CN204570677U - A kind of expansive concrete bored pile - Google Patents
A kind of expansive concrete bored pile Download PDFInfo
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- CN204570677U CN204570677U CN201520285157.3U CN201520285157U CN204570677U CN 204570677 U CN204570677 U CN 204570677U CN 201520285157 U CN201520285157 U CN 201520285157U CN 204570677 U CN204570677 U CN 204570677U
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- pile body
- pile
- steel strand
- concrete
- expansive
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Abstract
The utility model provides a kind of expansive concrete bored pile, comprise the vertical pile body arranged and the cushion cap being connected in this pile body top, the lower end of pile body is provided with waters concrete base, pile body has the ordinary concrete section and expansive concrete section composition bamboo knot shaped structure of alternately building, wherein, the upper end of steel strand pipe anchors into cushion cap, lower end anchors into waters concrete base, the longitudinal steel strand pipe simultaneously arranged according to cracking resistance demand in pile body is applied with longitudinal prestressing force to pile body, thus improve bearing capacity of pile and extraction-resistant behavior preferably, reduce the possibility of the rear further corrosion of reinforcing bar of pile body cracking, improve the durability of pile foundation, in addition, bearing capacity and the resistance to plucking effect that concrete base and Bamboo-shaped pile body can further improve pile body is watered in the utility model, 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 expansive concrete bored 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-place expansive concrete bored pile.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, low bearing capacity, 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 expansive concrete bored pile, and not only bearing capacity is high, and pulling test strength is high simultaneously.
The utility model patent provides a kind of expansive concrete bored pile, comprise the vertical pile body arranged and the cushion cap being connected in this pile body top, the lower end of described pile body is provided with waters concrete base, described pile body has the ordinary concrete section and expansive concrete section composition bamboo knot shaped structure of alternately building, the diameter of described expansive concrete section is greater than the diameter of described ordinary concrete section, be provided with in described pile body: the some steel strand pipes vertically arranged, and the stirrup be wrapped in outside described each steel strand pipe, and the upper end of described steel strand pipe is anchored at by snap close on the upper surface of described cushion cap, water on the lower surface of concrete base described in the lower end of described steel strand pipe is anchored at by snap close, described steel strand pipe is provided with some outwardly juts, to increase the frictional force between described steel strand pipe and pile body.
Preferably, described expansive concrete section and ordinary concrete section uniform intervals distribute.
Preferably, steel plate is provided with between the upper surface of described cushion cap and snap close.
Preferably, water described between the lower surface of concrete base and snap close and be provided with steel plate.
Preferably, each described steel strand pipe uniform intervals distribution in described pile body, the cross section of described stirrup is helix shape and twists pipe with each steel to be close to layout.
The beneficial effect that the technical scheme that the utility model provides is brought is: the upper end of the utility model steel strand pipe anchors into cushion cap, lower end anchors into waters concrete base, the longitudinal steel strand pipe simultaneously arranged according to cracking resistance demand in pile body is applied with longitudinal prestressing force to pile body, thus improve bearing capacity of pile and extraction-resistant behavior preferably, reduce the possibility of the rear further corrosion of reinforcing bar of pile body cracking, improve the durability of pile foundation, in addition, bearing capacity and the resistance to plucking effect that concrete base and Bamboo-shaped pile body can further improve pile body is watered in the utility model, 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 expansive concrete bored pile that the utility model provides.
[in figure Reference numeral]:
10. pile body, 20. cushion caps, 30. water concrete base, 40. steel strand pipes, 50. stirrups, 60. snap closes, 70. expansive concrete sections, 80. steel plates, 90. juts.
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 expansive concrete bored pile that the utility model provides.
As shown in Figure 1, the utility model provides a kind of expansive concrete bored pile, comprise the vertical pile body 10 arranged and the cushion cap 20 being connected in this pile body 10 top, the lower end of pile body 10 is provided with waters concrete base 30, pile body 10 has the ordinary concrete section of alternately building and expansive concrete section 70 forms bamboo knot shaped structure, the diameter of expansive concrete section 70 is greater than the diameter of described ordinary concrete section, be provided with in pile body 10: the some steel strand pipes 40 vertically arranged, and the stirrup 50 be wrapped in outside each steel strand pipe 40, and the upper end of steel strand pipe 40 is anchored at by snap close 60 on the upper surface of cushion cap 20, steel strand pipe 40 lower end be anchored at by snap close 60 water concrete base 30 lower surface on, steel strand pipe 40 is provided with some outwardly juts 90, to increase the frictional force between steel strand pipe 40 and pile body 10.
Concrete, in the present embodiment, expansive concrete section 70 and ordinary concrete section uniform intervals distribute, and meanwhile, are provided with steel plate 80 between the upper surface of cushion cap 20 and snap close 60, water between the lower surface of concrete base 30 and snap close 60 and be provided with steel plate 80.
In preferred version, each steel strand pipe 40 uniform intervals distribution in pile body 10, the cross section of stirrup 50 is helix shape and twists pipe 40 with each steel to be close to layout.
In sum, the upper end of the utility model steel strand pipe 40 anchors into cushion cap 20, lower end anchors into waters concrete base 30, the longitudinal steel strand pipe 40 pairs of pile bodies simultaneously arranged according to cracking resistance demand in pile body 10 are applied with longitudinal prestressing force, thus improve bearing capacity of pile and extraction-resistant behavior preferably, reduce the possibility of the rear further corrosion of reinforcing bar of pile body cracking, improve the durability of pile foundation, in addition, bearing capacity and the resistance to plucking effect that concrete base 30 and Bamboo-shaped pile body can further improve pile body is watered in the utility model, 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 (5)
1. an expansive concrete bored pile, comprise the vertical pile body arranged and the cushion cap being connected in this pile body top, it is characterized in that, the lower end of described pile body is provided with waters concrete base, described pile body has the ordinary concrete section and expansive concrete section composition bamboo knot shaped structure of alternately building, the diameter of described expansive concrete section is greater than the diameter of described ordinary concrete section, be provided with in described pile body: the some steel strand pipes vertically arranged, and the stirrup be wrapped in outside described each steel strand pipe, and the upper end of described steel strand pipe is anchored at by snap close on the upper surface of described cushion cap, water on the lower surface of concrete base described in the lower end of described steel strand pipe is anchored at by snap close, described steel strand pipe is provided with some outwardly juts, to increase the frictional force between described steel strand pipe and pile body.
2. expansive concrete bored pile according to claim 1, is characterized in that, described expansive concrete section and ordinary concrete section uniform intervals distribute.
3. expansive concrete bored pile according to claim 1, is characterized in that, is provided with steel plate between the upper surface of described cushion cap and snap close.
4. expansive concrete bored pile according to claim 1, is characterized in that, described in water between the lower surface of concrete base and snap close and be provided with steel plate.
5. expansive concrete bored pile according to claim 1, is characterized in that, each described steel strand pipe uniform intervals distribution in described pile body, the cross section of described stirrup is helix shape and twists pipe with each steel to be close to layout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520285157.3U CN204570677U (en) | 2015-05-06 | 2015-05-06 | A kind of expansive concrete bored pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520285157.3U CN204570677U (en) | 2015-05-06 | 2015-05-06 | A kind of expansive concrete bored pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204570677U true CN204570677U (en) | 2015-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520285157.3U Expired - Fee Related CN204570677U (en) | 2015-05-06 | 2015-05-06 | A kind of expansive concrete bored pile |
Country Status (1)
| Country | Link |
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| CN (1) | CN204570677U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108166484A (en) * | 2017-12-18 | 2018-06-15 | 三峡大学 | A kind of the expansive concrete steel-pipe pile and construction method of multi-functional stress dispersing type |
-
2015
- 2015-05-06 CN CN201520285157.3U patent/CN204570677U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108166484A (en) * | 2017-12-18 | 2018-06-15 | 三峡大学 | A kind of the expansive concrete steel-pipe pile and construction method of multi-functional stress dispersing type |
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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 |
Granted publication date: 20150819 Termination date: 20190506 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |