CN1837502A - Apparatus for extruding and expanding bore in cast-in-situ concrete pile and construction method thereof - Google Patents
Apparatus for extruding and expanding bore in cast-in-situ concrete pile and construction method thereof Download PDFInfo
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- CN1837502A CN1837502A CN 200510009847 CN200510009847A CN1837502A CN 1837502 A CN1837502 A CN 1837502A CN 200510009847 CN200510009847 CN 200510009847 CN 200510009847 A CN200510009847 A CN 200510009847A CN 1837502 A CN1837502 A CN 1837502A
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Abstract
The invention relates to an irrigate post concrete hole-expanding device and method, which comprises: steel tube 6 and lifting rod 5 inside the steel tube 6, while one end of said rod 5 is connected to the adjusting drawing bolt 1 and another end is connected to the connecting plate 9; two ends of said connecting plate 9 are connected to the branch arm 7 via hinge 8; said branch arm 7 is hinged with said steel tube 6 via the hinge 8; the upper end of steel tube 6 is mounted with a hollow jack 4, which has a jack steel pad 3 connected with a screw cap 2; and the connecting plate 9 has a support plate 10. The invention can be used to expand the hole of strengthened post.
Description
Technical field:
The present invention relates to a kind of building, bridge and squeezed aperture apparatus of various foundation pouring pile concrete and job practices.
Background technology:
Traditional castinplace pile is when carrying out squeezed hole operation, and is good at geological conditions, but under the pore-forming situation, carries out reaming in prebored hole, concrete perfusion pile after the reaming.Geological conditions is bad, can not pore-forming, adopt mud off assurance hole wall not subside earlier and carry out ream operation then, back concrete perfusion pile, Chinese patent 00253722.2 trident extruded and extended pile for example, but when adopting mud off, mud balance is pressed the vertical consideration of hole wall, hole wall produces certain angle of inclination when reaming, because soil layer cohesive strength reduces the bigger angle of slope of reaming existence in the mud, the soil body leans on from the slump of gravity nature, the very difficult reaming size that expands into the design drawing requirement, and the soil body of slump drops to the reaming bottom and forms the end resistance that mud has a strong impact on the reaming part after the reaming, the space of slump is filled by mud, when the soil body by mud dipping, the downward at any time irregular slump that descends of long-time cohesive strength, traditional thus reaming stake is difficult to guarantee pile quality.
Summary of the invention:
The purpose of this invention is to provide a kind of in order to overcome owing to reaming in mud, and in the deformation process of reaming extrusion soil, the method of filling by mud, and the angle of slope slump of avoiding the reaming extruding, influence the problem of workmanship, be the squeezed aperture apparatus of a kind of cast-in-place pile concrete and use this device to carry out the method for squeezed hole construction.
Above-mentioned purpose realizes by following technical scheme:
The squeezed aperture apparatus of cast-in-place pile concrete, its composition comprises: steel pipe, be installed in the raising rod in the steel pipe, one end of described raising rod is connected with the adjustment turnbuckle, the other end links to each other with junction plate, described junction plate two ends are connected with support arm by hinge, described support arm is connected with described steel pipe by hinge, hollow jack is equipped with in described steel pipe upper end, has the lifting jack steel backing plate on the described hollow jack, be connected with nut on the described lifting jack steel backing plate, have base plate on the described junction plate.
The job practices of the squeezed aperture apparatus of cast-in-place pile concrete, pore-forming pouring concrete pile at first, in 20 minutes, to put into described squeezed aperture apparatus in the big fluidised form that not insert reinforcing cage of having poured into a mould or the Superfluid state concrete stake, go out major part by squeezed aperture apparatus in that the different parts of pile body is squeezed, after reaming is finished, dose concrete when proposing squeezed aperture apparatus to the design mark, height is laid the reinforcing cage pile.
This technical scheme has following beneficial effect:
1. the present invention is the technical scheme of carrying out ream operation in the concrete pile of the big mobile or Superfluid state concrete of having built, and the angle of slope slump when this method has solved reaming influences the problem of workmanship.
2. Counterboring apparatus of the present invention is a compact making hole in concrete, when having the angle of slope, soil deformation regains the space that reamer causes, filled by concrete at once, there is not the problem that has expanded the hole slump in about 2.4 tons/cubic metre of the mobile state subgroup kind pressure of concrete this moment.
3. the present invention can reach and improve bearing capacity of single pile reduction engineering cost to greatest extent in the long any part reaming of stake, guarantees workmanship this purpose again.
Description of drawings: accompanying drawing 1 is the structural representation of squeezed aperture apparatus.
Accompanying drawing 2 is structural representations of squeezed aperture apparatus opening.
