CN216339475U - Spiral steel pile capable of being driven into rock layer - Google Patents
Spiral steel pile capable of being driven into rock layer Download PDFInfo
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- CN216339475U CN216339475U CN202122537261.5U CN202122537261U CN216339475U CN 216339475 U CN216339475 U CN 216339475U CN 202122537261 U CN202122537261 U CN 202122537261U CN 216339475 U CN216339475 U CN 216339475U
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Abstract
The utility model discloses a spiral steel pile capable of being driven into a rock layer, which comprises a central steel shaft, wherein the upper end of the central steel shaft is fixedly provided with a connecting flange, the lower end of the central steel shaft is fixedly provided with a drill bit, the lower end of the central steel shaft is fixedly provided with a first spiral blade, the central steel shaft is fixedly provided with a second spiral blade, and the second spiral blade is positioned above the first spiral blade. The spiral steel pile can be driven into a strongly weathered rock stratum due to the fact that the drill bit is additionally arranged at the lower end of the spiral steel pile, the problem that the spiral pile with the existing structure cannot be driven into the rock stratum is solved, the applicability is wider, and the bearing performance is better because the blades enter the rock stratum and the rock stratum is used as a bearing layer of a pile foundation.
Description
Technical Field
The utility model relates to the technical field of spiral piles, in particular to a spiral steel pile capable of being driven into a rock stratum.
Background
The spiral pile is a tubular pile formed by welding spiral blades on the surface of a hot-forged metal pipe. The basic working principle of the spiral pile is equivalent to that of a wood screw, the spiral pile is screwed into the ground by a special pile driver, the traditional concrete foundation is replaced, and the top end of the spiral pile is connected with a load. After the pile is driven into the ground, the pile is not taken out, is directly used as a pile body, has the advantages of quick and convenient construction, greatly shortened construction period, environmental protection, convenient migration and recovery and the like, and is widely applied to a photovoltaic power generation foundation structure.
However, the existing screw pile structure is difficult to drive when meeting rock stratum soil quality such as strongly weathered rock and the like, and the application range of the screw pile is limited.
Disclosure of Invention
To the not enough of above-mentioned prior art, the technical problem that this patent application will solve provides a simple structure, convenient to use, and bearing performance is good, the wide spiral steel pile that can squeeze into the rock layer of application scope.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a can squeeze into spiral steel pile in rock layer, includes central steel axle, the upper end fixed mounting of center steel axle has flange, the lower extreme fixed mounting of center steel axle has the drill bit, the lower extreme fixed mounting of center steel axle has first helical blade, the epaxial fixed mounting of center steel has second helical blade, second helical blade is located first helical blade's top.
Specifically, the center steel shaft is hollow round steel, and the upper end of center steel shaft is provided with two through-holes that are used for connecting the pile frock.
Specifically, the drill bit is made of high-strength alloy steel.
Specifically, the drill bit is of a tooth-shaped structure.
Specifically, the size of the second helical blade is larger than that of the first helical blade.
Specifically, a waist-shaped hole mounting hole is formed in the connecting flange.
Specifically, a reinforcing rib is fixedly arranged between the top end of the central steel shaft and the connecting flange.
To sum up, this spiral steel pile that can squeeze into rock layer has following beneficial effect:
the spiral steel pile can be driven into a strongly weathered rock stratum due to the fact that the drill bit is additionally arranged at the lower end of the spiral steel pile, the problem that the spiral pile with the existing structure cannot be driven into the rock stratum is solved, the applicability is wider, and the bearing performance is better because the blades enter the rock stratum and the rock stratum is used as a bearing layer of a pile foundation.
Drawings
Fig. 1 is a schematic structural view of a spiral steel pile according to the present invention, which can be driven into a rock stratum.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings. In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "upper, lower" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
As shown in fig. 1, a spiral steel pile capable of being driven into a rock layer comprises a central steel shaft 3, a connecting flange 6 is fixedly mounted at the upper end of the central steel shaft, a drill bit 1 is fixedly mounted at the lower end of the central steel shaft, a first spiral blade 2 is fixedly mounted at the lower end of the central steel shaft, a second spiral blade 4 is fixedly mounted on the central steel shaft, and the second spiral blade is located above the first spiral blade.
The bottom of the central steel shaft is provided with a first helical blade, and a second helical blade is arranged at a certain distance away from the central steel shaft, wherein the diameter of the first helical blade is smaller, the resistance is smaller when the first helical blade enters a rock layer, the diameter of the second helical blade is larger, and the bearing capacity is higher.
Specifically, the center steel shaft is hollow round steel, and the upper end of center steel shaft is provided with two through-holes that are used for connecting the pile frock.
Specifically, the drill bit is made of high-strength alloy steel.
Specifically, the drill bit is of a tooth-shaped structure. The drill bit is in the screw pile bottom, is processed into the bottom of flute profile welding at central steel axle by high strength alloy steel, can break the stone under the big torsion effect of pile equipment, gets into the rock layer.
Specifically, the size of the second helical blade is larger than that of the first helical blade.
Specifically, the connecting flange is provided with a waist-shaped hole mounting hole, and the waist-shaped hole mounting hole can be connected with an equipment structure borne by the upper part and also can be used as a connecting interface with piling equipment.
Specifically, a reinforcing rib 5 is fixedly arranged between the top end of the central steel shaft and the connecting flange.
Finally, it should be noted that: various modifications and alterations of this invention may be made by those skilled in the art without departing from the spirit and scope of this invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (7)
1. The utility model provides a spiral steel pile that can squeeze into rock layer, a serial communication port, including central steel axle (3), the upper end fixed mounting of central steel axle (3) has flange (6), the lower extreme fixed mounting of central steel axle (3) has drill bit (1), the lower extreme fixed mounting of central steel axle (3) has first helical blade (2), fixed mounting has second helical blade (4) on central steel axle (3), second helical blade (4) are located the top of first helical blade (2).
2. The spiral steel pile capable of being driven into a rock stratum according to claim 1, wherein the central steel shaft (3) is hollow round steel, and two through holes for connecting a pile driving tool are formed in the upper end of the central steel shaft (3).
3. A screw steel pile drivable into a rock stratum according to claim 1, characterized in that said drill bit (1) is made of high-strength alloy steel.
4. A screw steel pile for driving into a rock formation according to claim 1, characterised in that the drill bit (1) is of toothed construction.
5. A screw steel pile drivable into a rock stratum according to claim 1, characterized in that the dimensions of said second helical blade (4) are greater than those of said first helical blade (2).
6. A screw steel pile for driving into rock strata as claimed in claim 1, wherein the connecting flange (6) is provided with a kidney-shaped hole mounting hole.
7. A screw steel pile for driving into rock strata as claimed in claim 1 wherein a reinforcing bar (5) is fixedly mounted between the top end of the central steel shaft (3) and the connecting flange (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122537261.5U CN216339475U (en) | 2021-10-21 | 2021-10-21 | Spiral steel pile capable of being driven into rock layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122537261.5U CN216339475U (en) | 2021-10-21 | 2021-10-21 | Spiral steel pile capable of being driven into rock layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216339475U true CN216339475U (en) | 2022-04-19 |
Family
ID=81179020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122537261.5U Active CN216339475U (en) | 2021-10-21 | 2021-10-21 | Spiral steel pile capable of being driven into rock layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216339475U (en) |
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2021
- 2021-10-21 CN CN202122537261.5U patent/CN216339475U/en active Active
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