CN206298902U - A kind of concrete pile foundation structure with inside and outside ventilation duct - Google Patents
A kind of concrete pile foundation structure with inside and outside ventilation duct Download PDFInfo
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- CN206298902U CN206298902U CN201621396133.6U CN201621396133U CN206298902U CN 206298902 U CN206298902 U CN 206298902U CN 201621396133 U CN201621396133 U CN 201621396133U CN 206298902 U CN206298902 U CN 206298902U
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- pile foundation
- ventilation duct
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- power transmission
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Abstract
The utility model discloses a kind of concrete pile foundation structure with inside and outside ventilation duct, including a power transmission line cone pillar pile foundation, the power transmission line cone pillar pile foundation matrix is embedded under the earth's surface of Permafrost Area, and power transmission line cone pillar pile foundation top is in earth's surface；The central tube of ventilation duct is communicated with along power transmission line cone pillar pile foundation center；If through the ventilation duct for thering is dried layer to be distributed up and down and be connected with central tube on power transmission line cone pillar pile foundation perisporium, power transmission line cone pillar pile foundation in earth's surface is provided with the earth's surface ventilation duct being connected with central tube, the earth's surface ventilation duct mouth of pipe is provided with the brim of a hat, and water receiving tank is respectively arranged below with the correspondence earth's surface ventilation duct mouth of pipe.This structure can quickly disperse the heat of hydration after pile foundation is poured, pile foundation crack is reduced, foundation soil body temperature is effectively reduced, foundation bearing capacity is improved, the effective lifting to the artificial upper limit of ever-frozen ground is realized, while the engineering problem caused to prevent and preventing and treating body frost heaving and thaw collapse provides technical support.
Description
Technical field
The utility model belong to be related to one kind inside and outside gas friendship can be carried out in the pile foundation engineering of Permafrost Area
The structure changed, is particularly applicable to a kind of pile foundation knot of constructional concrete ventilation duct of high-grade overhead transmission line column foot
Structure.
Background technology
The stability on basis directly affects the service life of buildings or structures.The stability of foundation pair of overhead transmission line
Play the role of in the stability of overall circuit especially important.Because power transmission line column foot excavation scope is larger, concreting amount
Larger particularity, its influence to ever-frozen ground around is very big.Therefore transmission line of electricity column foot is carried out in Permafrost Area
During construction, most important task is the stability for ensureing column foot and column foot surrounding soil.In Frozen Ground Area, the uplift load on basis
Frost heave load superposition with surrounding soil threatens huge to the stability on basis, but the resistance to plucking of Frozen Ground Area transmission line foundation
The research of failure mode, prophylactico-therapeutic measures etc. is not perfect, therefore the stability of column foot still needs and carries out substantial amounts of research.
Show for the result of column foot stability study at present, it is ensured that the stability of column foot, foundation soil will meet following
It is required that：
1. ever-frozen ground bearing capacity higher is ensured, it is necessary to assure freeze the frozen state of the soil body；
2. the cooling measure taken the initiative, prevents the thawing of ground and surrounding soil, reduces engineering construction activity to for many years
The interference of frozen soil, improve ever-frozen ground freezes the upper limit；
3. the contact risk of rupture in interaction between pile and soil problem can be weakened using the higher-strength for freezing the soil body.
The cone pillar pile foundation scale of construction is big in addition, belongs to mass concrete, can be produced in its concrete construction big
The heat of hydration of amount, aquation heat localization causes concrete temperature too high, and temperature is higher, and temperature stress is also bigger, when temperature stress is big
Concrete can be caused to produce crack to a certain extent, and often depth is larger in this crack, has larger prestige to the bearing capacity of structure
The side of body, and in rainfall, rainwater can be entered inside pile foundation by crack, cause the reduction of bearing capacity of foundation slab around.It is special
It is not that, in Permafrost Area, when moisture enters pile foundation inside, the frost heave of moisture also results in concrete pile foundation crack
Become big, its structure is seriously damaged, until losing bearing capacity.
Generally speaking, in the electric power pylon column foot work progress of Permafrost Area, using the radiating of ventilation duct, can be effective
Temperature rise caused by the concrete construction phase heat of hydration is cut down, the maximum temperature for lowering concrete always controls the generation of thermal cracking,
The colder air of Winter Qinghai Xizang Plateau can be utilized simultaneously so that cross-ventilation heat exchange effectively reduces pile foundation surrounding soil
Temperature, the preventing and treating to engineering problems such as frost heave, thaw collapses in the pile foundation engineering of Permafrost Area provides technical support.
Utility model content
The purpose of this utility model is to provide a kind of succinct, easy gentle concrete hydrating in ventilation duct active cooling ground
The concrete ventilation duct piling strtucture of heat.Using this structure, the heat of hydration after can pile foundation be poured is quick by hollow cylinder
Disperse, crack of the pile foundation caused by the heat of hydration radiates more slowly is reduced, while during basic use, can effectively reduce
Foundation soil body temperature, improves foundation bearing capacity, realizes the effective lifting to the artificial upper limit of ever-frozen ground, while for prevention and preventing and treating
The engineering problem that body frost heaving and thaw collapse cause provides technical support.
The purpose of this utility model is realized by following technical proposals.
According to one embodiment that the utility model is provided, the utility model provides a kind of with inside and outside ventilation duct
Concrete pile foundation structure, including a power transmission line cone pillar pile foundation, the power transmission line cone pillar pile foundation matrix are embedded in for many years
Under permafrost region earth's surface, power transmission line cone pillar pile foundation top is in earth's surface；It is communicated with leading to along power transmission line cone pillar pile foundation center
The central tube of airduct；If through the ventilation for thering is dried layer to be distributed up and down and be connected with central tube on power transmission line cone pillar pile foundation perisporium
Pipe, the power transmission line cone pillar pile foundation in earth's surface is provided with the earth's surface ventilation duct being connected with central tube, on the earth's surface ventilation duct mouth of pipe
The brim of a hat is provided with, water receiving tank is respectively arranged below with the correspondence earth's surface ventilation duct mouth of pipe.
Further, the power transmission line cone pillar pile foundation bottom under the earth's surface is provided with pile foundation pedestal, and ventilation duct is distributed to stake
On base pedestal, and on pile foundation pedestal ventilation length of tube more than upper strata power transmission line cone pillar pile foundation on ventilation length of tube.
Further, the ventilation duct is in cross distribution along power transmission line cone pillar pile foundation center, and bottom ventilation ducts pass through stake
Base pedestal is penetrated in foundation soil.
Further, the ventilation duct and the equal level of earth's surface ventilation duct are to setting.
Further, the earth's surface ventilation duct pipe is coated with heat-insulation layer.
Further, the earth's surface ventilation duct uses corrugated metal pipe.
Further, the water receiving tank is corresponding with the mozzle that drips that the brim of a hat lower section is set.
The characteristics of the utility model is：
The structure makes full use of concrete pile foundation in itself, adds the construction measure of ventilation duct, can mitigate concrete water
Change the invasion of the destruction and the heat of hydration of the pile foundation that heat localization is caused to ever-frozen ground around.
Operation principle using ventilation duct can accelerate the heat exchanging process of deep soil.
The brim of a hat is set and measure of dripping by saying Entry Interface in side Puncture Tube, air condensed water can be reduced to ground
Invasion.
The ventilation duct for elevating above the soil is from the corrugated metal pipe being easily changed, the certain thickness heat-insulated material of its outer wrap
Material, the durability and Years Of Service that improve the engineering measure can effectively cut down heat of hydration generation in the concrete pile foundation construction time
Intensification, lower concrete maximum temperature, be a kind of measure of concrete pile foundation construction time temperature controlled anticracking.
Brief description of the drawings
Fig. 1 is the concrete ventilation pipe pile foundation cross-sectional structure schematic diagram of reserving hole channel of the present utility model；
Fig. 2 is the schematic top plan view of the concrete ventilation duct pile foundation structure of reserving hole channel of the present utility model.
In figure：1. the brim of a hat；2. water receiving tank；3. drip mozzle；4. earth's surface ventilation duct；5. heat-insulation layer；6. ventilation duct；7. defeated
Electric wire bores pillar pile foundation；8. pile foundation pedestal；9. central tube.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
As shown in figure 1, the concrete pile foundation structure of inside and outside ventilation duct should be carried, including a power transmission line cone pillar stake
Base 7, the matrix of power transmission line cone pillar pile foundation 7 is embedded under the earth's surface of Permafrost Area, and the top of power transmission line cone pillar pile foundation 7 is located at earth's surface
On；If being transmitted electricity through thering is dried layer to be distributed up and down and extending the ventilation duct 6 of its side wall along the perisporium of power transmission line cone pillar pile foundation 7
The center of line cone pillar pile foundation 7 is communicated with the central tube 9 of ventilation duct 6, and pile foundation indoor design ventilation duct 6 is used as construction measure.Ground
Power transmission line cone pillar pile foundation 7 on table is provided with the earth's surface ventilation duct 4 being connected with central tube 9, is set on the mouth of pipe of earth's surface ventilation duct 4
There is the brim of a hat 1, water receiving tank 2, water receiving tank 2 and dripping that the lower section of the brim of a hat 1 is set are respectively arranged below with the mouth of pipe of correspondence earth's surface ventilation duct 4
Mozzle 3 is corresponding.
The bottom of power transmission line cone pillar pile foundation 7 under earth's surface is provided with pile foundation pedestal 8, and ventilation duct 6 is distributed to pile foundation pedestal 8
On, and the length of ventilation duct 6 on pile foundation pedestal 8 is more than the length of ventilation duct 6 in upper strata power transmission line cone pillar pile foundation 7.
Earth's surface ventilation duct 4 is vertically arranged with the tube wall of ventilation duct 6, and the pipe of earth's surface ventilation duct 4 is coated with heat-insulation layer 5.
Fig. 2 illustrates the ventilation duct 6 of the concrete ventilation duct pile foundation structure in the internal reservation duct with active cooling
And earth's surface peripheral hardware ventilation tubular construction.Ventilation duct 6 is along the center of power transmission line cone pillar pile foundation 7 in cross distribution, and bottom ventilation ducts 6
In foundation soil being penetrated through pile foundation pedestal 8.Cylindrical high intensity hollow cylinder extends to inside soil body in itself through pile foundation, in soil
In bury certain length.Ventilation duct 6 and the equal level of earth's surface ventilation duct 4 are to setting.
In the structure, earth's surface ventilation duct 4 uses corrugated metal pipe.
This structure is embodied as, and during pillar pile foundation construction is bored, cylindrical high intensity pre-buried in advance is hollow
Cylinder (paper web, pvc pipe etc.), forms bottom, middle part, the ventilation duct of upper cross shape, and ventilation duct is formed by several pipelines, one
Vertical ventilation duct cone pillar pile foundation shaft centre, two cone the bottom spread foundation of pillar pile foundation inside,
Vertical ventilation duct is connected with some of middle part ventilation duct and top laterally has and external two external pipelines being connected, external pipeline
The side at the top of cone pillar pile foundation is embedded in, its mouth of pipe is provided with the brim of a hat, and the brim of a hat can prevent the invasion of outside rainwater, while can be with
When dissipation basic internal heat.Pre-buried cylindrical high intensity hollow cylinder can effectively cut down hydration heat of concrete, contribute to
Foundation soil body and the gas exchanges of air, the heat in foundation soil are constantly distributed and make the reduction of foundation soil temperature, many
Year permafrost region is using can effectively improve the anthropogenic heating that surrounding foundation soil freezes the soil body for many years；Lower the highest temperature of concrete
Degree, to prevent the generation in concrete construction phase temperature control crack.
Principle of the present utility model is to set ventilation duct, the diameter of ventilation duct and basis inside cone pillar pile foundation
Bearing capacity determine, larger diameter is selected in the case where bearing capacity is not influenceed.Can be provided according to the wind speed on the ground simultaneously
Material, sets two earth's surface ventilation ducts of horizontal direction and elevates above the soil in maximum wind direction, effectively can be adjusted using chimney operation principle
Section heat exchanging process.In level to the setup of entrances and exits the brim of a hat and the guiding gutter facility that drips, concrete can be set under the guiding gutter that drips
Water receiving tank, purpose is to reduce invasion of the condensed water to permanent frozen soil foundation in air.Elevate above the soil part ventilation tube material choosing
Take the corrugated metal pipe being easily changed, the certain thickness heat resistant material of outer wrap.
Inside pile foundation, in the concrete construction of pile foundation, high intensity hollow cylinder can have the structure setting
Effect ground slows down the intensification of hydration heat of concrete generation, reduces product of the concrete pile foundation because of thermal cracking caused by the heat of hydration
It is raw.During pile foundation works, winter can utilize extraneous colder temperature to pass through master of the vertical ventilation duct enhancing to foundation soil body
Dynamic cooling.This structure can realize the effective temperature-reducing to the high-grade power transmission line column foot in Permafrost Area, and inside setting ventilation duct can accelerate greatly
Gas improves the anthropogenic heating of ever-frozen ground with the heat exchange of ever-frozen ground, strengthens the stability and foundation bearing capacity of column foot, reduces
Possibility and engineering freeze injury are pulled out on column foot.
The above, only the utility model preferably specific embodiment, but protection domain of the present utility model is not
This is confined to, any one skilled in the art can readily occur in the technical scope that the utility model is disclosed
Change or replacement, should all cover within protection domain of the present utility model.
Claims (7)
1. a kind of concrete pile foundation structure with inside and outside ventilation duct, an including power transmission line cone pillar pile foundation, its feature
It is：The power transmission line cone pillar pile foundation matrix is embedded under the earth's surface of Permafrost Area, and power transmission line cone pillar pile foundation top is located at
In earth's surface；The central tube of ventilation duct is communicated with along power transmission line cone pillar pile foundation center；Passed through on power transmission line cone pillar pile foundation perisporium
If being installed with the ventilation duct that dried layer is distributed and is connected with central tube up and down, the power transmission line cone pillar pile foundation in earth's surface is provided with
The earth's surface ventilation duct that heart pipe is connected, the earth's surface ventilation duct mouth of pipe is provided with the brim of a hat, below the correspondence earth's surface ventilation duct mouth of pipe respectively
It is provided with water receiving tank.
2. a kind of concrete pile foundation structure with inside and outside ventilation duct according to claim 1, it is characterised in that：
Power transmission line cone pillar pile foundation bottom under the earth's surface is provided with pile foundation pedestal, and ventilation duct is distributed to pile foundation pedestal, and pile foundation base
Ventilation length of tube on seat is more than the ventilation length of tube in upper strata power transmission line cone pillar pile foundation.
3. a kind of concrete pile foundation structure with inside and outside ventilation duct according to claim 2, it is characterised in that：Institute
Ventilation duct is stated along power transmission line cone pillar pile foundation center in cross distribution, and bottom ventilation ducts penetrate foundation soil through pile foundation pedestal
In.
4. a kind of concrete pile foundation structure with inside and outside ventilation duct according to claim 1, it is characterised in that：Institute
Ventilation duct and the equal level of earth's surface ventilation duct are stated to setting.
5. a kind of concrete pile foundation structure with inside and outside ventilation duct according to claim 1, it is characterised in that：Institute
State earth's surface ventilation duct pipe and be coated with heat-insulation layer.
6. a kind of concrete pile foundation structure with inside and outside ventilation duct according to claim 1, it is characterised in that：Institute
State earth's surface ventilation duct and use corrugated metal pipe.
7. a kind of concrete pile foundation structure with inside and outside ventilation duct according to claim 1, it is characterised in that：Institute
It is corresponding with the mozzle that drips that the brim of a hat lower section is set to state water receiving tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621396133.6U CN206298902U (en) | 2016-12-19 | 2016-12-19 | A kind of concrete pile foundation structure with inside and outside ventilation duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621396133.6U CN206298902U (en) | 2016-12-19 | 2016-12-19 | A kind of concrete pile foundation structure with inside and outside ventilation duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206298902U true CN206298902U (en) | 2017-07-04 |
Family
ID=59213992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621396133.6U Expired - Fee Related CN206298902U (en) | 2016-12-19 | 2016-12-19 | A kind of concrete pile foundation structure with inside and outside ventilation duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206298902U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080212A (en) * | 2019-05-27 | 2019-08-02 | 国网四川省电力公司经济技术研究院 | A kind of alpine meadow region concrete pipe base |
| CN112064627A (en) * | 2019-06-10 | 2020-12-11 | 中国科学院寒区旱区环境与工程研究所 | Freeze-proofing taper cylinder pile foundation in frozen soil area and construction process thereof |
| CN113235492A (en) * | 2021-05-12 | 2021-08-10 | 湖南省怀化公路桥梁建设总公司 | Highway assembly type landscape guardrail and installation method thereof |
-
2016
- 2016-12-19 CN CN201621396133.6U patent/CN206298902U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080212A (en) * | 2019-05-27 | 2019-08-02 | 国网四川省电力公司经济技术研究院 | A kind of alpine meadow region concrete pipe base |
| CN110080212B (en) * | 2019-05-27 | 2021-05-11 | 国网四川省电力公司经济技术研究院 | Concrete pile foundation in high and cold frozen soil area |
| CN112064627A (en) * | 2019-06-10 | 2020-12-11 | 中国科学院寒区旱区环境与工程研究所 | Freeze-proofing taper cylinder pile foundation in frozen soil area and construction process thereof |
| CN113235492A (en) * | 2021-05-12 | 2021-08-10 | 湖南省怀化公路桥梁建设总公司 | Highway assembly type landscape guardrail and installation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170704 Termination date: 20201219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |