CN102787596B - Spiral pile - Google Patents
Spiral pile Download PDFInfo
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- CN102787596B CN102787596B CN201210237855.7A CN201210237855A CN102787596B CN 102787596 B CN102787596 B CN 102787596B CN 201210237855 A CN201210237855 A CN 201210237855A CN 102787596 B CN102787596 B CN 102787596B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention relates to a spiral pile, which comprises a pile body, a first blade and a second blade, wherein the first blade and the second blade are arranged on the pile body and respectively rotate around the pile body.
Description
Technical field
The present invention relates to a kind of pile foundation structure, particularly a kind of screw pile.
Background technology
Stake is the common structural element of building field.Divide by material of body of a pile, stake generally can be divided into piling bar, concrete pile and composite material pile, and such as concrete pile is exactly the column of concrete or reinforced concrete structure.Stake is goed deep into stratum and is used to provide vertical and horizontal direction support.No matter be any stake, the conventional construction technique under stake in depth can be taked the methods such as pore-creating cast-in-situ, hammering or static pressure.Such as, but when the weight needing the object supported not is very large, solar panel or Sign Board, above method all seems too loaded down with trivial details, high cost, and very easily causes the destruction of vegetation and the pollution of environment.
Screw pile be mode by screwing in depth under pile element, and the material of pile body is all metal.Although screw pile has occurred for many years, but its range of application is always very limited.Trace it to its cause and mainly contain 2 aspects.First, screw pile blade shape, size, position are all relevant with difficulty or ease of constructing with the supporting capacity of screw pile, and the screw pile selecting suitable construction is all a difficult problem all the time.Secondly, owing to not carrying out the anticorrosive work such as dash scrubbing, screw pile is easily subject to the impact of surrounding enviroment, and adaptive capacity is poor.
Summary of the invention
For the technical problem existed in prior art, according to an aspect of the present invention, propose a kind of screw pile, comprising: pile body, the first blade on described pile body; And the second blade on described pile body; Wherein, each in described first blade and described second blade rotates around described pile body.
According to another aspect of the present invention, propose a kind of solar panels braced structures, comprising: multiple screw pile as above; And supporting structure, it installs support solar plate on described multiple screw pile.
According to another aspect of the present invention, propose a kind of solar power plant, comprising: solar panels; And solar panels braced structures as above, support described solar panels.
According to another aspect of the present invention, propose a kind of solar power station, comprising: multiple solar panels; And solar panels braced structures as above, support described multiple solar panels.
Accompanying drawing explanation
Below, will be described in more detail the preferred embodiment of the present invention by reference to the accompanying drawings, wherein:
Fig. 1 is the structural representation of screw pile according to an embodiment of the invention;
Fig. 2 is the structural representation of a kind of screw pile of the prior art;
Fig. 3 is the contrast schematic diagram of the screw pile supporting capacity of twayblade screw pile and continuous blade;
Fig. 4 is according to one embodiment of present invention, the ratio between the distance c between screw pile two adjacent blades and the diameter D of screw pile blade and the relation schematic diagram of bearing capacity;
Fig. 5 is according to one embodiment of present invention, the ratio between the distance c between screw pile two adjacent blades and the diameter D of screw pile blade and the relation schematic diagram of bearing capacity;
Fig. 6 is according to one embodiment of present invention, the relation schematic diagram between screw pile blade diameter and anti-pulling capacity;
Fig. 7 is the result schematic diagram of screw pile in accordance with another embodiment of the present invention;
Fig. 8 is the structural representation of screw pile according to another embodiment of the invention;
Fig. 9 a and Fig. 9 b is the structural representation of the leading section of screw pile according to an embodiment of the invention;
Figure 10 is according to one embodiment of present invention, screw pile is screwed in the schematic diagram of underground;
Figure 11 is the schematic diagram of solar panels braced structures according to an embodiment of the invention;
Figure 12 is the structural representation of the first connector according to an embodiment of the invention; And
Figure 13 is the structural representation of the second connector according to an embodiment of the invention.
Detailed description of the invention
Fig. 1 is the structural representation of screw pile according to an embodiment of the invention.See Fig. 1, screw pile 100 of the present invention comprises pile body 101 and leading section 102.On pile body 101, interval arranges helical blade 103 and 104.Pile body 101 can be solid barred body, also can be hollow body.Cross section also can in non-circular, the such as shape such as rectangle or hexagon.Leading section 102 is tapered or tilt, and is arranged on the front end of pile body 101.Leading section 102 both can be installed on pile body 101, also can be integrally formed with pile body 101.
According to one embodiment of present invention, helical blade 103 and 104 is being uniform along the change on the direction of pile body.Specifically, helical blade comprises a middle sampan line, its implication be this line on described blade, and perpendicular to the surface of pile body.Like this, the change of middle sampan line in the vertical direction, more specifically, the change of the intersection point in the vertical direction of middle sampan line and pile body surface reflects the change of helical blade in the vertical direction.In the present embodiment, the change of middle sampan line in the vertical direction is uniform, or perhaps at the uniform velocity.Such screw pile has best mechanical structure and screws ability.
According to one embodiment of present invention, pile body 101 comprises first paragraph and second segment, and wherein first paragraph is different from second segment.Such as, pile body 101 epimere is cylindrical stake, and hypomere is barrette; Or epimere has the diameter larger than hypomere.This is mainly in order to adapt to some ways that different geological conditionss is taked.For some specific environment, there is very outstanding effect.
According to one embodiment of present invention, leading section 102 is optional parts.That is, in some cases, screw pile 100 can not have leading section 102.The effect of leading section 102 is that the profile auxiliary screw stake utilizing it to tilt is rotated into underground.Another situation is, when pile body 101 is tubular structures, during construction from the body of pile body 101 insert one tapered or tilt rotary head, so also need not leading section 102 be set on pile body.
Helical blade 103 and 104 can directly be welded on pile body 101, also can by cracking and being set on pile body 101 on pile body 101.According to one embodiment of present invention, helical blade 103 and 104 and pile body 101 integrally formed.
The part that the pile body 101 of screw pile 100 closes on stake top is also provided with a perforated portion 110.The hole that perforated portion 110 comprises a jut and is arranged on this jut.It should be noted that and also can be provided with identical perforated portion at the opposite side of the pile body with perforated portion 110 symmetry.Perforated portion 110 is used for being connected with the screwing device driving screw pile to rotate.
On the pile body 101 of screw pile 100, the top of perforated portion 110 is also provided with adjusting hole 120.According to one embodiment of present invention, pile body 101 is provided with altogether the adjusting hole at 120 °, three intervals.Adjusting hole can receive adjustment bolt.Screw pile needs to be connected with the braced structures on it.Braced structures pillar extend into after in screw pile, can be adjusted the position of pillar by adjustment through the adjustment bolt of adjusting hole, ensures that the pillar be installed on screw pile is consistent after adjustment, to facilitate other parts of further installation braced structures.
According to one embodiment of present invention, braced structures pillar is being installed to screw pile and by after fixing through the adjustment bolt of adjusting hole, is turning etc. further by the hole electricity consumption on perforated portion 101 and turn null device and punch equally on pillar.Then, by screw pile and pillar being fixed further through the bolt in the hole that the hole on perforated portion 101 and pillar are got.It may be noted that the hole on the perforated portion 101 that this method make use of when screw pile being screwed into underground, simple and convenient, and also firm in structure.
As mentioned in the background, a technical barrier in this area be exactly how to customize screw pile structure to reach required bearing capacity, and can conveniently to install.A lot of parameters of screw pile can have an impact to this.Such as: stake is long, the opening of the diameter of pile body, leaf blade size, blade (pitch) etc.The length of blade also can be multiple, and as whole pile body all has screw thread, or part pile body has screw thread, or be only single track screw thread.Blade itself also can have multiple change, as single fin helical blade, has two fin helical blades of two parallel blades, even three fin helical blades.Such as, if blade diameter selection is larger, pitch is also smaller, and the bearing capacity of screw pile is better.But this both added cost, also difficulty was increased when screw pile being screwed into underground.Without any about the content how customizing screw pile structure in prior art.In actual applications, those skilled in the art select according to the experience of oneself, are then finally determined by the test pile experiment of reality.This both expended time in, and result is also only meet the demands, and is often high expensive.
The inventor of this case finds through long-term observation and test, and for the bearing capacity of screw pile, the length of screw thread does not have too much influence.Fig. 2 is the structural representation of a kind of screw pile of the prior art.As shown in Figure 2, this screw pile comprises pile body 201, leading section 202 and endless spiral 203.The under ground portion of whole or most of screw pile is all provided with blade 203(and the screw thread of continuous rotation).
With regard to the general understanding that this area is current, the bearing capacity of the screw pile shown in Fig. 2 will be better than the screw pile shown in Fig. 1 greatly.And this is a kind of prejudice of mistake in fact.Screw pile shown in Fig. 1 and Fig. 2 is more or less the same in bearing capacity.In some cases, the bearing capacity of the screw pile shown in Fig. 1 is even better than the screw pile shown in Fig. 2.Fig. 3 is that the screw pile supporting capacity of twayblade screw pile and continuous blade contrasts schematic diagram.Wherein, each blade in twayblade is single track helical blade, and its blade only rotates a circle around pile body.As shown in the figure, identical at blade diameter D, when the length L of stake is also identical, the supporting capacity of twayblade screw pile is better than the screw pile of continuous blade.But processing maintenance difficulties therebetween and cost cannot be mentioned in the same breath.Therefore, with regard to practical application, the screw pile shown in Fig. 1 is more economic and practical.This is significantly find for this area.
For as shown in Figure 1 screw pile for, be single track helical blade at each blade, and the change of helical blade in the vertical direction is also under uniform prerequisite, the structural parameters how optimizing screw pile are also still difficult problems.As shown in Figure 1, at least following structural parameters may have an impact to the performance of screw pile:
A: the length on screw pile most blade distance stake top;
B: the length of screw pile most lower blade distance pile top;
C: the distance between screw pile two adjacent blades;
D: the diameter of screw pile pile body;
D: the diameter of screw pile blade;
L: stake is long; And
T: the distance of blade upper shed in the vertical direction, i.e. pitch.
In these parameters above, stake is long is an important parameter, and it directly determines the degree of depth that stake screws in underground, also determines the indexs such as the deadweight of stake and cost to a great extent.
When the length of stake is certain, the optimization of other parameters is more difficult.In prior art without any can be for reference content.The inventor of this case finds, the ratio between the distance c between screw pile two adjacent blades and the diameter D of screw pile blade, the ratio c/D namely between blade pitgh and blade, plays a part very crucial to the vertical bearing capacity aspect of screw pile.
Fig. 4 is according to one embodiment of present invention, the ratio between the distance c between screw pile two adjacent blades and the diameter D of screw pile blade and the relation schematic diagram of bearing capacity.In the diagram, the ratio between the blade pitgh of curve 1-6 and blade diameter is respectively 1.02,2.03,3.05,4.07 and 6.10; Stake appearance is same and the diameter D of blade is also 236 millimeters (mm).As can be seen from the figure, when c/D is between 2-6, load is best.Preferably, when c/D is between 3-5, the amplitude that load increases is better than the situation of expection far away.
Fig. 5 is according to one embodiment of present invention, when the diameter D of different screw pile blade, and the ratio between the distance c between screw pile two adjacent blades and the diameter D of screw pile blade and the relation schematic diagram of bearing capacity.In Figure 5, the diameter D that black circle represents screw pile blade is the screw pile of 236mm, and the diameter D that hollow square represents screw pile blade is the screw pile of 176mm.Can find out from Fig. 5, when the ratio c/D between blade pitgh and blade is 2-6, the bearing capacity of screw pile after normalization, all 0.7, namely more than 70%.When the ratio of blade pitgh and blade diameter excessive or too small time, all can reduce the bearing capacity of screw pile.Particularly, when the ratio c/D particularly between blade pitgh and blade is 3-5, obviously there is situation about significantly promoting in the bearing capacity of screw pile.The load-carrying properties of screw pile are optimum.Fig. 4 and Fig. 5 together illustrates the important of ratio between blade pitgh and blade.
In order to further illustrate above-mentioned conclusion, reference can be carried out with Fig. 6.Fig. 6 is according to one embodiment of present invention, the relation schematic diagram between screw pile blade diameter and anti-pulling capacity.As can be seen from Figure 6, when other conditions are identical, along with the increase of blade diameter, the anti-pulling capacity of screw pile progressively promotes.But the increase of screw pile blade diameter is by the cost of extreme influence screw pile; Meanwhile, the ability being rotated into ground of screw pile is also affected.After exceeding certain limit, blade is larger, and its energy being rotated into the required cost in ground is more, screw pile is screwed in underground more difficult.Therefore, bearing capacity can not be improved simply by the diameter increasing blade.This also further illustrates the importance of Fig. 4 and Fig. 5 conclusion.Do not increasing the situation of blade diameter, by the ratio between adjustment blade pitgh and blade, the supporting capacity of screw pile can promoted equally.
Another the important parameter affecting screw pile performance is the distance t of blade upper shed in the vertical direction, i.e. pitch.Even if for single track helical blade, it also can be seen as a kind of special pitch.Different from other parameters, pitch is design parameter scope, instead of ratio.That is, what affect this parameter of pitch only has geology soil regime, and independent of other parameters of stake.According to one embodiment of present invention, the scope of the pitch of blade is 50-250 millimeter (mm).Preferable range is 60-150 millimeter (mm).
Another parameter is the ratio D/d between blade diameter D and pile body diameter d.This parameter in fact directly determines the area that helical blade contacts with soil.Based on same reason, this area is not be the bigger the better.According to one embodiment of present invention, the scope of the ratio D/d between blade diameter and pile body diameter is 2-6, and preferable range is 3-5.
As for the length a on screw pile most blade distance stake top, according to one embodiment of present invention, this distance at least should be greater than 400 millimeters (mm), is preferably greater than 600-800 millimeter (mm).And the length b of screw pile most lower blade distance pile top, then different because the leading section of stake is different.According to one embodiment of present invention, the most lower blade of screw pile is arranged on pile body bottom, the bottommost before the diameter of namely stake starts to diminish.In some cases, most lower blade may be smaller, and its main contribution promotes to screw, and few to bearing capacity contribution.Now, the adjacent blades of most lower blade can separate certain distance with most lower blade.
Screw pile normally metal, as steel.According to one embodiment of present invention, screw pile adopts nonmetals to make.Nonmetals can reduce the use of steel, reduce costs.Especially, as mentioned in the background, owing to can not carry out the work such as dash blowdown in advance when using screw pile, screw pile is easy to the impact being subject to underground environment.Such as, when using screw pile in the particular surroundings such as salt-soda soil, the screw pile of metal is very easy to be corroded and affects the stability of stake.Therefore, screw pile also can adopt treated corrosion resistant metal or nonmetals to make.
The difficult problem adopting nonmetals is intensity and the toughness that will ensure screw pile.That is, the nonmetals adopted should have and physical property like metal species, such as, and engineering plastics.Engineering plastics comprise many types, such as ABS, nylon, PBT etc.But engineering plastics itself cannot directly be applied, modification must be carried out to it, strengthen its engineering properties and chemical property, to meet the embody rule of screw pile.
According to one embodiment of present invention, screw pile adopts and strengthens nylon composite making.This enhancing nylon composite comprises each component of following weight ratio:
Nylon, 50-80%; Glass fiber, 15%-50%; And flexibilizer, 0.5-5%.
Nylon can adopt nylon 6(PA6), nylon66 fiber (PA66), NYLON610 (PA610), the copolymer of nylon 6 and nylon66 fiber, or the copolymer of nylon 6 and 12.
Glass fiber can adopt alkali-free glass fibre.
Flexibilizer can adopt the olefin elastomer of all kinds of acid anhydrides or carboxylic acid graft or graft copolymer or ionomeric polymer.Preferred polyolefm maleic anhydride grafts, such as, the vinyl elastic body of maleic anhydride graft.
According to one embodiment of present invention, the ultraviolet (UV) resistant agent that nylon composite may further include 0.02-0.5% is strengthened.Ultraviolet (UV) resistant agent can adopt organic ultraviolet (UV) resistant agent, as polyester UV absorber, or inorganic ultraviolet (UV) resistant agent, as carbon black, titanium dioxide, zinc oxide, zinc barium photomask agent etc.
When applying screw pile as mentioned above under the environment of salt-soda soil, the alkali resistance of screw pile is also extremely important.According to one embodiment of present invention, the resistance to alkaline agent that nylon composite may further include 0.01-1% is strengthened.Resistance to alkaline agent specifically can adopt furans or have other compounds of furan nucleus.
According to one embodiment of present invention, the lubricating auxiliary agent that nylon composite may further include 0.01-1% is strengthened, to make the outward appearance of screw pile more smooth.
According to one embodiment of present invention, the antioxidant that nylon composite may further include 0.01-1% is strengthened, the such as antioxidant 1010 of Shanghai vapour Bagao bridge Chemical Co., Ltd..
Under the prerequisite of other performances not affecting screw pile, strengthen nylon composite and may further include the end-capping reagent of certain ratio, mould release, crystallization auxiliary, colorant and fire retardant.
Be below according to one embodiment of present invention, strengthen an instantiation of nylon composite, it comprises: each component of following weight ratio:
Nylon 6(PA6) 60-80%, preferred 65-75%;
Glass fiber, 20%-40%; Preferred 25-35%;
Flexibilizer, the vinyl elastic body of maleic anhydride graft, 0.5-2%, preferred 0.8-1.5%; Ultraviolet (UV) resistant agent, polyester UV absorber, 0.02-0.5%, preferred 0.05-0.2%; With resistance to alkaline agent, furans, 0.02-5%.
Below the performance comparison of this enhancing nylon composite:
| Steel | Generic engineering plastics | Strengthen nylon composite | |
| Hot strength (MPa) | 215 | 30～135 | 180～250 |
| Impact strength (MPa) | N/A | 30～100 | 130～190 |
| Bending strength (MPa) | 215 | 30～120 | 270～300 |
| Alkali resistance is evaluated | Perishable | Weak acid and alkali resistance | Strong acid-base resistance |
Can be found out by upper table, strengthen the performance of various aspects of performance and the steel of nylon composite close or exceeded the performance of steel.Can steel be replaced completely, become the material of processing screw pile.
Fig. 7 is the result schematic diagram of screw pile in accordance with another embodiment of the present invention.Similar with the screw pile shown in Fig. 1, screw pile 700 comprises pile body 701 and leading section 702.On pile body 701, interval arranges helical blade 703 and 704.
According to one embodiment of present invention, be also provided with flange 705 on the stake top of screw pile, to be used for and to screw part and be connected, and the parts that flange 705 also can be used for will supporting with screw pile are connected.
As shown in Figure 7, in order to strengthen the intensity of pile body 701, pile body 701 is provided with along the straight line reinforcing rib 710 in pile body direction and the rotation reinforcing rib 720 around pile body rotation.For the screw pile of metal, reinforcing rib is perhaps dispensable.But, for the screw pile of nonmetals, the intensity of the lifting screw pile that the mesh reinforcements that the setting of reinforcing rib, particularly straight line reinforcing rib and rotation reinforcing rib are formed can be very large.
Fig. 8 is the structural representation of screw pile according to another embodiment of the invention.Similar with the screw pile shown in Fig. 7, screw pile 800 comprises pile body 801 and leading section 802.On pile body 801, interval arranges helical blade 803 and 804.Pile body 801 is also provided with along the straight line reinforcing rib 810 in pile body direction and the rotation reinforcing rib 820 around pile body rotation.Screw pile 800 further comprises coupling part 805 on stake top.Although coupling part 805 is marked by independent, whole coupling part 805 can be integrally formed with the remainder of screw pile 800.
Coupling part 805 can wider than pile body 801.The upper surface of coupling part 805 can be processed into flange or other connecting elementss, to be connected with the parts screwing part or required support.Meanwhile, coupling part 805 further comprises the reinforcing band 806 of a transverse direction and the perforated portion 807 on it.The top of reinforcing band 806 also can arrange multiple adjusting hole 808.Thus, screw pile 800 can adapt to the multiple parts screwing part and required support, easy to use and follow-up installation.
Fig. 9 a and Fig. 9 b is the structural representation of the leading section of screw pile according to an embodiment of the invention.Leading section 900 is applied in any one screw pile shown in Fig. 1, Fig. 2, Fig. 7 and Fig. 8.Leading section 900 comprises a coupling part 901 and tip portion 902.Coupling part 901 comprises multiple strip projected parts 911-916 in stake.Multiple strip projected parts 911-916 is symmetrical set.Corresponding with the part that leading section 900 connects on pile body the multiple strip grooves corresponding with multiple strip projected parts of stake coupling part 901 are set.Multiple strip projected parts is suitable for being inserted in multiple strip groove, thus realizes the convenient of leading section and pile body and be connected.
Alternatively, stake coupling part 901 is arranged symmetrical through hole 921 and 922.Also corresponding through hole is provided with in the part connected in pile body and leading section 900, after dividing 900 to be connected to pile body to allow current end, can utilize and through the bolt of through hole corresponding on the through hole 921 and 922 of leading section and pile body or like, pile body and leading section be locked.
Alternatively, tip portion 902 is arranged symmetrical hole 931 and 932.Described hole 931 and 932 is convenient to lower turn of tip portion 902.
Figure 10 is according to one embodiment of present invention, screw pile is screwed in the schematic diagram of underground.As shown in the figure, small movable machinery 1001 has and screws part 1002.Screw part 1002 for screw pile 1003 is screwed in underground.According to an example of the present invention, screw part 1002 and comprise the rotating rod that is less than screw pile pile body internal diameter, it can be deep in screw pile 1003.This rotating rod has a through hole.Bolt can by the through hole on the through hole of the perforated portion on screw pile and rotating rod by screw pile with screw part and be connected.In some cases, the screw adjusted through adjusting hole can adjust the relative position of rotating rod and screw pile.According to another example of the present invention, screw part 1002 and comprise the rotary liner that an internal diameter is greater than screw pile external diameter, it can be enclosed within screw pile.By the through hole of the through hole on rotary liner and the perforated portion on screw pile, the two can be fixed equally.According to another example of the present invention, can realize by flange or other connectors the connection that screws between part 1002 and screw pile.
Small movable machinery 1001 drives screw pile by screwing part 1002 thus screw pile 1003 is screwed in underground.This method is simple and convenient, very constructability, and without the need to ground works, also can not vegetation destruction, highly promotes on a large scale.But the subject matter of restriction screw pile application is just the cognitive presence deviation of the public to the supporting capacity of screw pile, thus causes the high cost of application screw pile.Screw pile of the present invention then just in time can address these problems.By single track helical blade structure and specific screw pile parameter, the bearing capacity of the screw pile cost produced and safeguard that gets a promotion then declines greatly.
Below by way of the embody rule of a screw pile of the present invention, further illustrate technical scheme of the present invention.In the foundation construction of solar power station, traditional construction method needs to carry out a large amount of earthworks.And if adopt screw pile of the present invention, most earthwork all will no longer need.
Figure 11 is the schematic diagram of solar panels braced structures according to an embodiment of the invention.As shown in the figure, solar panels braced structures comprises: the supporting structure being arranged on multiple screw pile 1102-1108.Supporting structure comprises multiple crossbeam 1130-1136, and it is used for support solar plate 1101; Multiple cant beam 1120 and 1122, is used for supporting multiple crossbeam 1130-1136; Multiple first pillar 1112-1118, is connected between multiple screw pile 1102-1108 and cant beam 1120 and 1122; Multiple second pillar 1113 and 1117, is connected between the first pillar 1102 and 1106 and cant beam 1120 and 1122.A part for supporting structure is illustrate only in Figure 11.Supporting structure on screw pile can also comprise the 3rd pillar of lateral connection, is connected to (not shown) between the first pillar 1112-1118 and/or the second pillar 1113 and 1117, to form robust structure.On cant beam 1120 and 1122, crossbeam 1130-1136 is set.Solar panels 1101 are arranged on crossbeam 1130-1136.It should be noted that Figure 11 schematically show only a part for solar panels braced structures, whole braced structures can be expanded, to form the foundation structure of whole solar power station.
According to one embodiment of present invention, a kind of braced structures of motion tracking solar plate, it comprises a screw pile, and the first pillar that it is installed.Multiple second pillar, its one end is arranged on the first pillar, and the other end supports the bracket that cant beam and crossbeam are formed together with the first pillar.Solar panels are arranged on this bracket.Whole braced structures can rotate, to ensure solar panels all the time facing to the direction of the sun.
Pillar 1112 is installed on screw pile 1102.Due to the difference of various landform, geology and execution conditions, the screw pile being screwed into underground may not be consistent.This is unfavorable for the installation of braced structures.According to an example of the present invention, the external diameter of pillar 1112 is less than the internal diameter of screw pile 1102, therefore, can extend in screw pile 1102.Screw pile 1102 is provided with multiple adjusting hole.After pillar stretches into, pillar can be fixed to a suitable position by the multiple bolts through adjusting hole multiple on screw pile 1102.Connection between other pillar and screw pile also can adopt similar mode.In fact, adopt this connected mode, the adjusting range of pillar can be very large.This mounting means very is flexibly adopted to bring great convenience to the installation of whole support system.
According to one embodiment of present invention, after by the bolt through adjusting hole pillar being fixed to suitable position, can being turned by electricity and wait punch device, utilize on the through hole of the perforated portion on screw pile pillar therein and punch.Like this, pillar is just provided with a through hole.Screw pile and pillar can be fixed by the through hole on the hole of the perforated portion on screw pile and pillar by bolt further.If screw pile is arranged symmetrical perforated portion, bolt can pass screw pile again through after pillar, and then completes fixing.This extra fixed form strengthens the connection between screw pile and pillar greatly.And, due to the hole of perforated portion be connected with screwing device before make use of, achieve a hole multiplex.
According to another example of the present invention, the first pillar 1112 comprises the lining that an internal diameter is greater than screw pile external diameter, and it can be enclosed within screw pile 1102.By the through hole of the perforated portion on the through hole on rotary liner and screw pile 1102, the two can be fixed equally.According to another example of the present invention, fixing between the first pillar 1112 and screw pile 1102 can be realized by flange or other connectors.Similarly, fixing between other the first pillar and screw piles also can adopt similar mode.
As shown in figure 11, the first pillar 1112-1118 is connected to cant beam 1120 and 1122 by the first connector 1142-1148.Second pillar 1113 is connected 1154 and 1156 with 1117 one end by second and is connected on the first pillar 1112 and 1116, the other end also by the first connector 1152 and 1158 for cant beam 1120 and 1122 provides extra support.
In installing at the scene, due to many-sided reasons such as setting angle and soil conditions, may there is certain deviation in the position after screw pile installation.Therefore, the mounting system on screw pile also must can have a certain amount of adjustable range, to facilitate the installation of whole system.These adjustment be also reflected in the first connector 1142-1148,1152 and 1158 and second connector 1154 and 1156 controllability on.
Figure 12 is the structural representation of the first connector according to an embodiment of the invention.As shown in the figure, the first connector 1200 comprises the upper part 1201 for being connected with solar panels and the low portion 1202 for being connected with vertical pillar.Upper part 1201 comprises the vertical component 1204 and 1206 of a step part 1202 and both sides.Step part 1202 is provided with two elongated holes 1203 and 1205.The vertical component 1204 and 1205 of both sides is used for being connected with the corresponding part on solar panels.
Low portion 1211 comprises the vertical component 1214 and 1216 of a step part 1212 and both sides equally.Step part 1212 is provided with two elongated holes 1213 and 1215.The step part 1202 of upper part 1201 is corresponding with the step part 1212 of low portion 1211.Screw can be each passed through two elongated holes 1203 and 1213 and the upper part of the first connector and low portion is fixed up.Similarly, another screw also can through the fixing upper part of two elongated holes 1205 and 1215 and low portion.
Different from upper part, the vertical component 1214 and 1216 of the both sides of the low portion of the first connector is provided with corresponding hole 1217 and 1219.And the top of pillar also arranges a corresponding through hole.The low portion of the first connector and pillar through hole 1217 and 1219 on the through hole on pillar top and the vertical component 1214 and 1216 of the first connector low portion, can be fixed up by bolt.
It is specifically intended that the first connector shown in Figure 12 provide at least the adjusting range in 2 directions.First, first connector can rotate around through the bolt of through hole on its through hole and pillar; And second, first the elongated hole of connector upper and lower make the position of the two can relative misalignment, thus provide horizontal adjustment.
Figure 13 is the structural representation of the second connector according to an embodiment of the invention.As shown in the figure, and the connector 1154 and 1156 in reference Figure 11, second connector of the present embodiment comprises two parts, Part I 1302, and it is suitable for being sheathed on pillar; Part II 1312, it is adapted to be mounted within the end of pillar.Part I 1302 is provided with multiple adjusting hole 1303.Generally speaking, adjusting hole is more than 3 and equally spaced annular setting.Pillar sheathed with it for Part I 1302 can be fixed by the multiple screws through adjusting hole.Part II 1312 is provided with installing hole 1313.The top of pillar also arranges a corresponding through hole.Bolt can pass the through hole on pillar top and the through hole 1313 of connector Part II, the Part II of connector and the top of pillar is fixed up.Part I 1302 and Part II 1312 comprise extension 1304 and 1314 respectively.Two extensions 1304 are together with 1314 are rotatably connected to by axle 1330.
It is specifically intended that the connector shown in Figure 13 provide at least the adjustment degree in 2 directions.First is can rotate between the Part I of the second connector and Part II; And second is that the Part I of the second connector can through sheathed and be installed to any position of the first pillar.
All pillars, the first connector and the second connector can be metals, also can be nonmetallic.Nonmetals can alleviate the weight needing to support.When the weight of solar panels and support is all known, considers local weather and soil condition, just can calculate the maximum resistance to compression and anti-pulling capacity that possess needed for screw pile, thus select suitable screw pile.
According to this example of the present invention, the whole supporting structure of solar panels braced structures includes the first pillar, the second pillar, cant beam and crossbeam and the first connector and the second connector, and cooperatively interact between these parts the support achieved solar panels.Coordinate with screw pile of the present invention, can the construction of solar power station be realized fast and remove, time saving and energy saving and can not damage environment.Whole solar power station is convenient to construct, and firm and durable.
Above-described embodiment is used for illustrative purposes only, and be not limitation of the present invention, the those of ordinary skill of relevant technical field, without departing from the present invention, can also make a variety of changes and modification, therefore, all equivalent technical schemes also should belong to category disclosed by the invention.
Claims (43)
1. a screw pile, comprising:
Pile body,
The first blade on described pile body; And
The second blade on described pile body;
Wherein, each in described first blade and described second blade rotates around described pile body;
Each in wherein said first blade and described second blade is single track helical blade;
Ratio c/D wherein between blade pitgh c and blade diameter D is 2-6;
The pitch scope of its Leaf is 50-250 millimeter;
Ratio D/d wherein between blade diameter D and pile body diameter d is 2-6;
Wherein said first blade is blade;
Wherein said first blade pitch is at least greater than 800 millimeters from the length on stake top; And
Wherein, described second blade is lower blade, is arranged on described pile body bottom.
2. screw pile according to claim 1, each in wherein said first blade and described second blade is being uniform along the change on the direction of pile body.
3. screw pile according to claim 1, comprises further: the leading section be connected with pile body.
4. screw pile according to claim 1, wherein said pile body comprises first paragraph and second segment, and wherein said first paragraph is different from described second segment.
5. screw pile according to claim 1, comprises further: the perforated portion on pile body, the hole that described perforated portion comprises a jut and is arranged on this jut.
6. screw pile according to claim 1, comprises further: the adjusting hole on pile body.
7. screw pile according to claim 1, the ratio c/D wherein between blade pitgh c and blade diameter D is 3-5.
8. screw pile according to claim 1, the pitch scope of its Leaf is 60-150 millimeter.
9. screw pile according to claim 1, the ratio D/d wherein between blade diameter D and pile body diameter d is 3-5.
10. screw pile according to claim 1, its king-pile top is provided with flange.
11. screw piles according to claim 1-10, wherein screw pile adopts treated corrosion resistant metal to make.
12. screw piles according to claim 1-10, wherein screw pile adopts nonmetals to make.
13. screw piles according to claim 12, wherein screw pile adopts enhancing nylon composite to make.
14. screw piles according to claim 13, wherein said enhancing nylon composite comprises each component of following weight ratio:
Nylon, 50-80%; Glass fiber, 15%-50%; And flexibilizer, 0.5-5%.
15. screw piles according to claim 14, wherein strengthen the ultraviolet (UV) resistant agent that nylon composite comprises 0.02-0.5% further.
16. screw piles according to claim 14, wherein strengthen the resistance to alkaline agent that nylon composite comprises 0.01-1% further.
17. screw piles according to claim 14, strengthen the lubricating auxiliary agent that nylon composite comprises 0.01-1% further.
18. screw piles according to claim 14, strengthen the antioxidant that nylon composite comprises 0.01-1% further.
19. screw piles according to claim 14, strengthen nylon composite and comprise end-capping reagent, mould release, crystallization auxiliary, colorant and fire retardant further.
20. screw piles according to claim 13, wherein said enhancing nylon composite comprises each component of following weight ratio:
Nylon 6 (PA6) 60-80%;
Glass fiber, 20%-40%;
Flexibilizer, the vinyl elastic body of maleic anhydride graft, 0.5-2%; With
Ultraviolet (UV) resistant agent, polyester UV absorber, 0.02-0.5%.
21. screw piles according to claim 20, wherein said enhancing nylon composite comprises each component of following weight ratio:
Nylon 6 (PA6) 65-75%;
Glass fiber, 25-35%;
Flexibilizer, the vinyl elastic body 0.8-1.5% of maleic anhydride graft;
Ultraviolet (UV) resistant agent, polyester UV absorber, 0.05-0.2%; With
Resistance to alkaline agent, furans, 0.2-5%.
22. screw piles according to claim 12, wherein said pile body are provided with the straight line reinforcing rib along pile body direction and the rotation reinforcing rib around described pile body.
23. screw piles according to claim 12, comprise the coupling part on described pile body further, and described coupling part comprises reinforcing band, and perforated portion is arranged on described reinforcing band, and adjusting hole is arranged on the top of described reinforcing band.
24. screw piles according to claim 23, the upper surface of wherein said coupling part is flange.
25. screw piles according to claim 3, wherein said leading section comprises integrally formed stake coupling part and tip portion.
26. screw piles according to claim 25, wherein said stake coupling part comprises multiple strip projected parts, and on described pile body, correspondence arranges multiple strip groove.
27. screw piles according to claim 25, its king-pile coupling part arranges fixing hole, and described pile body is provided with corresponding through hole.
28. screw piles according to claim 25, wherein tip portion arrange through hole.
29. 1 kinds of solar panels braced structuress, comprising:
Multiple screw pile as described in claim 1-28; And
Supporting structure, it installs support solar plate on described multiple screw pile.
30. solar panels braced structuress according to claim 29, described supporting structure comprises:
Multiple crossbeam;
Multiple cant beam, supports described multiple crossbeam;
First pillar, it is connected between described screw pile and described cant beam; And
Second pillar, it is connected between described first pillar and described cant beam.
31. solar panels braced structuress according to claim 30, wherein said supporting structure comprises: the 3rd pillar, and it is connected between described first pillar and/or the second pillar.
32. solar panels braced structuress according to claim 30, wherein said first pillar or the second pillar are connected to described cant beam by the first connector.
33. solar panels braced structuress according to claim 32, wherein said first connector comprises upper part and low portion, and wherein said upper part and described low portion respectively comprise the vertical component of step part and both sides; Described upper part and described low portion are located mutually by respective step part, and described low portion is rotatably installed to described first pillar or the second pillar.
34. solar panels braced structuress according to claim 33, the described step part of wherein said upper part and described low portion are arranged respectively corresponding elongated hole.
35. solar panels braced structuress according to claim 33, the vertical component of the both sides of the described low portion of wherein said first connector arranges installing hole.
36. solar panels braced structuress according to claim 30, wherein said second pillar is connected with the first pillar by the second connector.
37. solar panels braced structuress according to claim 36, wherein said second connector comprises Part I, and it is suitable for being sheathed on pillar; And Part II, it is adapted to be mounted within the end of pillar; Described Part I can rotate relative to described Part II.
38. according to solar panels braced structures according to claim 37, and the described Part I of wherein said second connector is set on described first pillar; The described Part II of described second connector is installed to one end of the second pillar.
39. according to solar panels braced structures according to claim 37, and the described Part I of wherein said second connector is provided with multiple adjusting hole.
40. according to solar panels braced structures according to claim 37, and the described Part II of wherein said second connector is provided with installing hole.
41. according to solar panels braced structures according to claim 37, and the described Part I of wherein said second connector and Part II comprise extension respectively; Described two extensions are rotatably connected to together by axle.
42. 1 kinds of solar power plants, comprising:
Solar panels; And
Solar panels braced structures as described in claim 29-41, supports described solar panels.
43. 1 kinds of solar power stations, comprising:
Multiple solar panels; And
Solar panels braced structures as described in claim 29-41, supports described multiple solar panels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210237855.7A CN102787596B (en) | 2012-05-16 | 2012-07-09 | Spiral pile |
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| CN201210153232 | 2012-05-16 | ||
| CN201210153232.1 | 2012-05-16 | ||
| CN201210237855.7A CN102787596B (en) | 2012-05-16 | 2012-07-09 | Spiral pile |
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| CN102787596B true CN102787596B (en) | 2014-12-31 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2688735T3 (en) * | 2013-08-22 | 2018-11-06 | Goliathtech Inc. | Pile, pile head and associated connector |
| CN103572751A (en) * | 2013-11-11 | 2014-02-12 | 洪求耀 | Screw-in type steel pipe pile and forming technology of screw-in type steel pipe pile |
| CN104594809B (en) * | 2015-01-30 | 2017-03-22 | 刘淼 | Forward screwing impacting-expanding drill tool structure and full screw impacted-expanded pile forming construction method |
| US11299863B2 (en) | 2016-11-16 | 2022-04-12 | Goliathtech, Inc. | Support assembly for a building structure |
| US10487469B2 (en) | 2016-11-16 | 2019-11-26 | Goliathtech Inc. | Support assembly for a building structure |
| CN106759271A (en) * | 2016-11-29 | 2017-05-31 | 中国铁塔股份有限公司长春市分公司 | A kind of double helix self-rotary steel-pipe pile |
| CN107196076A (en) * | 2017-06-12 | 2017-09-22 | 武城县光明电力工程有限公司 | A kind of electric anti-theft grounding pile |
| US10982460B2 (en) | 2017-08-10 | 2021-04-20 | Goliathtech Inc. | Support apparatus for supporting a headstone |
| CN111455991B (en) * | 2020-04-20 | 2021-06-01 | 华东交通大学 | Assembled spiral pile foundation and construction method thereof |
| CN114960637B (en) * | 2022-05-20 | 2023-06-23 | 中国地质大学（武汉） | Spiral pile foundation with large-diameter anti-overturning spiral blades and construction method thereof |
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