CN206428543U - A kind of frozen earth roadbed insulation discharge structure - Google Patents
A kind of frozen earth roadbed insulation discharge structure Download PDFInfo
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- CN206428543U CN206428543U CN201621462592.XU CN201621462592U CN206428543U CN 206428543 U CN206428543 U CN 206428543U CN 201621462592 U CN201621462592 U CN 201621462592U CN 206428543 U CN206428543 U CN 206428543U
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- gravel
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- groove
- discharge structure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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Abstract
The utility model is related to a kind of frozen earth roadbed insulation discharge structure.Highway subgrade builds the nature for changing insulated stream, when highway engineering pumping equipment is bad, often result in embankment toe or cutting gutter lateral sulcus ponding, the phenomenons such as horizontal infiltration, cut slope infiltration and subgrade soils excessive moisture of the generation along substrate, cause roadbed to produce the diseases such as thaw collapse, frost heave and side slope slump.Discharge structure of the present utility model is set on the outside of curb along line direction, includes the crushed-gravel groove and the dry-laid rubble ditch on top of bottom；The groove arm of crushed-gravel groove is vertical slots arm, and bottom is located at below frozen soil upper limit, and filled with crushed-gravel, crushed-gravel bottom is provided with the perforated plastic pipe along line direction；Dry-laid rubble ditch is recessed groove, and both sides have slope, are equipped with dry-laid rubble.The utility model can effectively handle surface water and seepage in underground and melt water, the principal element for thoroughly blocking permafrost region disease to produce.
Description
Technical field
The utility model is related to a kind of subgrade drainage structure, and in particular to a kind of frozen earth roadbed insulation discharge structure.
Background technology
Building for highway subgrade, changes the nature of insulated stream, when highway engineering pumping equipment is bad, often
Embankment toe or cutting gutter lateral sulcus ponding are caused, horizontal infiltration, cut slope of the generation along substrate seep water and subgrade soils are excessive
The phenomenons such as humidity, more heat has been stored up because the precipitation of Permafrost Area is concentrated in temperature higher June to September, water,
When water penetrates into and passes through subgrade and pavement and substrate, the heat exchange action produced by its heat release and the heat absorption of substrate frozen soil promotees
Melt frozen soil.Winter, the water in foundation soil freezed volumetric expansion, therefore again because of weather severe cold, caused roadbed to produce thaw collapse, freeze
The diseases such as swollen and side slope slump.
Further, since the heat absorption of bituminous paving strongly and retardance evaporation, change original Heat And Water Balance under roadbed
State, and then the change of its underpart soil temperature is influenceed, cause ever-frozen ground to be brought rapidly up and melt.Engineering practice shows, freezes
After the generation of earth roadbed disease is melted mainly due to frozen soil, caused by roadbed, the migration aggregation of ground internal moisture.Therefore,
The generation temperature of subgrade defect is inducement, and moisture is core.
The content of the invention
The purpose of this utility model is to provide a kind of frozen earth roadbed insulation discharge structure, can effectively handle surface water and
Seepage in underground and melt water, the principal element for thoroughly blocking permafrost region disease to produce.
The technical scheme that the utility model is used for：
A kind of frozen earth roadbed insulation discharge structure, it is characterised in that：
The discharge structure is set on the outside of curb along line direction, includes the crushed-gravel groove and the laid dry piece on top of bottom
Stone ditch；
The groove arm of crushed-gravel groove is vertical slots arm, and bottom is located at below frozen soil upper limit, filled with crushed-gravel, crushed-gravel bottom
It is provided with the perforated plastic pipe along line direction；
Dry-laid rubble ditch is recessed groove, and both sides have slope, are equipped with dry-laid rubble.
Crushed-gravel trench bottom is provided with the precast concrete pedestal that section takes the shape of the letter U.
The land side of crushed-gravel groove is provided with warming plate and composite geo-membrane, and crushed-gravel bottom land is wrapped up along backwater side channel arm
Portion, and extend on the side meeting water；
The side that meets water of crushed-gravel groove is provided with permeable geotextiles.
It is equipped with below the dry-laid rubble of dry-laid rubble ditch in Base with Sand Gravel Cushion, Base with Sand Gravel Cushion and is equipped with one layer of reinforcement composite earth
Work film.
The dash low bank between fields of clayey is provided with the outside of dry-laid rubble ditch.
The utility model has advantages below：
Gutter structure of the present utility model uses dry-laid rubble flexible structure, with stronger adaptive deformation ability, and
And good water penetration can also be kept after multigelation circulation, collects aqueous and frost resistance.On bottom sewer basis embedment frozen soil
The following 20cm of limit, waterproof and thermal insulation structure is used close to roadbed side, can prevent that the heat that water leaking-in and frozen soil are brought after melting is incoming
In roadbed body, using crushed-gravel filling in sewer, decapacitation has collects aqueous well, moreover it is possible to effectively cut off capillary water, prevents from freezing
It is swollen.Concentrated and the larger section of longitudinal slope in roadbed charge for remittance, dash low bank between fields can discharge a part of surface water in ground in time, prevent charge for remittance
The performance in excessive influence gutter.
Brief description of the drawings
Fig. 1 is the utility model structure chart.
