CN203684250U - Ultra-wide inverted T-shaped single pile foundation - Google Patents
Ultra-wide inverted T-shaped single pile foundation Download PDFInfo
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- CN203684250U CN203684250U CN201320880505.2U CN201320880505U CN203684250U CN 203684250 U CN203684250 U CN 203684250U CN 201320880505 U CN201320880505 U CN 201320880505U CN 203684250 U CN203684250 U CN 203684250U
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- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 6
- 239000002689 soil Substances 0.000 description 14
- 238000010276 construction Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses an ultra-wide inverted T-shaped single pile foundation. The single pile foundation is provided with a pile body, and is characterized in that the bottom of the pile body is provided with a pile pedestal of which the external diameter of the outline is greater than the diameter of the pile body, so that the single pile foundation is formed in an inverted T shape; the pile pedestal consists of an unsupported pile pedestal and a supported pile pedestal which are of an integrated structure; the unsupported pile pedestal is close to the pile body, and is presented as the integrated structure with the pile body; a supporting structure is arranged on the supported pile pedestal. The ultra-wide inverted T-shaped single pile foundation has the advantages that the pile body structure is simple, and the pile body is shorter; no matter which the single pile foundation is used as an end bearing pile or a friction pile, the anti-overturning capability and the bearing capability are higher.
Description
Technical field
The utility model relates to pile foundation, is specifically related to a kind of super wide inverted T shape single-pile foundation.
Background technology
Pile foundation is large with its bearing capacity, good stability, sedimentation value are little, can adapt to the features such as various geological conditionss and load situation and be widely applied in building, the hydraulic engineerings such as highrise building, large-sized workshop, water conservancy and hydropower hinge, railway engineering, highway engineering, bridge engineering, offshore production platform, nuclear power station.
Pile foundation is specifically made up of jointly foundation pile and the cushion cap that is connected in stake top, and building pile foundation is generally pile body and is all embedded in the embedded footing on piles, low capped pile foundation plinth in the soil body, is used to the building on it that enough bearing capacities are provided; The load of building passes to ground by its below pile foundation, the frictional resistance that wherein vertical load is generally produced by the resistance of stake substratum and pile body side and the soil body supports, and that is to say that pile foundation is broadly divided into two kinds of end bearing pile and friction piles by Force principle.
As shown in Figure 1, it is hard soil layer or rock stratum that end bearing pile 1 reaches hard formation 3(through Soft Soil Layer 2), the superstructure load of end bearing pile 1 is mainly born by hard formation 3 resistances; When construction, take pile penetration as main, pile top enters bearing stratum depth or pile top absolute altitude can be for referencial use.
As shown in Figure 2,4 of friction piles are arranged in Soft Soil Layer 2 completely, by its pile body by compacted Soft Soil Layer 2 reality, to improve native compactness and supporting capacity, the load of its superstructure is born jointly by the frictional resistance between end-resistance and pile body side and Soft Soil Layer 2, when construction, to control pile top design elevation as main, pile penetration can be for referencial use.
The existing problem of pile foundation is at present, can provide enough bearing capacities in order to ensure it to upper building, very big for the length requirement of pile body, and the pressure that this has not only increased construction cost aspect has also improved the difficulty of construction.
Summary of the invention
The purpose of this utility model is according to above-mentioned the deficiencies in the prior art part, a kind of super wide inverted T shape single-pile foundation is provided, this single-pile foundation, by the stake base of widening is set in pile body bottom, forms the single-pile foundation that is inverted T shape, to improve its resistance to capsizing and supporting capacity.
The utility model object realizes and being completed by following technical scheme:
A kind of super wide inverted T shape single-pile foundation, described single-pile foundation has pile body, it is characterized in that described pile body bottom has the stake base that profile outer diameter is greater than pile body diameter, make described single-pile foundation form inverted T shape, wherein said stake base is made up of non-support stake base and soldier pile base, and both are structure as a whole, and wherein said non-support stake base is close to described pile body, and being integrative-structure with described pile body, the top of described soldier pile base is provided with supporting and protection structure.
Described pile body and described stake base are structure as a whole.
Described supporting and protection structure is reinforcing bar, anchor pole or steel pipe.
The bearing of trend of described supporting and protection structure and the axis of described pile body are perpendicular, and it is spoke-like equably along being circumferentially arranged on described soldier pile base top that some described supporting and protection structure is outwards centered by described pile body.
The described stake profile outer diameter of base and the ratio of described pile body length are not more than 1:1.
Described pile body is cylindrical stake, and described stake base is in the form of annular discs.
Described pile body is cylindrical stake, described stake base is made up of some the wings that are positioned at described pile body bottom, and the described stake wing is strip, and its axle center from described pile body stretches out, and the axis of direction and described pile body is perpendicular, some described stake wings are arranged on described pile body outside symmetrically.
Described pile body is barrette, the described stake base type shape that is square.
The utility model has the advantages that, pile body structure is simple, and pile body is shorter, no matter is as end bearing pile or friction pile use, all has higher resistance to capsizing and supporting capacity.
Accompanying drawing explanation
Fig. 1 is end bearing pile schematic diagram in prior art;
Fig. 2 is friction pile schematic diagram in prior art;
Fig. 3 is the elevation of single-pile foundation in the utility model;
Fig. 4 is the top view I of single-pile foundation in the utility model;
Fig. 5 is the top view II of single-pile foundation in the utility model;
Fig. 6 is the top view III of single-pile foundation in the utility model.
The specific embodiment
Feature of the present utility model and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, so that technician's of the same trade understanding:
As Fig. 1-6, in figure, mark 1-9 is respectively: end bearing pile 1, Soft Soil Layer 2, hard formation 3, friction pile 4, pile body 5, stake base 6, non-support stake base 7, soldier pile base 8, supporting and protection structure 9;
Wherein a is that length, the b of non-support stake base are the height of widening that length, c are a base of widening of soldier pile base.
Embodiment: as shown in Figure 3, the present embodiment is specifically related to a kind of single-pile foundation that is used to its upper building that enough bearing capacities are provided, the facade of this single-pile foundation is inverted T shape shape, increase stake basal cross section by the bottom position at pile body 5, enable to provide the pressure-bearing cross section much larger than the stake of prior art mesopore, to improve its resistance to capsizing and bearing capacity, reduce the length of single-pile foundation simultaneously.
As shown in Figure 3,4, the pile body 5 of this single-pile foundation is cylindrical stake, be provided with super wide stake base 6 in the form of annular discs in the bottom of pile body 5, both are integrated syndeton, its king-pile base 6 is made up of non-support stake base 7 and soldier pile base 8 two parts, non-support stake base 7 is positioned at inner ring, and soldier pile base 8 is positioned at outer ring, and both are similarly integrative-structure; In addition, above soldier pile base 8, be also provided with the supporting and protection structure 9 of some, a part for supporting and protection structure 9 is positioned at the top of soldier pile base 8, another part is embedded in the soil body in advance, the axis of the bearing of trend of each supporting and protection structure 9 and pile body 5 is perpendicular, specifically centered by pile body 5, be outwards spoke-like being uniformly distributed, the supporting and protection structure 9 addressed in the present embodiment can be reinforcing bar, anchor pole or steel pipe.The bottom surface of stake base 6 is as the pressure-bearing surface of this single-pile foundation, its outline diameter is much larger than the diameter of pile body 5, so that pressure-bearing cross section is greater than the pressure-bearing cross section of conventional hole stake at the bottom of it, the outline diameter of its king-pile base 6 is four times of pile body 5 diameters, that is to say that the one side widening length (a+b) of a base 6 is for the twice of pile body 5 radiuses, what it was concrete widen length (a+b) value should carry out designing and calculating according to different soil properties and requirement for bearing capacity, and the value of widening height c of stake base 6 should be carried out designing and calculating depending on different soil properties and requirement for bearing capacity equally.
As shown in Figure 3, in the time of this super wide inverted T shape single-pile foundation construction, first adopt mechanical hole building or manually digging hole to form the hole of pile body 5, for the hole part of the soldier pile base 8 of formation after avoiding can not be born deadweight and then cave in, must add at this place necessary advance support, this advance support adopts and penetrates in advance skeleton, as forms such as reinforcing bar, anchor pole, steel pipes, be equipped with if desired whitewashing reinforcing etc., this is supporting and protection structure 9; After treating that supporting and protection structure 9 is default, carry out the pore-forming of a base 6; After pile hole construction, determine as required whether below arranges the specification of reinforcing cage and reinforcing cage, last concreting pile.It should be noted that, the length b of soldier pile base 8, soldier pile base 8 need to carry out the length b of advance support and need to calculate determined according to different soil properties and bearing capacity in other words.
The shape of the pile body 5 of single-pile foundation and stake base 6 is not unique in the present embodiment.
As shown in Figure 5, the pile body 5 of single-pile foundation is square pile body, its base 6 is greater than the quadrilateral structure body of pile body 5 length of sides for the outline length of side, both are integrated pouring structure, and advance support need to be carried out by supporting and protection structure 9 equally in the outer ring of stake base 6, the concrete square frame along stake base 6 of supporting pile structure 9 is evenly spaced apart vertically.
Again as shown in Figure 6, the pile body 5 of single-pile foundation is still cylindrical stake, its base 6 is made up of three stake wings that are positioned at pile body 5 bottoms, the stake bearing of trend of the wing and the axis of pile body 5 are perpendicular, each the wing is outwards spoke-like its surrounding that is arranged on equably from the axle center of pile body 5, i.e. 120 °, interval between the adjacent stake wing; In addition, on each the wing, be divided into equally inner ring non-support stake base 7 and soldier pile base 8, above soldier pile base 8, be provided with supporting and protection structure 9 it carried out to advance support.
Other various distortion exemplify no longer one by one.
In the present embodiment, the beneficial effect of super wide inverted T shape single-pile foundation is specially:
1. simple in structure;
2. the bottom of single-pile foundation is compared with the stake of conventional hole, increase a super wide stake base, because this super wide base can increase substantially stability and the bearing value of stake in Soft Soil Layer or while touching hard formation, therefore can greatly reduce the length of single-pile foundation, reduce difficulty of construction and cost; In addition, this single-pile foundation relies on the interaction force between its inverted T shape structure and the soil body, can effectively improve its resistance to capsizing.
Claims (8)
1. a super wide inverted T shape single-pile foundation, described single-pile foundation has pile body, it is characterized in that described pile body bottom has the stake base that profile outer diameter is greater than pile body diameter, make described single-pile foundation form inverted T shape, wherein said stake base is made up of non-support stake base and soldier pile base, and both are structure as a whole, and wherein said non-support stake base is close to described pile body, and being integrative-structure with described pile body, the top of described soldier pile base is provided with supporting and protection structure.
2. the super wide inverted T shape single-pile foundation of one according to claim 1, is characterized in that described pile body and described stake base are structure as a whole.
3. the super wide inverted T shape single-pile foundation of one according to claim 1, is characterized in that described supporting and protection structure is reinforcing bar, anchor pole or steel pipe.
4. the super wide inverted T shape single-pile foundation of one according to claim 1, it is characterized in that the bearing of trend of described supporting and protection structure and the axis of described pile body are perpendicular, it is spoke-like equably along being circumferentially arranged on described soldier pile base top that some described supporting and protection structure is outwards centered by described pile body.
5. the super wide inverted T shape single-pile foundation of one according to claim 1, is characterized in that the described stake profile outer diameter of base and the ratio of described pile body length are not more than 1:1.
6. the super wide inverted T shape single-pile foundation of one according to claim 1, is characterized in that described pile body is cylindrical stake, and described stake base is in the form of annular discs.
7. the super wide inverted T shape single-pile foundation of one according to claim 1, it is characterized in that described pile body is cylindrical stake, described stake base is made up of some the wings that are positioned at described pile body bottom, the described stake wing is strip, its axle center from described pile body stretches out, and the axis of direction and described pile body is perpendicular, some described stake wings are arranged on described pile body outside symmetrically.
8. the super wide inverted T shape single-pile foundation of one according to claim 1, is characterized in that described pile body is barrette, the described stake base type shape that is square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320880505.2U CN203684250U (en) | 2013-12-30 | 2013-12-30 | Ultra-wide inverted T-shaped single pile foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320880505.2U CN203684250U (en) | 2013-12-30 | 2013-12-30 | Ultra-wide inverted T-shaped single pile foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203684250U true CN203684250U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320880505.2U Expired - Lifetime CN203684250U (en) | 2013-12-30 | 2013-12-30 | Ultra-wide inverted T-shaped single pile foundation |
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| Country | Link |
|---|---|
| CN (1) | CN203684250U (en) |
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2013
- 2013-12-30 CN CN201320880505.2U patent/CN203684250U/en not_active Expired - Lifetime
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |