CN219930958U - Foundation raft anti-floating anchor rod structure - Google Patents
Foundation raft anti-floating anchor rod structure Download PDFInfo
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- CN219930958U CN219930958U CN202320982813.XU CN202320982813U CN219930958U CN 219930958 U CN219930958 U CN 219930958U CN 202320982813 U CN202320982813 U CN 202320982813U CN 219930958 U CN219930958 U CN 219930958U
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- inner cavity
- raft
- foundation
- anchor
- anchor rod
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- 238000007667 floating Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000004873 anchoring Methods 0.000 claims abstract description 22
- 239000011083 cement mortar Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000002344 surface layer Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000003487 anti-permeability effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a foundation raft anti-floating anchor rod structure, which comprises a raft foundation, an anchor seat, anchor rods, conical elastic water stop blocks and supporting pieces, wherein the anchor rods are arranged on the raft foundation; the anchoring seat is arranged in the raft foundation, a first inner cavity and a second inner cavity are arranged in the anchoring seat, an annular supporting table is formed between the first inner cavity and the second inner cavity, and the lower end of the second inner cavity is connected with a connecting pipe which extends downwards to the bottom of the raft foundation; the upper end of the anchor rod sequentially passes through the connecting pipe and the anchor seat; a first central hole is formed in the conical elastic water stop block; the support piece is internally provided with a second central hole, the support piece is supported on the annular support table and compresses the conical elastic water stop block in the second inner cavity, and the upper end of the anchor rod sequentially penetrates through the first central hole and the second central hole and is anchored with an anchor device which is fixedly propped against the support piece. The utility model reduces the construction difficulty and the construction cost on the premise of applying prestress to the anchor rod in a post-tensioning mode and ensuring good water stopping and impervious effects between the anchor rod and the raft foundation.
Description
Technical Field
The utility model relates to the technical field of constructional engineering, in particular to a foundation raft anti-floating anchor rod structure.
Background
When the buoyancy received by the underground building is greater than the self weight of the underground building, an anti-floating anchor rod is required to be designed for anchoring the raft foundation, and the anchor effect of the anchor rod on the raft foundation can be effectively improved by applying prestress to the anchor rod.
The Chinese patent No. 114561946A discloses a novel anti-corrosion and anti-seepage anchor rod structure for a building, wherein a settlement type post-tensioning end anchor lower anchor backing plate is connected with a metal corrugated pipe to form a relatively independent cavity, and a waterproof sealing closed loop of a tensioning end is completed through grouting material filling and epoxy resin waterproof material after tensioning locking is completed; the metal bellows/metal seamless is connected with the lower opening of the sedimentation type anchor backing plate with wings, so that a cavity is formed inside the pipe and the sedimentation type anchor backing plate from the cushion layer to prevent the infiltration of concrete pouring on the bottom plate, and C40 waterproof grouting material is injected into the cavity to form sealing water after the anchor rope is tensioned and locked. The anchor rod and the raft foundation in the scheme have good water stopping and seepage resisting effects, but the anchor rod and the raft foundation have the problems of troublesome construction and high construction cost.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides a foundation raft anti-floating anchor rod structure, which is used for reducing construction difficulty and construction cost on the premise of applying prestress to an anchor rod in a post-tensioning mode and ensuring good water stopping and seepage resisting effects between the anchor rod and a raft foundation.
The utility model provides a foundation raft anti-floating anchor rod structure, which comprises:
a raft foundation;
the anchoring seat is arranged in the raft foundation, the upper end of the anchoring seat penetrates out of the raft foundation, a first inner cavity extending to the upper end of the anchoring seat and a second inner cavity extending to the lower end of the anchoring seat are arranged in the anchoring seat, the lower end of the first inner cavity is connected with the upper end of the second inner cavity, the inner diameter of the lower end of the first inner cavity is larger than the diameter of the upper end of the second inner cavity, an annular supporting table is formed between the first inner cavity and the second inner cavity, the inner diameter of the second inner cavity is gradually reduced from top to bottom, and the lower end of the second inner cavity is connected with a connecting pipe extending downwards to the bottom of the raft foundation;
the lower end of the anchor rod is anchored under the ground at the lower side of the raft foundation, and the upper end of the anchor rod sequentially penetrates through the connecting pipe and the anchoring seat;
the conical elastic water stop block is adapted to the second inner cavity, and a first central hole is formed in the conical elastic water stop block;
the support piece, be equipped with the second centre bore in the support piece, the support piece supports on the annular brace table, the upper end of stock passes first centre bore on the toper elasticity stagnant water piece and the second centre bore on the support piece in proper order to the anchor has to support on the support piece, and the lower extreme of support piece compresses tightly toper elasticity stagnant water piece at the second inner chamber, compresses tightly and forms sealedly between toper elasticity stagnant water piece and second inner chamber and the stock.
Further, the lower side of the raft foundation is provided with a concrete cushion, and the lower end of the connecting pipe penetrates into the concrete cushion.
Further, the upper end of the connecting pipe is inserted into the second inner cavity at the lower end of the anchoring seat.
Further, the lower extreme of second inner chamber is equipped with the spliced eye, the upper end of connecting pipe is equipped with and inserts the bayonet joint in the spliced eye, be equipped with in the bayonet joint with the lower extreme of second inner chamber is in the following slot, the lower extreme of toper elasticity stagnant water piece is pressed in the slot.
Further, the periphery of the anchoring seat is positioned outside the second inner cavity and provided with a plurality of convex rings.
Further, a water stop steel plate is welded on the periphery of the connecting pipe.
Further, cement mortar is poured in the gap between the connecting pipe and the anchor rod.
Further, a concrete surface layer is arranged on the upper side of the raft foundation.
The beneficial effects of the utility model are as follows:
the utility model can carry out raft foundation construction after anchor rod construction is completed, when carrying out raft foundation construction, firstly respectively sleeving an anchor seat and a connecting pipe at the part of each anchor rod extending out of the ground, then carrying out reinforcement binding and concrete pouring construction of the raft foundation, after the concrete of the raft foundation reaches the set strength, respectively sleeving a conical elastic water stop block and a supporting piece at the upper end of each anchor rod in sequence, then respectively taking each supporting piece as a tensioning counterforce support, carrying out prestress tensioning on each anchor rod, extruding the conical elastic water stop block into a second inner cavity by the supporting piece in the tensioning process, compressing and sealing between the conical elastic water stop block and the second inner cavity and the anchor rod support so as to ensure good water stop effect, and after tensioning, propping the supporting piece on an annular supporting table, and simultaneously supporting the upper end of the anchor rod on the supporting piece through anchor.
Therefore, the utility model applies prestress to the anchor rod in a post-tensioning mode, and can ensure good water-stopping and seepage-proofing effects between the anchor rod and the raft foundation, and reduces construction difficulty and construction cost compared with the prior art.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.
In the drawings, a 100-raft foundation; 200-anchoring seats; 210-a first lumen; 220-a second lumen; 221-plug holes; 230-an annular support table; 240-connecting pipes; 241-plug; 242-slots; 243-water-stopping steel plates; 250-convex ring; 300-anchor rod; 400-conical elastic water stop blocks; 410-a first central bore; 500-supporting pieces; 510-a second central bore; 600-anchor; 700-concrete cushion; 800-cement mortar; 900-concrete facing.
Detailed Description
Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.
It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs.
As shown in fig. 1, the embodiment of the present utility model provides a foundation raft anti-floating anchor structure, which comprises a raft foundation 100, anchor seats 200, anchor rods 300, conical elastic water stop blocks 400 and supporting members 500.
The anchor seat 200 is arranged in the raft foundation 100, the upper end of the anchor seat 200 penetrates out of the raft foundation 100, a first inner cavity 210 extending to the upper end of the anchor seat 200 and a second inner cavity 220 extending to the lower end of the anchor seat 200 are arranged in the anchor seat 200, the lower end of the first inner cavity 210 is connected with the upper end of the second inner cavity 220, the inner diameter of the lower end of the first inner cavity 210 is larger than the diameter of the upper end of the second inner cavity 220, an annular supporting table 230 is formed between the first inner cavity 210 and the second inner cavity 220, the inner diameter of the second inner cavity 220 is gradually reduced from top to bottom, and a connecting pipe 240 extending downwards to the bottom of the raft foundation 100 is connected to the lower end of the second inner cavity 220;
the lower ends of the anchors 300 are anchored under the ground of the lower side of the raft foundation 100, and the upper ends of the anchors 300 sequentially pass through the connection pipe 240 and the anchor block 200.
The conical elastic water stop 400 is adapted to the second inner cavity 220, a first central hole 410 is provided in the conical elastic water stop 400, and the conical elastic water stop 400 can be made of rubber.
The second central hole 510 is formed in the supporting member 500, the supporting member 500 is supported on the annular supporting stand 230, the upper end of the anchor rod 300 sequentially passes through the first central hole 410 on the conical elastic water stop block 400 and the second central hole 510 on the supporting member 500, and is anchored with the anchor 600 which is fixedly supported on the supporting member 500, the lower end of the supporting member 500 compresses the conical elastic water stop block 400 on the second inner cavity 220, and the conical elastic water stop block 400, the second inner cavity 220 and the anchor rod 300 are compressed and form a seal.
According to the utility model, the raft foundation 100 construction can be carried out after the anchor rods 300 are constructed, when the raft foundation 100 construction is carried out, the anchor seat 200 and the connecting pipe 240 are sleeved on the parts, extending out of the ground, of each anchor rod 300 respectively, then the reinforcement bar binding and concrete pouring construction of the raft foundation 100 are carried out, after the concrete of the raft foundation 100 reaches the set strength, the conical elastic water stop blocks 400 and the supporting pieces 500 are sleeved at the upper ends of each anchor rod 300 in sequence, then the supporting pieces 500 are used as the reaction supports for tensioning, the prestress tensioning is carried out on each anchor rod 300, in the tensioning process, the conical elastic water stop blocks 400 are extruded into the second inner cavity 220 by the supporting pieces 500, the conical elastic water stop blocks 400, the second inner cavity 220 and the anchor rods 300 are tightly pressed and form a seal, so that a good water stop effect is ensured, after the tensioning is finished, the supporting pieces 500 are abutted on the annular supporting table 230, and meanwhile, the upper ends of the anchor rods 300 are supported on the supporting pieces 500 through the anchor devices 600.
Therefore, the utility model applies prestress to the anchor rod 300 in a post-tensioning manner, and can ensure good water-stopping and seepage-proofing effects between the anchor rod 300 and the raft foundation 100, which reduces construction difficulty and construction cost compared with the prior art.
In this embodiment, a concrete cushion 700 is disposed on the lower side of the raft foundation 100, and the lower end of the connection pipe 240 penetrates into the concrete cushion 700. During construction, the concrete cushion 700 needs to be constructed first, then the raft foundation 100 is constructed, and in the process of constructing the raft foundation 100, the concrete cushion 700 can play a role in supporting and fixing the lower end of the connecting pipe 240.
In this embodiment, a detachable connection structure is adopted between the connection pipe 240 and the anchor seat 200, the connection pipe 240 and the anchor seat 200 can be manufactured and transported separately, and assembled on site, when in assembly, the connection pipe 240 is installed first, then the concrete cushion 700 is poured, and then the anchor seat 200 is assembled at the upper end of the connection pipe 240 in the process of binding the steel bars of the raft foundation 100, and meanwhile, the anchor seat 200 is fixed on the steel bar framework of the raft foundation 100, so that not only is construction convenient, but also the anchor seat 200 is prevented from being shifted in the process of pouring the concrete of the raft foundation 100.
Specifically, the upper end of the connecting tube 240 is inserted into the second inner cavity 220 at the lower end of the anchor seat 200. Preferably, the lower end of the second inner cavity 220 is provided with a plug hole 221, the upper end of the connecting pipe 240 is provided with a plug 241 inserted into the plug hole 221, the plug 241 is internally provided with a slot 242 connected with the lower end of the second inner cavity 220 in sequence, and the lower end of the conical elastic water stop block 400 is pressed in the slot 242. After the tensioning and anchoring, the conical elastic water stop block 400 is pressed in the second inner cavity 220 and the slot 242, so that water seepage at the joint between the plug hole 221 and the plug 241 can be prevented.
In this embodiment, the outer periphery of the anchor 200 is located outside the second inner cavity 220 and is provided with a plurality of convex rings 250. By providing the convex ring 250 outside the anchor socket 200, not only can the anchoring force between the anchor socket 200 and the raft foundation 100 be improved, but also the anti-permeability capability between the anchor socket 200 and the raft foundation 100 can be increased.
In this embodiment, a water stop steel plate 243 is welded to the outer circumference of the connection pipe 240 to increase the anti-permeability between the connection pipe 240 and the raft foundation 100.
In this embodiment, cement mortar 800 is poured in the gap between the connecting pipe 240 and the anchor rod 300, the cement mortar 800 is specifically micro-expansive concrete, and needs to be poured between the connecting pipe 240 and the anchor rod 300 before tensioning, and tensioning of the anchor rod 300 needs to be performed immediately after the cement mortar 800 is poured between the connecting pipe 240 and the anchor rod 300, so as to ensure that tensioning of the anchor rod 300 is performed between initial setting of the cement mortar 800.
In this embodiment, a concrete facing 900 is provided on the upper side of the raft foundation 100 to serve as a leveling device for leveling the top surface of the raft foundation 100 and the landfill anchor 200.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.
Claims (8)
1. The utility model provides a foundation raft anti-floating anchor structure which characterized in that includes:
a raft foundation;
the anchoring seat is arranged in the raft foundation, the upper end of the anchoring seat penetrates out of the raft foundation, a first inner cavity extending to the upper end of the anchoring seat and a second inner cavity extending to the lower end of the anchoring seat are arranged in the anchoring seat, the lower end of the first inner cavity is connected with the upper end of the second inner cavity, the inner diameter of the lower end of the first inner cavity is larger than the diameter of the upper end of the second inner cavity, an annular supporting table is formed between the first inner cavity and the second inner cavity, the inner diameter of the second inner cavity is gradually reduced from top to bottom, and the lower end of the second inner cavity is connected with a connecting pipe extending downwards to the bottom of the raft foundation;
the lower end of the anchor rod is anchored under the ground at the lower side of the raft foundation, and the upper end of the anchor rod sequentially penetrates through the connecting pipe and the anchoring seat;
the conical elastic water stop block is adapted to the second inner cavity, and a first central hole is formed in the conical elastic water stop block;
the support piece, be equipped with the second centre bore in the support piece, the support piece supports on the annular brace table, the upper end of stock passes first centre bore on the toper elasticity stagnant water piece and the second centre bore on the support piece in proper order to the anchor has to support on the support piece, and the lower extreme of support piece compresses tightly toper elasticity stagnant water piece at the second inner chamber, compresses tightly and forms sealedly between toper elasticity stagnant water piece and second inner chamber and the stock.
2. The foundation raft anti-floating anchor structure of claim 1, wherein:
the lower side of raft foundation is equipped with the concrete cushion, the lower extreme of connecting pipe penetrates the concrete cushion.
3. The foundation raft anti-floating anchor structure of claim 2, wherein:
the upper end of the connecting pipe is inserted into the second inner cavity at the lower end of the anchoring seat.
4. A foundation raft anti-floating anchor structure as claimed in claim 3, wherein:
the lower extreme of second inner chamber is equipped with the spliced eye, the upper end of connecting pipe is equipped with and inserts the bayonet joint in the spliced eye, be equipped with in the bayonet joint with the lower extreme of second inner chamber is in the slot in the same direction as the joint, the lower extreme of toper elasticity stagnant water piece is pressed in the slot.
5. The foundation raft anti-floating anchor structure of claim 1, wherein:
the periphery of the anchoring seat is positioned outside the second inner cavity and provided with a plurality of convex rings.
6. The foundation raft anti-floating anchor structure of claim 1, wherein:
and a water stop steel plate is welded on the periphery of the connecting pipe.
7. The foundation raft anti-floating anchor structure of claim 1, wherein:
cement mortar is poured in the gap between the connecting pipe and the anchor rod.
8. The foundation raft anti-floating anchor structure of claim 1, wherein:
and a concrete surface layer is arranged on the upper side of the raft foundation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320982813.XU CN219930958U (en) | 2023-04-26 | 2023-04-26 | Foundation raft anti-floating anchor rod structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320982813.XU CN219930958U (en) | 2023-04-26 | 2023-04-26 | Foundation raft anti-floating anchor rod structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219930958U true CN219930958U (en) | 2023-10-31 |
Family
ID=88499039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320982813.XU Active CN219930958U (en) | 2023-04-26 | 2023-04-26 | Foundation raft anti-floating anchor rod structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219930958U (en) |
-
2023
- 2023-04-26 CN CN202320982813.XU patent/CN219930958U/en active Active
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