Accompanying drawing 3 is that pore-forming has poured into the construction technology figure of concrete pile.
Accompanying drawing 4 is the construction technology figure that throw in squeezed aperture apparatus reaming.
Accompanying drawing 5 is the construction technology figure that propose squeezed aperture apparatus.
Accompanying drawing 6 is the construction technology figure that lay the reinforcing cage pile.
The specific embodiment:
Embodiment 1:
The squeezed aperture apparatus of cast-in-place pile concrete, its composition comprises: steel pipe 6, be installed in the raising rod 5 in the steel pipe 6, one end of described raising rod 5 is connected with adjusts turnbuckle 1, the other end links to each other with junction plate 9, described junction plate 9 two ends are connected with support arm 7 by hinge 8, described support arm 7 is connected with described steel pipe 6 by hinge 8, hollow jack 4 is equipped with in described steel pipe 6 upper ends, has lifting jack steel backing plate 3 on the described hollow jack 4, be connected with nut 2 on the described lifting jack steel backing plate 3, have base plate 10 on the described junction plate 9.
Embodiment 2:
Squeezed aperture apparatus of above-mentioned cast-in-place pile concrete and job practices, pore-forming at first, pouring concrete pile, in 20 minutes, to put into the squeezed aperture apparatus of the described structure of embodiment in the big fluidised form that not insert reinforcing cage of having poured into a mould or the Superfluid state concrete stake, go out major part by squeezed aperture apparatus in that the different parts of pile body is squeezed, after reaming is finished, dose concrete to design elevation when proposing squeezed aperture apparatus, lay the reinforcing cage pile.
Embodiment 3:
Squeezed aperture apparatus of above-mentioned cast-in-place pile concrete and job practices in the pore-forming operation, can be carried out squeezed hole earlier, back fluid concrete pile.
Squeezed aperture apparatus can be put into concrete pile fully and carries out operation in large-section in-situ concrete pile.
Squeezed aperture apparatus can place jack operation on the ground in the stake of diameter less than 800mm, adopt steel pipe as dowel bar in the concrete.
Claims (2)
1. squeezed aperture apparatus of cast-in-place pile concrete, its composition comprises: steel pipe, be installed in the raising rod in the steel pipe, it is characterized in that: an end of described raising rod is connected with the adjustment turnbuckle, the other end links to each other with junction plate, described junction plate two ends are connected with support arm by hinge, described support arm is connected with described steel pipe by hinge, hollow jack is equipped with in described steel pipe upper end, has the lifting jack steel backing plate on the described hollow jack, be connected with nut on the described lifting jack steel backing plate, have base plate on the described junction plate.
2. the job practices in the squeezed hole of cast-in-place pile concrete, it is characterized in that: pore-forming pouring concrete pile at first, in 20 minutes, to put into described squeezed aperture apparatus in the big fluidised form that not insert reinforcing cage of having poured into a mould or the Superfluid state concrete stake, go out major part by described squeezed aperture apparatus in that the different parts of pile body is squeezed, after reaming is finished, dose concrete to design elevation when proposing described squeezed aperture apparatus, lay the reinforcing cage pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510009847 CN1837502A (en) | 2005-03-24 | 2005-03-24 | Apparatus for extruding and expanding bore in cast-in-situ concrete pile and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510009847 CN1837502A (en) | 2005-03-24 | 2005-03-24 | Apparatus for extruding and expanding bore in cast-in-situ concrete pile and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1837502A true CN1837502A (en) | 2006-09-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510009847 Pending CN1837502A (en) | 2005-03-24 | 2005-03-24 | Apparatus for extruding and expanding bore in cast-in-situ concrete pile and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1837502A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162246A (en) * | 2011-05-18 | 2011-08-24 | 中铁西北科学研究院有限公司 | Vibration-less compaction method of collapsible loess foundation |
| CN107130588A (en) * | 2017-05-25 | 2017-09-05 | 安徽理工大学 | Plate-resistant pouring pile and its building mortion |
-
2005
- 2005-03-24 CN CN 200510009847 patent/CN1837502A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162246A (en) * | 2011-05-18 | 2011-08-24 | 中铁西北科学研究院有限公司 | Vibration-less compaction method of collapsible loess foundation |
| CN102162246B (en) * | 2011-05-18 | 2012-09-19 | 中铁西北科学研究院有限公司 | Vibration-less compaction method of collapsible loess foundation |
| CN107130588A (en) * | 2017-05-25 | 2017-09-05 | 安徽理工大学 | Plate-resistant pouring pile and its building mortion |
| CN107130588B (en) * | 2017-05-25 | 2019-02-01 | 安徽理工大学 | Plate-resistant pouring pile and its forming device |
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