CN201962670U - Composite pile and combination thereof - Google Patents
Composite pile and combination thereof Download PDFInfo
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- CN201962670U CN201962670U CN2010206485605U CN201020648560U CN201962670U CN 201962670 U CN201962670 U CN 201962670U CN 2010206485605 U CN2010206485605 U CN 2010206485605U CN 201020648560 U CN201020648560 U CN 201020648560U CN 201962670 U CN201962670 U CN 201962670U
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Abstract
The utility model relates to a foundation composite pile, which is applied to a large-sized ground photovoltaic power station. The foundation composite pile comprises a pile body and a rib, wherein the lower end of the pile body is closed up, and has a certain taper; and the rib extends outwards from the circumferential wall of the pile body, and can be sleeved on the pile body to enhance the withdrawal resistance and overturning resistance of the composite pile. A plurality of composite piles can be connected with one another through connecting pieces, so that the stability of a photovoltaic array arranged on the combination of the composite piles is ensured.
Description
[technical field]
The utility model relates to a kind of composite pile, especially is applied to the basic composite pile of large-scale ground photo-voltaic power generation station.
[technical background]
The large-scale ground photo-voltaic power generation station mainly is made of photovoltaic array, the quantity of photovoltaic array is directly proportional with the capacity in power station, and the quantity of photovoltaic array has directly determined to be used to install the quantity of the foundation pile of photovoltaic array, such as the photovoltaic plant of 10MW at present, approximately needs about 20,000 on basis.
In the past, the main reinforced concrete architecture basics that adopts in basis, long construction period not only, and can damage the face of land.There are modes such as the friction pile of bringing into use, screw pile to substitute reinforcing bar cement structures basis at present both at home and abroad.Friction pile mainly adopts section bar or round steel directly to insert soil, and to soil uniformity requirement height, and uplift resistance is less, and resistance to capsizing is not good yet; Screw pile adopts rotary machine to screw in soil, certain uplift resistance is arranged, but overturning or slip resistance analysis is not good.
Area, China the most suitable development large-sized photovoltaic power station address structure is mainly sandy beach, Gobi desert, frozen soil layer and the coastal saline and alkaline beach of the Northwest.When ground is sand or sandy soil, cause intermediate soil to flow through washing away of long-term rain, can cause loosening, the displacement and the inclination of stake, cause the distortion of array, destroy structure; When at cold district, the face of land alternately freezing can occur and melt, and surface layer constantly expands and shrinks, and causes the periodically displacement of pile foundation base section, makes soil disturbance or produces the cavity, thereby make foundation pile loosening; When the drift sand geological condition, almost can't construct in the reinforced concrete basis, and friction pile and screw pile are fixed on stabilized zone after need punching drift sand formation, and penetrate the degree of depth of stabilized zone must be greater than drift sand formation 1-2 height doubly.
So be applied to the foundation pile of unstable geology, as sandy beach, Gobi desert, frozen soil layer and coastal saline and alkaline beach etc., be necessary.
[summary of the invention]
At the problems referred to above, a kind of composite pile of the utility model, it comprises pile body and fin, and close up and have certain taper in described pile body lower end, and described fin is stretched out by the perisporium of pile body.Described fin can be divided into hollow section and two parts of flank, and described flank is stretched out by the perisporium of hollow section, and described hollow section removably is placed on the described pile body.Described pile body and fin also can be adopted as integrated processing mode.
Described flank is parallel with the axis of described hollow section, can prevent the translation gliding after composite pile is driven underground.Described flank can be one or more pieces, and evenly distributes along described hollow section is peripheral, and preferably the axis about described hollow section is symmetrically distributed, and can prevent the translation gliding of composite pile on a plurality of directions.The shape of described flank can be fan-shaped or quadrangle, and has the barb of projection on it, and described barb upper end height of projection is higher than the lower end height of projection, can increase the uplift resistance of pile body under the prerequisite that does not increase piling pressure.
