CN202954373U - Pile foundation structure of photovoltaic power station - Google Patents

Pile foundation structure of photovoltaic power station Download PDF

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Publication number
CN202954373U
CN202954373U CN 201220555016 CN201220555016U CN202954373U CN 202954373 U CN202954373 U CN 202954373U CN 201220555016 CN201220555016 CN 201220555016 CN 201220555016 U CN201220555016 U CN 201220555016U CN 202954373 U CN202954373 U CN 202954373U
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CN
China
Prior art keywords
piling bar
foundation structure
pile
hole
pile foundation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 201220555016
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Chinese (zh)
Inventor
余荣彪
赵小顺
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JIANGSU HUAYUAN NEW ENERGY SCIENCE & TECHNOLOGY Co Ltd
Original Assignee
JIANGSU HUAYUAN NEW ENERGY SCIENCE & TECHNOLOGY Co Ltd
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Priority to CN 201220555016 priority Critical patent/CN202954373U/en
Application granted granted Critical
Publication of CN202954373U publication Critical patent/CN202954373U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model provides a pile foundation structure of a photovoltaic power station and is applicable to construction of the photovoltaic power stations in Gobi and desolate beach areas with complicated geologic structure. The pile foundation structure is characterized by comprising a precast steel pile and a pile hole perpendicular to a ground surface, wherein the precast steel pile is mounted in the pile hole and inserted into a soil layer at the bottom of the pile hole by exposing the top out of the ground, a concrete layer is cast between the wall of the pile hole and the precast steel pile, and a compact plain layer is backfilled above the concrete layer.

Description

A kind of pile foundation structure of photovoltaic plant
Technical field
The utility model relates to the photovoltaic plant technical field of construction, is specially a kind of pile foundation structure of photovoltaic plant.
Background technology
The basis of general photovoltaic plant mostly is independently box foundation, its construction is excavation pit at first, then in foundation ditch, foundation forms is assembled into to box-shaped, concreting in the box-shaped template again, after concrete curing expires, stripping gets final product, its construction technology is simple, it is more single that but it is only applicable to geologic structure, the area that soil property is relatively soft, for the NORTHWEST CHINA hinterland, Gobi desert barren beach area particularly, due to such regional geology complex structure, soil property is hard, and stratum contains a large amount of rubbles, therefore its difficulty of construction is large, efficiency is low, cost is high, in addition, in such area, carry out large-scale excavation of foundation pit, understand the heavy damage surface vegetation, thereby affect the ecological environment of this area's fragility.
Summary of the invention
For the problems referred to above, the utility model provides a kind of pile foundation structure of photovoltaic plant, and it is applicable to the construction of the photovoltaic plant in the barren beach area, Gobi desert that geologic structure is more complicated, and it is simple in structure, easy construction, and cost is low, survivable ecological environment.
A kind of pile foundation structure of photovoltaic plant, it is characterized in that: it comprises prefabricated piling bar and the stake hole vertical with Earth surface plane, described prefabricated piling bar is installed in described stake hole and described prefabricated piling bar inserts in described the soil layer bottom hole, elevate above the soil in top, built layer of concrete between the hole wall in described stake hole and described prefabricated piling bar, the top backfill of described layer of concrete has closely knit plain soil layer.
It is further characterized in that:
The buried depth H of described prefabricated piling bar ' be 1.3m~1.4m; The length L of described prefabricated piling bar is greater than at least 20cm of described stake hole depth H; Described prefabricated piling bar upper end is equipped with the support mounting flange; Described pile body surface has annular resistance to plucking tongue and groove.
The utility model photovoltaic plant pile foundation structure, its prefabricated piling bar inserts the soil layer of bottom, stake hole through the stake hole vertical with the ground facial plane, its bottom, the top concreting is also with plain earthen backfill compacting, photovoltaic power plant bracket directly with the support mounting flange connection at prefabricated piling bar top, it is simple in structure, and supporting is stable; The pile body of prefabricated piling bar has annular resistance to plucking tongue and groove, can more effectively guarantee stable support; Its construction does not need to carry out large-area excavation of foundation pit, only by large excavator, configure drilling rod and drill bit carries out vertical drilling to ground, again prefabricated piling bar is inserted to soil layer by this vertical drilling, by concreting and the native closely knit backfill of element, prefabricated piling bar is fixed in vertical drilling and guarantees that it is reliable and stable again, its construction is convenient, efficiency of construction is high, and can not cause large tracts of land to damage to surface vegetation, effectively guarantee environment.
The accompanying drawing explanation
The pile foundation structure schematic diagram that Fig. 1 is a kind of photovoltaic plant of the utility model.
The specific embodiment
See Fig. 1, the utility model structure comprises prefabricated piling bar 2 and the stake hole 1 vertical with Earth surface plane, prefabricated piling bar 2 is installed in a hole 1 and prefabricated piling bar 2 inserts in a soil layer of bottom, hole, elevate above the soil in top, built layer of concrete 3 between the hole wall in stake hole 2 and prefabricated piling bar, layer of concrete 3 top backfills have closely knit plain soil layer 4.The buried depth H of prefabricated piling bar 2 ' be 1.3m~1.4m; The length L of prefabricated piling bar 2 is greater than at least 20cm of a hole 1 depth H; Prefabricated piling bar 2 upper ends are equipped with support mounting flange 5, and prefabricated piling bar 2 pile body surfaces have annular resistance to plucking tongue and groove 6.
Below specifically describe the work progress of the utility model pile foundation structure: at first adopt large excavator to drill through a hole, drilling rod and drill bit are installed on large excavator, need held stationary when excavator is in place, not run-off the straight and displacement, and keep drilling rod perpendicular to the ground, stake center, the hole deviation wherein drilled through should meet be not more than ± 40mm of central pile, be not more than ± 30mm of skirt piles, stake hole depth H allowable variation+100mm, vertical degree of the peg hole allowable variation≤0.01L, sediment thickness≤50mm at the bottom of stake hole, hole, water filling in Xiang Zhuan hole, boring limit, limit when boring, so that the silt particle mud in hole is guaranteed pile hole forming admittedly, then by prefabricated piling bar through being inserted into the soil layer below hole in the stake hole, build the C20 layer of concrete again between stake hole wall and prefabricated piling bar, vibrate with vibrator in concreting limit, limit, finally on layer of concrete, the backfill element is native.

Claims (4)

1. the pile foundation structure of a photovoltaic plant, it is characterized in that: it comprises prefabricated piling bar and the stake hole vertical with Earth surface plane, described prefabricated piling bar is installed in described stake hole and described prefabricated piling bar inserts in described the soil layer bottom hole, elevate above the soil in top, built layer of concrete between the hole wall in described stake hole and described prefabricated piling bar, the top backfill of described layer of concrete has closely knit plain soil layer.
2. the pile foundation structure of a kind of photovoltaic plant according to claim 1, is characterized in that: the buried depth H of described prefabricated piling bar ' be 1.3m~1.4m.
3. the pile foundation structure of a kind of photovoltaic plant according to claim 2 is characterized in that: the length L of described prefabricated piling bar is greater than at least 20cm of described stake hole depth H; Described prefabricated piling bar upper end is equipped with the support mounting flange.
4. the pile foundation structure of a kind of photovoltaic plant according to claim 3, it is characterized in that: described pile body surface has annular resistance to plucking tongue and groove.
CN 201220555016 2012-10-27 2012-10-27 Pile foundation structure of photovoltaic power station Expired - Lifetime CN202954373U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220555016 CN202954373U (en) 2012-10-27 2012-10-27 Pile foundation structure of photovoltaic power station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220555016 CN202954373U (en) 2012-10-27 2012-10-27 Pile foundation structure of photovoltaic power station

Publications (1)

Publication Number Publication Date
CN202954373U true CN202954373U (en) 2013-05-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220555016 Expired - Lifetime CN202954373U (en) 2012-10-27 2012-10-27 Pile foundation structure of photovoltaic power station

Country Status (1)

Country Link
CN (1) CN202954373U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102953392A (en) * 2012-10-27 2013-03-06 江苏华源新能源科技有限公司 Pile foundation structure of photovoltaic power station and construction process of pile foundation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102953392A (en) * 2012-10-27 2013-03-06 江苏华源新能源科技有限公司 Pile foundation structure of photovoltaic power station and construction process of pile foundation
CN102953392B (en) * 2012-10-27 2015-12-02 江苏华源新能源科技有限公司 A kind of pile foundation structure of photovoltaic plant and pile foundation construction technique

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