CN208701440U - A kind of antifreeze drainage system of seasonal frost region side slope of embankment - Google Patents
A kind of antifreeze drainage system of seasonal frost region side slope of embankment Download PDFInfo
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- CN208701440U CN208701440U CN201820913422.1U CN201820913422U CN208701440U CN 208701440 U CN208701440 U CN 208701440U CN 201820913422 U CN201820913422 U CN 201820913422U CN 208701440 U CN208701440 U CN 208701440U
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- Prior art keywords
- roadbed
- drainpipe
- side slope
- embankment
- soil
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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 discloses a kind of antifreeze drainage system of seasonal frost region side slope of embankment, including the trapezoidal roadbed of coarse-grained soil (1), TGXG (2), lateral drainpipe (3) with holes, drainpipe (4), composite water drain-proof plate (5), composite water drain-proof plate is by composite geo-membrane (5a), three V dimensional core (5b) and drainage geotextiles (5c) composition, edging layer (6), insulation board (7), artificial grass (8).The utility model, which is used, is laid with composite water drain-proof plate (5) in roadbed bottom tunneling boring, maximum freezes depths and sets laterally drainpipe (3) with holes, roadbed top surface tunneling boring is laid with TGXG (2), the trapezoidal roadbed of coarse-grained soil (1) sloped sides connect cohesive soil edging layer, covering and heat insulating plate (7) on edging layer.The utility model structure is simple, can effectively reduce roadbed humidity, improves the overall stiffness of roadbed, reduces seasonal frost region road disease, has promotion prospect.
Description
Technical field
The utility model relates to the field of road in civil engineering, antifreeze particularly with regard to a kind of seasonal frost region side slope of embankment
Drainage system.
Background technique
China is third frozen soil big country in the world, and wherein High aititude frozen soil then occupies the first in the world, and frozen soil area accounts for about territory
The 75% of area, the frost zone that winter generation is freezed, spring and summer melts are freezing throughout the wide territory to the north of the Yangtze river basin
Soil area, the meeting of water is freezed and is melted in soil；To spring, with the rising of temperature, the soil body after freezing is opened from upper layer
Beginning to melt, but the lower layer of frozen soil layer not yet dissolves, moisture can not descend to seep, and increase water content of soil, leads to strength reduction, once
The ablation of ice intrusive body is at water in the soil body, and the soil body fails complete discharging consolidation, will make superstructure generation sink deformation and
Phenomena such as road thaw collapse, frost boiling；To winter, subgrade soils temperature is down to zero degrees celsius hereinafter, a part of liquid water in subgrade soils
Freeze to become ice, the water in soil is reduced, and matric potential reduces.Under the effect of soil matrix potential gradient, the non-freezing zone moisture of roadbed
Constantly migrated to freezing front, sharp side attachment change of moisture content is violent, especially when groundwater level depth is shallower, roadbed height compared with
When low, total moisture content has raising by a relatively large margin in roadbed ontology, is likely to occur ice sheet at freezing front；Roadbed generates uneven
Even frost heave will cause subgrade deformation to crack, and will cause pavement cracking；Seasonal frost region roadbed generates frozen swell and melt settlement under unfreezing
Deformation, unfreezing lead to road surface premature failure, generate longitudinal crack, and snowmelt runoff seeps under crack, so that freeze injury is deepened, lead
It causes road frost boiling, emit mud.
Summary of the invention
In view of the above problems, the present invention discloses a kind of antifreeze drainage system of seasonal frost region side slope of embankment, including coarse-grained soil is trapezoidal
Roadbed (1), TGXG (2), laterally drainpipe (3) with holes, drainpipe (4), composite water drain-proof plate (5), edging layer (6) are protected
Warm plate (7), artificial grass (8).It is characterized in that, the sloped sides of the trapezoidal roadbed of the coarse-grained soil (1) connect cohesive soil packet
Boundary layer (6), covering and heat insulating plate (7) on edging layer (6), roadbed top surface tunneling boring are laid with TGXG (2), roadbed it is maximum freeze it is deep
Place is laid with laterally drainpipe (3) with holes, and tunneling boring is laid with one layer of composite water drain-proof plate (5) within the scope of roadbed bottom width, finally
Beautify side slope in insulation board (7) upper berth artificial grass (8).
A kind of antifreeze drainage system of seasonal frost region side slope of embankment, characterized in that transverse direction drainpipe with holes (3)
It is made of igelite, and appearance wraps up permeable geotextiles, the diameter of aperture is 50mm, laterally drainpipe (3) with holes
It connects drainpipe (4) and the water in side slope is discharged to gutter.
A kind of antifreeze drainage system of seasonal frost region side slope of embankment, characterized in that the foundation soil and embankment filled soil
Between composite water drain-proof plate (5) by composite geo-membrane (5a), three V dimensional core (5b) and drainage geotextiles (5c) composition, wherein
Upwards, drainage geotextiles (5c) are downward for composite geo-membrane (5a).
Beneficial effects of the present invention: the utility model is combined using composite geo-membrane, three V dimensional core and drainage geotextiles,
The effect of three is given full play to, moisture in ground and pavement structure is blocked to enter embankment noumenon, is enriched in using drainpipe exclusion
The spring that maximum freezes depths melts liquid water, the especially upper roadbed soil body humidity of embankment is reduced, to improve seasonal frost region roadbed
Freezing tolerance improves subgrade strength, reduces seasonal frost region the Frost Hazard of Road, solves the specific question of seasonal frost region roadbed.
The utility model takes full advantage of the characteristic of the raising roadbed overall stiffness of TGXG, and roadbed overall stiffness mentions
The cracking of subgrade deformation caused by frost heave can be effectively reduced in height, reduces the destruction of unfreezing road pavement, effectively anti-
Control the Frost Hazard of Road.
The utility model structure is simple, can effectively reduce the humidity of roadbed, improves the overall stiffness of roadbed, reduces season
Freeze the road disease in area, reasonably combining drainage system and heat-insulation system is a kind of cost-effective measure, has and promotes
Prospect.
Detailed description of the invention:
A kind of antifreeze drainage system organigram of seasonal frost region side slope of embankment of Fig. 1.
Fig. 2 composite water drain-proof plate partial schematic diagram.
The enlarged diagram of Fig. 3 TGXG.
Specific embodiment:
The present invention will be further explained below with reference to the attached drawings.
According to Fig. 1, it can be seen that, a kind of antifreeze drainage system of seasonal frost region side slope of embankment is by the trapezoidal roadbed of coarse-grained soil (1), geotechnique
Grid (2), lateral drainpipe (3) with holes, drainpipe (4), composite water drain-proof plate (5), edging layer (6), insulation board (7), manually
Turf (8) composition, tunneling boring is laid with one layer of compound anti-row within the scope of foundation soil original ground roadbed bottom width when roadbed filling
Water plate (5), subgrade soils is filled to road maximum on composite water drain-proof plate and freezes deep absolute altitude, is laterally laid with draining with holes along roadbed
Pipe continues filling roadbed soil to design embankment absolute altitude, is laid with TGXG (2) on the tunneling boring of roadbed top surface on roadbed.Embankment
Two sides use cohesive soil edging layer, are covered on it with insulation board (7), and insulation board can play waterproof thermal-insulated effect.
The substrate composite water drain-proof plate (5) being laid between embankment filled soil and foundation soil, composite water drain-proof plate is by composite earthwork
Film (5a), three V dimensional core (5b) and drainage geotextiles (5c) composition, it is desirable that composite geo-membrane (5a) upwards, drainage geotextiles
(5c) is downward.Composite geo-membrane (5a) can play good impermeable role, and resistance to hydrostatic pressure power is greater than 100kPa；Drainage geotextiles
(5c) mass area ratio is not less than 200g/m2, ground can be prevented to invade three V dimensional steel wire rack, keep compound guarded drainage
Plate (5) draining steady in a long-term.
Determine the inbuilt maximum deep position of jelly of composite water drain-proof plate, maximum Road Freezing depth depth is obtained by local weather monitoring
Arrive, when no meteorological record, can be calculated by empirical equation formula, freeze depths in maximum and be laid with transverse drain (3), drainpipe by
Igelite is made, and appearance wraps up permeable geotextiles, and the diameter of aperture is 50mm, and two pipe junctions should carry out sealing
Layer protects leak, and laterally the water in side slope is discharged fast into gutter by drainpipe (3) connection drainpipe (4) with holes, utilizes draining
The spring that pipe excludes to be enriched in maximum jelly depths melts liquid water, reduces the especially upper roadbed soil body humidity of embankment.At embankment slope foot
Gutter is set, is conducive to ejectment, drainage rainwater, to reduce transient state saturation region range.Continue filling roadbed soil, is filled to roadbed and sets
Height is set, roadbed is rolled, rolls to design requirement is met, is laid with TGXG, TGXG (2) can effectively improve soil
Body and rib Interband interaction form the TGXG soil body complex with higher entirety degree, at the bottom of when being laid with TGXG
Face is answered smooth, closely knit, should generally be tiled, is straightened, must not crimp, twist together, two adjacent width TGXG need to overlap 0.2m, and edge
Roadbed laterally carries out interspersed connection with No. 8 iron wires every 1 meter to TGXG overlap, and on the grid of laying, every
1.5-2m is fixed on ground with U-shaped nail.
3 layers of progress of sloped sides connection edging layer (6) point of the trapezoidal roadbed of coarse-grained soil (1), first layer uses red clay, thick
Degree takes 1m, and the second layer is charcoal mudrock, and thickness takes 1m, and third layer takes 1.5m using the red clay as bottom, thickness.Bound edge
Bitumen layer is done on layer, side slope two sides are covered using insulation board (7), and insulation board (7) is all good with waterproof performance using keeping the temperature, and intensity
Polyurethane material high, that stability is good is made, with a thickness of 300mm；Seam between insulation board is filled with pitch, finally, spreading
Artificial grass (8) beautifies side slope.
Claims (3)
1. a kind of antifreeze drainage system of seasonal frost region side slope of embankment, including the trapezoidal roadbed of coarse-grained soil (1), TGXG (2), transverse belt
Hole drainpipe (3), drainpipe (4), composite water drain-proof plate (5), edging layer (6), insulation board (7), artificial grass (8)；Its feature
Be: the sloped sides of the trapezoidal roadbed of the coarse-grained soil (1) connect cohesive soil edging layer (6), covering and heat insulating plate on edging layer
(7), roadbed top surface tunneling boring is laid with TGXG (2), is laid with laterally drainpipe (3) with holes in the maximum depths of freezing of roadbed,
Tunneling boring is laid with one layer of composite water drain-proof plate (5) within the scope of roadbed bottom width, finally spreads artificial grass in insulation board (7)
(8) Lai Meihua side slope.
2. a kind of antifreeze drainage system of seasonal frost region side slope of embankment according to claim 1, characterized in that the transverse belt
Hole drainpipe (3) is made of igelite, and appearance wraps up permeable geotextiles, and the diameter of aperture is 50mm, transverse belt
Hole drainpipe (3) connects drainpipe (4) and the water in side slope is discharged to gutter.
3. a kind of antifreeze drainage system of seasonal frost region side slope of embankment according to claim 1, characterized in that foundation soil and embankment
Composite water drain-proof plate (5) between banketing is made of composite geo-membrane (5a), three V dimensional core (5b) and drainage geotextiles (5c),
Wherein upwards, drainage geotextiles (5c) are downward for composite geo-membrane (5a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820913422.1U CN208701440U (en) | 2018-06-13 | 2018-06-13 | A kind of antifreeze drainage system of seasonal frost region side slope of embankment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820913422.1U CN208701440U (en) | 2018-06-13 | 2018-06-13 | A kind of antifreeze drainage system of seasonal frost region side slope of embankment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208701440U true CN208701440U (en) | 2019-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820913422.1U Expired - Fee Related CN208701440U (en) | 2018-06-13 | 2018-06-13 | A kind of antifreeze drainage system of seasonal frost region side slope of embankment |
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| CN (1) | CN208701440U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110184872A (en) * | 2019-06-17 | 2019-08-30 | 佳木斯大学 | A kind of seasonal frozen soil region road structure and its construction method |
| CN110644309A (en) * | 2019-09-26 | 2020-01-03 | 山东大学 | Roadbed drainage structure, system and construction method |
| CN111560799A (en) * | 2019-11-18 | 2020-08-21 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Roadbed heat insulation structure in frozen soil area, construction method and application |
| CN113931025A (en) * | 2021-12-01 | 2022-01-14 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Three-dimensional drainage system and construction method thereof |
-
2018
- 2018-06-13 CN CN201820913422.1U patent/CN208701440U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110184872A (en) * | 2019-06-17 | 2019-08-30 | 佳木斯大学 | A kind of seasonal frozen soil region road structure and its construction method |
| CN110644309A (en) * | 2019-09-26 | 2020-01-03 | 山东大学 | Roadbed drainage structure, system and construction method |
| CN110644309B (en) * | 2019-09-26 | 2022-01-18 | 山东大学 | Roadbed drainage structure, system and construction method |
| CN111560799A (en) * | 2019-11-18 | 2020-08-21 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Roadbed heat insulation structure in frozen soil area, construction method and application |
| CN111560799B (en) * | 2019-11-18 | 2022-07-01 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Roadbed heat insulation structure in frozen soil area, construction method and application |
| CN113931025A (en) * | 2021-12-01 | 2022-01-14 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Three-dimensional drainage system and construction method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190405 Termination date: 20200613 |