CN107794817A - A kind of new permafrost area embankment structure - Google Patents
A kind of new permafrost area embankment structure Download PDFInfo
- Publication number
- CN107794817A CN107794817A CN201711078613.7A CN201711078613A CN107794817A CN 107794817 A CN107794817 A CN 107794817A CN 201711078613 A CN201711078613 A CN 201711078613A CN 107794817 A CN107794817 A CN 107794817A
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- CN
- China
- Prior art keywords
- light
- embankment structure
- weight foamed
- layer
- embankment
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- 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.)
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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
-
- 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
- E01C3/04—Foundations produced by soil stabilisation
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/11—Improving or preserving soil or rock, e.g. preserving permafrost soil by thermal, electrical or electro-chemical means
Abstract
The invention discloses a kind of new permafrost area embankment structure, it is related to frozen earth roadbed construction applications, the light-weight foamed concrete insulating course and heat build-up layer of trapezoidal embankment structure and under ground portion including aerial part, light-weight foamed concrete insulating course is located at immediately below embankment structure, heat build-up layer is arranged on the lower section of light-weight foamed concrete insulating course, light-weight foamed concrete insulating course transverse width is longer 2~3m than the width of embankment structure bottom, the embankment structure both sides are provided with hot rod structure, the hot rod structure runs through embankment structure, light-weight foamed concrete insulating course and heat build-up layer, the present invention is combined by active defense with passive protection, control roadbed temperature, solve Frozen soil problems.
Description
Technical field
The present invention relates to a kind of road structure field, more particularly to permafrost area embankment construction applications.
Background technology
With present economic construction and people's daily life demand, China is constantly expanding always in recent years and is improving traffic
Networking.And China territory is vast in territory, south and north, east and west span is very big, and geology and climatic issues are widely different, in the network of communication lines
Many problems in network construction be present, China is Qinghai-Tibet and big Xiaoxinanlin Mountains, at the top of some high mountains of the western and eastern, belong to high latitude
Degree, extremely frigid zones, its soil moisture is equal to or less than zero degrees celsius for a long time, and also contains some solid ices in soil, and this is just
It is so-called frozen soil.Frozen soil is a kind of temperature sensitivity soil body, inevitably runs into soil layer in engineering in permafrost regions construction
Freeze, do not freeze, freezing, melting and melting state not etc..Even if big material composition and water content etc. are protected
Hold it is constant, also will be than having significant changeability and complexity in melt zone in the foundation soil of permafrost region.
In the prior art, when Permafrost Area carries out roadbed filling, active safeguard measure and passive protection can be used to arrange
Apply protection ever-frozen ground.Active safeguard measure can raise frozen soil upper limit, ground is in all the time and stablize frozen state, but its cost
Cost is too high；Passive Insulation increases the thermal resistance that earth's surface heat enters permafrost in theory, can delay ever-frozen ground
Thawing, but while the upper limit is raised, the frozen soils temperature that underlies also generally raises, there is heat accumulation under insulation construction, therefore
It is ineffective.Can not still solve the problems, such as frozen soil disease, therefore, it is necessary to one for independent active safeguard measure or passive protection measure
The new permafrost area embankment structure of kind.
The content of the invention
It is an object of the invention to：Solution permafrost area embankment, which is filled, has the problems such as frost heave and thaw collapse, there is provided one
The new permafrost area embankment structure of kind
The present invention specifically uses following technical scheme to achieve these goals：
A kind of new permafrost area embankment structure, include the bubble of the trapezoidal embankment structure and under ground portion of aerial part
Foam lightweight concrete heat-insulation layer and heat build-up layer, light-weight foamed concrete insulating course are located at immediately below embankment structure, and heat build-up layer is set
Put wider than embankment structure bottom in the lower section of light-weight foamed concrete insulating course, light-weight foamed concrete insulating course transverse width
Spend long 2-3m, the embankment structure both sides are provided with hot rod structure, and the hot rod structure is through embankment structure, light-weight foamed mixed
Coagulate native heat-insulation layer and heat build-up layer.
Further, the hot rod structure includes heat collection structure and thermal-collecting tube；By connecing between thermal-collecting tube and heat collection structure
Head connection, is rigidly connected between hot rod structure bottom and heat collection structure.Hot rod structure forms passive protection, and hot rod structure can have
The help ground radiating of effect, keeps ground temperature.Hot pin is a kind of effect thermal conductive high device, has unique unidirectional heat transfer property,
Heat can only earthward upper end be transmitted from ground lower end, it is impossible to reversely heat transfer, can effectively reduce the soil moisture.
Further, 1~1.5m at the top of embankment structure, hot rod structure top are higher by the top of vertical direction, hot rod structure
Glare problem can be prevented below the visual field.
Further, the material of light-weight foamed concrete insulating course is fiber and waterproof agent composition；Light-weight foamed coagulation
Soil thickness>30cm, pour thickness increases with the increase for pouring density.Light-weight foamed concrete layer forms active defense, its material
Matter thermal conductivity factor is low, can effectively prevent higher temperature from roadbed can be caused to melt, ensure roadbed temperature be always held at 0 DEG C with
Under.
Further, the heat build-up layer is thickness about 12~18cm fine sand layer.
Further, the heat build-up layer length and width dimensions are consistent with light-weight foamed concrete insulating course size.
Further, the filling material of embankment structure is the filler of antifreeze effect.
Further, the material of the thermal-collecting tube is elastomeric material, and internal Heat Conduction Material is ice；The heat collection structure is eight
To the stainless steel structure of joint.
Beneficial effects of the present invention are as follows：
1. the road structure formed by light-weight foamed concrete insulating course, collection thermosphere and hot pin, light-weight foamed concrete
The material fibers and waterproof agent composition of heat-insulation layer, its heat-conducting effect is poor, can prevent temperature from raising, cause ground to melt；Heat
Rod is a kind of effect thermal conductive high device, has unique unidirectional heat transfer property, and heat can only earthward upper end be transmitted from ground lower end,
It can not reversely conduct heat, be processing frozen soil disease, the effective measures of protection of permafrost, frozen soil soil underground temperature can be effectively reduced
Degree；By the passive protection of the active defense of light-weight foamed concrete insulating course and hot pin in combination with getting up, it is ensured that soil
Temperature constancy.
2. light-weight foamed concrete one kind is by foam and the mixed uniformly heat insulating material of cement mortar, its not only density
Small, lightweight is light and durability is strong, low bullet damping property is good, has function of heat insulation, while benzene, formaldehyde are free of in its raw material
Etc. harmful substance, environment will not be polluted, and it is cheap.
3. light-weight foamed concrete insulating course has filled fiber and waterproofing agent, fiber can prevent temperature change from influenceing foam
The structure of lightweight concrete heat-insulation layer, substantial amounts of moisture is contained in frozen soil, waterproofing agent can effectively prevent moisture from melting, solidification
Cause roadbed to expand, damage.
, can be with just below the sight of human eye 4. be higher by 1~1.5 meter of road structure at the top of hot pin in vertical range
The effective generation for preventing glare problem.
Brief description of the drawings
Fig. 1 is the cross-section schematic diagram of the present invention；
Fig. 2 is hot pin top view；
Reference：1- heat build-up layers；The light-weight foamed concrete insulating courses of 2-；3- hot rod structures；4- embankment structures；5- thermal-arrests
Structure；6- thermal-collecting tubes.
Embodiment
In order to which those skilled in the art are better understood from the present invention, below in conjunction with the accompanying drawings with following examples to the present invention
It is described in further detail.
Embodiment 1
A kind of new permafrost area embankment structure, including the trapezoidal embankment structure 4 of aerial part and under ground portion
Light-weight foamed concrete insulating course 2 and heat build-up layer 1, light-weight foamed concrete insulating course 2 are located at immediately below embankment structure 4, gather
Thermosphere 1 is arranged on the lower section of light-weight foamed concrete insulating course 2, and the light-weight foamed transverse width of concrete insulating course 2 is than embankment knot
The long 1m of width of the bottom of structure 4, the both sides of embankment structure 4 are provided with hot rod structure 3, and the hot rod structure 3 runs through embankment knot
Structure 4, light-weight foamed concrete insulating course 2 and heat build-up layer 1.
The hot rod structure 3 includes heat collection structure 5 and thermal-collecting tube 6；Connected between thermal-collecting tube 6 and heat collection structure 5 by joint
Connect, be rigidly connected between the bottom of hot rod structure 3 and heat collection structure 5.
In vertical direction, the top of hot pin knot 3 is higher by the top 0.5m of embankment structure 4.
Light-weight foamed concrete insulating course 2 is to have filled fiber and the light-weight foamed concrete of waterproofing agent；Light-weight foamed coagulation
Native 2 thickness are 20cm.
The heat build-up layer 1 is thickness about fine sand layer.
The filling material of embankment structure 4 is 12cm coarse sands.
The material of the thermal-collecting tube 6 is elastomeric material, and internal Heat Conduction Material is ice；The heat collection structure 5 is eight to joint
Stainless steel structure.
Embodiment 2
A kind of new permafrost area embankment structure, including the trapezoidal embankment structure 4 of aerial part and under ground portion
Light-weight foamed concrete insulating course 2 and heat build-up layer 1, light-weight foamed concrete insulating course 2 are located at immediately below embankment structure 4, gather
Thermosphere 1 is arranged on the lower section of light-weight foamed concrete insulating course 2, and the light-weight foamed transverse width of concrete insulating course 2 is than embankment knot
The long 4m of width of the bottom of structure 4, the both sides of embankment structure 4 are provided with hot rod structure 3, and the hot rod structure 3 runs through embankment knot
Structure 4, light-weight foamed concrete insulating course 2 and heat build-up layer 1.
The hot rod structure 3 includes heat collection structure 5 and thermal-collecting tube 6；Connected between thermal-collecting tube 6 and heat collection structure 5 by joint
Connect, be rigidly connected between the bottom of hot rod structure 3 and heat collection structure 5.
In vertical direction, the top of hot pin knot 3 is higher by the top 2m of embankment structure 4.
Light-weight foamed concrete insulating course 2 is to have filled fiber and the light-weight foamed concrete of waterproofing agent；Light-weight foamed coagulation
Native 2 thickness are 60cm.
The heat build-up layer 1 is thickness about 10cm fine sand layer.
The filling material of embankment structure 4 is gravel.
The material of the thermal-collecting tube 6 is elastomeric material, and internal Heat Conduction Material is ice；The heat collection structure 5 is eight to joint
Stainless steel structure.
Embodiment 3
A kind of new permafrost area embankment structure, including the trapezoidal embankment structure 4 of aerial part and under ground portion
Light-weight foamed concrete insulating course 2 and heat build-up layer 1, light-weight foamed concrete insulating course 2 are located at immediately below embankment structure 4, gather
Thermosphere 1 is arranged on the lower section of light-weight foamed concrete insulating course 2, and the light-weight foamed transverse width of concrete insulating course 2 is than embankment knot
The long 2m of width of the bottom of structure 4, the both sides of embankment structure 4 are provided with hot rod structure 3, and the hot rod structure 3 runs through embankment knot
Structure 4, light-weight foamed concrete insulating course 2 and heat build-up layer 1.
The hot rod structure 3 includes heat collection structure 5 and thermal-collecting tube 6；Connected between thermal-collecting tube 6 and heat collection structure 5 by joint
Connect, be rigidly connected between the bottom of hot rod structure 3 and heat collection structure 5.
In vertical direction, the top of hot pin knot 3 is higher by the top 1m of embankment structure 4.
Light-weight foamed concrete insulating course 2 is to have filled fiber and the light-weight foamed concrete of waterproofing agent；Light-weight foamed coagulation
Native 2 thickness are 45cm.
The heat build-up layer 1 is thickness about fine sand layer.
The filling material of embankment structure 4 is sand in 15cm.
The material of the thermal-collecting tube 6 is elastomeric material, and internal Heat Conduction Material is ice；The heat collection structure 5 is eight to joint
Stainless steel structure.
Described above, only presently preferred embodiments of the present invention is not intended to limit the invention, patent protection model of the invention
Enclose and be defined by claims, the equivalent structure change that every specification and accompanying drawing content with the present invention is made, similarly
It should include within the scope of the present invention.
Claims (8)
- A kind of 1. new permafrost area embankment structure, it is characterised in that trapezoidal embankment structure (4) including aerial part and The light-weight foamed concrete insulating course (2) and heat build-up layer (1) of under ground portion, light-weight foamed concrete insulating course (2) are located at embankment Immediately below structure (4), heat build-up layer (1) is arranged on the lower section of light-weight foamed concrete insulating course (2), and light-weight foamed concrete is protected Warm layer (2) transverse width grows 2~3m than the width of embankment structure (4) bottom, and embankment structure (4) both sides are provided with hot pin Structure (3), the hot rod structure (3) run through embankment structure (4), light-weight foamed concrete insulating course (2) and heat build-up layer (1).
- A kind of 2. new permafrost area embankment structure according to claim 1, it is characterised in that the hot rod structure (3) heat collection structure (5) and thermal-collecting tube (6) are included；It is connected between thermal-collecting tube (6) and heat collection structure (5) by joint, hot rod structure (3) it is rigidly connected between bottom and heat collection structure (5).
- A kind of 3. new permafrost area embankment structure according to claim 1, it is characterised in that in vertical direction, 1~1.5m at the top of embankment structure (4) is higher by the top of hot rod structure (3).
- A kind of 4. new permafrost area embankment structure according to claim 1, it is characterised in that light-weight foamed coagulation The material of native heat-insulation layer (2) is addition fiber and the foam concrete of waterproofing agent.
- A kind of 5. new permafrost area embankment structure according to claim 1, it is characterised in that the heat build-up layer (1) fine sand layer for being 12~18cm.
- A kind of 6. new permafrost area embankment structure according to claim 1, it is characterised in that the heat build-up layer (1) length and width dimensions are consistent with light-weight foamed concrete insulating course (2) size.
- A kind of 7. new permafrost area embankment structure according to claim 1, it is characterised in that embankment structure (4) Filling material be antifreeze effect filler.
- A kind of 8. new permafrost area embankment structure according to claim 1, it is characterised in that the thermal-collecting tube (6) material is elastomeric material, and internal Heat Conduction Material is ice；The heat collection structure (5) is eight stainless steel structures to joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711078613.7A CN107794817A (en) | 2017-11-06 | 2017-11-06 | A kind of new permafrost area embankment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711078613.7A CN107794817A (en) | 2017-11-06 | 2017-11-06 | A kind of new permafrost area embankment structure |
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| Publication Number | Publication Date |
|---|---|
| CN107794817A true CN107794817A (en) | 2018-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711078613.7A Pending CN107794817A (en) | 2017-11-06 | 2017-11-06 | A kind of new permafrost area embankment structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109235185A (en) * | 2018-09-30 | 2019-01-18 | 江西建工第二建筑有限责任公司 | It is a kind of for controlling the hot-mix recycling and building method of seasonal freeze injury |
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2017
- 2017-11-06 CN CN201711078613.7A patent/CN107794817A/en active Pending
Patent Citations (7)
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109235185A (en) * | 2018-09-30 | 2019-01-18 | 江西建工第二建筑有限责任公司 | It is a kind of for controlling the hot-mix recycling and building method of seasonal freeze injury |
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