CN109958015A - A kind of frozen earth roadbed safeguard structure - Google Patents
A kind of frozen earth roadbed safeguard structure Download PDFInfo
- Publication number
- CN109958015A CN109958015A CN201711399748.3A CN201711399748A CN109958015A CN 109958015 A CN109958015 A CN 109958015A CN 201711399748 A CN201711399748 A CN 201711399748A CN 109958015 A CN109958015 A CN 109958015A
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- China
- Prior art keywords
- layer
- safeguard structure
- frozen earth
- earth roadbed
- berm
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/06—Methods or arrangements for protecting foundations from destructive influences of moisture, frost or vibration
-
- 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
Abstract
The invention discloses a kind of frozen earth roadbed safeguard structures, including concrete bedding, concrete bedding front is equipped with draining sluice way, concrete bedding side is equipped with round gravel slope surface, the round gravel face toe is equipped with transverse drainage tube layer, transverse drainage tube layer bottom is equipped with anti-freeze expansion filler, anti-freeze expansion filler bottom is equipped with thermal insulation berm, the thermal insulation berm side is equipped with ragstone layer, it rockfills equipped with solid base the ragstone layer bottom, concrete bedding upper surface is equipped with impermeable geotextiles, the impermeable geotextiles upper surface is equipped with bituminous concrete water shutoff layer, the bituminous concrete water shutoff layer upper surface is equipped with road bed, the road bed upper surface is equipped with anti-skidding deceleration strip, surface water isolation layer is equipped on the left of the anti-skidding deceleration strip, surface water isolation layer bottom is equipped with roadbed filling layer.This kind of frozen earth roadbed safeguard structure structure is simple, and practical function is able to satisfy functional need of the subgrade protection industry to frozen earth roadbed safeguard structure.
Description
Technical field
The invention belongs to subgrade protection technical field of structures, and in particular to a kind of frozen earth roadbed safeguard structure.
Background technique
Ever-frozen ground refers under natural endowment that frozen state continues 3 years or 3 years or more soils.Ever-frozen ground about takes up an area
The 26% of ball land area is mainly distributed on the cold district of high latitude or High aititude.There are about 1,900,000 squares for Chinese ever-frozen ground
Kilometer is mainly distributed on Qinghai-Tibet Platean, Daxing'an Mountainrange and Xiaoxing'an Mountains and Altai Mountains, Tianshan Mountains, the Qilian mountains and happiness horse
Draw the mountainous regions such as refined mountain.The surface layer of ever-frozen ground, warm season melt, and cold season freezes, referred to as season active layer.The top circle of ever-frozen layer
Limit is known as frozen soil upper limit, and lower limit is known as frozen soil lower limit.The upper limit formed under natural endowment is known as natural permafrost table, through remarkable
The new upper limit formed for activity is known as anthropogenic heating.Ever-frozen ground can be divided by vertical configuration situation: Upper Limit of Permafrost and season
Save the ever-frozen ground of active layer linking；The ever-frozen ground of Upper Limit of Permafrost and season active layer divergence.Ever-frozen ground is by flat
EDS maps situation can be divided into frozen soil for years and island-shaped permafrost soil.Ever-frozen ground is classified from engineering viewpoint, can be melted by road
Grade classification of sinking freezes soil, ice-rich permafrost, full frost soil more for few frost soil, and contains soil five class of ice sheet.Frozen soil classification such as following table,
Coarse-grained soil refers to crushed gravel class soil, gravel, coarse sand, middle sand in table；Cohesive soil includes sandy loam, lam and clay.
Because existing frozen earth roadbed safeguard structure is set in frozen earth roadbed reinforcing, thermal insulation berm design and subgrade drainage
The place of promotion still in need on meter meets people so we need a kind of frozen earth roadbed safeguard structure to solve the above problems
Demand.
Summary of the invention
The purpose of the present invention is to provide a kind of frozen earth roadbed safeguard structures, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the invention provides the following technical scheme: a kind of frozen earth roadbed safeguard structure, including concrete
Bedding, concrete bedding front are equipped with draining sluice way, and concrete bedding side is equipped with round gravel slope surface, the circle
Gravel face toe is equipped with transverse drainage tube layer, and transverse drainage tube layer bottom is equipped with anti-freeze expansion filler, and the anti-freeze expansion is filled out
Expect that bottom is equipped with thermal insulation berm, the thermal insulation berm side is equipped with ragstone layer, and the ragstone layer bottom is rockfilled equipped with solid base,
The solid base rockfills bottom equipped with water penetration foundation stone, and concrete bedding upper surface is equipped with impermeable geotextiles, described
Impermeable geotextiles upper surface is equipped with bituminous concrete water shutoff layer, and the bituminous concrete water shutoff layer upper surface is equipped with road bed,
The road bed upper surface is equipped with anti-skidding deceleration strip, is equipped with surface water isolation layer, the surface water on the left of the anti-skidding deceleration strip
Isolation layer bottom is equipped with roadbed filling layer.
Preferably, the transverse drainage tube layer includes transverse drain, accepts groove, and the transverse drain is arranged in cross
To draining tube layer center, the undertaking groove is arranged in transverse drainage bottom of the tube.
Preferably, the thermal insulation berm and horizontal plane angle are 30 °.
Preferably, the thermal insulation berm includes seep water native drainage blanket, insulating layer, and the native drainage blanket setting of the infiltration is being kept the temperature
Berm upper surface, the insulating layer setting is in native drainage blanket bottom of seeping water.
Preferably, the transverse drainage tube layer is connected with draining drainage deferent.
Preferably, the draining sluice way is set as 2, and 2 draining sluice ways are symmetrical set respectively mixed
Solidifying soil matrix bed two sides.
Preferably, the impermeable geotextiles are embedded in bituminous concrete water shutoff layer bottom.
Preferably, the bituminous concrete water shutoff layer is fixedly connected with road bed by cement.
Technical effect and advantage of the invention: 1, this kind of frozen earth roadbed safeguard structure is equipped in 11 two sides of round gravel slope surface and protects
Warm berm, it is possible to reduce into the cooling capacity of subgrade soil, prevent differential frost heave；
2, the concrete Subgrade bed design of this kind of frozen earth roadbed safeguard structure is bulk solid, has both played part insulation effect, and bedding
Self weight can offset part frost-heave force again；
3, this kind of frozen earth roadbed safeguard structure is equipped with bituminous concrete water shutoff layer and anti-skidding deceleration strip in its road bed, can reinforce
Road traveling degree of safety.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is transverse drain schematic diagram of a layer structure of the invention；
Fig. 3 is thermal insulation berm structural schematic diagram of the invention.
In figure: 1, solid base rockfills；2, sluice way is drained；3, concrete bedding；4, impermeable geotextiles；5, pitch is mixed
Solidifying grave water layer；6, surface water isolation layer；7, anti-skidding deceleration strip；8, road bed；9, roadbed filling layer；10, ragstone layer；11, circle
Gravel slope surface；12, transverse drainage tube layer；1201, transverse drain；1202, groove is accepted；13, anti-freeze expansion filler；14, it keeps the temperature
Berm；15, water penetration foundation stone.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of frozen earth roadbed safeguard structure as shown in Figure 1, Figure 2 and Figure 3, including concrete bedding 3,
3 front of concrete bedding is equipped with draining sluice way 2, and 3 side of concrete bedding is equipped with round gravel slope surface 11, the circle
11 bottom of gravel slope surface is equipped with transverse drainage tube layer 12, and 12 bottom of transverse drainage tube layer is equipped with anti-freeze expansion filler 13, described
13 bottom of anti-freeze expansion filler is equipped with thermal insulation berm 14, and 14 side of thermal insulation berm is equipped with ragstone layer 10,10 bottom of ragstone layer
Portion is equipped with solid base and rockfills 1, and the solid base rockfills 1 bottom equipped with water penetration foundation stone 15, table on the concrete bedding 3
Face is equipped with impermeable geotextiles 4, and impermeable 4 upper surface of geotextiles is equipped with bituminous concrete water shutoff layer 5, the pitch coagulation
5 upper surface of grave water layer is equipped with road bed 8, and 8 upper surface of road bed is equipped with anti-skidding deceleration strip 7, and the anti-skidding deceleration strip 7 is left
Side is equipped with surface water isolation layer 6, and 6 bottom of surface water isolation layer is equipped with roadbed filling layer 9.
Specifically, the transverse drainage tube layer 12 includes transverse drain 1201, accepts groove 1202, the transverse drainage
The setting of pipe 1201 is arranged in 12 center of transverse drainage tube layer, the undertaking groove 1202 in 1201 bottom of transverse drain.
Specifically, the thermal insulation berm 14 is 30 ° with horizontal plane angle.
Specifically, the thermal insulation berm 14 includes seep water native drainage blanket 1401, insulating layer 1402, the native drainage blanket of the infiltration
1401 settings are in 14 upper surface of thermal insulation berm, and the setting of insulating layer 1402 is in 1401 bottom of native drainage blanket of seeping water.
Specifically, the transverse drainage tube layer 12 is connected with draining 2 pipe of sluice way.
Specifically, the draining sluice way 2 is set as 2,2 draining sluice ways 2 are symmetrical set respectively
3 two sides of concrete bedding.
Specifically, the impermeable geotextiles 4 are embedded in 5 bottom of bituminous concrete water shutoff layer.
Specifically, the bituminous concrete water shutoff layer 5 is fixedly connected with road bed 8 by cement.
Working principle: when in use, surface water isolation layer 6 completely cuts off surface water and does not enter this kind of frozen earth roadbed safeguard structure
Roadbed, anti-skidding deceleration strip 7 increase road surfaces frictional force, improve driving safety degree, and concrete bedding 3 is the basis of safeguard structure,
It drains sluice way 2 and water flow is introduced into discharge, round gravel slope surface 11 is used as bedding side structure body, the drainpipe of transverse drainage tube layer 12
Drainage efficiency is increased, anti-freeze expansion filler 13 prevents basic filler frost heave, and the thermal insulation berm 14 of 10 two sides of ragstone layer prevents from protecting
There is differential expansion in structure, and bituminous concrete water shutoff layer 5 and impermeable geotextiles 4 reinforce drainage efficiency, and solid base rockfills 1
Frozen soil and the safeguard structure are completely cut off, and have kept the subgrade protection structure more firm.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (8)
1. a kind of frozen earth roadbed safeguard structure, including concrete bedding (3), it is characterised in that: concrete bedding (3) front
Equipped with draining sluice way (2), concrete bedding (3) side is equipped with round gravel slope surface (11), the round gravel slope surface (11)
Bottom is equipped with transverse drainage tube layer (12), and transverse drainage tube layer (12) bottom is equipped with anti-freeze expansion filler (13), described antifreeze
Swollen filler (13) bottom is equipped with thermal insulation berm (14), and thermal insulation berm (14) side is equipped with ragstone layer (10), the ragstone layer
(10) bottom is equipped with solid base and rockfills (1), and the solid base rockfills (1) bottom equipped with water penetration foundation stone (15), described mixed
Solidifying soil matrix bed (3) upper surface is equipped with impermeable geotextiles (4), and impermeable geotextiles (4) upper surface is equipped with bituminous concrete
Water shutoff layer (5), the bituminous concrete water shutoff layer (5) upper surface are equipped with road bed (8), and road bed (8) upper surface is equipped with
Anti-skidding deceleration strip (7), anti-skidding deceleration strip (7) left side are equipped with surface water isolation layer (6), surface water isolation layer (6) bottom
Portion is equipped with roadbed filling layer (9).
2. a kind of frozen earth roadbed safeguard structure according to claim 1, it is characterised in that: the transverse drainage tube layer (12)
Including transverse drain (1201), groove (1202) are accepted, the transverse drain (1201) is arranged in transverse drainage tube layer
(12) center, the undertaking groove (1202) are arranged in transverse drain (1201) bottom.
3. a kind of frozen earth roadbed safeguard structure according to claim 1, it is characterised in that: the thermal insulation berm (14) and water
Plane Angle is 30 °.
4. a kind of frozen earth roadbed safeguard structure according to claim 1, it is characterised in that: the thermal insulation berm (14) includes
Seep water soil drainage blanket (1401), insulating layer (1402), and table is arranged on thermal insulation berm (14) in the native drainage blanket (1401) of the infiltration
Face, insulating layer (1402) setting is in native drainage blanket (1401) bottom of seeping water.
5. a kind of frozen earth roadbed safeguard structure according to claim 1, it is characterised in that: the transverse drainage tube layer (12)
It is connected with draining sluice way (2) pipe.
6. a kind of frozen earth roadbed safeguard structure according to claim 1, it is characterised in that: the draining sluice way (2) sets
2 are set to, 2 draining sluice ways (2) are symmetrical set respectively in concrete bedding (3) two sides.
7. a kind of frozen earth roadbed safeguard structure according to claim 1, it is characterised in that: the impermeable geotextiles (4)
It is embedded in bituminous concrete water shutoff layer (5) bottom.
8. a kind of frozen earth roadbed safeguard structure according to claim 1, it is characterised in that: the bituminous concrete water shutoff layer
(5) it is fixedly connected with road bed (8) by cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711399748.3A CN109958015A (en) | 2017-12-22 | 2017-12-22 | A kind of frozen earth roadbed safeguard structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711399748.3A CN109958015A (en) | 2017-12-22 | 2017-12-22 | A kind of frozen earth roadbed safeguard structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109958015A true CN109958015A (en) | 2019-07-02 |
Family
ID=67018807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711399748.3A Pending CN109958015A (en) | 2017-12-22 | 2017-12-22 | A kind of frozen earth roadbed safeguard structure |
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| CN (1) | CN109958015A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2160336C2 (en) * | 1999-03-01 | 2000-12-10 | Дальневосточный государственный университет путей сообщения | Earth road bed on permafrost base |
| CN2787725Y (en) * | 2004-12-07 | 2006-06-14 | 中国科学院寒区旱区环境与工程研究所 | Composite roadbed for slope protection |
| CN103510441A (en) * | 2013-10-16 | 2014-01-15 | 江苏省镇江市路桥工程总公司 | Three-dimensional-drainage roadbed structure for preventing water damage of road in cold region and construction method thereof |
| CN203429523U (en) * | 2013-08-14 | 2014-02-12 | 中国科学院寒区旱区环境与工程研究所 | Heat-preservation and water-permeation roadbed structure in arctic-alpine place |
| 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 |
| CN206538636U (en) * | 2016-12-30 | 2017-10-03 | 中铁十四局集团第二工程有限公司 | Waterproof railway bed |
-
2017
- 2017-12-22 CN CN201711399748.3A patent/CN109958015A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2160336C2 (en) * | 1999-03-01 | 2000-12-10 | Дальневосточный государственный университет путей сообщения | Earth road bed on permafrost base |
| CN2787725Y (en) * | 2004-12-07 | 2006-06-14 | 中国科学院寒区旱区环境与工程研究所 | Composite roadbed for slope protection |
| CN203429523U (en) * | 2013-08-14 | 2014-02-12 | 中国科学院寒区旱区环境与工程研究所 | Heat-preservation and water-permeation roadbed structure in arctic-alpine place |
| CN103510441A (en) * | 2013-10-16 | 2014-01-15 | 江苏省镇江市路桥工程总公司 | Three-dimensional-drainage roadbed structure for preventing water damage of road in cold region and construction method thereof |
| 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 |
| CN206538636U (en) * | 2016-12-30 | 2017-10-03 | 中铁十四局集团第二工程有限公司 | Waterproof railway bed |
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Application publication date: 20190702 |
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