CN204875410U - High and cold permafrost region active service road bed adds face structure of paving - Google Patents
High and cold permafrost region active service road bed adds face structure of paving Download PDFInfo
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- CN204875410U CN204875410U CN201520486501.5U CN201520486501U CN204875410U CN 204875410 U CN204875410 U CN 204875410U CN 201520486501 U CN201520486501 U CN 201520486501U CN 204875410 U CN204875410 U CN 204875410U
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Abstract
The utility model relates to a high and cold permafrost region active service road bed adds face structure of paving, from the bottom up are former roadbed structure, slabstone ventilation layer, rubble screed -coat, loaded filter, bed course and road surface structure in proper order, the ventilation pipe has been buried in the rubble screed -coat underground, be provided with the heat preservation heat insulating board in the bed course, waterproofing membrane is laid to the road bed both sides, the waterproofing membrane outside is provided with the road bed bank protection. The utility model relates to a structure has the temperature that can reduce the road bed for a long time to reach the effect of cooling road bed, keep the foundation soil to be in the freeze mode during the building operation, prevent that severe cold district road bed frozen soil from melting the road surface structure that leads to the fact and sinking, have better technological economic benefits.
Description
Technical field
The utility model relates to a kind of alpine meadow region active service roadbed and overlays road structure.Belong to highway engineering field, be applicable to Permafrost Area pavement construction.
Background technology
The main construction problem of Permafrost Area is the thawing depression of frozen soil foundation, because under the corrosion function of building thermal source, ground temperature rise, the ground ice that frozen soil foundation is rich in melts, and forms the thaw bowl of disk like under building foundation.The foundation soil melted, under deadweight and built-loading effect, produces and melts and compression sinkage, cause building deformation, destruction.The significant defense measure adopted has: (1) cushion, namely uses the frost heave soil of coarse sand, gravel etc. non-(weak) frost heave material substitution natural ground; (2) physical-chemical process, namely utilize exchange cation and salinity to the ablation of frost heave, adopt artificial material Ground Treatment soil to change the interaction between native ion and water, and then the water translocation intensity changed in the soil body and freezing point thereof, to reach the effect weakening frost heave; (3) draining water proof method, the i.e. water content of the soil body within the scope of dewatering seasonal frozen ground layer, cut off outer water Source Of Supply and get rid of surface water, preventing foundation soil to be out of shape.Cushion and physical-chemical process can reappear frozen soil when low temperature for many years, and after temperature raises, frozen soil melts and still can impact roadbed; Draining water proof method is once drainage system goes wrong, and roadbed still can sink.
Melt the problem of depression for solving Permafrost Area ground, ensure subgrade soils temperature stabilization, when extremely frigid zones subgrade construction, unit in charge of construction takes different technical measures.As " the frozen earth roadbed cooling structure of large scale of strengthening sheet block stone convective cooling usefulness " (publication number: CN104452508A), by arranging the mode of transversal ventilation plate in bed course, thus cause the heat convection effect of the aspect up and down of sheet block stone, thus reach the effect of cooling roadbed, but this technology only sets up ventilating board, cooling effect also has the space of improving further.And for example " the antifreeze base fabric structure of a kind of frozen earth roadbed waterproof " (notification number: 204266075U), provide a kind of anti-water base cloth, after can preventing frozen soil from melting, water enters in ground, prevents the problem of depression, but once this anti-water base cloth destroys, effect will obviously weaken.
In sum, for permafrost area embankment process, for controlling roadbed temperature further, prevent roadbed settlement, need badly at present a kind of ventilation effect of invention good, there is heat-insulating property, alpine meadow region active service roadbed that subgrade stability is strong overlays road structure.
Summary of the invention
The utility model, for above-mentioned prior art Problems existing, is invented the alpine meadow region active service roadbed that a kind of ventilation effect is good, high insulating effect, good water-proof effect, stability are strong and is overlayed road structure.
In order to realize above-mentioned technical purpose, present invention employs following technical scheme:
A kind of alpine meadow region active service roadbed overlays road structure, is followed successively by former road structure, slabstone ventilating layer, rubble leveling layer, loaded filter, bed course and road surface structare layer from top to bottom; Air chimney is embedded with in rubble leveling layer; Thermal insulation thermal insulation board is provided with in bed course; Roadbed both sides laying water-proof coiled material; Waterproof roll arranged outside has roadbed bank protection.
Air chimney runs through whole roadbed and stretches out roadbed both sides, and cross section is circular or rectangle, is arranged at 1/2 thickness place of rubble leveling layer.
Roadbed bank protection comprises slope protection block, slope aspect lacing wire and horizontal lacing wire, and slope protection block by slope aspect lacing wire and horizontal lacing wire drawknot, and is welded to connect with the lacing wire fixed end stretching into former road structure and road surface structare layer respectively at the bottom of Po Ding and slope.
The front of slope protection block is arranged side by side two fins, is prefabricated concrete block, reserved slope aspect lacing hole and horizontal lacing hole in slope protection block.
Arrange plant biological bag in the groove of the projection formation of adjacent slope protection block, plant biological bag is pasted with slope protection block and is connected, and is filled with planting soil in plant biological bag.
The utility model has following feature and beneficial effect:
(1) slabstone ventilating layer is set in roadbed, and sets up air chimney in rubble leveling layer, strengthen the performance " stack effect " of roadbed, promote the flowing of air, strengthen highway subgrade stability.
(2) lay thermal insulation thermal insulation board in roadbed, increase roadbed thermal resistance, when ambient temperature is higher than roadbed internal temperature, external heat can be stoped to roadbed internal delivery, prevent frozen soil in roadbed from melting.
(3) roadbed both sides adopt building block bank protection, and with slope aspect lacing wire and horizontal lacing wire drawknot, plant and transplant turf, namely strengthen the stability of roadbed, increase green coverage simultaneously outside bank protection.
Accompanying drawing explanation
Fig. 1 is that the utility model alpine meadow region active service roadbed overlays road structure schematic diagram;
Fig. 2 is slope protection block structural representation;
In figure: the former road structure of 1-, 2-slabstone ventilating layer, 3-rubble leveling layer, 4-air chimney, 5-loaded filter, 6-thermal insulation thermal insulation board, 7-bed course, 8-road surface structare layer, 9-waterproof roll, 10-slope protection block, the lacing wire of 11-slope aspect, the horizontal lacing wire of 12-, 13-plant biological bag, 14-bank protection bed course, 15-planting soil, 16-transplants turf, 17-lacing wire fixed end, 18-slope aspect lacing hole, the horizontal lacing hole of 19-.
Detailed description of the invention
Former roadbed treatment construction, slope protection block prefabricated construction the utility model are not repeated, the concrete embodiment of setting forth the utility model and relating to structure.
Fig. 1 is that the utility model alpine meadow region active service roadbed overlays road structure schematic diagram, with reference to shown in Fig. 1, alpine meadow region active service roadbed overlays road structure, on former road structure 1, lay slabstone ventilating layer 2, rubble leveling layer 3, loaded filter 5, bed course 7, road surface structare layer 8 successively from top to bottom, wherein arrange air chimney 4 at rubble leveling layer 3, road structure is stretched out at air chimney 4 two ends; Thermal insulation thermal insulation board 6 is arranged in bed course 7; At two sides side slope laying water-proof coiled material 9, pitching bed course 14, lay slope protection block 10 and be fixed on former road structure 1 by horizontal lacing wire 12 and slope aspect lacing wire 11, be provided with plant biological bag 15 in groove between slope protection block 10, and after plant biological bag 15 filling planting soil, plant transplanting turf 16.
Fig. 2 is slope protection block structural representation, and with reference to shown in Fig. 2, the front of slope protection block 10 is arranged side by side two fins, and slope protection block defines level trough after laying, and is convenient to arrange planting soil.Horizontal and vertical equal preformed hole in slope protection block 10.
Construction method is as follows: the former road structure 1 of cutouts, and former road structure 1 is laid the slabstone ventilating layer 2 of 0.8m, and slabstone ventilating layer 2 points is two-layer to be filled and impact-rolling, slabstone intensity is not less than 30MPa, and building stones resistance toly should freeze cleaning, without weathering, scale, crackle, without grating, particle diameter 15cm ~ 30cm.Slabstone ventilating layer 2 higher slice lays rubble leveling layer 3, rubble leveling layer 3 size controlling is at 5cm ~ 10cm, every layer of laying depth is generally 15cm ~ 20cm, the rubble of making answers grating even, often lay one deck, adopt road roller back and forth to roll, generally roll and be no less than 4 times, wheelspan overlap joint is not less than 50cm.When lay to rubble leveling layer 3 gross thickness 1/2 time, laterally air chimney 4 is installed along roadbed, air chimney 4 adopts the concrete pipe of internal diameter 400mm, wall thickness 60mm, road structure 200mm ~ 250mm is stretched out at air chimney 4 two ends, and the rubble leveling layer 3 of residue 1/2 thickness has been laid by the mode then adopting layering to lay.
Rubble leveling layer 3 is laid loaded filter 5, loaded filter 5 adopts thickness to be 3mm, and tension rises intensity 2.5KN/m
2, the anti-filter geotextile laying of elongation rate 25% ~ 100% forms.Loaded filter 5 is laid the chisley soil of 10cm thickness and sandy soil sandy soil as bed course 7, and grinding compacting, then thermal insulation thermal insulation board 6 is laid, thermal insulation thermal insulation board 6 adopts 6cmXPS warming plate, XPS warming plate take polystyrene resin as supplementary material and the polymer that raw material adds other, by heating mixing simultaneously injecting catalyst, then extrusion molding extrusion molding and the rigid foam plate that manufactures.Then continue to lay chisley soil and sandy soil sandy soil bed course 7 to road structure bottom absolute altitude on thermal insulation thermal insulation board 6.
Slabstone ventilating layer 2, rubble leveling layer 3 bed course 7 are filled out paving and are often filled out paving certain altitude, in roadbed both sides along slope aspect laying water-proof coiled material 9, waterproof roll 9 adopts TPO (TPO) synthetic resin EP rubbers and polypropylene combined to be base-material, add antioxidant, new type waterproof coiled material that age resistor, softening agent are made, thickness 1.2mm, then adopts 1:2.5 masonry of cement mortar bank protection bed course 14.
Adopt C40 concreting road surface structare layer 8, at interval, road surface structare layer 8 both sides preset lace fixed end 17 when building.
Slope aspect lacing hole 18 and horizontal lacing hole 19 is preset in slope protection block 10, general using laterally 5 pieces, slope aspect 5 pieces of slope protection blocks 10 adopt slope aspect tension rib 11 and horizontal tension rib 12 to fix as a unit, the diameter of slope aspect tension rib 11 and horizontal tension rib 12 is 8mm, then by fixing slope protection block whole unit handling to side slope place, slope aspect tension rib 11 between welding slope protection block unit and horizontal tension rib 12, and fix with M30 mortar, and side slope bottom slope protection block unit lacing wire fixed end 17 and former road structure are fixed.
In slope protection block 10 groove that projection is formed side by side, paste plant biological bag 13, plant biological bag 13 adopts non-woven fabrics and sunshade net to make, and then in plant biological bag 13, inserts planting soil 15, and plants turfing 16 kinds to side slope both sides.
Claims (5)
1. alpine meadow region active service roadbed overlays a road structure, it is characterized in that being followed successively by former road structure (1), slabstone ventilating layer (2), rubble leveling layer (3), loaded filter (5), bed course (7) and road surface structare layer (8) from top to bottom; Air chimney (4) is embedded with in rubble leveling layer; Thermal insulation thermal insulation board (6) is provided with in bed course; Roadbed both sides laying water-proof coiled material (9); Waterproof roll (9) arranged outside has roadbed bank protection.
2. alpine meadow region active service roadbed according to claim 1 overlays road structure, it is characterized in that: air chimney (4) runs through whole roadbed and stretches out roadbed both sides, and cross section is circular or rectangle, is arranged at 1/2 thickness place of rubble leveling layer.
3. alpine meadow region active service roadbed according to claim 1 overlays road structure, it is characterized in that: roadbed bank protection comprises slope protection block (10), slope aspect lacing wire (11) and horizontal lacing wire (12), slope protection block (10) by slope aspect lacing wire (11) and horizontal lacing wire (12) drawknot, and is welded to connect with the lacing wire fixed end stretching into former road structure (1) and road surface structare layer (8) respectively at the bottom of Po Ding and slope.
4. alpine meadow region active service roadbed according to claim 3 overlays road structure, it is characterized in that: the front of slope protection block is arranged side by side two fins, for prefabricated concrete block, reserved slope aspect lacing hole (18) and horizontal lacing hole (19) in slope protection block.
5. alpine meadow region active service roadbed according to claim 3 overlays road structure, it is characterized in that: in the groove of the projection formation of adjacent slope protection block (10), plant biological bag (13) is set, plant biological bag (13) is pasted with slope protection block (10) and is connected, and is filled with planting soil in plant biological bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520486501.5U CN204875410U (en) | 2015-07-08 | 2015-07-08 | High and cold permafrost region active service road bed adds face structure of paving |
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| CN201520486501.5U CN204875410U (en) | 2015-07-08 | 2015-07-08 | High and cold permafrost region active service road bed adds face structure of paving |
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| CN201520486501.5U Expired - Fee Related CN204875410U (en) | 2015-07-08 | 2015-07-08 | High and cold permafrost region active service road bed adds face structure of paving |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735328A (en) * | 2016-04-25 | 2016-07-06 | 杭州江润科技有限公司 | Construction method of stepped mortar-rubble-paved slope of ventilation embankment |
| CN105887606A (en) * | 2016-05-20 | 2016-08-24 | 杭州江润科技有限公司 | Heat-preservation and water-seepage compound type blind ditch of deep trench of severely cold and frozen earth area and construction method of heat-preservation and water-seepage compound type blind ditch |
| CN105908587A (en) * | 2016-04-28 | 2016-08-31 | 镇江市高等专科学校 | Roadbed thermal insulation construction method in frozen earth area |
| CN110004911A (en) * | 2019-03-29 | 2019-07-12 | 中国科学院寒区旱区环境与工程研究所 | Protect the cold mattress system and its construction method of embedded object in a kind of Permafrost Area |
| CN110777592A (en) * | 2019-11-06 | 2020-02-11 | 中铁第一勘察设计院集团有限公司 | Low embankment ventilation pipe roadbed structure in plateau permafrost region |
| CN111021175A (en) * | 2020-01-19 | 2020-04-17 | 马建生 | Construction method of heat-preservation roadbed |
| CN112160208A (en) * | 2020-08-13 | 2021-01-01 | 北京市政路桥股份有限公司 | Filling roadbed construction method suitable for water-rich low-lying permafrost region |
| CN113026462A (en) * | 2021-03-22 | 2021-06-25 | 中国科学院西北生态环境资源研究院 | Temperature control structure suitable for road bed and side slope engineering in permafrost region |
-
2015
- 2015-07-08 CN CN201520486501.5U patent/CN204875410U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735328A (en) * | 2016-04-25 | 2016-07-06 | 杭州江润科技有限公司 | Construction method of stepped mortar-rubble-paved slope of ventilation embankment |
| CN105908587A (en) * | 2016-04-28 | 2016-08-31 | 镇江市高等专科学校 | Roadbed thermal insulation construction method in frozen earth area |
| CN105887606A (en) * | 2016-05-20 | 2016-08-24 | 杭州江润科技有限公司 | Heat-preservation and water-seepage compound type blind ditch of deep trench of severely cold and frozen earth area and construction method of heat-preservation and water-seepage compound type blind ditch |
| CN110004911A (en) * | 2019-03-29 | 2019-07-12 | 中国科学院寒区旱区环境与工程研究所 | Protect the cold mattress system and its construction method of embedded object in a kind of Permafrost Area |
| CN110004911B (en) * | 2019-03-29 | 2024-02-13 | 中国科学院西北生态环境资源研究院 | Cold pad system for protecting buried object in permafrost region and construction method thereof |
| CN110777592A (en) * | 2019-11-06 | 2020-02-11 | 中铁第一勘察设计院集团有限公司 | Low embankment ventilation pipe roadbed structure in plateau permafrost region |
| CN111021175A (en) * | 2020-01-19 | 2020-04-17 | 马建生 | Construction method of heat-preservation roadbed |
| CN112160208A (en) * | 2020-08-13 | 2021-01-01 | 北京市政路桥股份有限公司 | Filling roadbed construction method suitable for water-rich low-lying permafrost region |
| CN113026462A (en) * | 2021-03-22 | 2021-06-25 | 中国科学院西北生态环境资源研究院 | Temperature control structure suitable for road bed and side slope engineering in permafrost region |
| CN113026462B (en) * | 2021-03-22 | 2022-02-01 | 中国科学院西北生态环境资源研究院 | Temperature control structure suitable for road bed and side slope engineering in permafrost region |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20151216 Termination date: 20200708 |