CN215857681U - Fixed end seepage-proofing structure of pressure type unbonded prestressed anti-floating anchor rod - Google Patents
Fixed end seepage-proofing structure of pressure type unbonded prestressed anti-floating anchor rod Download PDFInfo
- Publication number
- CN215857681U CN215857681U CN202121888917.1U CN202121888917U CN215857681U CN 215857681 U CN215857681 U CN 215857681U CN 202121888917 U CN202121888917 U CN 202121888917U CN 215857681 U CN215857681 U CN 215857681U
- Authority
- CN
- China
- Prior art keywords
- central
- fixed end
- hole
- extrusion
- conical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a fixed end seepage-proofing structure of a pressure type unbonded prestressed anti-floating anchor rod, which comprises: the edge taper holes are uniformly arranged around the central taper hole of the bearing plate in an encircling manner, the small ends of the edge taper holes are arranged opposite to the small end of the central taper hole, and one end of the unbonded steel strand is arranged in the edge taper hole in a penetrating manner; the central boss is arranged on one side of the bearing plate; the sealing groove is annularly arranged at the root part of the central boss; the conical sealing sleeve is embedded in the side conical hole; the extrusion sleeve/extrusion spring is sleeved on the exposed part of the unbonded steel strand after one end of the unbonded steel strand passes through the side taper hole; one end of the unbonded steel strand penetrates through the extrusion sleeve/the extrusion spring, and the exposed part penetrates through the side through hole, so that the fixed pressing plate is pressed on the extrusion sleeve/the extrusion spring; wherein the conical sealing sleeve is matched with the edge conical hole to form a first seepage-proofing structure of the fixed end. Therefore, the base water can be well separated and prevented from permeating through the gap of the outer wall of the unbonded steel strand and the gap of the inner part of the wire diameter of the steel strand at the fixed end.
Description
Technical Field
The utility model relates to the field of pressure type prestressed anti-floating anchor rods, in particular to a pressure type unbonded prestressed anti-seepage anchor rod structure.
Background
With the fact that the world economy of the twenty-first century enters a high-speed development stage, particularly the development speed of the Chinese economy is more global leading, the national foundation construction is also improved in mechanism and technological innovation, the country draws the coming of the era of promoting the development of infrastructure, and the pressure type prestressed anti-floating anchor rod has established the important position in the field of building foundation engineering from the aspects of research, development, production, application and the like. The traditional anti-floating anchor rod is composed of a pressure type and a tension type, a base material adopts common deformed steel bar or finish-rolled deformed steel bar, and a steel strand is also adopted. Because the use standard of the prior anti-floating anchor rod is low, the corresponding defects are gradually exposed, such as: the shear fracture, dislocation, cracking, leakage and other safety accidents of the bearing beam of the building foundation caused by low anchoring pull-out resistance, poor anti-interference stability, weak anti-corrosion and anti-permeability performance and the like. Based on the technical requirements, the China departs from JGJ476-2019 'construction engineering anti-floating technical standard', wherein the design of the anchor rod provides corresponding requirements, and the technical requirements are made on the anti-pulling anchoring force, the length, the corrosion resistance and the impermeability of the anchoring anti-pulling force of different types of anti-floating anchor rods in different stratums.
Based on the huge demand of anti-floating anchor rod in the market, simultaneously belongs to the prestressing force technical category again, its main research and development content and key technology direction are as follows:
1. the anchoring withdrawal resistance and the anti-interference stability of the prestressed anchor rod anchoring body are improved: the anchor rod is characterized in that the most common and stable anchoring mode in the prestressed anchoring technology is adopted in the main structure design of the anchor rod, namely an extrusion sleeve is matched with an extrusion spring to be in a high-pressure extrusion occlusion mode, a rod body base material adopts UPS-15.2-1860-JG/T161-2016 unbonded steel stranded wires, and the anchoring performance of anchoring in an extrusion mode under the condition of not considering the concrete strength of a pile body meets the requirement of being more than or equal to 95% in GB/T14370-2015 and is far more than 2 times of the strength required by the anchor rod design. The non-adhesive steel strand is adopted, and under a stress structure, the anchoring anti-pulling force is large, the anti-interference stability is good, and meanwhile, the anti-corrosion problem of the bus is solved.
2. The problem of underground foundation water leakage through the anchor rod structure body or the crack of the joint of the concrete and the structure body is solved: the term 7.5.10 in the JGJ476-2019 standard has different requirements on the waterproof grade of the connecting part of the anchor rod and the underground basic structure, and three parts for forming leakage in the anchor rod structure:
1) the fixed end is the most important leakage point, because the outer protective layer (plastic sheath) of the steel strand needs to be removed at the extrusion meshing part of the extrusion sleeve and the steel strand, an exposed leakage point is formed at the end part, and underground water can seep from the twisted joint of the steel strand at the end part and the outer surface of the steel strand.
2) The second leak point is the junction of stock upper portion and building foundation position raft board or bottom plate, in the structural pattern promptly "stagnant water steel sheet position", the leak point of here mainly produces in the department that does not have bonding steel strand wires and pile body concrete, the mode of seepage is: the underground foundation water upwelles along the crack between the unbonded steel strand plastic outer sleeve and the concrete through corresponding water pressure.
3) The third seepage position is on the top of the anchor rod: the anchor backing plate is similar with the anchor position of ground tackle steel strand wires, and the top layer sheath need be got rid of because of the anchor needs equally to the outer plastic layer of unbonded steel strand wires similar, the anchor junction, consequently the leak source appears in this connecting portion.
In order to meet the requirement of the bolt anti-corrosion design in item 7.5.9 in the JGJ476-2019 standard, a design scheme of comprehensively considering leakage and corrosion resistance compatibility becomes a technical key when the bolt is initially designed and planned.
The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a fixed end seepage-proofing structure of a pressure type unbonded prestressed anti-floating anchor rod, which can well obstruct and prevent base water from seeping upwards through an outer wall gap of an unbonded steel strand and an inner gap of a steel strand twisted in the diameter direction.
In order to achieve the purpose, the utility model provides a fixed end seepage-proofing structure of a pressure type unbonded prestressed anti-floating anchor rod, wherein the pressure type unbonded prestressed anti-floating anchor rod comprises a plurality of unbonded steel stranded wires and a fixed end anchor assembly, and the fixed end anchor assembly comprises a bearing plate, a plurality of conical sealing sleeves, a plurality of extrusion sleeves/extrusion springs and a locking nut/fixed pressing plate; the bearing plate comprises a central taper hole, a plurality of edge taper holes, a central boss and a sealing groove; the plurality of side conical holes are uniformly arranged around the central conical hole in an encircling manner, the small ends of the side conical holes are arranged opposite to the small end of the central conical hole, and one ends of the plurality of unbonded steel stranded wires penetrate through the side conical holes; the central boss is arranged on one side of the bearing plate; the sealing groove is annularly arranged at the root part of the central boss; one part of the conical sealing sleeves are sleeved at one ends of the unbonded steel stranded wires and embedded in the side conical holes; the plurality of extrusion sleeves/extrusion springs are sleeved on the exposed parts of the plurality of unbonded steel stranded wires after one ends of the plurality of unbonded steel stranded wires penetrate through the plurality of side taper holes; the locking nut/fixed pressing plate comprises a central through hole and a plurality of side through holes, the position specifications of the central through hole and the side through holes are matched with those of the central taper hole and the side taper holes, and the exposed parts of one ends of the plurality of unbonded steel stranded wires after penetrating through the extrusion sleeves/extrusion springs penetrate through the side through holes so that the fixed pressing plate is pressed on the extrusion sleeves/extrusion springs; wherein the conical sealing sleeve is matched with the edge conical hole to form a first seepage-proofing structure of the fixed end.
In a preferred embodiment, the fixed end anchor assembly further comprises a center grout tube, a locking nut/gasket, a fixed end seal ring, and a fixed end anchor seal cap; the two ends of the central grouting pipe are provided with external threads, one end of the central grouting pipe penetrates through the central through hole of the fixed pressing plate after penetrating through the large end of the central conical hole, and one of the plurality of conical sealing sleeves is sleeved in and embedded in the central conical hole from the other end of the central grouting pipe; the locking nut/gasket is locked at the other end of the central grouting pipe, and a conical sealing sleeve is pressed in the central conical hole; one locking nut of the locking nut/fixed pressing plate is locked at one end of the central grouting pipe, so that the fixed pressing plate presses the plurality of extrusion sleeves/extrusion springs and presses one part of the plurality of conical sealing sleeves in the plurality of side conical holes; the fixed end sealing ring is arranged in the sealing groove of the bearing plate; the fixed end anchorage device sealing cover is of a bowl-shaped structure, the center of the bottom of the bowl-shaped structure comprises a central hole, the central hole is sleeved on a part of one end of the central grouting pipe, which is exposed out of one locking nut of the locking nut/the fixed pressing plate, and the bowl opening of the bowl-shaped structure is sleeved on the central boss of the bearing plate and is pressed on the fixed end sealing ring; wherein the other locking nut of the locking nut/fixed pressing plate is locked on the part of one end of the central grouting pipe, which is exposed out of the central hole of the fixed end anchor sealing cover, so that the fixed end anchor sealing cover is tightly pressed on the fixed end sealing ring; wherein the conical sealing sleeve is matched with the central conical hole and the fixed end anchorage device sealing cover is matched with the fixed end sealing ring to form a second anti-seepage structure of the fixed end.
In a preferred embodiment, the bearing plate further comprises a plurality of bracket mounting holes uniformly annularly arranged at the edge of the bearing plate and annularly arranged at the periphery of the plurality of edge taper holes, and the fixed end anchor assembly further comprises a guide bracket and a plurality of extrusion tubes/extrusion springs; the guide support comprises a plurality of guide support rods, a guide support restraint ring and a plurality of extrusion pipes/extrusion springs; one end of each guide supporting rod is provided with an external thread; the other ends of the guide support rods are bent inwards by an angle and then are fixedly arranged in the guide frame restraint ring; a plurality of extrusion pipes/extrusion springs are sleeved at one end of the plurality of guide supporting rods; after the external threads at one end of the guide support rods penetrate through the support mounting holes of the bearing plate, the extrusion pipes/extrusion springs are attached to and pressed against the bearing plate through nut locking, and meanwhile the extrusion pipes/extrusion springs are locked at one end of the guide support rods.
In a preferred embodiment, the fixed end anchor assembly further comprises a protective medium filled within the fixed end anchor seal housing.
In a preferred embodiment, the fixed end anti-seepage structure of the pressure type unbonded prestressed anti-floating anchor rod further comprises a spiral rib which is wound outside the plurality of unbonded steel stranded wires at the fixed end anchor assembly.
Compared with the prior art, the fixed end seepage-proofing structure of the pressure type unbonded prestressed anti-floating anchor rod has the following beneficial effects: the scheme adopts an integral protective cover form and a structure form sealed by the conical sealing ring at the fixed end, so that the base water can be well prevented from seeping upwards through the gap of the outer wall of the unbonded steel stranded wire and the inner gap of the wire diameter stranded steel stranded wire; the guide support is arranged on the bearing plate, so that the guide performance and the bearing capacity are improved, and the difficulty of installation and construction is reduced; the structural form of the designed fixed end can be assembled into a sectional bearing structural form at will, so that the application range of the design is wider; the structural form of the designed fixed end can adapt to the change of the number of the steel strands from 1 to N, and the application occasion is more comprehensive.
Drawings
Fig. 1a to 1c are schematic structural views of a tensioned anchoring end, a middle section and a fixed end of an impermeable anchor rod structure according to an embodiment of the utility model;
FIG. 2 is a partially enlarged schematic view of a fixed end according to an embodiment of the present invention;
FIG. 3 is a schematic view of a fixed end carrier seal structure according to an embodiment of the utility model;
FIG. 4 is an enlarged, fragmentary schematic view of a fixed end carrier seal structure according to an embodiment of the utility model;
FIG. 5 is a schematic front view of a guide bracket according to an embodiment of the utility model;
FIG. 6 is a side schematic view of a guide bracket according to an embodiment of the utility model;
FIG. 7 is a schematic sectional front view of a carrier plate according to an embodiment of the present invention;
FIG. 8 is a schematic side view of a carrier plate according to an embodiment of the utility model;
FIG. 9 is a schematic cross-sectional front view of a fixed end anchor seal cap according to an embodiment of the present invention;
FIG. 10 is a side view of a fixed end anchor seal cap according to an embodiment of the present invention;
FIG. 11 is a schematic front view of a locking nut/stationary platen according to an embodiment of the present invention;
FIG. 12 is a side cross-sectional schematic view of a locking nut/stationary platen according to an embodiment of the present invention;
FIG. 13 is a schematic front view of a fixed end gasket in accordance with an embodiment of the utility model;
FIG. 14 is a side cross-sectional schematic view of a fixed end gasket in accordance with an embodiment of the present invention;
FIG. 15 is a schematic cross-sectional front view of a fixed end anchor squeeze sleeve according to an embodiment of the present invention;
FIG. 16 is a side view of a fixed end anchor squeeze sleeve according to an embodiment of the present invention;
FIG. 17 is a schematic front view of a fixed end anchor compression spring according to an embodiment of the present invention;
FIG. 18 is a side schematic view of a fixed end anchor compression spring according to an embodiment of the present invention;
FIG. 19 is a schematic front view of a center slip pipe according to an embodiment of the present invention;
FIG. 20 is a schematic side view of a center grout tube according to an embodiment of the present invention;
figure 21 is a schematic cross-sectional front view of a conical sealing sleeve according to an embodiment of the utility model;
FIG. 22 is a side schematic view of a conical sealing sleeve according to an embodiment of the utility model;
fig. 23 is a schematic structural view of a straight ribbed spiral rib according to an embodiment of the present invention.
Description of the main reference numerals:
1-guide frame restraint ring, 2-guide support, 201-guide support rod, 3-center grouting pipe, 4-fixed end anchorage sealing cover, 401-fixed end sealing ring, 402-center hole, 5-protective medium, 6-extrusion sleeve/extrusion spring, 7-extrusion pipe/extrusion spring, 8-bearing plate, 801-center taper hole, 802-side taper hole, 803-support mounting hole, 804-center boss, 805-sealing groove, 9-nut, 10-unbonded steel strand, 11-locking nut/fixed pressure plate, 12-fixed end sealing gasket, 13-tapered sealing sleeve, 14-locking nut/gasket, 15-fixed end spiral rib, and 16-steel strand center restraint ring.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
As shown in fig. 1a to 4, a fixed end seepage prevention structure of a pressure type unbonded prestressed anti-floating anchor according to a preferred embodiment of the present invention comprises a plurality of unbonded steel strands 10, a plurality of steel strand central restraining rings 16, and a fixed end anchor assembly. A plurality of unbonded steel strands 10 are parallel to each other to form a wire bundle, and an outer protective layer wraps the outside of each unbonded steel strand 10. A plurality of steel strand central constraining rings 16 are wound around the wire bundle at intervals. The fixed end anchor assembly is disposed at one end of the wire harness.
Referring in detail to FIG. 4, in some embodiments, the fixed end anchor assembly includes a bearing plate 8, a plurality of tapered sealing sleeves 13, a plurality of compression sleeves/compression springs 6, and a locking nut/fixed platen 11.
Referring to fig. 7 and 8, in some embodiments, the carrier plate 8 includes a central tapered hole 801, a plurality of side tapered holes 802, a central boss 804, and a sealing groove 805. The plurality of side taper holes 802 are uniformly arranged around the central taper hole 801 in an encircling manner, the small ends of the plurality of side taper holes 802 are arranged opposite to the small end of the central taper hole 801, and one end of the plurality of unbonded steel strands 10 penetrates through the plurality of side taper holes 802. In the present embodiment, the taper of the central taper hole 801 and the side taper hole 802 is 14 °, and the depth of the central taper hole 801 and the side taper hole 802 is preferably at least 2mm of the large end of the tapered sealing sleeve 13 exposed outside. The number of the tapered holes 802 is six in the embodiment, but the utility model is not limited thereto. The central boss 804 is disposed on one side of the carrier plate 8, and the diameter of the central boss 804 is phi 97 (-0) in this embodiment0..2 1) mm. A sealing groove 805 is provided around the root of the central boss 804. One part of the conical sealing sleeves 13 is sleeved at one end of the plurality of unbonded steel stranded wires 10, and the conical sealing sleeves 13 are embedded in the plurality of side conical holes 802.
As shown in fig. 15-18, and with reference to fig. 4, 7 and 8, in some embodiments, a plurality of compression sleeves/springs 6 are disposed around the exposed portion of one end of the plurality of unbonded steel strands 10 after passing through the plurality of tapered bores 802. The fixed pressing plate comprises a central through hole and a plurality of side through holes, the central through hole is matched with the central taper hole in position specification 802, and the exposed part of one end of each of the plurality of unbonded steel stranded wires 10 after penetrating through the extrusion sleeve/extrusion spring 6 penetrates through the side through holes to enable the fixed pressing plate to be pressed on the extrusion sleeves/extrusion springs 6.
As shown in fig. 11-12 and 19-22, and with simultaneous reference to fig. 4, in some embodiments, the fixed end anchor assembly further comprises a center grout tube 3, a locking nut/washer 14, a fixed end seal ring 401, and a fixed end anchor seal cap 4. Both ends of the central grouting pipe 3 are provided with external threads, one end of the central grouting pipe 3 penetrates through the central through hole of the fixed pressure plate after penetrating through the large end of the central conical hole 801, and one of the plurality of conical sealing sleeves 13 is sleeved in and embedded in the central conical hole 801 from the other end of the central grouting pipe 3. A locking nut/washer 14 locks onto the other end of the central slip pipe 3 and presses a conical gland 13 into the central bore 801. Wherein one locking nut of the locking nut/stationary platen 11 is locked at one end of the central injection pipe 3, so that the stationary platen compresses the plurality of pressing sleeves/pressing springs 6 and compresses a portion of the plurality of tapered sealing sleeves 13 within the plurality of side tapered holes 802. The fixed end sealing ring 401 is disposed in the sealing groove 805 of the bearing plate 8, and the fixed end sealing ring 401 of this embodiment is an O-ring, but the utility model is not limited thereto. Wherein the extrusion spring in the extrusion cover/extrusion spring 6 of this application adopts the high rigidity pressure spring, and the extrusion spring is extruded into the disintegrating slag under the pressure effect, and the disintegrating slag is full of between the extrusion cover and the unbonded steel strand wires 10 of getting rid of the outer protective layer, makes extrusion cover/extrusion spring 6 and the unbonded steel strand wires 10 of getting rid of the outer protective layer firmly link together.
As shown in fig. 9 to 10 and 13 to 14, and referring to fig. 4, in some embodiments, the stationary end anchor seal cover 4 is a bowl-shaped structure, the bottom center of the bowl-shaped structure includes a central hole 402, the central hole 402 is sleeved on a portion of one end of the central grouting pipe 3 exposed out of one locking nut of the locking nut/stationary platen 11, and the bowl mouth of the bowl-shaped structure is sleeved on the central boss 804 of the bearing plate 8 and pressed on the stationary end seal ring 401. Wherein the other locking nut of the locking nut/fixing pressure plate 11 is locked on the part of one end of the central grouting pipe 3 exposed out of the central hole 402 of the fixed end anchor sealing cover 4, so that the fixed end anchor sealing cover 4 is pressed on the fixed end sealing ring 401. The conical sealing sleeve 13, the fixed end sealing ring 401 and the fixed end anchor sealing cover 4 are matched together to form a sealing structure at the fixed end, so that the upward seepage of the base water through the gap between the outer wall of the unbonded steel strand 10 and the inner gap formed by twisting the wire diameter of the steel strand can be effectively prevented. Additionally, the anchor seal cap 4 may be filled with a protective medium 5 (such as, but not limited to, grease, etc.) for corrosion protection of the components therein.
As shown in fig. 5 to 6, referring to fig. 2 and 3, in some embodiments, the bearing plate 8 further includes a plurality of bracket mounting holes 803 uniformly formed around the edge of the bearing plate 8, the plurality of bracket mounting holes 803 are formed around the periphery of the plurality of side cone holes 802, the fixed end anchor assembly further includes a guide bracket 2, and the guide bracket 2 includes a plurality of guide struts 201, a guide bracket restraining ring 1, and a plurality of pressing tubes/pressing springs 7. One end of each guide strut 201 is provided with an external thread. The other ends of the guide support rods 201 are bent inwards by an angle and then are fixedly arranged in the guide frame restraint ring 1. A plurality of pressing tubes/pressing springs 7 are fitted around one end of the plurality of guide support rods 201. After the external threads at one end of the guide support rods 201 penetrate through the support mounting holes 803 of the bearing plate 8, the extrusion tubes/extrusion springs 7 are tightly attached to the bearing plate 8 through nut locking, and the extrusion tubes/extrusion springs 7 are locked at one end of the guide support rods 201.
As shown in fig. 23, referring to fig. 2 and 3, in some embodiments, the fixed end impermeable structure of the pressure type unbonded prestressed anti-floating anchor rod further includes a fixed end spiral rib 15 wound around the plurality of unbonded steel strands 10 at the fixed end anchor assembly, and the fixed end spiral rib 15 may be used to reinforce the connection and support with concrete.
In some embodiments, although the present embodiment is described by way of example with unbonded steel strands, the watertight steel sheet impermeable structure of the present invention is also applicable to the use of, for example, but not limited to, slow-bonding steel strands.
In conclusion, the fixed end seepage-proofing structure of the pressure type unbonded prestressed anti-floating anchor rod has the following advantages: the scheme adopts an integral protection cover form and a structure form of conical sealing ring sealing at the fixed end, adopts a metal pressing pipe pressing and sealing form at the water stop plate part and adopts a sealing form of water swelling rubber and a sealing cover at the anchoring end, and the sealing forms can well separate and prevent the base water from permeating through the gap of the outer wall of the unbonded steel stranded wire and the inner gap of the wire diameter twisting of the steel stranded wire; the guide support is arranged on the bearing plate, so that the guide performance and the bearing capacity are improved, and the difficulty of installation and construction is reduced; the structural form of the designed fixed end can be assembled into a sectional bearing structural form at will, so that the application range of the design is wider; the structural form of the designed fixed end can adapt to the change of the number of the steel strands from 1 to N, and the application occasion is more comprehensive.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the utility model and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the utility model and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the utility model be defined by the claims and their equivalents.
