further, the section-bottom width of the buffer strip and box culvert top plate are wide, buffer strip longitudinal length and top plate
Longitudinal length is identical.
Preferably, the buffer strip is backfilled using full blast material or loess.
Further, the knee wall and side wall are contour.
Preferably, the knee wall is rolled using the backfill of high wind material.It enables to support using this backfill material
Wall is more closely knit, and the ability of endurance is stronger.
Further, the top back filled region is backfilled using soil-stone material or full blast material or loess.Top
Backfill conventionally carry out.
Correspondingly, the present invention also provides a kind of earth-filling methods of above-mentioned box culvert backfill structure, include the following steps：
a）High wind material is backfilled on the outside of the box culvert both walls made, symmetrical layered rolling forms closely knit knee wall；
b）Full blast material or loess are backfilled in box culvert cover top surface, and rolls and to form arch buffer strip；
c）It backfills to form top back filled region using soil-stone material or full blast material or loess at the top of buffer strip and knee wall.
The present invention remarkable result be：
1st, backfill structure of the invention can pass to the power suffered by script box culvert top on the backfill knee wall of box culvert both sides, allow branch
Buttress shares the vertical force at top, forms the effect of expected arch, in the case where not increasing box culvert structure size, reduces to box culvert
The stress of structure, while add the safety stock of box culvert structure stabilization.
2nd, in view of backfilling of earthwork posterior settlement, the setting of buffer strip domes can play the work of settlement reservation superelevation
With.
3rd, construction is simple is quick, and backfilling material can draw materials nearby, and it is all common rolling apparatus that backfill, which uses equipment, nothing
Additional equipment investment, there is no increase construction investment.
Description of the drawings
The invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 backfills structure transverse face figure for box culvert of the present invention.
Fig. 2 backfills structural perspective for box culvert of the present invention.
In figure：1- box culverts, 2- buffer strips, 3- knee walls, 4- tops back filled region, 11- top plates, 12- side walls.
Specific embodiment
As shown in Fig. 1~2, a kind of box culvert backfills structure, is included in the arch buffer strip of 11 upper surface of box culvert top plate setting
2nd, the knee wall 3 that is set respectively in the outside of both walls 12 of box culvert 1 is equipped with top back filled region in buffer strip 2 and 3 top of knee wall
4。
The section-bottom width and box culvert top plate 11 of the buffer strip 2 are wide, and 2 longitudinal length of buffer strip is longitudinally long with top plate
It spends identical.The knee wall 3 and side wall 12 are contour.
The buffer strip 2 is backfilled using full blast material or loess.The knee wall 3 is rolled using the backfill of high wind material
It forms.The top back filled region 4 is backfilled using soil-stone material or full blast material or loess.
Correspondingly, the present invention also provides a kind of earth-filling methods of above-mentioned box culvert backfill structure, include the following steps：
a）In 1 both walls of box culvert, the 12 outside backfill high wind material made, symmetrical layered rolling forms closely knit knee wall 3.
b）Full blast material or loess are backfilled in 11 upper surface of box culvert top plate, and rolls and to form arch buffer strip 2.Buffer strip 2
In try not backfill oversize rock material, building stones wedge angle is avoided to cause stress concentration to 1 structure roof 11 of box culvert in roller compaction process
Effect.
c）It backfills to form top using soil-stone material or full blast material or loess in buffer strip 2 and 3 top of knee wall
Back filled region 4.
Claims (7)
1. a kind of box culvert backfills structure, it is characterised in that：It is included in box culvert top plate（11）The arch buffer strip that upper surface is set
（2）, in box culvert（1）Both walls（12）The knee wall that outside is set respectively（3）, in buffer strip（2）And knee wall（3）Top is set
There is top back filled region（4）.
2. box culvert according to claim 1 backfills structure, it is characterised in that：The buffer strip（2）Section-bottom width
With box culvert top plate（11）It is wide, buffer strip（2）Longitudinal length is identical with top plate longitudinal length.
3. box culvert according to claim 1 or 2 backfills structure, it is characterised in that：The buffer strip（2）Using full blast material
Or loess backfills.
4. box culvert according to claim 1 backfills structure, it is characterised in that：The knee wall（3）With side wall（12）It is contour.
5. the box culvert backfill structure according to claim 1 or 4, it is characterised in that：The knee wall（3）Using high wind material
Backfill rolls.
6. box culvert according to claim 1 backfills structure, it is characterised in that：The top back filled region（4）It is mixed using native stone
It closes material or full blast material or loess backfills.
7. a kind of earth-filling method of the backfill of the box culvert as described in the claims 1 structure, it is characterised in that include the following steps：
a）In the box culvert made（1）Both walls（12）Outside backfills high wind material, and symmetrical layered rolling forms closely knit support
Wall（3）；
b）In box culvert top plate（11）Upper surface backfills full blast material or loess, and rolls and to form arch buffer strip（2）；
c）In buffer strip（2）And knee wall（3）Top backfills to form top using soil-stone material or full blast material or loess
Back filled region（4）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711258352.7A CN108086176A (en) | 2017-12-04 | 2017-12-04 | A kind of box culvert backfill structure and earth-filling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711258352.7A CN108086176A (en) | 2017-12-04 | 2017-12-04 | A kind of box culvert backfill structure and earth-filling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108086176A true CN108086176A (en) | 2018-05-29 |
Family
ID=62173429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711258352.7A Pending CN108086176A (en) | 2017-12-04 | 2017-12-04 | A kind of box culvert backfill structure and earth-filling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108086176A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030143029A1 (en) * | 2002-01-30 | 2003-07-31 | Con/Span Bridge Systems Ltd. | Precast concrete culvert system |
| CN202969393U (en) * | 2012-12-12 | 2013-06-05 | 湖北工业大学 | Ribbing load reduction structure of road high hill culvert |
| 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 |
| CN203977308U (en) * | 2014-04-11 | 2014-12-03 | 湖北工业大学 | The high fill culvert load-relieving structure of a kind of mountainous area highway |
| CN106836034A (en) * | 2017-03-09 | 2017-06-13 | 山西省交通科学研究院 | A kind of high roadbed slab culvert flexibility off-load system and construction method |
| CN107012803A (en) * | 2017-06-01 | 2017-08-04 | 湖北工业大学 | High roadbed culvert off-load and the control method and structure for preventing creep |
| CN207619863U (en) * | 2017-12-04 | 2018-07-17 | 中国电建集团中南勘测设计研究院有限公司 | A kind of box culvert backfill structure |
-
2017
- 2017-12-04 CN CN201711258352.7A patent/CN108086176A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030143029A1 (en) * | 2002-01-30 | 2003-07-31 | Con/Span Bridge Systems Ltd. | Precast concrete culvert system |
| CN202969393U (en) * | 2012-12-12 | 2013-06-05 | 湖北工业大学 | Ribbing load reduction structure of road high hill culvert |
| CN203977308U (en) * | 2014-04-11 | 2014-12-03 | 湖北工业大学 | The high fill culvert load-relieving structure of a kind of mountainous area highway |
| 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 |
| CN106836034A (en) * | 2017-03-09 | 2017-06-13 | 山西省交通科学研究院 | A kind of high roadbed slab culvert flexibility off-load system and construction method |
| CN107012803A (en) * | 2017-06-01 | 2017-08-04 | 湖北工业大学 | High roadbed culvert off-load and the control method and structure for preventing creep |
| CN207619863U (en) * | 2017-12-04 | 2018-07-17 | 中国电建集团中南勘测设计研究院有限公司 | A kind of box culvert backfill structure |
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