In figure, 1- curbs, 2- dry-laid rubbles, 3- Base with Sand Gravel Cushion, 4- reinforcement composite geo-membranes, 5- composite geo-membranes, 6- is protected
Warm plate, 7- crushed-gravels, the permeable geotextiles of 8-, 9- dash low banks between fields, 10- above-ground routes, 11- frozen soil upper limits, 12- perforated plastic pipes, 13- is pre-
Concrete pedestal processed.
Embodiment
The utility model is described in detail with reference to embodiment.
Permafrost Area gutter will can not only drain surface water, be formed after also melting seepage in underground and frozen soil
Water drain, make it away from roadbed, while to have certain adaptive deformation ability in structure, and one is played to frozen soil around
Fixed insulation effect, reduces thermal agitation to greatest extent.
A kind of frozen earth roadbed insulation discharge structure that the utility model is related to, sets along line direction in the outside of curb 1, wraps
Include the crushed-gravel groove of bottom and the dry-laid rubble ditch on top.
The groove arm of crushed-gravel groove is vertical slots arm, and bottom is located at frozen soil upper limit below 11, filled with crushed-gravel 7, crushed-gravel 7
Bottom is provided with the perforated plastic pipe 12 along line direction.Crushed-gravel trench bottom is provided with the concrete soil matrix that section takes the shape of the letter U
Seat 13.The land side of crushed-gravel groove is provided with warming plate 6 and composite geo-membrane 5, and crushed-gravel trench bottom is wrapped up along backwater side channel arm,
And extend on the side meeting water；The side that meets water of crushed-gravel groove is provided with permeable geotextiles 8.
Dry-laid rubble ditch is recessed groove, and both sides have slope, are equipped with dry-laid rubble 2.Lay the lower section of dry-laid rubble 2
One layer of reinforcement composite geo-membrane 4 is equipped with grittiness bed course 3, Base with Sand Gravel Cushion 3.Clayey is provided with the outside of dry-laid rubble ditch
Dash low bank between fields 9.
According to permafrost region drainage requirement, gutter is using wide shallow structure, and bottom of trench compressional wave is consistent with gradient incline.Sewer width
With gutter bottom of trench with width, embedded depth of foundation is 20cm below the upper limit, and interior is clean crushed-gravel, and bottom is provided with the perforated plastics of Φ 15
Pipe, warming plate and composite geo-membrane are laid close to roadbed body side, and insulation material uses extrusion molding foam-board（XPS）, upstream face one
Lay geotextiles in side.Dash low bank between fields preferably uses clay or coarse-grained soil placement in layers, and is compacted using small-sized compacting equipment.
Content of the present utility model is not limited to cited by embodiment, and those of ordinary skill in the art are new by reading this practicality
Type specification and any equivalent conversion taken technical solutions of the utility model, are claim institute of the present utility model
Cover.
Claims (5)
1. a kind of frozen earth roadbed insulation discharge structure, it is characterised in that：
The discharge structure is in curb（1）Outside is set along line direction, includes the crushed-gravel groove and the laid dry piece on top of bottom
Stone ditch；
The groove arm of crushed-gravel groove is vertical slots arm, and bottom is located at frozen soil upper limit（11）Hereinafter, filled with crushed-gravel（7）, crushed-gravel
（7）Bottom is provided with the perforated plastic pipe along line direction（12）；
Dry-laid rubble ditch is recessed groove, and both sides have slope, are equipped with dry-laid rubble（2）.
2. a kind of frozen earth roadbed insulation discharge structure according to claim 1, it is characterised in that：
Crushed-gravel trench bottom is provided with the precast concrete pedestal that section takes the shape of the letter U（13）.
3. a kind of frozen earth roadbed insulation discharge structure according to claim 1, it is characterised in that：
The land side of crushed-gravel groove is provided with warming plate（6）And composite geo-membrane（5）, crushed-gravel bottom land is wrapped up along backwater side channel arm
Portion, and extend on the side meeting water；
The side that meets water of crushed-gravel groove is provided with permeable geotextiles（8）.
4. a kind of frozen earth roadbed insulation discharge structure according to claim 1, it is characterised in that：
The dry-laid rubble of dry-laid rubble ditch（2）Lower section is equipped with Base with Sand Gravel Cushion（3）, Base with Sand Gravel Cushion（3）Inside it is equipped with one layer of reinforcement
Composite geo-membrane（4）.
5. a kind of frozen earth roadbed insulation discharge structure according to claim 1, it is characterised in that：
The dash low bank between fields of clayey is provided with the outside of dry-laid rubble ditch（9）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621462592.XU CN206428543U (en) | 2016-12-29 | 2016-12-29 | A kind of frozen earth roadbed insulation discharge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621462592.XU CN206428543U (en) | 2016-12-29 | 2016-12-29 | A kind of frozen earth roadbed insulation discharge structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206428543U true CN206428543U (en) | 2017-08-22 |
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ID=59584237
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621462592.XU Active CN206428543U (en) | 2016-12-29 | 2016-12-29 | A kind of frozen earth roadbed insulation discharge structure |
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| CN (1) | CN206428543U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108301485A (en) * | 2018-02-07 | 2018-07-20 | 长沙理工大学 | A kind of sewer and preparation method thereof |
-
2016
- 2016-12-29 CN CN201621462592.XU patent/CN206428543U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108301485A (en) * | 2018-02-07 | 2018-07-20 | 长沙理工大学 | A kind of sewer and preparation method thereof |
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