Claims (5)
1. The utility model provides a pressure type unbonded prestressing force anti-floating anchor's stiff end seepage prevention structure, pressure type unbonded prestressing force anti-floating anchor includes many unbonded steel strand wires and stiff end ground tackle subassembly, its characterized in that, stiff end ground tackle group includes:
a carrier plate, comprising:
a central taper hole;
the edge taper holes are uniformly arranged around the central taper hole in an encircling manner, the small ends of the edge taper holes are arranged opposite to the small end of the central taper hole, and one ends of the unbonded steel strands are arranged in the edge taper holes in a penetrating manner;
the central boss is arranged on one side of the bearing plate; and
the sealing groove is annularly arranged at the root part of the central boss;
a plurality of conical sealing sleeves, wherein one part of the conical sealing sleeves are sleeved at one ends of the plurality of unbonded steel stranded wires and embedded in the plurality of side conical holes;
the extrusion sleeves/extrusion springs are sleeved on the exposed parts of the plurality of unbonded steel stranded wires after one ends of the plurality of unbonded steel stranded wires penetrate through the plurality of side taper holes; and
the fixed pressing plate comprises a central through hole and a plurality of side through holes, the position specifications of the central through hole and the side through holes are matched with those of the central taper hole and the side taper holes, and the exposed parts of one ends of the plurality of unbonded steel strands after penetrating through the extrusion sleeves/extrusion springs penetrate through the side through holes so that the fixed pressing plate is pressed on the extrusion sleeves/extrusion springs;
the conical sealing sleeve is matched with the edge conical hole to form a first anti-seepage structure of the fixed end.
2. The fixed end seepage prevention structure of the pressure type unbonded prestressed anti-floating anchor rod of claim 1, wherein the fixed end anchor assembly further comprises:
the two ends of the central grouting pipe are provided with external threads, one end of the central grouting pipe penetrates through the central through hole of the fixed pressing plate after penetrating through the large end of the central conical hole, and one of the plurality of conical sealing sleeves is sleeved in and embedded in the central conical hole from the other end of the central grouting pipe;
the locking nut/gasket is locked at the other end of the central grouting pipe, and presses one conical sealing sleeve in the central conical hole;
one locking nut of the locking nuts/fixed pressing plates is locked at one end of the central grouting pipe, so that the fixed pressing plates press the plurality of extrusion sleeves/extrusion springs and press a part of the plurality of conical sealing sleeves in the plurality of side conical holes;
the fixed end sealing ring is arranged in the sealing groove of the bearing plate; and
the fixed end anchorage device sealing cover is of a bowl-shaped structure, the center of the bottom of the bowl-shaped structure comprises a central hole, the central hole is sleeved on a part, exposed out of one locking nut of the locking nut/fixing pressing plate, of one end of the central grouting pipe, and a bowl opening of the bowl-shaped structure is sleeved on the central boss of the bearing plate and is pressed on the fixed end sealing ring;
wherein the other locking nut of the locking nut/fixed pressing plate is locked on the part of one end of the central grouting pipe, which is exposed out of the central hole of the fixed end anchor sealing cover, so that the fixed end anchor sealing cover is pressed on the fixed end sealing ring;
the conical sealing sleeve is matched with the central conical hole and the fixed end anchorage device sealing cover is matched with the fixed end sealing ring to form a second seepage-proofing structure of the fixed end.
3. The fixed end impermeable structure of a pressure type unbonded prestressed anti-floating anchor bar of claim 1, wherein said bearing plate further comprises a plurality of bracket mounting holes uniformly formed around the edge of said bearing plate and around the periphery of said plurality of side cone holes, said fixed end anchor assembly further comprising:
a guide bracket, comprising:
the guide support rods are arranged on the outer side of the base, and one end of each guide support rod is provided with an external thread; and
the other ends of the guide support rods are bent inwards by an angle and then are fixedly arranged in the guide frame restraining ring; and
a plurality of pressing tubes/pressing springs which are sleeved at one end of the plurality of guide supporting rods;
after the external threads at one end of the guide support rods penetrate through the support mounting holes of the bearing plate, the extrusion pipes/extrusion springs are attached to and pressed against the bearing plate through nut locking, and meanwhile the extrusion pipes/extrusion springs are locked at one end of the guide support rods.
4. The fixed end seepage prevention structure of the pressure type unbonded prestressed anti-floating anchor rod of claim 2, wherein the fixed end anchor assembly further comprises a protective medium filled in the fixed end anchor sealing cover.
5. The fixed end seepage prevention structure of the pressure type unbonded prestressed anti-floating anchor rod of claim 1, further comprising a spiral rib wound outside the plurality of unbonded steel strands at the fixed end anchor assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121888917.1U CN215857681U (en) | 2021-08-12 | 2021-08-12 | Fixed end seepage-proofing structure of pressure type unbonded prestressed anti-floating anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121888917.1U CN215857681U (en) | 2021-08-12 | 2021-08-12 | Fixed end seepage-proofing structure of pressure type unbonded prestressed anti-floating anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215857681U true CN215857681U (en) | 2022-02-18 |
Family
ID=80328356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121888917.1U Active CN215857681U (en) | 2021-08-12 | 2021-08-12 | Fixed end seepage-proofing structure of pressure type unbonded prestressed anti-floating anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215857681U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116043841A (en) * | 2023-01-31 | 2023-05-02 | 浙江中桥预应力设备有限公司 | Pressure-type clip fast self-locking anti-corrosion anti-seepage prestressed anti-floating anchor rod anchoring carrier |
-
2021
- 2021-08-12 CN CN202121888917.1U patent/CN215857681U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116043841A (en) * | 2023-01-31 | 2023-05-02 | 浙江中桥预应力设备有限公司 | Pressure-type clip fast self-locking anti-corrosion anti-seepage prestressed anti-floating anchor rod anchoring carrier |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113529708A (en) | Pressure type unbonded prestressed anti-seepage and anti-floating anchor structure | |
| CN114561946B (en) | Anti-corrosion and anti-seepage anchor structure for new buildings | |
| CN202450444U (en) | Cross-ear type steel-strand stay cable anchor | |
| CN215857681U (en) | Fixed end seepage-proofing structure of pressure type unbonded prestressed anti-floating anchor rod | |
| CN215715263U (en) | Tension anchoring end structure of pressure type prestress anti-floating anchor rod | |
| CN113123332A (en) | Post-tensioned slow-setting main reinforcement pressure type uplift action pile and preparation method thereof | |
| CN215715261U (en) | Pressure type unbonded prestress anti-seepage anti-floating anchor rod structure | |
| CN215715259U (en) | Pressure type unbonded prestressed anti-floating anchor rod water-stop steel plate seepage-proofing structure | |
| CN218175820U (en) | A reinforcing bar conversion connector and concrete connection structure for precast pile head | |
| CN217027070U (en) | Water-stop corrosion-resistant anti-floating anchor rod | |
| CN114541382A (en) | Anticorrosive impervious subsides formula anchor backing plate stock structure for building | |
| CN218060295U (en) | Novel anticorrosive impervious stock structure for building | |
| CN215715262U (en) | Pressure type unbonded prestressed anti-seepage structure for tensioning anchoring end of anti-floating anchor rod | |
| CN215561851U (en) | Bridge suspender and stay cable waterproof device | |
| CN216713019U (en) | Anticorrosive impervious subsides formula anchor backing plate | |
| CN217053489U (en) | Sealing structure, single-stage anti-floating anchor rod and multi-stage anti-floating anchor rod | |
| CN116479875B (en) | Pressure molded line pole stretch-draw anchor formula is anticorrosive impervious prestressing force anti-floating stock for building | |
| CN219218985U (en) | Anti-corrosion and anti-seepage sedimentation type anchor backing plate anchor rod structure for building | |
| CN216973118U (en) | Waterproof cable saddle | |
| CN116950059A (en) | Non-prestress waterproof anti-floating anchor rod | |
| CN215214293U (en) | Stud combined structure | |
| CN115142410A (en) | An assembled anti-floating anchor rod | |
| CN212316913U (en) | Supporting body anchor rod and supporting body anchor rod with bag | |
| CN114411818A (en) | Sealing structure, single-stage anti-floating anchor rod and multi-stage anti-floating anchor rod | |
| CN221372278U (en) | Waterproof component for connection of anti-floating anchor rod and bottom plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |