CN219315796U - Single anchor foundation structure of spiral anchor - Google Patents
Single anchor foundation structure of spiral anchor Download PDFInfo
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- CN219315796U CN219315796U CN202222875051.1U CN202222875051U CN219315796U CN 219315796 U CN219315796 U CN 219315796U CN 202222875051 U CN202222875051 U CN 202222875051U CN 219315796 U CN219315796 U CN 219315796U
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Abstract
The application relates to power transmission engineering construction, in particular to a single-anchor foundation structure of a spiral anchor, which can solve the problem that in actual engineering, the power transmission tower structure takes a single spiral anchor as a stressed foundation, and under the condition of meeting the vertical load requirement, the capability of resisting external horizontal load is far from enough. The single anchor foundation includes: the anchor rod penetrates through the horizontal side force resisting component; the horizontal side force resisting component comprises a sleeve and a horizontal reinforcing piece, the diameter of the sleeve is larger than that of the anchor rod, and the anchor rod penetrates through the sleeve; the horizontal reinforcement comprises a plurality of reinforcement blocks which are circumferentially arranged on the outer wall of the sleeve, and the spacing angles among the reinforcement blocks are the same.
Description
Technical Field
The application relates to the technical field of power transmission engineering construction, in particular to a single-anchor foundation structure of a spiral anchor.
Background
Along with the rapid development of the transmission line in China, the pace of foundation construction is gradually increased, the pile foundation of the transmission tower is used as an important component in the transmission line engineering, and the construction cost, the material consumption and the construction period of the pile foundation are large in proportion to the whole transmission line engineering.
At present, a common straight hole reinforced concrete bored concrete pile foundation is generally adopted for a power transmission line pile foundation in China, the pile type pile mainly bears upper structural load by virtue of pile side frictional resistance, the pulling resistance and the compression resistance bearing capacity are relatively poor, the pile body diameter and the pile body length of the pile type pile foundation are required to be increased for meeting the pile foundation design requirements under the condition of large load, the whole engineering cost is increased, the spiral anchor foundation is required to be increased, the construction operation surface is small, the earthwork excavation amount is small and other environment-friendly requirements are met, and the novel method for solving the problems of unfavorable geological conditions, land characterization difficulty, construction period tension, environmental protection, cost overrun and the like is provided.
However, in practical engineering, the power transmission tower structure takes a single spiral anchor as a stressed base, and under the condition of meeting the vertical load requirement, the capability of resisting external horizontal load is far insufficient.
Disclosure of Invention
In order to solve the problem that in actual engineering, a power transmission tower structure takes a single spiral anchor as a stressed foundation, and under the condition of meeting the vertical load requirement, the capability of the power transmission tower structure for resisting external horizontal load is far insufficient, the application provides a spiral anchor single anchor foundation structure.
According to one aspect of embodiments of the present application, there is provided a screw anchor single anchor foundation structure, the single anchor foundation comprising: the anchor rod penetrates through the horizontal side force resisting component;
the horizontal side force resisting component comprises a sleeve and a horizontal reinforcing piece, the diameter of the sleeve is larger than that of the anchor rod, and the anchor rod penetrates through the sleeve;
the horizontal reinforcement comprises a plurality of reinforcement blocks which are circumferentially arranged on the outer wall of the sleeve, and the spacing angles among the reinforcement blocks are the same.
In some embodiments, the reinforcing block comprises two reinforcing plates, an end plate, a top cover plate, and a bottom cover plate;
one side of each reinforcing plate is fixedly connected with the outer wall of the sleeve, and the two reinforcing plates are identical in shape and size and are arranged in parallel;
the end plates are arranged on one sides of the two reinforcing plates, which are far away from the sleeve, and the two sides of the end plates are respectively fixedly connected with the two reinforcing plates, so that one sides of the two reinforcing plates, which are far away from the sleeve, are sealed;
the top cover plate and the bottom cover plate are respectively arranged at the top and the bottom of the two reinforcing plates, and the top cover plate and the bottom cover plate are fixedly connected with the top or the bottom of the two reinforcing plates so as to seal the top and the bottom of the two reinforcing plates.
In some embodiments, the sum of the lengths of the reinforcing plate, the top cover plate, and the bottom cover plate in the sleeve axial direction is equal to the axial length of the sleeve.
In some embodiments, the top cover plate and the bottom cover plate are each provided with a gradually increasing width from a direction approaching the end plate toward a direction approaching the sleeve.
In some embodiments, the reinforcing block further comprises a plurality of connection plates respectively disposed between the plurality of reinforcing blocks, connecting the top cover plate and the bottom cover plate of two adjacent reinforcing blocks.
In some embodiments, the reinforcing plate, the end plate, the top cover plate, the bottom cover plate, the connecting plate and the sleeve are all connected by welding.
In some embodiments, the anchor rod comprises: the bolt comprises a rod body, a plurality of spiral anchor discs and bolt holes;
the plurality of spiral anchor discs are distributed along the circumferential direction of the rod body, the distances among the plurality of spiral anchor discs are the same, and the spiral anchor discs are perpendicular to the rod body;
the bolt hole set up in the top of the body of rod.
The beneficial effects of this application: through setting up the stock, when the construction, at first be connected stock and construction machinery, carry out drilling construction with vertical mode again, this will reduce its construction degree of difficulty greatly in comparison with slope screw anchor basis, rethread sets up anti horizontal side force component, and be provided with the sleeve pipe, make anti horizontal side force component can combine together with the stock through the sleeve pipe with nested mode, with fixed anti horizontal side force component and stock, guaranteed that they can bear external load jointly, rethread sets up a plurality of reinforcing blocks, make anti horizontal side force component can resist external horizontal load, with this improvement screw anchor single anchor basis resistance external load's ability, and reduce the whole horizontal displacement of screw anchor single anchor basis, thereby improve the whole bearing capacity of screw anchor single anchor basis.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief description will be given below of the drawings that are needed in the embodiments or the prior art descriptions, it being obvious that the drawings in the following description are some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic diagram showing the overall structure of a single anchor foundation according to an embodiment of the present application;
FIG. 2 shows a schematic structural view of a horizontal side force resisting member in another embodiment of the present application;
fig. 3 shows a schematic structural view of another view of a horizontal side force resisting member according to another embodiment of the present application.
Description of the drawings: 100. a bolt; 110. a rod body; 120. a spiral anchor disc; 130. bolt holes; 200. a horizontal side force resisting member; 210. a reinforcing block; 211. a reinforcing plate; 212. an end plate; 213. a top cover plate; 214. a bottom cover plate; 215. a connecting plate; 220. a sleeve.
Detailed Description
For purposes of clarity, embodiments and advantages of the present application, the following description will make clear and complete the exemplary embodiments of the present application, with reference to the accompanying drawings in the exemplary embodiments of the present application, it being apparent that the exemplary embodiments described are only some, but not all, of the examples of the present application.
It should be noted that the brief description of the terms in the present application is only for convenience in understanding the embodiments described below, and is not intended to limit the embodiments of the present application. Unless otherwise indicated, these terms should be construed in their ordinary and customary meaning.
The terms "first," second, "" third and the like in the description and in the claims and in the above drawings are used for distinguishing between similar or similar objects or entities and not necessarily for describing a particular sequential or chronological order, unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances.
The terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements is not necessarily limited to all elements explicitly listed, but may include other elements not expressly listed or inherent to such product or apparatus.
Along with the rapid development of the transmission line in China, the pace of foundation construction is gradually increased, the pile foundation of the transmission tower is used as an important component in the transmission line engineering, and the construction cost, the material consumption and the construction period of the pile foundation are large in proportion to the whole transmission line engineering.
At present, a common straight hole reinforced concrete bored concrete pile foundation is generally adopted for a power transmission line pile foundation in China, the pile type pile mainly bears upper structural load by virtue of pile side frictional resistance, the pulling resistance and the compression resistance bearing capacity are relatively poor, the pile body diameter and the pile body length of the pile type pile foundation are required to be increased for meeting the pile foundation design requirements under the condition of large load, the whole engineering cost is increased, the spiral anchor foundation is required to be increased, the construction operation surface is small, the earthwork excavation amount is small and other environment-friendly requirements are met, and the novel method for solving the problems of unfavorable geological conditions, land characterization difficulty, construction period tension, environmental protection, cost overrun and the like is provided.
However, in practical engineering, the power transmission tower structure takes a single spiral anchor as a stressed base, and under the condition of meeting the vertical load requirement, the capability of resisting external horizontal load is far insufficient.
Thus, in view of the above problems, the present application proposes a screw anchor single anchor infrastructure.
The single anchor infrastructure provided herein is described below in connection with fig. 1-2.
Fig. 1 shows a schematic overall structure of a single anchor foundation according to an embodiment of the present application.
As shown in fig. 1, the anchor rod 100 and the horizontal side force resisting member 200 are arranged in the anchor rod 100 in a penetrating way.
The horizontal lateral force resisting member 200 comprises a sleeve 220 and a horizontal reinforcing member, the diameter of the sleeve 220 is larger than that of the anchor rod 100, and the anchor rod 100 is arranged in the sleeve 220 in a penetrating manner;
the horizontal reinforcement includes a plurality of reinforcement blocks 210, the plurality of reinforcement blocks 210 are circumferentially disposed at the outer wall of the sleeve 220, and the plurality of reinforcement blocks 210 are equally spaced apart from each other.
The diameter of the sleeve 220 needs to be larger than that of the anchor rod 100 in order to enable the anchor rod 100 to be inserted into the sleeve 220, and meanwhile, the diameter of the sleeve 220 cannot be too large, the sleeve 220 also needs to be matched with the anchor rod 100 to improve the capability of a single screw anchor to resist external horizontal load, so that the diameter of the sleeve 220 is only slightly larger than that of the anchor rod 100, and the plurality of reinforcing blocks 210 can effectively increase the capability of the single screw anchor to resist external horizontal load, in the embodiment, four reinforcing blocks 210 are selected, and the interval angle between each reinforcing block 210 is 90 degrees and is arranged on the outer wall of the sleeve 220.
It can be seen that, by setting the anchor rod 100, during construction, the anchor rod is firstly connected with a construction machine, drilling construction is performed in a vertical manner, compared with the inclined screw anchor foundation, the construction difficulty is greatly reduced, the horizontal side force resisting member is set, and by setting the sleeve 220, the horizontal side force resisting member 200 can be combined with the anchor rod 100 in a nested manner through the sleeve 220, and a pit slot which is set in advance is arranged, so that the horizontal side force resisting member 200 is fixed with the anchor rod 100, the external load is jointly borne by the horizontal side force resisting member and the anchor rod 100, the external horizontal load can be resisted by setting the plurality of reinforcing blocks 210, the external load resisting capability of the screw anchor single anchor foundation is improved, the integral horizontal displacement of the foundation is reduced, and the integral bearing performance of the screw anchor single anchor foundation is improved.
Fig. 2 shows a schematic structural view of a horizontal side force resisting member according to another embodiment of the present application.
In some embodiments, as shown in fig. 2, the reinforcement block 210 includes two reinforcement plates 211, an end plate 212, a top cover plate 213, and a bottom cover plate 214;
one side of the two reinforcing plates 211 is fixedly connected with the outer wall of the sleeve 220, and the two reinforcing plates 211 are identical in shape and size and are arranged in parallel;
the end plate 212 is disposed on one side of the two reinforcing plates 211 away from the sleeve 220, and two sides of the end plate 212 are respectively fixedly connected with the two reinforcing plates 211, so that one side of the two reinforcing plates 211 away from the sleeve 220 is sealed;
the top cover plate 213 and the bottom cover plate 214 are respectively disposed at the top and the bottom of the two reinforcing plates 211, and the top cover plate 213 and the bottom cover plate 214 are fixedly connected to the top or the bottom of the two reinforcing plates 211, so as to seal the top and the bottom of the two reinforcing plates 211.
Wherein, the two reinforcing plates 211 are rectangular plates with identical shapes and sizes, which are parallel to each other, one sides of the two reinforcing plates are fixedly connected with the outer wall of the sleeve 220, one sides of the two reinforcing plates, which are far away from the sleeve 220, are connected with the end plates 212, two sides of the end plates 212 are respectively connected with the end faces of the two reinforcing plates 211, two reinforcing plates 211 are sealed at one sides of the two reinforcing plates, which are far away from the sleeve 220, the top and the bottom of the two reinforcing plates 211 are respectively connected with the top cover plate 213 and the bottom cover plate 214, the top and the bottom of the two reinforcing plates 211 are respectively sealed to form a rectangular block, and the size and the shape of the end plates 212 are matched with the opening of the two reinforcing plates 211, which are far away from one side of the sleeve 220.
In some embodiments, as shown in fig. 2, the sum of the lengths of the reinforcing plate 211, the top cover plate 213, and the bottom cover plate 214 in the axial direction of the sleeve 220 is equal to the axial length of the sleeve 220.
The length of the reinforcing plate 211 in the circumferential direction of the sleeve 220 refers to the vertical length of the reinforcing plate 211, the lengths of the top cover plate 213 and the bottom cover plate 214 in the circumferential direction of the sleeve 220 refer to the thicknesses of the top cover plate 213 and the bottom cover plate 214, the top cover plate 213 and the bottom cover plate 214 are respectively arranged at the top and the bottom of the reinforcing plate 211, and the sum of the lengths of the top cover plate 213 and the bottom cover plate 214 is the length of the reinforcing block 210 in the axial direction of the sleeve 220.
In some embodiments, as shown in fig. 2, the top cover plate 213 and the bottom cover plate 214 are each provided with a gradually increasing width from a direction toward the end plate 212 toward the sleeve 220.
Wherein the top cover plate 213 and the bottom cover plate 214 are shaped like isosceles trapezoids, the shorter bottom edge is connected with the end plate 212 and the length is the same as the width of the end plate 212, the longer bottom edge is connected with the sleeve 220, and the shape is provided with a certain radian, and the radian is matched with the outer wall of the sleeve 220.
Fig. 3 shows a schematic structural view of another view of a horizontal side force resisting member according to another embodiment of the present application.
In some embodiments, as shown in fig. 3, the reinforcing block 210 further includes a plurality of connection plates 215, and the plurality of connection plates 215 are respectively disposed between the plurality of reinforcing blocks 210 to connect the top cover plates 213 and the bottom cover plates 214 of two adjacent reinforcing blocks 210.
Wherein, the connecting plates 215 are disposed between the plurality of reinforcing blocks 210, the number of which is related to the number of the reinforcing blocks 210, and the top and bottom of the reinforcing blocks 210 are respectively sealed by the top cover plate 213 and the bottom cover plate 214, and the connecting plates 215 respectively connect the top cover plates 213 and the bottom cover plates 214 of the adjacent two reinforcing blocks 210, so that the strength of the horizontal side force resisting member 200 can be effectively enhanced.
In some embodiments, the reinforcing plate 211, the end plate 212, the top cover plate 213, the bottom cover plate 214, the connecting plate 215 and the sleeve 220 are all connected by welding.
Wherein, all connect through the welding between reinforcing plate 211 and end plate 212, top apron 213, bottom apron 214, connecting plate 215 and sleeve 220, connecting plate 215 and top apron 213 and bottom apron 214 are also connected through the welding, easy operation to connect comparatively firmly.
In some embodiments, as shown in fig. 1, the anchor rod 100 includes: a rod body 110, a plurality of screw anchor plates 120 and bolt holes 130;
the plurality of screw anchor plates 120 are distributed along the circumferential direction of the rod body 110, the distances among the plurality of screw anchor plates 120 are the same, and the screw anchor plates 120 are perpendicular to the rod body 110;
the bolt hole 130 is provided at the top of the rod body 110.
Wherein the bolt hole 130 is used for connection with a construction machine at the time of construction.
The working process comprises the following steps: during construction, firstly, the anchor rod is connected with construction machinery through the bolt hole 130 arranged at the top, then drilling construction is carried out in a vertical mode, compared with an inclined spiral anchor foundation, the construction difficulty is greatly reduced, the horizontal side force resisting component 200 is combined with the anchor rod 100 in a nested mode through the sleeve 220, a pit slot which is dug in advance is arranged, the horizontal side force resisting component 200 is fixed with the anchor rod 100, the external load can be jointly borne by the horizontal side force resisting component 200, the external load resisting capability of the spiral anchor single anchor foundation is greatly improved through the external load resisting component 200, the integral horizontal displacement of the spiral anchor single anchor foundation is reduced, and the integral bearing performance of the spiral anchor single anchor foundation is improved.
The foregoing description, for purposes of explanation, has been presented in conjunction with specific embodiments. However, the above discussion in some examples is not intended to be exhaustive or to limit the embodiments to the precise forms disclosed above. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles and the practical application, to thereby enable others skilled in the art to best utilize the embodiments and various embodiments with various modifications as are suited to the particular use contemplated.
Claims (7)
1. A screw anchor single anchor foundation structure, wherein the single anchor foundation comprises: the anchor rod penetrates through the horizontal side force resisting component;
the horizontal side force resisting component comprises a sleeve and a horizontal reinforcing piece, the diameter of the sleeve is larger than that of the anchor rod, and the anchor rod penetrates through the sleeve;
the horizontal reinforcement comprises a plurality of reinforcement blocks which are circumferentially arranged on the outer wall of the sleeve, and the spacing angles among the reinforcement blocks are the same.
2. The screw anchor mono-anchor substructure of claim 1, wherein the reinforcement blocks comprise two reinforcement plates, end plates, top cover plate and bottom cover plate;
one side of each reinforcing plate is fixedly connected with the outer wall of the sleeve, and the two reinforcing plates are identical in shape and size and are arranged in parallel;
the end plates are arranged on one sides of the two reinforcing plates, which are far away from the sleeve, and the two sides of the end plates are respectively fixedly connected with the two reinforcing plates, so that one sides of the two reinforcing plates, which are far away from the sleeve, are sealed;
the top cover plate and the bottom cover plate are respectively arranged at the top and the bottom of the two reinforcing plates, and the top cover plate and the bottom cover plate are fixedly connected with the top or the bottom of the two reinforcing plates so as to seal the top and the bottom of the two reinforcing plates.
3. A screw anchor single anchor foundation structure according to claim 2, wherein the sum of the lengths of said reinforcing plate, said top cover plate and said bottom cover plate in the axial direction of said sleeve is equal to the axial length of said sleeve.
4. A screw anchor mono-anchor substructure according to claim 2, wherein said top cover plate and said bottom cover plate are each provided with a gradually increasing width from a direction towards said sleeve adjacent said end plate.
5. The screw anchor single anchor substructure of claim 4 wherein said reinforcement blocks further comprise a plurality of connection plates disposed between a plurality of said reinforcement blocks, respectively, connecting said top cover plates and said bottom cover plates of two adjacent said reinforcement blocks.
6. The screw anchor single anchor substructure of claim 5 wherein the reinforcement plate, end plate, top cover plate, bottom cover plate, connecting plate and sleeve are all connected by welding.
7. The screw anchor single-anchor substructure of claim 1, wherein said shank comprises: the bolt comprises a rod body, a plurality of spiral anchor discs and bolt holes;
the plurality of spiral anchor discs are distributed along the circumferential direction of the rod body, the distances among the plurality of spiral anchor discs are the same, and the spiral anchor discs are perpendicular to the rod body;
the bolt hole set up in the top of the body of rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222875051.1U CN219315796U (en) | 2022-10-28 | 2022-10-28 | Single anchor foundation structure of spiral anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222875051.1U CN219315796U (en) | 2022-10-28 | 2022-10-28 | Single anchor foundation structure of spiral anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219315796U true CN219315796U (en) | 2023-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222875051.1U Active CN219315796U (en) | 2022-10-28 | 2022-10-28 | Single anchor foundation structure of spiral anchor |
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|---|---|
| CN (1) | CN219315796U (en) |
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2022
- 2022-10-28 CN CN202222875051.1U patent/CN219315796U/en active Active
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