The pile body of described composite pile can adopt screw pile or friction pile, have the first waist straight hole on it, and have through hole on the described hollow section, run through the first waist straight hole on the described pile body and the through hole on the hollow section, described pile body and fin removably can be assembled together by installed part.The described first waist straight hole can be designed to prolate shape, and after described fin was assemblied in described pile body by installed part, described installed part can slide up and down in described waist straight hole, drives described fin and slides up and down on described pile body.
A plurality of composite piles can couple together by connector, can on described composite pile pile body or fin, offer the second waist straight hole, then described connector is inserted the second waist straight hole in the different composite stake respectively, with together, the uplift resistance of single composite pile and overturning or slip resistance analysis power are strengthened greatly with a plurality of composite pile combine and assemble.The beneficial effects of the utility model are:
(1) has fin on the pile body of the present utility model, good antidumping is arranged, when a plurality of composite pile forming array structure, can not cause the inclination of stake, loosening and displacement, thereby guarantee the firm and safety of array structure;
(2) the face of land alternately freezing appears and the situation of melting under because the fin in the utility model can slide up and down, eliminated the displacement of soil swelling and contraction on pile body, thereby made this composite pile can not produce periodically displacement and make pile body loosening;
(3) when the drift sand geological condition, the utility model is fixed on stabilized zone after punching drift sand formation, the vertical fin with top couples together again, can the surface flow sand bed is firm, can guarantee the surface flow sand bed substantially not occurred level move, the composite pile implantation depth can effectively reduce.
[description of drawings]
Fig. 1 is the profile schematic diagram of the utility model composite pile;
Fig. 2 is a fin vertical view of the present utility model;
Fig. 3 is for offering the schematic diagram of the second waist straight hole on the pile body of the present utility model;
Fig. 4 is that fin of the present utility model is placed in the connection diagram on the pile body;
Fig. 5 is the connection diagram that is pressed into a kind of a plurality of composite piles of drift sand geology;
Fig. 6 is the connection diagram that is pressed into a kind of a plurality of composite piles of frozen soil geology;
Fig. 7 is pressed into the schematic diagram of another kind of drift sand geology for the utility model composite pile.
[specific embodiment]
Referring to Fig. 1-4, a kind of composite pile of the utility model comprises pile body 1 and fin 2, closes up and have certain taper in the lower end of pile body 1, is convenient to composite pile and vertically is pressed into or rotates and be pressed into soil.Fin 2 is protruding by the perisporium of pile body 1, in order to improve the uplift resistance and the overturning or slip resistance analysis power of composite pile.Fin 2 can be directly and pile body 1 one-body molded processing, also can be by fixedly connected extending out on the pile body 1, and such as the fin 2 of welding some on pile body 1, or with fin 2 dismountable being placed on the pile body 1.According to different edaphic condition, can change the height and the width of fin 2, also can adjust the quantity of fin 2.The surface of fin 2 can form the barb 24 of some by handling, and under the situation that does not increase the composite pile setting pressure, increases substantially the pulling test strength of composite pile.
When with fin 2 is dismountable when being placed on the pile body 1, described fin 2 can be divided into hollow section 21 and 22 two parts of flank, and flank 22 is stretched out by the perisporium of hollow section 21, and hollow section 21 removably is placed on the pile body 21.Hollow section 21 and flank 22 also can be adopted as integrated processing mode.
The pile body 1 of described composite pile can adopt screw pile or friction pile, when with fin 2 is dismountable when being placed on the pile body 1, can on pile body 1, open the first waist straight hole 11, open hole 23 on the hollow section 21 on the fin 2, installed part 4 is run through the first waist straight hole 11 on the described pile body and the through hole 23 on the hollow section 21, described pile body 1 and fin 2 removably are assembled together.
As shown in Figure 5, a plurality of composite piles can couple together by connector 3, make single composite pile be combined into integral body, the uplift resistance and the overturning or slip resistance analysis power of composite pile array are strengthened greatly, can not cause the inclination of composite pile, loosening and displacement, when photovoltaic array being installed thereon, the combinative stability of photovoltaic array will strengthen greatly, thereby guarantee the firm and safety of array structure.As shown in Figure 3, can on described composite pile pile body 1 or fin 2, offer the second waist straight hole 12, then described connector 3 be inserted the second waist straight hole 12 in the different composite stake respectively, with together a plurality of composite pile combine and assemble.
Occur on the face of land under the situation of alternately freezing and thawing, the uneven problem of displacement that causes owing to soil swelling and contraction can appear, as shown in Figure 6, the expansion that the pile body 1 on the left side causes among Fig. 6 is less, and the expansion that the right causes is bigger, when linking together, composite pile is produced become flexible, tilt even damage; So the first waist straight hole 11 can be designed to prolate shape, as shown in Figure 4, after described fin 2 was assemblied in described pile body 1 by installed part 4, described installed part 4 can slide up and down in the described first waist straight hole 11, drives described fin 2 and slides up and down on described pile body 1.Like this, when displacement between the composite pile occurring when uneven, fin 2 can slide up and down on pile body 1 along the direction of the first waist straight hole, eliminating soil swelling and to shrink the displacement inequality that causes, thereby guarantees the stability between the composite pile.
Drift sand geology as shown in Figure 5, figure passes through Exposure to Sunlight for stabilized zone silt at the middle and upper levels or rolls the temporary transient stabilized zone of formation, and the centre is a drift sand formation, and orlop is the stabilized zone of nature.It is not enough that pile body 1 is fixed in the upper strata, needs to be fixed in stabilized zone after punching drift sand formation, just can reach the intensity that photovoltaic array needs is installed.After composite pile pile body 1 of the present utility model is squeezed into the stabilized zone of nature, fin 2 with top couples together by connector 3 again, can the temporary transient stabilized zone on upper strata is firm, guarantee its not occurred level move, the implantation depth of composite pile comes compared with existing friction pile or screw pile like this, can effectively reduce.
Drift sand geology as shown in Figure 7, figure is drift sand formation at the middle and upper levels, lower floor is the stabilized zone of nature.Pile body 1 is fixed in the stabilized zone of nature.Because its top all is drift sand formation, fin 2 is fixed in drift sand formation has little significance, so fin 2 directly can be squeezed into stabilized zone, improves the uplift resistance and the overturning or slip resistance analysis power of single composite pile.It squeezes into mode can put a blank pipe on pile body 1, fin 2 is propped up, and squeezes into stabilized zone, blank pipe is taken away again.Because this moment, fin 2 was positioned at underground, so a plurality of composite piles can't be coupled together, but because fin 2 has been fixed in stabilized zone, compared with existing friction pile and screw pile, its uplift resistance and overturning or slip resistance analysis power significantly strengthen, and the implantation depth of composite pile also can effectively reduce.
Claims (10)
1. composite pile, it is characterized in that: described composite pile comprises pile body and fin, and close up and have certain taper in described pile body lower end, and described fin is stretched out by the perisporium of pile body.
2. a kind of composite pile as claimed in claim 1 is characterized in that: described fin comprises hollow section and flank, and described flank is stretched out by the perisporium of hollow section, and described hollow section is placed on the described pile body.
3. a kind of composite pile as claimed in claim 1 is characterized in that: described pile body and fin are formed in one.
4. a kind of composite pile as claimed in claim 2 is characterized in that: described flank is parallel with the axis of described hollow section.
5. a kind of composite pile as claimed in claim 2 is characterized in that: described flank is symmetrically distributed about the axis of described hollow section.
6. a kind of composite pile as claimed in claim 2 is characterized in that: described flank is fan-shaped or quadrangle.
7. a kind of composite pile as claimed in claim 1, it is characterized in that: have the first waist straight hole on the described pile body, have through hole on the described hollow section, run through the first waist straight hole on the described pile body and the through hole on the hollow section, described fin is assemblied on the described pile body by installed part.
8. a kind of composite pile as claimed in claim 7, it is characterized in that: the described first waist straight hole is a prolate shape, after described fin was assemblied in described pile body by installed part, described installed part can slide up and down in the described first waist straight hole, and drove described fin and slide up and down on described pile body.
9. a kind of composite pile as claimed in claim 1 is characterized in that: be raised with barb on the described flank, described barb upper end height of projection is higher than the lower end height of projection, to increase the uplift resistance of pile body.
10. the combination of a kind of composite pile as claimed in claim 1, it is characterized in that: it comprises connector and a plurality of composite pile, offer the second waist straight hole on described composite pile pile body or the fin, described connector inserts the second waist straight hole in the different composite stake respectively, with a plurality of composite pile combine and assemble together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206485605U CN201962670U (en) | 2010-12-07 | 2010-12-07 | Composite pile and combination thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206485605U CN201962670U (en) | 2010-12-07 | 2010-12-07 | Composite pile and combination thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201962670U true CN201962670U (en) | 2011-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206485605U Expired - Fee Related CN201962670U (en) | 2010-12-07 | 2010-12-07 | Composite pile and combination thereof |
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| CN (1) | CN201962670U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233462A (en) * | 2013-05-07 | 2013-08-07 | 山东同圆设计集团有限公司 | Assembling external restraining precast pile with stiffening ribs and capable of preventing bending and shear damage |
| CN104790427A (en) * | 2015-04-24 | 2015-07-22 | 中利腾晖光伏科技有限公司 | Photovoltaic array short pile foundation and forming technology thereof |
| CN105804071A (en) * | 2016-03-18 | 2016-07-27 | 苏州亚思科精密数控有限公司 | Self-tapping foundation pile and method for establishing machine tool foundation on soft soil |
| CN106638653A (en) * | 2016-10-21 | 2017-05-10 | 钟立朋 | Simple pile foundation structure |
| CN113062316A (en) * | 2021-04-19 | 2021-07-02 | 武汉市金港岩土工程有限公司 | High-strength anti-pulling anchor rod and mounting method thereof |
-
2010
- 2010-12-07 CN CN2010206485605U patent/CN201962670U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233462A (en) * | 2013-05-07 | 2013-08-07 | 山东同圆设计集团有限公司 | Assembling external restraining precast pile with stiffening ribs and capable of preventing bending and shear damage |
| CN103233462B (en) * | 2013-05-07 | 2016-05-25 | 山东同圆设计集团有限公司 | A kind of prefabricated pile with the anti-bending failure by shear of the outer constraint of ribbed stiffener assembled |
| CN104790427A (en) * | 2015-04-24 | 2015-07-22 | 中利腾晖光伏科技有限公司 | Photovoltaic array short pile foundation and forming technology thereof |
| CN105804071A (en) * | 2016-03-18 | 2016-07-27 | 苏州亚思科精密数控有限公司 | Self-tapping foundation pile and method for establishing machine tool foundation on soft soil |
| CN105804071B (en) * | 2016-03-18 | 2018-02-06 | 湖南中天建设集团股份有限公司 | A kind of foundation driller and method that can establish lathe ground on the ground in weak soil |
| CN106638653A (en) * | 2016-10-21 | 2017-05-10 | 钟立朋 | Simple pile foundation structure |
| CN113062316A (en) * | 2021-04-19 | 2021-07-02 | 武汉市金港岩土工程有限公司 | High-strength anti-pulling anchor rod and mounting method thereof |
| CN113062316B (en) * | 2021-04-19 | 2022-04-26 | 武汉市金港岩土工程有限公司 | High-strength anti-pulling anchor rod and mounting method thereof |
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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: 20110907 Termination date: 20171207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |