CN203684252U - U-shaped row pile foundation - Google Patents
U-shaped row pile foundation Download PDFInfo
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- CN203684252U CN203684252U CN201320880558.4U CN201320880558U CN203684252U CN 203684252 U CN203684252 U CN 203684252U CN 201320880558 U CN201320880558 U CN 201320880558U CN 203684252 U CN203684252 U CN 203684252U
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- basis
- campshed
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- footing
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- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000002689 soil Substances 0.000 description 12
- 238000010276 construction Methods 0.000 description 11
- 230000003014 reinforcing effect Effects 0.000 description 6
- 238000005553 drilling Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 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 a U-shaped row pile foundation. The U-shaped row pile foundation consists of a plurality of arranged single piles, and is characterized in that the bottoms of the adjacent single piles in the row pile foundation are mutually connected by pile crossbeams; the pile crossbeams and the single piles are integrated; the row pile foundation is enabled to be in the shape of U-shaped piles. The U-shaped row pile foundation has the advantages that the structure is simple; as the pile crossbeams connected with the adjacent single piles are additionally arranged on the bottom of the row pile foundation, and a pile footing is additionally arranged on the bottom of each of the single piles to increase the overall pressure-bearing section of the row pile foundation, the overall pressure-bearing capability and the anti-overturning capability of a pile group are effectively improved; compared with a conventional row pile foundation having the same pressure-bearing capability, the length of the single piles can be effectively decreased.
Description
Technical field
The utility model relates to pile foundation, is specifically related to a kind of U font campshed basis.
Background technology
Campshed basis is the building pile basis structure of arranging composition with certain type by queue-type, and it is large with 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.
Campshed basis is specifically made up of jointly some foundation piles and the cushion cap that is connected in stake top, 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, taking 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 current existing problem in campshed basis is: 1. can provide enough bearing capacities in order to ensure it to upper building, very big for the length requirement of pile body, the pressure that this has not only increased construction cost aspect, has also improved the difficulty of construction; 2. at adjacent foundation pile top, coupling beam is set conventionally and interconnects, to increase the resistance to overturning on campshed basis, but its effect is very limited, and cost is higher, affects the construction of upper building.
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 U font campshed basis is provided, this campshed basis arranges a crossbeam realization by the single pile bottom adjacent and is interconnected to constitute one, to provide much larger than the pressure-bearing cross section on conventional campshed basis, improve its overall stress-bearing capability.
The utility model object realizes and being completed by following technical scheme:
A kind of U font campshed basis, this campshed basis is rearranged by some single piles, it is characterized in that described single pile bottom adjacent in described campshed basis interconnects by stake crossbeam, described stake crossbeam and described single pile are structure as a whole, and make described campshed basis be U-shaped stake shape.
Described stake crossbeam diameter is identical with described single pile diameter.
Described single pile bottom has footing with described stake crossbeam intersection location place, and described footing is perpendicular with described crossbeam, and described footing and described single pile axis perpendicular.
The length of described footing is at least the twice of described single pile diameter.
Described footing is strip.
Described footing semicircular in shape shape.
Described semicircular radius is at least the twice of described single pile diameter.
The utility model has the advantages that, U font campshed foundation structure is simple, by set up the stake crossbeam that connects adjacent single pile in campshed foundation bottom, and by setting up footing in each single pile bottom, to increase the overall pressure-bearing cross section on campshed basis, the overall bearing capacity and the resistance to capsizing that effectively improve pile group, compared with having the conventional campshed basis of equal bearing capacity, single pile length can effectively shorten.
Brief description of the drawings
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 part elevation figure on U-shaped campshed basis in the utility model embodiment mono-;
Fig. 4 is the partial plan layout on U-shaped campshed basis in the utility model embodiment mono-;
Fig. 5 is the overall elevation on U-shaped campshed basis in the utility model embodiment mono-;
Fig. 6 is the part elevation figure on U-shaped campshed basis in the utility model embodiment bis-;
Fig. 7 is the partial plan layout on U-shaped campshed basis in the utility model embodiment bis-;
Fig. 8 is the part elevation figure on U-shaped campshed basis in the utility model embodiment tri-;
Fig. 9 is the partial plan layout on U-shaped campshed basis in the utility model embodiment tri-.
Detailed description of the invention
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. 1-9, in figure, mark 1-9 is respectively: end bearing pile 1, Soft Soil Layer 2, hard formation 3, friction pile 4, single pile 5, stake crossbeam 6, campshed basis 7, bar shaped footing 8, semicircle footing 9.
Embodiment mono-: as shown in Figure 5, the present embodiment is specifically related to a kind of U font campshed basis 7 that is used to its upper building that enough bearing capacities are provided, by a crossbeam 6 being set so that the each single pile 5 in it is connected in 7 bottoms, campshed basis, making it provides the pressure-bearing cross section much larger than former porose stake, and improves the overall stress-bearing capability of pile group.
As shown in Fig. 3,4,5, campshed basis 7 in the present embodiment is rearranged by some single piles 5 that go deep in the soil body, each adjacent single pile 5 bottoms interconnect by stake crossbeam 6, and adjacent single pile 5 is formed by integrally casting reinforced concrete structure with stake crossbeam 6, so that form U font structure between each adjacent single pile 5 in campshed basis 7; Wherein each single pile 5 is the cylindrical pile body of vertical setting, and 6, crossbeam of stake is horizontally disposed cylindrical pile body, and the diameter of stake crossbeam 6 is identical with the diameter of single pile 5.
As shown in Fig. 3,4,5, U font campshed basis 7 in the present embodiment is in the time of construction, first adopt the mode of mechanical hole building or manually digging hole to carry out vertical pore-forming on two ground, place separated by a distance, adjacent single pile 5 is carried out to pore-forming, in vertical hole, transfer afterwards that cross drilling device carries out horizontal pore-forming so that be communicated with between adjacent vertical hole, stake crossbeam 6 is carried out to pore-forming; After treating pile hole construction, determine as required whether below arranges the specification of reinforcing cage and reinforcing cage, last concreting pile, forms U font campshed basis 7.
In the present embodiment, adopt the beneficial effect on U font campshed basis to be specially: U font campshed foundation structure is simple, set up the stake crossbeam that connects both by the single pile bottom adjacent, not only make each single pile be linked to be overall force structure, promote pile group holistic resistant behavior, provide much larger than the pressure-bearing cross section on conventional campshed basis simultaneously, its bearing value is promoted greatly, and compared with having the conventional campshed basis of equal bearing value, single pile length can effectively shorten.
Embodiment bis-: as shown in Figure 6,7, with respect to the U font campshed basis described in embodiment mono-, bar shaped footing 8 has been set up in the bottom of each single pile 5 in campshed basis in the present embodiment, further to increase pressure-bearing cross section on the basis on campshed basis described in embodiment mono-, and promote the resistance to capsizing on campshed basis.
As shown in Figure 6,7, each single pile 5 bottoms and described stake crossbeam 6 intersection location places all have two the bar shaped footings 8 perpendicular with stake crossbeam 6, the two ends of these two bar shaped footings, 8 apportion stake crossbeams 6, and bar shaped footing 8 is perpendicular with the axis of single pile 5; Bar shaped footing 8 is cylindrical pile body, can be also barrette, and the length of this bar shaped footing 8 is the twice of single pile diameter, certainly also can suitably lengthen according to soil property and requirement for bearing capacity.
As shown in Figure 6,7, U font campshed basis in the present embodiment is in the time of construction, first adopt the mode of mechanical hole building or manually digging hole to carry out vertical pore-forming on two ground, place separated by a distance, adjacent single pile 5 is carried out to pore-forming, in vertical hole, transfer afterwards that cross drilling device carries out horizontal pore-forming so that be communicated with between adjacent vertical hole, stake crossbeam 6 is carried out to pore-forming, thereafter again by this cross drilling device carrying out pore-forming with the perpendicular direction of stake crossbeam 6 holes, bar shaped footing 8 is carried out to pore-forming; After treating pile hole construction, determine as required whether below arranges the specification of reinforcing cage and reinforcing cage, last concreting pile, forms U font campshed basis.
In the present embodiment, adopt the beneficial effect on U font campshed basis to be specially:
U font campshed foundation structure is simple, set up the stake crossbeam that connects both by the single pile bottom adjacent, not only make each single pile be linked to be overall force structure, promote pile group holistic resistant behavior, provide much larger than the pressure-bearing cross section on conventional campshed basis simultaneously, its bearing value is promoted greatly;
In addition further increase the pressure-bearing cross section on campshed basis by setting up bar shaped footing 8 in the bottom of single pile 5, and by means of the interaction force between bar shaped footing 8 and the soil body, can effectively promote its resistance to capsizing;
This campshed basis is compared with having the conventional campshed basis of equal bearing value, and single pile length can effectively shorten.
Embodiment tri-: as shown in Figure 8,9, with respect to the U font campshed basis described in embodiment mono-, semicircle footing 9 has been set up on campshed basis in the present embodiment in the bottom of each single pile 5, further to increase pressure-bearing cross section on the basis on campshed basis described in embodiment mono-, and promote the resistance to capsizing on campshed basis.
As shown in Figure 8,9, each single pile 5 bottoms and described stake crossbeam 6 intersection location places all have two semicircle footings 9 of horizontally disposed semicircular in shape shape, the two ends of these two semicircle footing 9 apportion stake crossbeams 6; Semicircle footing 9 is structure as a whole with single pile 5, its semicircular radius is the twice of single pile 5 diameters, certainly its radius also can suitably lengthen according to soil property and requirement for bearing capacity, obviously, the semicircle footing 9 in the present embodiment provides pressure-bearing cross section and the stability against overturning energy than bar shaped footing is larger in embodiment bis-.
As shown in Figure 8,9, U font campshed basis in the present embodiment is in the time of construction, first adopt the mode of mechanical hole building or manually digging hole to carry out vertical pore-forming on two ground, place separated by a distance, adjacent single pile 5 is carried out to pore-forming, in vertical hole, transfer afterwards that cross drilling device carries out horizontal pore-forming so that be communicated with between adjacent vertical hole, stake crossbeam 6 is carried out to pore-forming, again by this cross drilling device with stake crossbeam 6 holes perpendicular direction swing reaming form semicircle interval, semicircle footing 9 is carried out to pore-forming thereafter; After treating pile hole construction, determine as required whether below arranges the specification of reinforcing cage and reinforcing cage, last concreting pile, forms U font campshed basis.
It should be noted that, in the present embodiment, semicircle footing 9 is not limited to be the semicircle of 180 °, also comprises the fan-shaped of 180 ° of less thaies.
In the present embodiment, adopt the beneficial effect on U font campshed basis to be specially:
U font campshed foundation structure is simple, set up the stake crossbeam that connects both by the single pile bottom adjacent, not only make each single pile be linked to be overall force structure, promote pile group holistic resistant behavior, provide much larger than the pressure-bearing cross section on conventional campshed basis simultaneously, its bearing value is promoted greatly;
In addition further increase the pressure-bearing cross section on campshed basis by set up semicircle footing 9 in the bottom of single pile 5, and by means of the interaction force between semicircle footing 9 and the soil body, can effectively promote its resistance to capsizing;
This campshed basis is compared with having the conventional campshed basis of equal bearing value, and single pile length can effectively shorten.
Claims (7)
1. a U font campshed basis, this campshed basis is rearranged by some single piles, it is characterized in that described single pile bottom adjacent in described campshed basis interconnects by stake crossbeam, described stake crossbeam and described single pile are structure as a whole, and make described campshed basis be U-shaped stake shape.
2. a kind of U font campshed according to claim 1 basis, is characterized in that described stake crossbeam diameter is identical with described single pile diameter.
3. a kind of U font campshed according to claim 1 basis, is characterized in that described single pile bottom and described stake crossbeam intersection location place have footing, and described footing is perpendicular with described crossbeam, and described footing and described single pile axis perpendicular.
4. a kind of U font campshed according to claim 3 basis, is characterized in that the length of described footing is at least the twice of described single pile diameter.
5. a kind of U font campshed according to claim 3 basis, is characterized in that described footing is strip.
6. a kind of U font campshed according to claim 3 basis, is characterized in that described footing semicircular in shape shape.
7. a kind of U font campshed according to claim 6 basis, is characterized in that described semicircular radius is at least the twice of described single pile diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320880558.4U CN203684252U (en) | 2013-12-30 | 2013-12-30 | U-shaped row pile foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320880558.4U CN203684252U (en) | 2013-12-30 | 2013-12-30 | U-shaped row pile foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203684252U true CN203684252U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320880558.4U Expired - Lifetime CN203684252U (en) | 2013-12-30 | 2013-12-30 | U-shaped row pile foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203684252U (en) |
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2013
- 2013-12-30 CN CN201320880558.4U patent/CN203684252U/en not_active Expired - Lifetime
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |
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| CX01 | Expiry of patent term |