CN212772314U

CN212772314U - Variable cross-section photovoltaic micropore bored concrete pile

Info

Publication number: CN212772314U
Application number: CN202021457099.5U
Authority: CN
Inventors: 方光俊; 范军; 周光友; 陈卫东
Original assignee: PowerChina Chongqing Engineering Corp Ltd
Current assignee: PowerChina Chongqing Engineering Corp Ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-03-23
Anticipated expiration: 2030-07-22

Abstract

The utility model provides a variable cross-section photovoltaic micropore bored concrete pile, including big section, reducing section, the subsection that top-down set up, big section, reducing section, subsection all include stud, spiral hoop, fixed ribbon, cement, the stud is for setting up vertically, is equipped with the spiral hoop that the spiral encircles outside the stud, connect through the fixed ribbon between spiral hoop and the stud, cement is poured to the spiral hoop outside; the part below the middle part of the large section is buried below the stratum, the diameter of the large section is larger than that of the small section, and the variable diameter section is a conical section with a large upper part and a small lower part. The utility model discloses a set up variable cross section structure to the device to strengthen the design to relevant part, make its demand that satisfies the field installation that can be better, reduce the use amount of material simultaneously.

Description

Variable cross-section photovoltaic micropore bored concrete pile

Technical Field

The utility model relates to a photovoltaic equipment field, in particular to variable cross section photovoltaic micropore bored concrete pile.

Background

The photovoltaic power generation project generally comprises two categories of ground photovoltaic and roof photovoltaic, wherein during erection of the ground photovoltaic, a support needs to be installed on a cast-in-place pile to ensure stability, the selected basic type is different according to different photovoltaic panel arrangement modes, wind loads, landforms and geological conditions, the underground part and the overground part of a pile foundation are the same in section when a conventional photovoltaic solution is designed, the section size mainly depends on the size and the geological condition of a bottom plate of the photovoltaic support, and a similar cylindrical structure with the same section is provided according to the Chinese patent with the application number of 201420523104.6. Because the photovoltaic pile foundation is not stressed greatly, the requirement on the size of the section of the underground part is not high, but is influenced by the size of the bottom plate of the photovoltaic support, the section of the pile foundation is often large to ensure that the bottom plate of the photovoltaic support is installed smoothly, so that the consumption of concrete is increased, the difficulty of drilling construction is increased, and resources are greatly wasted.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, the utility model provides a variable cross section photovoltaic micropore bored concrete pile through setting up the variable cross section structure to the design is strengthened to relevant part, makes the demand of satisfying the field installation that it can be better, reduces the use amount of material simultaneously.

The technical scheme of the utility model as follows:

a variable cross-section photovoltaic microporous cast-in-place pile comprises a large section, a diameter-changing section and small sections which are arranged from top to bottom, wherein the large section, the diameter-changing section and the small sections respectively comprise studs, spiral hoops, fixing ties and cement, the studs are vertically arranged, spiral hoops which are spirally wound are arranged on the outer sides of the studs, the spiral hoops are connected with the studs through the fixing ties, and the cement is poured to the outer sides of the spiral hoops; the part below the middle part of the large section is buried below the stratum, the diameter of the large section is larger than that of the small section, and the variable diameter section is a conical section with a large upper part and a small lower part.

Further, the big section still includes buried bolt and closed reinforcement in advance, buried bolt is the U-shaped structure in advance, and its the latter half is buried underground in cement, and the upper half exposes the cement top surface.

Furthermore, the length of the small section is at least 4 times of that of the large section, and the bottom of the small section is provided with a sealing steel bar.

Furthermore, the reducer section comprises an upper reinforcing steel ring and a lower reinforcing steel ring on the top, and a steel rod connecting the two reinforcing steel rings, wherein the diameters of the reinforcing steel rings and the steel rod are larger than those of the vertical bars and the spiral hoops.

Furthermore, the reinforcing rods are arranged between the upper reinforcing ring and the lower reinforcing ring of the variable-diameter section, the reinforcing rods are connected in an inclined mode, and the number of the reinforcing rods is at least 3.

Furthermore, the number of the closed reinforcing steel bars is 6.

Furthermore, the height of the large section is 350mm, the diameter of the large section is 300mm, the height of the diameter-variable section is 50mm, the height of the small section is 1500mm, and the diameter of the small section is 250 mm.

Further, the diameter of the spiral hoop and the closed steel bar is 6mm, the diameter of the stud is 10mm, the diameter of the reinforcing ring and the steel bar is 12mm, and the diameter of the reinforcing rod is 8 mm.

Further, the closed reinforcing bar at the top of the large section is flush with the top of the stud, and the closed reinforcing bar at the bottom of the small section is higher than the bottom of the stud.

Furthermore, the maximum outer diameter of the cement is 35mm larger than the outer diameter of the spiral hoop, the height of the upper part of the cement is 35-50mm higher than the top of the large section of the stud, and the depth of the lower part of the cement is 35-50mm deeper than the bottom of the small section of the stud.

The utility model has the advantages as follows:

the utility model discloses a set up the reducing section, under the condition that does not reduce ground part bearing capacity and underground part ability of grabbing, can effectively reduce underground part's installation diameter, and then reduce the stirrup quantity, reduce the cement quantity, reduce transportation weight and drilling construction volume, reduce construction cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a front cross-sectional view of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

fig. 3 is a front view of the reducer section.

In the figure:

1 stratum, 2 closed steel bars, 3 pre-embedded bolts, 4 fixing bands, 5 spiral hoops, 6 vertical bars, 7 cement, 8 support bars, 9 variable-diameter sections,

91 steel rods, 92 steel reinforcing rings and 93 reinforcing rods.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-3, a variable cross-section photovoltaic microporous cast-in-place pile comprises a large section, a variable diameter section 9 and a small section which are arranged from top to bottom, wherein the large section, the variable diameter section 9 and the small section respectively comprise a stud 6, a spiral hoop 5, a fixing ribbon 4 and cement 7, the stud 6 is vertically arranged, the spiral hoop 5 which is spirally surrounded is arranged on the outer side of the stud 6, the spiral hoop 5 and the stud 6 are connected through the fixing ribbon 4 (of course, welding connection can be adopted, but the strength is easy to break by welding, and is not as high as the strength after being bundled by the metal fixing ribbon), and the cement 7 is poured to the outer side of the spiral hoop 5; the part below the middle part of the large section is buried below a stratum 1, the diameter of the large section is larger than that of the small section, the diameter-changing section 9 is a conical section with a large upper part and a small lower part, the large section further comprises an embedded bolt 3 and a closed reinforcing steel bar 2, the embedded bolt 3 is of a U-shaped structure, the lower half part of the embedded bolt is buried in cement 7, and the upper half part of the embedded bolt is exposed out of the top surface of the cement 7, so that photovoltaic equipment can be conveniently connected and; the bottom of the small section is provided with a closed steel bar 2; the reducer section 9 comprises an upper reinforcing steel bar ring 92 and a lower reinforcing steel bar ring 92 on the top, and a steel rod 91 connecting the two reinforcing steel bar rings 92, wherein the diameters of the reinforcing steel bar rings 92 and the steel rod 91 are larger than those of the vertical bars 6 and the spiral hoops 5, so that the strength of the reducer section 9 is improved, a reinforcing rod 93 is arranged between the upper reinforcing steel bar ring 92 and the lower reinforcing steel bar ring 92, the reinforcing rods 93 are connected in an inclined mode, and 3 reinforcing rods 93 are arranged, so that the strength is further ensured. The closed reinforcing bar 2 at its top and the 6 tops parallel and level of grub bar in big section, the subsection, the closed reinforcing bar 2 of its bottom is higher than the 6 bottoms of grub bar to ensure the installation at top and the stability of bottom, under certain embodiment circumstances, can add the brace rod 8 of establishing circumference and arranging in the subregion of grub bar 6 (not shown in fig. 1, show in fig. 2), each layer of brace rod 8 is equipped with 6, can set up the multilayer.

The major segment height is 350mm, and the diameter is 300mm, and the high 50mm that is of reducer section 9, the subsection height is 1500mm, and the diameter is 250mm, spiral hoop 5 with the diameter of closed reinforcement 2 is 6mm, 6 diameters of upright muscle are 10mm, shown reinforcing bar circle 92 with the diameter of steel pole 91 is 12mm, the stiffener 93 diameter is 8 mm. The maximum outer diameter of the cement 7 is 35mm larger than the outer diameter of the spiral hoop 5, the height of the upper part of the cement 7 is 35-50mm higher than the top of the large section of the stud 6, and the depth of the lower part of the cement 7 is 35-50mm deeper than the bottom of the small section of the stud 6, so that the cement 7 can fully cover and protect the internal reinforcing steel bars.

The utility model discloses in the field installation, the step is as follows:

the implementation process of the variable cross-section photovoltaic microporous cast-in-place pile is as follows:

1. leveling the field: according to the original landform and landform, a loader or a backhoe is adopted to clean stone affecting drilling in a field.

2. And (3) paying off the pile position: and GPS positioning measurement lofting layout control is adopted according to the coordinates, and the requirements of photovoltaic power generation construction specification regulations are met.

3. Drilling: selecting machines according to geological conditions of a construction site, and extruding and forming holes by adopting a special digging machine installation die when the thickness of a soil layer is larger than or equal to the embedding depth of a pile foundation; when the soil layer thickness is less than the pile foundation embedding depth, a down-the-hole drill and a matched air compressor are adopted.

4. Manufacturing a mould: by using

The drainage corrugated pipe is used as a mould, the drainage corrugated pipe is blanked into 300mm sections, a port is longitudinally opened (so as to be convenient for demoulding), and the periphery of the pipe port is reinforced by an iron wire locking port. Placing the center line of the mould in the hole in alignment with the control line; and (5) a peripheral soil-piling and reinforcing mold.

5. Checking an elevation axis: and (5) checking each group of longitudinal and transverse axis stay wires.

6. Reaming and cleaning holes: and (5) checking the pile hole according to the elevation axis check line, and cleaning soil with insufficient hole depth or collapsed expanded hole. And (4) newly repairing, reaming and cleaning the pile holes with the deviations exceeding the standard.

7. Installing a die: placing and fixing the finished product mold in place according to the elevation axis longitudinal and transverse check lines; and coating a release agent in the mold.

8. And (3) steel bar installation: will the utility model discloses a structure is connected to make into off-the-shelf steel reinforcement cage on the pit, and the finished product steel reinforcement cage of making under the check good qualification hole, it is fixed to rectify to fill up the protective layer.

9. Installing the embedded bolts 3: inserting the embedded bolt into the reinforcement cage, and roughly checking the position by using the elevation axis longitudinal and transverse check lines.

10. Pouring concrete: and pouring cement 7 concrete to the top surface of the foundation, compacting by vibration, accurately positioning by utilizing elevation axis longitudinal and transverse check lines, and forming the variable-section photovoltaic micropore cast-in-place pile after pouring the cement 7.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and additions can be made without departing from the principle of the present invention, and these improvements and additions should also be regarded as the protection scope of the present invention.

Claims

1. The variable cross-section photovoltaic microporous cast-in-place pile is characterized by comprising a large section, a diameter-changing section and a small section which are arranged from top to bottom, wherein the large section, the diameter-changing section and the small section respectively comprise vertical ribs, spiral hoops, fixing ribbons and cement; the part below the middle part of the large section is buried below the stratum, the diameter of the large section is larger than that of the small section, and the variable diameter section is a conical section with a large upper part and a small lower part.

2. The variable cross-section photovoltaic microporous cast-in-place pile according to claim 1, characterized in that the large section further comprises an embedded bolt and a closed steel bar, wherein the embedded bolt is of a U-shaped structure, the lower half portion of the embedded bolt is embedded in cement, and the upper half portion of the embedded bolt is exposed out of the top surface of the cement.

3. The variable cross-section photovoltaic microporous cast-in-place pile according to claim 2, wherein the length of the small section is at least 4 times of that of the large section, and the bottom of the small section is provided with a closed steel bar.

4. The variable cross-section photovoltaic microporous cast-in-place pile according to claim 3, wherein the reducer section comprises two upper and lower reinforcing rings at the top, and a steel rod connecting the two reinforcing rings, and the diameters of the reinforcing rings and the steel rod are larger than those of the vertical bars and the spiral hoops.

5. The photovoltaic microporous cast-in-place pile with variable cross section as claimed in claim 4, wherein the reducer section has reinforcing rods between two reinforcing rings, the reinforcing rods are connected obliquely, and there are at least 3 reinforcing rods.

6. A variable cross-section photovoltaic microporous cast-in-place pile according to claim 5, characterized in that there are 6 said closed steel bars.

7. The variable cross-section photovoltaic microporous cast-in-place pile according to claim 6, wherein the large section is 350mm in height and 300mm in diameter, the reducer section is 50mm in height, and the small section is 1500mm in height and 250mm in diameter.

8. The variable cross-section photovoltaic microporous cast-in-place pile according to claim 7, wherein the diameter of the spiral hoop and the closed steel bar is 6mm, the diameter of the stud is 10mm, the diameter of the steel ring and the steel bar is 12mm, and the diameter of the reinforcing bar is 8 mm.

9. The variable cross-section photovoltaic microporous cast-in-place pile according to claim 8, wherein the closed steel bars at the top of the large section are flush with the tops of the studs, and the closed steel bars at the bottom of the small section are higher than the bottoms of the studs.

10. The variable cross-section photovoltaic microporous cast-in-place pile according to claim 9, wherein the maximum outer diameter of the cement is 35mm larger than the outer diameter of the spiral hoop, the height of the upper part is 35-50mm higher than the top of the large section of the stud, and the depth of the lower part is 35-50mm deeper than the bottom of the small section of the stud.