CN203846519U - Glass fiber reinforced plastic cast-in-place pile foundation - Google Patents
Glass fiber reinforced plastic cast-in-place pile foundation Download PDFInfo
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- CN203846519U CN203846519U CN201420251239.1U CN201420251239U CN203846519U CN 203846519 U CN203846519 U CN 203846519U CN 201420251239 U CN201420251239 U CN 201420251239U CN 203846519 U CN203846519 U CN 203846519U
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- fiber reinforced
- reinforced plastic
- glass fiber
- pile foundation
- foundation
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Abstract
Provided is a glass fiber reinforced plastic cast-in-place pile foundation. A cast-in-place concrete pile foundation is sleeved with a glass fiber reinforced plastic formwork, the embedment depth of the glass fiber reinforced plastic formwork is the same as the largest depth of frost penetration of the cast-in-place concrete pile foundation, and a lubricant layer is arranged outside the glass fiber reinforced plastic formwork. According to the glass fiber reinforced plastic cast-in-place pile foundation, the tangential frost-heave force on the concrete foundation from frozen earth is reduced or eliminated through the glass fiber reinforced plastic formwork, and requirements of tower foundation construction in tundra at high altitude are met.
Description
Technical field
The utility model relates to a kind of bored concrete pile foundation, particularly a kind of glass fiber reinforced plastic bored concrete pile foundation.
Background technology
Qinghai-Tibet Platean transmission line of electricity major part is passed through seasonal frozen ground area more more than being located at 4000～5000m height above sea level.The location ecosystem is extremely fragile, is difficult to recover after Alpine meadow, high-cold steppe, seasonal frozen ground environmental perturbation.At present, the domestic mature technology data that there is no high height above sea level tundra transmission line construction technique.For solving thaw collapse, frost heave and the bad frozen soil phenomenon impact that construction causes on pole and tower foundation of ever-frozen ground, be badly in need of a kind of novel bored concrete pile foundation.
Summary of the invention
The utility model provides a kind of glass fiber reinforced plastic bored concrete pile foundation, by glass steel formwork, is reduced and is eliminated the tangential frost-heave force of frozen soil to concrete foundation, meets the pole and tower foundation construction requirement of high height above sea level tundra.
The technical scheme that the utility model is taked is: a kind of glass fiber reinforced plastic bored concrete pile foundation, foundation of concrete perfusion piles outer cover has glass steel formwork, the depth of burying of described glass steel formwork is identical with the maximum frozen depth of foundation of concrete perfusion piles, and the outside of described glass steel formwork is provided with lubricant layer.
Hou Du≤the 5mm of described glass steel formwork.Described lubricant layer mixes 5% used oil, industrial vaseline, heavy oil by pitch and forms.Described glass steel formwork is cylindrical.
A kind of glass fiber reinforced plastic bored concrete pile foundation of the utility model, adopt glass steel formwork to fix outer installation of sidewall of foundation of concrete perfusion piles, by glass steel formwork, reduce, eliminate the tangential frost-heave force of frozen soil to foundation of concrete perfusion piles, the glass fiber reinforced plastic depth of burying is identical with the maximum frozen depth of foundation of concrete perfusion piles.Meet the pole and tower foundation construction requirement of high height above sea level tundra.
Accompanying drawing explanation
Fig. 1 is the utility model glass fiber reinforced plastic bored concrete pile foundation construction schematic diagram.
The specific embodiment
As shown in Figure 1, a kind of glass fiber reinforced plastic bored concrete pile foundation, foundation of concrete perfusion piles 1 outer cover has glass steel formwork 2, and the depth of burying of described glass steel formwork 2 is identical with the maximum frozen depth of foundation of concrete perfusion piles 1, and the outside of described glass steel formwork 2 is provided with lubricant layer.Hou Du≤the 5mm of described glass steel formwork 2, meets the rigidity requirement of eliminating described tangential frost-heave force.
Implementation step:
1), ground basal plane cleaning.
2), rotary drilling rig marches into the arena, revolve and scrape out hole, bottom reaming.
3), place reinforcing cage, mounting glass steel form 2, columniform glass steel formwork 2 depth of buryings identical with the maximum frozen depth of foundation of concrete perfusion piles 1.Glass steel formwork 2 will carry out preservative treatment before installing, and in glass steel formwork 2 outsides, smears the lubricant layer of 5 millimeters thick, divides and carries out for three times.Lubricant layer is mixed the hydrophobicity materials such as 5% used oil, industrial vaseline, heavy oil and forms by pitch.
4), concrete perfusion.
Claims (3)
1. a glass fiber reinforced plastic bored concrete pile foundation, it is characterized in that, foundation of concrete perfusion piles (1) outer cover has glass steel formwork (2), the depth of burying of described glass steel formwork (2) is identical with the maximum frozen depth of foundation of concrete perfusion piles (1), and the outside of described glass steel formwork (2) is provided with lubricant layer.
2. a kind of glass fiber reinforced plastic bored concrete pile foundation according to claim 1, is characterized in that the Hou Du≤5mm of described glass steel formwork (2).
3. according to a kind of glass fiber reinforced plastic bored concrete pile foundation described in claim 1 or 2, it is characterized in that, described glass steel formwork (2) is cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420251239.1U CN203846519U (en) | 2014-05-16 | 2014-05-16 | Glass fiber reinforced plastic cast-in-place pile foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420251239.1U CN203846519U (en) | 2014-05-16 | 2014-05-16 | Glass fiber reinforced plastic cast-in-place pile foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203846519U true CN203846519U (en) | 2014-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420251239.1U Active CN203846519U (en) | 2014-05-16 | 2014-05-16 | Glass fiber reinforced plastic cast-in-place pile foundation |
Country Status (1)
| Country | Link |
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| CN (1) | CN203846519U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105113489A (en) * | 2015-08-20 | 2015-12-02 | 中国科学院寒区旱区环境与工程研究所 | Method of reducing concrete hydration heat of cast-in-place pile in permafrost region |
| CN107663863A (en) * | 2016-07-29 | 2018-02-06 | 中国科学院寒区旱区环境与工程研究所 | A kind of Permafrost Area pile foundation and its construction technology |
-
2014
- 2014-05-16 CN CN201420251239.1U patent/CN203846519U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105113489A (en) * | 2015-08-20 | 2015-12-02 | 中国科学院寒区旱区环境与工程研究所 | Method of reducing concrete hydration heat of cast-in-place pile in permafrost region |
| CN107663863A (en) * | 2016-07-29 | 2018-02-06 | 中国科学院寒区旱区环境与工程研究所 | A kind of Permafrost Area pile foundation and its construction technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |