CN204570678U - A kind of variable-diameter cast-in-situ pile - Google Patents
A kind of variable-diameter cast-in-situ pile Download PDFInfo
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- CN204570678U CN204570678U CN201520285176.6U CN201520285176U CN204570678U CN 204570678 U CN204570678 U CN 204570678U CN 201520285176 U CN201520285176 U CN 201520285176U CN 204570678 U CN204570678 U CN 204570678U
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- pile body
- pile
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Abstract
The utility model provides a kind of variable-diameter cast-in-situ pile, comprise the vertical pile body arranged, be connected in the cushion cap on this pile body top and be connected in the pile top of pile body lower end, wherein, the upper end of vertical muscle anchors into cushion cap inside, lower end anchors into pile top inside, in pile body, arrange posttension unbonded prestressing tendon according to cracking resistance demand simultaneously, the posttension unbonded prestressing tendon arranged is applied with longitudinal prestressing force to pile body, thus the crack controlling pile body preferably occurs and carries out, reduce the possibility of the rear further corrosion of reinforcing bar of pile body cracking, improve the durability of pile foundation, and then the configuration quantity that tension in pile body indulges muscle can be greatly reduced, reduce the manufacturing cost of uplift principle, in addition, reducing pile body in the utility model and reversed acanthoid structure can further improve the resistance to plucking effect of pile body, substantially increase the anchoring property between pile body and sub-surface, structure is simple, convenient and swift, be applicable to promoting the use of.
Description
Technical field
The utility model relates to the realm of building construction, and specifically, the utility model relates to a kind of variable-diameter cast-in-situ pile.
Background technology
In recent years, along with a large amount of development & construction of the domestic underground space, what mainly adopt the anti-floating problem of individual layer and even multi-storey basement is uplift pile.The pile-type selected at present mainly contains precast square pile and cast-in-situ concrete poured stake.There is the shortcomings such as the large and pile extension quality of pile foundation pile sinking difficulty not easily ensures in the former, latter is when uplift resistance is larger for controlling pile body crack, and need configure a large amount of tensions and indulge muscle, cost of manufacture is higher, and economy is poor.Therefore, those skilled in the art need badly provides a kind of new technical scheme to solve the problem.
Utility model content
In order to solve the problem of prior art, the utility model provides a kind of variable-diameter cast-in-situ pile, and not only cost of manufacture is low, and pulling test strength is high simultaneously.
The utility model patent provides a kind of variable-diameter cast-in-situ pile, comprise the vertical pile body arranged, be connected in the cushion cap on this pile body top and be connected in the pile top of pile body lower end, described pile top has cylindrical shoulder and conically tip, the diameter of described shoulder is greater than the diameter of described pile body, and the top of described shoulder has reversed acanthoid structure, described pile body has the first pile body and second pile body of different tube diameters, described second pile body is positioned at the below of described first pile body, and the caliber of described second pile body is greater than the caliber of described first pile body, be provided with in described pile body: the some vertical muscle vertically arranged, and the stirrup be wrapped in outside described each vertical muscle, and the upper end of described vertical muscle anchors into described cushion cap inside, the lower end of described vertical muscle anchors into described pile top inside, a posttension of vertically arranging also is provided with without bonding prestress muscle in described pile body, described posttension is fixed on pile top inside without the lower end of bonding prestress muscle, described posttension to be stretched out in cushion cap without the stretching end on bonding prestress muscle top and is fixed with cushion cap.
Preferably, described second pile body have some juts extended to horizontal direction.
Preferably, the diameter of described second pile body is greater than the diameter 10cm ~ 20cm of described first pile body.
Preferably, each described vertical muscle is spaced apart in annular in described pile body, and described stirrup distributes in the shape of a spiral and is close to layout with each vertical muscle in pile body.
Preferably, described posttension is close to layout without bonding prestress muscle and described stirrup.
Preferably, the lateral wall of described first pile body is matsurface.
The beneficial effect that the technical scheme that the utility model provides is brought is: the upper end that the utility model indulges muscle anchors into cushion cap inside, lower end anchors into pile top inside, in pile body, arrange posttension unbonded prestressing tendon according to cracking resistance demand simultaneously, the posttension unbonded prestressing tendon arranged is applied with longitudinal prestressing force to pile body, thus the crack controlling pile body preferably occurs and carries out, reduce the possibility of the rear further corrosion of reinforcing bar of pile body cracking, improve the durability of pile foundation, and then the configuration quantity that tension in pile body indulges muscle can be greatly reduced, reduce the manufacturing cost of uplift principle, in addition, reducing pile body in the utility model and reversed acanthoid structure can further improve the resistance to plucking effect of pile body, substantially increase the anchoring property between pile body and sub-surface, structure is simple, convenient and swift, be applicable to promoting the use of.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model patent, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the variable-diameter cast-in-situ pile that the utility model provides.
[in figure Reference numeral]:
10. pile body, 20. cushion caps, 30. pile tops, 40. shoulders, 50. tips, 60. reversed acanthoid structures, 70. first pile bodies, 80. second pile bodies, 90. vertical muscle, 100. stirrups, 110. posttension are without bonding prestress muscle.
Detailed description of the invention
For making content of the present utility model clearly understandable, below in conjunction with Figure of description, content of the present utility model is described further.Certain the utility model is not limited to this specific embodiment, and the general replacement known by those skilled in the art is also encompassed in protection domain of the present utility model.Secondly, the utility model detailed statement that utilized schematic diagram to carry out, when describing the utility model example in detail, for convenience of explanation, schematic diagram, should in this, as to restriction of the present utility model not according to general ratio partial enlargement.
Above-mentioned and other technical characteristic and beneficial effect, will in conjunction with the embodiments and accompanying drawing static pressure pipe pile of the present utility model is described in detail.As shown in the figure, Fig. 1 is the structural representation of the variable-diameter cast-in-situ pile that the utility model provides.
As shown in Figure 1, the utility model provides a kind of variable-diameter cast-in-situ pile, comprise the vertical pile body 10 arranged, be connected in the cushion cap 20 on this pile body 10 top and be connected in the pile top 30 of pile body 10 lower end, pile top 30 has cylindrical shoulder 40 and conically tip 50, the diameter of shoulder 40 is greater than the diameter of pile body 10, and the top of shoulder 40 has reversed acanthoid structure 60, pile body 10 has the first pile body 70 and the second pile body 80 of different tube diameters, second pile body 80 is positioned at the below of the first pile body 70, and the caliber of the second pile body 80 is greater than the caliber of the first pile body 70, be provided with in pile body 10: the some vertical muscle 90 vertically arranged, and the stirrup 100 be wrapped in outside each vertical muscle 90, and the upper end of vertical muscle 90 anchors into cushion cap 20 inside, the lower end of vertical muscle 90 anchors into pile top 30 inside, a posttension of vertically arranging also is provided with without bonding prestress muscle 110 in pile body 10, posttension is fixed on pile top 30 inside without the lower end of bonding prestress muscle 110, posttension to be stretched out in cushion cap 20 without the stretching end on bonding prestress muscle 110 top and is fixed with cushion cap 20.
In order to improve the resistance to plucking effect of pile body further, the second pile body 80 has some juts extended to horizontal direction, the cross section of described jut is polygon or irregular shape.
In preferred version, the diameter of the second pile body 80 is greater than the diameter 10cm ~ 20cm of the first pile body 70, and the lateral wall of described first pile body 70 is matsurface, to improve resistance to plucking effect.
Concrete, in the present embodiment, each vertical muscle 90 is spaced apart in annular in described pile body 10, and described stirrup 100 distributes in the shape of a spiral and is close to layout with each vertical muscle 90 in pile body 10, and posttension is close to layout without bonding prestress muscle 110 and described stirrup 100.
In sum, the upper end that the utility model indulges muscle 90 anchors into cushion cap 20 inside, it is inner that lower end anchors into pile top 30, in pile body 10, arrange posttension unbonded prestressing tendon 110 according to cracking resistance demand simultaneously, the posttension unbonded prestressing tendon 110 pairs of pile bodies 10 arranged are applied with longitudinal prestressing force, thus the crack controlling pile body preferably occurs and carries out, reduce the possibility of the rear further corrosion of reinforcing bar of pile body cracking, improve the durability of pile foundation, and then the configuration quantity that tension in pile body indulges muscle can be greatly reduced, reduce the manufacturing cost of uplift principle, in addition, reducing pile body in the utility model and reversed acanthoid structure 60 can further improve the resistance to plucking effect of pile body, substantially increase the anchoring property between pile body and sub-surface, structure is simple, convenient and swift, be applicable to promoting the use of.
Although the utility model essentially describes above embodiment, just come as an example to be described, and the utility model is not limited to this.Those of ordinary skill in the art can make multiple modification and application and not depart from the essential characteristics of embodiment.Such as, each parts that embodiment is shown in detail can be revised and run, to described modification with apply relevant difference and can think and be included in protection domain of the present utility model that claims limit.
Embodiment involved in this manual, its implication is that specially feature, structure or the characteristic described in conjunction with this embodiment is included at least one embodiment of the present utility model.These terms come across in manual everywhere differ to establish a capital and relate to same embodiment.In addition, when describing special characteristic, structure or characteristic in conjunction with any embodiment, all think that it falls in the scope of these special characteristics, structure or the characteristic that those of ordinary skill in the art just can realize in conjunction with other embodiments.
Claims (6)
1. a variable-diameter cast-in-situ pile, comprise the vertical pile body arranged, be connected in the cushion cap on this pile body top and be connected in the pile top of pile body lower end, it is characterized in that, described pile top has cylindrical shoulder and conically tip, the diameter of described shoulder is greater than the diameter of described pile body, and the top of described shoulder has reversed acanthoid structure, described pile body has the first pile body and second pile body of different tube diameters, described second pile body is positioned at the below of described first pile body, and the caliber of described second pile body is greater than the caliber of described first pile body, be provided with in described pile body: the some vertical muscle vertically arranged, and the stirrup be wrapped in outside described each vertical muscle, and the upper end of described vertical muscle anchors into described cushion cap inside, the lower end of described vertical muscle anchors into described pile top inside, a posttension of vertically arranging also is provided with without bonding prestress muscle in described pile body, described posttension is fixed on pile top inside without the lower end of bonding prestress muscle, described posttension to be stretched out in cushion cap without the stretching end on bonding prestress muscle top and is fixed with cushion cap.
2. variable-diameter cast-in-situ pile according to claim 1, is characterized in that, described second pile body has some juts extended to horizontal direction.
3. variable-diameter cast-in-situ pile according to claim 1, is characterized in that, the diameter of described second pile body is greater than the diameter 10cm ~ 20cm of described first pile body.
4. variable-diameter cast-in-situ pile according to claim 1, is characterized in that, each described vertical muscle is spaced apart in annular in described pile body, and described stirrup distributes in the shape of a spiral and is close to layout with each vertical muscle in pile body.
5. variable-diameter cast-in-situ pile according to claim 1, is characterized in that, described posttension is close to layout without bonding prestress muscle and described stirrup.
6. variable-diameter cast-in-situ pile according to claim 1, is characterized in that, the lateral wall of described first pile body is matsurface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520285176.6U CN204570678U (en) | 2015-05-06 | 2015-05-06 | A kind of variable-diameter cast-in-situ pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520285176.6U CN204570678U (en) | 2015-05-06 | 2015-05-06 | A kind of variable-diameter cast-in-situ pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204570678U true CN204570678U (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520285176.6U Expired - Fee Related CN204570678U (en) | 2015-05-06 | 2015-05-06 | A kind of variable-diameter cast-in-situ pile |
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| Country | Link |
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| CN (1) | CN204570678U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106013132A (en) * | 2016-05-23 | 2016-10-12 | 王继忠 | Diameter-varied composite pile |
| CN109056715A (en) * | 2018-08-23 | 2018-12-21 | 南京林业大学 | A kind of fiberglass reinforced plastics uplift pile and construction method |
| CN109056715B (en) * | 2018-08-23 | 2024-06-07 | 南京林业大学 | Glass fiber reinforced plastic uplift pile and construction method |
-
2015
- 2015-05-06 CN CN201520285176.6U patent/CN204570678U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106013132A (en) * | 2016-05-23 | 2016-10-12 | 王继忠 | Diameter-varied composite pile |
| CN106013132B (en) * | 2016-05-23 | 2018-06-08 | 王继忠 | A kind of reducing built pile |
| CN109056715A (en) * | 2018-08-23 | 2018-12-21 | 南京林业大学 | A kind of fiberglass reinforced plastics uplift pile and construction method |
| CN109056715B (en) * | 2018-08-23 | 2024-06-07 | 南京林业大学 | Glass fiber reinforced plastic uplift pile and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20190506 |