CN108385711B - Anchor cage ring type foundation and installation method thereof - Google Patents
Anchor cage ring type foundation and installation method thereof Download PDFInfo
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- CN108385711B CN108385711B CN201810350437.6A CN201810350437A CN108385711B CN 108385711 B CN108385711 B CN 108385711B CN 201810350437 A CN201810350437 A CN 201810350437A CN 108385711 B CN108385711 B CN 108385711B
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000009434 installation Methods 0.000 title abstract description 11
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 238000011900 installation process Methods 0.000 abstract description 4
- 230000001681 protective effect Effects 0.000 description 7
- 239000000565 sealant Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
- E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/16—Shapes
- E02D2200/1685—Shapes cylindrical
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/20—Miscellaneous comprising details of connection between elements
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Piles And Underground Anchors (AREA)
- Foundations (AREA)
Abstract
The invention discloses an anchor cage ring type foundation and an installation method thereof. The anchor cage ring type foundation comprises an anchor bolt, an upper anchor plate and a lower anchor plate, wherein the upper anchor plate comprises a body and an adapter, a through space which is communicated with the body along the axial direction of the anchor bolt is formed in the body, the adapter is detachably arranged in the through space, the anchor cage ring type foundation further comprises a leveling nut which can be in threaded fit with the anchor bolt to level the upper anchor plate, the anchor bolt which is matched with the leveling nut can penetrate through the adapter, and the outer edge size of the leveling nut is smaller than the size of the through space in a plane perpendicular to the axis of the anchor bolt. The anchor cage ring type foundation provided by the invention not only can realize the leveling of the upper anchor plate through the leveling nut in the installation process of the anchor cage ring type foundation, but also can take out the leveling nut from the anchor cage ring type foundation through the through space after the leveling is finished, so that the influence of the leveling nut on the replacement of an anchor bolt is avoided.
Description
Technical Field
The invention relates to the technical field of engineering, in particular to an anchor cage ring type foundation and an installation method thereof.
Background
At present, the on-site constructed concrete foundation support is adopted for the construction of the frames and towers of large or ultra-large equipment, including wind driven generators, wind turbines, devices for connecting power transmission lines to illumination and signal devices, bridge supports and the like. Especially in recent years, with the high-speed development of economy and the improvement of social environmental awareness in China, the wind power generation scale is increasingly increased, and wind power generator towers are becoming the mainstream. For this reason, the anchor cage ring foundation plays an increasing role in wind power towers.
In the work progress, the crab-bolt can appear damaging and cracked condition because of reasons such as atress overload, to this problem, propose the removable anchor cage ring formula basis of crab-bolt among the prior art for the crab-bolt can be taken out from the top of anchor cage ring formula basis, because the leveling nut of anchor cage ring formula basis is the below that is located the anchor slab in general, and the size is greater than the crab-bolt installation through-hole, this just causes the removable anchor cage ring formula basis of current crab-bolt to be unable to install the leveling nut, and then can't realize the leveling of anchor slab in the installation, perhaps the leveling nut can take place to warp and hinder the removal of crab-bolt after finishing and applying the load.
Disclosure of Invention
In view of the above, the present invention aims to provide an anchor cage ring type foundation capable of leveling an upper anchor plate and replacing an anchor bolt, and an installation method thereof.
In order to achieve the above purpose, on one hand, the present invention adopts the following technical scheme:
the utility model provides an anchor cage ring formula basis, includes the crab-bolt, goes up anchor slab and anchor slab down, go up anchor slab and include body and adaptor, be provided with on the body and follow the axial of crab-bolt link up the space of lining up of body, the adaptor can be dismantled and set up in the space of lining up, anchor cage ring formula basis still includes leveling nut, leveling nut can with the crab-bolt forms screw-thread fit in order to right go up anchor slab is leveled, can with leveling nut complex the crab-bolt passes the adaptor, leveling nut with the space of lining up sets up to, leveling nut can be passed through the space takes out.
Preferably, in at least one azimuthal condition, the outer edge dimension of the levelling nut is smaller than the dimension of the through space in a plane perpendicular to the axis of the anchor bolt.
Preferably, the body is of a split structure and comprises a plurality of fan-shaped anchor plate units which are arranged at intervals along the circumferential direction;
adjacent anchor plate units are connected together through the adapter; and/or the number of the groups of groups,
the space between adjacent anchor plate units forms the through space.
Preferably, the adaptor comprises a connecting plate and a positioning part protruding out of the lower surface of the connecting plate, a first through hole penetrating through the connecting plate and the positioning part is formed in the adaptor, so that the upper part of the anchor bolt penetrates through the adaptor, and the outer edge size of the leveling nut is smaller than the outer edge size of the positioning part in a plane perpendicular to the axis of the anchor bolt.
Preferably, the anchor bolt is sleeved with a sheath at a part between the upper anchor plate and the lower anchor plate, and a gap is reserved between the sheath and the anchor bolt.
Preferably, the sheath sleeved on the anchor bolt matched with the leveling nut comprises a plurality of split sheath units along the axial direction, and the relative positions among the sheath units are adjustable.
Preferably, the plurality of sheath units includes a first sheath unit and a second sheath unit from top to bottom,
the leveling nut is arranged in the first sheath unit; and/or the number of the groups of groups,
the inner side surface of the first sheath unit is in threaded connection with the outer side surface of the second sheath unit.
Preferably, the anchor cage ring type foundation further comprises a positioning nut and a shield, a second through hole is formed in the lower anchor plate, the lower portion of the anchor bolt penetrates out of the lower anchor plate through the second through hole, the positioning nut is located above the lower anchor plate, the shield is arranged below the lower anchor plate and covers the portion, penetrating out of the lower anchor plate, of the anchor bolt, and the positioning nut and the shield are used for positioning the anchor bolt on the lower anchor plate.
Preferably, the positioning nut is located within the sheath; and/or the number of the groups of groups,
in a plane perpendicular to the axis of the anchor bolt, the outer edge dimension of the positioning nut is smaller than the dimension of the first through hole; and/or the number of the groups of groups,
in a plane perpendicular to the axis of the anchor bolt, the outer edge size of the positioning nut is smaller than the size of a through hole on a tower cylinder flange matched with the anchor cage ring type foundation; and/or the number of the groups of groups,
the upper anchor plate is provided with a third through hole for an anchor bolt which is not matched with the leveling nut to pass through, and the outer edge size of the positioning nut is smaller than the size of the third through hole in a plane perpendicular to the axis of the anchor bolt; and/or the number of the groups of groups,
the positioning nut is a round nut;
or,
the positioning nut comprises a plate-shaped positioning part and a protruding part protruding from one side of the positioning part, a threaded hole penetrating through the positioning part and the protruding part is formed in the positioning nut, the positioning part is positioned between the sheath and the lower anchor plate, and the protruding part extends into the sheath;
preferably, the plate-shaped positioning portion is a polygonal plate.
Preferably, a threaded hole is formed in the upper end face of the anchor bolt; and/or the number of the groups of groups,
the lower end of the anchor bolt is provided with a guide part, and the cross section area of the guide part is gradually increased from bottom to top; and/or the number of the groups of groups,
the anchor bolt includes an upper half and a lower half, the cross-sectional area of the upper half being smaller than the cross-sectional area of the lower half.
In order to achieve the above purpose, on the other hand, the present invention also adopts the following technical scheme:
a method of installing an anchor cage ring foundation as described above, the method comprising:
installing the lower anchor plate and leveling the lower anchor plate;
positioning and connecting the anchor bolt with the lower anchor plate;
mounting the upper anchor plate to the anchor bolt;
leveling the upper anchor plate by using a leveling nut;
pouring the anchor cage;
after pouring is completed, the adaptor is disassembled, the leveling nut is taken out of the through space, and then the adaptor is assembled back to the body;
and installing a tower cylinder flange plate.
The anchor cage ring type foundation is provided with the through space on the upper anchor plate, the adapter piece is detachably arranged in the through space, and the outer edge dimension of the leveling nut is smaller than the dimension of the through space in a plane perpendicular to the axis of the anchor bolt, so that the leveling of the upper anchor plate can be realized through the leveling nut in the installation process of the anchor cage ring type foundation, and the leveling nut can be taken out from the anchor cage ring type foundation through the through space after the leveling is finished, and the influence of the leveling nut on the replacement of the anchor bolt is avoided.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings.
FIG. 1 shows a schematic structural view of an anchor cage ring foundation provided by an embodiment of the present invention;
FIG. 2 shows one of the sectional views of the assembled structure of the first anchor bolt, the upper anchor plate, the tower flange and the lower anchor plate provided in the embodiment of the invention;
FIG. 3 shows a cross-sectional view of an assembled structure of a second anchor, an upper anchor plate, a tower flange, and a lower anchor plate provided in accordance with an embodiment of the present invention;
FIG. 4 shows a schematic structural view of an upper anchor plate provided in an embodiment of the present invention;
FIG. 5 is a schematic view of an adaptor according to an embodiment of the present invention;
FIG. 6 shows a schematic structural view of a shield provided in an embodiment of the present invention;
FIG. 7 shows a second cross-sectional view of the assembled structure of the first anchor, upper anchor plate, tower flange, lower anchor plate provided by the present invention.
In the figure:
1. an anchor bolt; 11. a first anchor bolt; 12. a second anchor bolt; 13. a guide part; 2. an upper anchor plate; 212. a through space; 22. an adapter; 221. a connecting plate; 222. a positioning part; 223. a first through hole; 23. a third through hole; 3. a lower anchor plate; 31. a second through hole; 4. leveling the nut; 5. a sheath; 51. a first sheath unit; 52. a second sheath unit; 6. positioning a nut; 61. a positioning part; 62. a protruding portion; 7. a shield; 71. a quadrangle nut; 72. a plug; 81. a nut washer; 82. a fastening nut; 9. a protective sleeve; 10. a tower cylinder flange; 101. and a through hole.
Detailed Description
The present invention is described below based on embodiments, and it will be understood by those of ordinary skill in the art that the drawings provided herein are for illustrative purposes and that the drawings are not necessarily drawn to scale.
Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, it is the meaning of "including but not limited to".
As used herein, "upper" and "lower" refer to the orientation of the anchor cage ring foundation during normal use, and reference may be made to the orientation shown in FIG. 2.
The application provides an anchor cage ring type foundation, as shown in fig. 1, it includes a plurality of crab-bolts 1, is annular last anchor slab 2 and annular lower anchor slab 3, and the upper portion of crab-bolt 1 passes last anchor slab 2 and is fixed with the relative position of last anchor slab 2, and the lower part of crab-bolt 1 passes lower anchor slab 3 and with lower anchor slab 3 fixed connection to form anchor cage ring type foundation structure.
The anchor cage ring foundation further comprises leveling nuts 4 for leveling the upper anchor plate 2, preferably, the leveling nuts 4 are provided in plurality, a part of the anchor bolts 1 in the plurality of anchor bolts 1 can form threaded fit with the leveling nuts 4, specifically, the anchor bolts 1 comprise a plurality of first anchor bolts 11 and a plurality of second anchor bolts 12, the plurality of first anchor bolts 11 are preferably arranged along the circumferential direction and are used for forming threaded fit with the leveling nuts 4, for example, in the embodiment shown in fig. 1, four groups of first anchor bolts 11 uniformly distributed along the circumferential direction are included, each group comprises four first anchor bolts 11, a plurality of second anchor bolts 12 are uniformly distributed between adjacent groups of first anchor bolts 11 along the circumferential direction, and the second anchor bolts 12 are not matched with the leveling nuts 4. As shown in fig. 4 to 6, the upper anchor plate 2 comprises a body and an adapter 22, the body is provided with a through space 212 which is penetrated through the body along the axial direction of the anchor bolt 1, the adapter 22 is detachably arranged in the through space 212 so as to seal the through space 212, the first anchor bolt 11 passes through the adapter 22, the leveling nut 4 and the through space 212 are arranged so that the leveling nut 4 can be taken out through the through space 212, thus, the leveling nut 4 can be taken out from the through space 212 after the leveling work of the leveling nut 4 is completed, and the change of the anchor bolt 1 caused by the leveling nut 4 is avoided (the existence of the leveling nut 4 can form interference when the anchor bolt 1 is pulled out of an anchor cage ring type foundation).
Preferably, in a plane perpendicular to the axis of the anchor bolt 1, the outer edge dimension of the leveling nut 4 is smaller than the dimension of the through space 212 in at least one azimuth state, so that when the leveling nut 4 needs to be taken out, the leveling nut 4 can be taken out through the through space 212 by turning the leveling nut 4 to an appropriate azimuth, and further preferably, in any azimuth state, the outer edge dimension of the leveling nut 4 is always smaller than the dimension of the through space 212 in a plane perpendicular to the axis of the anchor bolt 1, so that the operation of taking out the leveling nut 4 can be further facilitated.
The through space 212 may be formed by a through hole or a groove formed in the upper anchor plate 2, and in a preferred embodiment, as shown in fig. 4, the body is in a circular ring structure, a groove is formed in the circular ring structure, a through fourth through hole is formed in the bottom of the groove, and an adapter member is further included, as shown in fig. 5, the adapter member 22 includes a connection plate 221 and a positioning portion 222 protruding from the lower surface of the connection plate 221, and the adapter member 22 is provided with a first through hole 223 penetrating the connection plate 221 and the positioning portion 222 for the upper portion of the first anchor 11 to pass through, and in a plane perpendicular to the axis of the anchor 1, the outer edge size of the leveling nut 4 is smaller than the outer edge size of the positioning portion 222, as shown in fig. 2, so that the leveling nut 4 can be removed from the through space 212 when the adapter member 22 is detached. The positioning portion 222 is, for example, in a cylindrical structure as shown in fig. 6, and is matched with the fourth through hole, and the connecting plate 221 is in a fan shape, and is matched with the groove on the body. As shown in fig. 3, the upper anchor plate 2 is provided with a third through hole 23 through which the second anchor bolt 12 passes. Further preferably, the body is a split structure, which comprises a plurality of fan-shaped anchor plate units arranged at intervals along the circumferential direction, the space between adjacent anchor plate units forms the through space 212, and the anchor plate units are connected together through the adapter 22. The body is arranged into a split structure, so that the upper anchor plate 2 is convenient to transport and store.
In order to guarantee the guard action to crab-bolt 1, establish sheath 5 at the outside cover of crab-bolt 1 generally, current practice is established the PVC pipe box on crab-bolt 1 generally, then use pyrocondensation pipe to seal the both ends mouth of PVC pipe, this can influence the taking out of crab-bolt 1, in this application, as shown in fig. 2 and 3, the crab-bolt 1 is equipped with sheath 5 on the part between anchor plate 2 and lower anchor plate 3 in the cover, the clearance has between sheath 5 and the crab-bolt 1, so, make things convenient for the taking out of crab-bolt 1, further preferably, at first carry out anticorrosive surface treatment or at the surface coating rust-proof grease of crab-bolt 1 to crab-bolt 1, then carry out comprehensive seal with crab-bolt 1 with pyrocondensation pipe, reduce wearing and tearing in the installation, keep apart crab-bolt 1 and external moisture's contact, at last sheathes in the sheath 5 again, can also beat the sealant between sheath 5 and upper anchor plate 2, lower anchor plate 3, thereby ensure that the cement grouting can not pour into the sheath 5 inside, can further improve the guard effect to crab-bolt 1 like, sheath 5 can be for example hard PVC pipe.
The sheath 5 fitted over the second anchor bolt 12 is preferably of unitary construction, and more preferably of tubular construction having axially uniform inner and outer diameters. In order to avoid the effect of the sheath 5 on the operation of the leveling nut 4, preferably, the sheath 5 sleeved on the first anchor bolt 11 includes a plurality of sheath units which are split along the axial direction, and the positions between the sheath units are adjustable, for example, the sheath 5 is of a telescopic tube structure, so that the leveling nut 4 can be exposed to the outside by adjusting the positions between the sheath units when the leveling nut 4 needs to be operated, and in addition, after the leveling is completed, the length of the adjusting sheath can be increased by adjusting the positions between the sheath units, so that the sheath 5 can form a tight fit with both the upper anchor plate 2 and the lower anchor plate 3.
In a specific embodiment, as shown in fig. 2, the plurality of sheathing units includes a first sheathing unit 51 and a second sheathing unit 52 from top to bottom, the first sheathing unit 51 has an inner diameter larger than the outer diameter of the leveling nut 4, the second sheathing unit 52 has an inner diameter smaller than the outer diameter of the leveling nut 4, and the inner side surface of the first sheathing unit 51 is screw-coupled with the outer side surface of the second sheathing unit 52, so that when the leveling nut 4 needs to be operated, the first sheathing unit 51 is rotated to move the first sheathing unit 51 downward, thereby exposing the leveling nut 4, and after the leveling is completed, the first sheathing unit 51 is reversely rotated to move the first sheathing unit 51 upward, so that the first sheathing unit 51 is brought into close contact with the upper anchor plate 2. Preferably, a sealant is provided between the first sheath unit 51 and the second sheath unit 52, so that the protection effect on the anchor bolt 1 can be further improved.
Further, as shown in fig. 2 and 3, the anchor cage ring base further includes a positioning nut 6 and a shield 7, the positioning nut 6 and the shield 7 being used to position the anchor bolt 1 on the lower anchor plate 3. Specifically, be provided with second through-hole 31 on the anchor plate 3 down, anchor plate 3 is worn out to the lower part of crab-bolt 1 through second through-hole 31, and positioning nut 6 is located the top of anchor plate 3 down, and guard shield 7 sets up in the below of anchor plate 3 down and covers the part of anchor bolt 1 wearing out anchor plate 3 down, so, can be with anchor bolt 1 and anchor plate 3 fixed connection down through positioning nut 6 and guard shield 7, and because guard shield 7 can cover the whole structure that exposes anchor bolt 1 in the outside, improved the protection effect to anchor bolt 1. In order to facilitate the retention of the positioning nut 6, the aperture of the second through hole 31 is preferably only 1 to 3mm larger than the diameter of the anchor bolt 1. In order to avoid interference of the positioning nut 6 with other structures when the anchor bolt 1 is removed, preferably, as shown in fig. 2, the outer edge size of the positioning nut 6 is smaller than the size of the first through hole 223 and smaller than the size of the through hole 101 on the tower flange 10 matched with the anchor cage ring type foundation in a plane perpendicular to the axis of the anchor bolt 1, and as shown in fig. 3, the outer edge size of the positioning nut 6 is smaller than the size of the third through hole 23 and smaller than the size of the through hole 101 on the tower flange 10 matched with the anchor cage ring type foundation in a plane perpendicular to the axis of the anchor bolt 1, so that both the first anchor bolt 11 and the second anchor bolt 12 can be conveniently removed. To further facilitate the removal of the positioning nut 6, the positioning nut 6 is preferably a round nut.
Wherein the shield 7 may comprise a hexagonal nut or may comprise a quadrangular nut 71 as shown in fig. 6, so that it is convenient to restrict the rotation of the shield 7 after the shield 7 is coated with grouting cement. Preferably, the threaded hole on the quadrangular nut 71 or the hexagonal nut is processed into a through hole form to improve processing manufacturability and facilitate thread surface treatment, and the shield 7 further comprises a plug 72, wherein the plug 72 is matched with sealant to plug the threaded hole of the nut. It is further preferred that the joint between the shield 7 and the lower anchor plate 3 is sealed by a sealant to further enhance the protection of the anchor bolt 1.
Preferably, in order to facilitate the replacement of the anchor bolt 1 by hoisting, a threaded hole is machined in the upper end surface of the anchor bolt 1 to install the hoisting device. In order to ensure that the lower thread is easy to center when the anchor bolt 1 is replaced, the lower end of the anchor bolt 1 is provided with a guide part 13, and the cross-sectional area of the guide part 13 is gradually increased from bottom to top (the cross-section here refers to the surface perpendicular to the axis of the anchor bolt 1 and cut on the anchor bolt 1), for example, a chamfer is machined at the lower end part of the anchor bolt 1, and a mark can be made by using a relatively conspicuous color.
For the convenience of processing, the anchor bolt 1 can adopt the isodiametric structure, namely along the radial uniformity of axis direction, for the convenience of taking out of fracture anchor bolt 1, preferably, anchor bolt 1 includes first half and second half, and the cross-sectional area of first half is less than the cross-sectional area of second half, so, can guarantee that the fracture position is first half when atress overload damages anchor bolt 1 to be favorable to taking out of fracture anchor bolt 1.
Further, the anchor cage ring type foundation further comprises a nut gasket 81, a fastening nut 82 and a protective sleeve 9, after the installation of the upper anchor plate 2 and the tower flange 10 is completed, the part of the anchor bolt 1 penetrating out of the tower flange 10 is fastened through the fastening nut 82 and the nut gasket 81, and then the part of the anchor bolt 1 penetrating out of the tower flange 10 is covered by the protective sleeve 9, preferably, the protective sleeve 9 comprises a top part and a peripheral part, a threaded blind hole is formed in the top part, and the upper end of the anchor bolt 1 is in threaded connection with the threaded blind hole. Preferably, the protection sleeve 9 and the tower flange 10 are sealed by sealant to ensure the protection of the anchor bolt 1.
The installation method of the anchor cage ring type foundation comprises the following steps:
installing the lower anchor plate 3 and leveling the lower anchor plate 3;
the first anchor bolt 11 and the second anchor bolt 12 are respectively sleeved with a sheath 5 and connected with a positioning nut 6, then the lower parts of the first anchor bolt 11 and the second anchor bolt 12 respectively pass through a second through hole 31 of the lower anchor plate 3, are fastened by the positioning nut 6, respectively utilize the positioning nut 6 and the sheath 7 to complete the installation and positioning of the first anchor bolt 11, the second anchor bolt 12 and the lower anchor plate 3,
mounting the leveling nut 4 to the first anchor bolt 11;
assembling a plurality of anchor plate units into an annular upper anchor plate 2 through the adapter 22, and hoisting the upper anchor plate 2 so that the first anchor bolts 11 pass through the first through holes 223 and the second anchor bolts 12 pass through the third through holes 23;
leveling the upper anchor plate 2 by operating the leveling nut 4 by adjusting the relative positions of the first and second sheathing units 51 and 52 so that the leveling nut 4 is exposed;
after leveling is finished, the first sheath unit 51 is rotated, so that the leveling nut 4 is covered by the first sheath unit 51, the top surface of the first sheath unit 51 is ensured to be in close contact with the upper anchor plate 2, and if gaps exist, sealant can be applied between the first sheath unit 51 and the upper anchor plate 2;
pouring the anchor cage;
after pouring is completed and the cement foundation is solidified, the adaptor 22 is disassembled, the leveling nut 4 is taken out from the through space 212, and then the adaptor 22 is assembled back to the body;
hoisting the tower cylinder flange 10, aligning the through hole 101 on the tower cylinder flange 10 with the anchor bolt 1, installing the nut gasket 81 and the fastening nut 82, fastening the anchor bolt 1 and the fastening nut 82 according to technical requirements, performing corresponding rust-proof treatment, and installing the protective sleeve 9.
Because the leveling nut 4 is removed in the installation process, the replacement of the anchor bolt 1 is not affected, specifically, when the anchor bolt 1 needs to be replaced, the protective sleeve 9, the fastening nut 82 and the nut gasket 81 are detached, the anchor bolt 1 is screwed away from the positioning nut 6 by using a special tool, the anchor bolt 1 is lifted out, a new anchor bolt 1 is lifted into a corresponding hole site, the anchor bolt 1 is screwed into the positioning nut 6 according to the calibrated length of the anchor bolt 1, and the nut gasket 81, the fastening nut 82 and the protective sleeve 9 are installed again, so that the replacement of the anchor bolt 1 is completed.
In the embodiment shown in fig. 2, when the anchor bolt 1 needs to be replaced, the anchor bolt 1 is required to be taken out together with the positioning nut 6, which results in that the first through hole 223 and the through hole 101 on the tower flange 10 are large in size and affect the structural strength, and for this problem, preferably, as shown in fig. 7, the positioning nut 6 includes a plate-shaped positioning portion 61 and a protruding portion 62 protruding from one side of the positioning portion 61, a threaded hole penetrating the positioning portion 61 and the protruding portion 62 is provided on the positioning nut 6, the anchor bolt 1 is matched with the threaded hole, the positioning portion 61 is located between the sheath 5 and the lower anchor plate 3, the protruding portion 62 protrudes into the sheath 5, preferably, the outer diameter of the positioning portion 61 is larger than the outer diameter of the sheath 5, so that the positioning portion 61 has a part of the structure protruding from the sheath 5 in the radial direction, thereby facilitating positioning of the positioning portion 61 after casting. Thus, when the anchor bolt 1 needs to be replaced, the anchor bolt 1 can be separated from the positioning nut 6 by rotating the anchor bolt 1. In order to enhance the positioning effect of cement on the positioning portion 61, the positioning portion 61 is preferably a polygonal plate, for example, a hexagonal plate.
The anchor cage ring type foundation provided by the invention is provided with the through space 212 on the upper anchor plate 2, the adapter piece 22 is detachably arranged in the through space 212, and the outer edge dimension of the leveling nut 4 is smaller than the dimension of the through space 212 in a plane perpendicular to the axis of the anchor bolt 1, so that the leveling of the upper anchor plate 2 can be realized through the leveling nut 4 in the installation process of the anchor cage ring type foundation, and the leveling nut 4 can be taken out from the anchor cage ring type foundation through the through space 212 after the leveling is finished, thereby avoiding the influence of the leveling nut 4 on the replacement of the anchor bolt 1.
It is easy to understand by those skilled in the art that the above preferred embodiments can be freely combined and overlapped without conflict.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The anchor cage ring type foundation is characterized by comprising an anchor bolt, an upper anchor plate and a lower anchor plate, wherein the upper anchor plate comprises a body and an adapter, a through space which penetrates through the body along the axial direction of the anchor bolt is formed in the body, the adapter is detachably arranged in the through space, the body is of a split type structure and comprises a plurality of fan-shaped anchor plate units which are arranged at intervals along the circumferential direction, adjacent anchor plate units are connected together through the adapter, the space between the adjacent anchor plate units forms the through space, the body is of a circular structure, a groove is formed in the circular structure, and a through fourth through hole is formed in the bottom of the groove;
the anchor cage ring type foundation further comprises a leveling nut, the leveling nut can be in threaded fit with the anchor bolt to level the upper anchor plate, the anchor bolt which can be matched with the leveling nut passes through the adapter, and the leveling nut and the through space are arranged in such a way that the leveling nut can be taken out through the through space;
the adaptor includes the connecting plate and protrudes in the lower surface setting of connecting plate location portion, location portion be tubular structure, with fourth through hole cooperatees, the connecting plate is the fan annular, with recess on the body cooperatees, be provided with on the adaptor and run through the connecting plate with the first through-hole of location portion, so that upper portion of crab-bolt passes, in with in the axis vertically plane of crab-bolt, leveling nut's outer fringe size is less than the outer fringe size of location portion.
2. The anchor cage ring foundation of claim 1, wherein in at least one azimuthal condition, the leveling nut has an outer edge dimension that is smaller than the dimension of the through space in a plane perpendicular to the axis of the anchor bolt.
3. The anchor cage ring foundation of claim 1, wherein said anchor bolt is sheathed over a portion between said upper anchor plate and said lower anchor plate, said sheath having a gap with said anchor bolt.
4. An anchor cage ring foundation according to claim 3, wherein said jacket fitted over an anchor bolt engaged with said leveling nut comprises a plurality of split jacket units in an axial direction, and a relative position between said jacket units is adjustable;
the plurality of sheath units comprise a first sheath unit and a second sheath unit from top to bottom,
the leveling nut is arranged in the first sheath unit,
the inner side surface of the first sheath unit is in threaded connection with the outer side surface of the second sheath unit.
5. The anchor cage ring type foundation of claim 3, further comprising a positioning nut and a shield, wherein a second through hole is formed in the lower anchor plate, the lower portion of the anchor bolt penetrates out of the lower anchor plate through the second through hole, the positioning nut is located above the lower anchor plate, the shield is arranged below the lower anchor plate and shields the portion of the anchor bolt penetrating out of the lower anchor plate, and the positioning nut and the shield position the anchor bolt on the lower anchor plate.
6. The anchor cage ring foundation of claim 5, wherein said positioning nut is located within said sheath;
in a plane perpendicular to the axis of the anchor bolt, the outer edge dimension of the positioning nut is smaller than the dimension of the first through hole;
in a plane perpendicular to the axis of the anchor bolt, the outer edge size of the positioning nut is smaller than the size of a through hole on a tower cylinder flange matched with the anchor cage ring type foundation;
the upper anchor plate is provided with a third through hole for an anchor bolt which is not matched with the leveling nut to pass through, and the outer edge size of the positioning nut is smaller than the size of the third through hole in a plane perpendicular to the axis of the anchor bolt;
the positioning nut is a round nut;
the positioning nut comprises a plate-shaped positioning part and a protruding part protruding from one side of the positioning part, a threaded hole penetrating through the positioning part and the protruding part is formed in the positioning nut, the positioning part is positioned between the sheath and the lower anchor plate, and the protruding part extends into the sheath;
the plate-shaped positioning part is a polygonal plate.
7. Anchor cage ring foundation according to one of claims 1 to 6, characterized in that threaded holes are provided on the upper end face of the anchor bolt;
the lower end of the anchor bolt is provided with a guide part, and the cross section area of the guide part is gradually increased from bottom to top;
the anchor bolt includes an upper half and a lower half, the cross-sectional area of the upper half being smaller than the cross-sectional area of the lower half.
8. A method of installing an anchor cage ring foundation as claimed in any one of claims 1 to 7, wherein said method of installing comprises:
installing the lower anchor plate and leveling the lower anchor plate;
positioning and connecting the anchor bolt with the lower anchor plate;
mounting the upper anchor plate to the anchor bolt;
leveling the upper anchor plate by using a leveling nut;
pouring the anchor cage;
after pouring is completed, the adaptor is disassembled, the leveling nut is taken out of the through space, and then the adaptor is assembled back to the body;
and installing a tower cylinder flange plate.
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| CN201810350437.6A CN108385711B (en) | 2018-04-18 | 2018-04-18 | Anchor cage ring type foundation and installation method thereof |
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| CN201810350437.6A CN108385711B (en) | 2018-04-18 | 2018-04-18 | Anchor cage ring type foundation and installation method thereof |
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| CN108385711B true CN108385711B (en) | 2024-03-22 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372007B (en) * | 2018-11-28 | 2023-11-07 | 长江三峡集团福建能源投资有限公司 | Sealing anchor bolt for installing anchor bolt cage of offshore wind turbine and construction method of sealing anchor bolt |
| CN111661746B (en) * | 2019-03-07 | 2023-03-24 | 江苏金风科技有限公司 | Lifting appliance |
| CN112482430B (en) * | 2020-11-16 | 2022-02-01 | 中国空气动力研究与发展中心设备设计及测试技术研究所 | Replaceable secondary grouting anchor bolt foundation and replacement and installation method |
| CN112482428B (en) * | 2020-11-16 | 2022-02-08 | 中国空气动力研究与发展中心设备设计及测试技术研究所 | Replaceable anchor bolt assembly for concrete foundation |
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