CN218204358U - Prefabricated square quick concatenation formula pressure dispersion type stock - Google Patents
Prefabricated square quick concatenation formula pressure dispersion type stock Download PDFInfo
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- CN218204358U CN218204358U CN202221719656.5U CN202221719656U CN218204358U CN 218204358 U CN218204358 U CN 218204358U CN 202221719656 U CN202221719656 U CN 202221719656U CN 218204358 U CN218204358 U CN 218204358U
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- square
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- rod body
- bearing plate
- prefabricated
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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
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
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- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to a prefabricated square quick splicing type pressure dispersion anchor rod, which comprises a square prefabricated rod body component, an unbonded steel strand, grouting materials, a tip bearing plate, a middle bearing plate, an outer side quick-setting grouting body and a slope surface; the bottom of the square prefabricated rod body component is provided with an end bearing plate, the middle of the square prefabricated rod body component is provided with one to three middle bearing plates, the top of the square prefabricated rod body component is provided with an anchor head, and an unbonded steel strand is arranged in the square prefabricated rod body component; the unbonded steel stranded wire is provided with an isolation sleeve and is respectively connected with the end bearing plate and the middle bearing plate; the outer side quick setting grouting body is used for grouting in a stable rock stratum and a stable soil layer; the slope surface of the side slope and the square prefabricated rod body component can form any angle. The utility model has the advantages that: the construction is convenient; can exert most of intensity in a short time; the threshold of the construction equipment is low; compare conventional stock, the atress is more reasonable, can greatly reduce stress concentration through the design, and factor of safety is higher.
Description
Technical Field
The utility model belongs to the technical field of side slope and foundation ditch engineering, concretely relates to prefabricated square quick concatenation formula pressure dispersion type stock.
Background
The form used in the prior art of the anchor rod is generally a tension type anchor rod.
The tension type anchor rod accumulates a large amount of construction and design experiences and cases in China, and is relatively cheap. However, the anchor bolt grouting body is mainly controlled by tension, and the axial force of the anchor bolt is reduced to zero along the depth of the anchor bolt theoretically because the material properties of the anchor bolt and the grouting body are inconsistent. According to experiments and a large amount of engineering practical experience, the practice of the tension type anchor rod commonly used at present can cause serious stress concentration.
In the pressure type anchor rod, the bonding force outside the anchor rod is treated to be zero, so that the axial force of the full section of the anchoring section is theoretically consistent, and the problem of stress concentration of the anchor rod is reduced. However, according to experiments and engineering practices, the problem of stress concentration still exists, and the construction speed is low.
In summary, the current general bolt form causes serious stress concentration problem and slow construction speed of the bolt.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a prefabricated square quick concatenation formula pressure dispersion type stock according to above-mentioned prior art's weak point, this stock system combines the mode of outside rapid hardening slip casting body through adopting square prefabricated body of rod component to reach and improve the security, accelerate construction speed, exert the purpose of stock effect rapidly.
The utility model discloses the purpose is realized accomplishing by following technical scheme:
a prefabricated square quick splicing type pressure dispersion anchor rod is characterized in that the method for prefabricating the square quick splicing type pressure dispersion anchor rod comprises a square prefabricated rod body component, an unbonded steel strand, a grouting material, an end bearing plate, a middle bearing plate, an outer side quick-setting grouting body and a slope surface;
the bottom of the square prefabricated rod body component is provided with an end bearing plate, the middle of the square prefabricated rod body component is provided with one to three middle bearing plates, the top of the square prefabricated rod body component is provided with an anchor head, and an unbonded steel strand is arranged in the square prefabricated rod body component;
the unbonded steel stranded wire has no interaction with the grouting material and is respectively connected with the end bearing plate and the middle bearing plate;
the outer side quick setting grouting body is used for grouting in rock strata and soil layers, and the pouring length can be adjusted according to the actual engineering condition;
the slope surface of the side slope and the square prefabricated rod body component can form any angle;
the unbonded steel strand can adopt structures of 1 × 2, 1 × 3I, 1 × 7I, (1 × 7) C, 1 × 19S, 1 × 19W and the like;
the unbonded steel strand can adopt standard steel strands, indented steel strands, die-drawn steel strands and the like;
the grouting material can adopt strength indexes such as C20, C25, C30, C35 and the like.
The application method of the prefabricated square quick splicing type pressure dispersion anchor rod at least comprises the following steps:
1) Leveling a construction site, and releasing a real sample according to a construction drawing;
2) After the square prefabricated rod body components are finished in the field, the square prefabricated rod body components are fed into the field in batches for acceptance and are stacked to a position convenient for construction;
3) Starting a machine, and pressing the pile at the lofting position;
4) Performing outside quick setting grouting;
5) And (6) tensioning and locking.
The utility model has the advantages that the pressure dispersion type anchor rod is adopted to combine the square prefabricated rod body component and the rapid hardening grouting mode, thereby greatly reducing the stress concentration and improving the safety; the construction flow is simple and quick; the strength can be formed in a short time after construction, and the acting speed for slope protection is high.
Drawings
FIG. 1 is a schematic view of a prefabricated square quick splicing type pressure-dispersing anchor rod
1 square prefabricated rod body component 2 end bearing plate 3 middle bearing plate 4 non-adhesive steel strand 5 outside rapid hardening grouting body 6 anchor head 7 side slope surface
FIG. 2 is an end bearing plate
8 outside slip casting pipe
FIG. 3 shows a middle carrier plate
Angle steel for 9 splicing
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Examples
As shown in fig. 1, the method for prefabricating a square quick splicing type pressure dispersion anchor rod comprises the steps of prefabricating 1 a square rod body component, 2 an end bearing plate 3, a middle bearing plate 4 of a middle bearing plate 3, unbonded steel stranded wires 5, outside quick-setting grouting bodies 6, an anchor head 7 and outside grouting pipes of a slope surface 8. The bottom of the square prefabricated rod body component is provided with an end bearing plate, the middle of the square prefabricated rod body component is provided with one to three middle bearing plates, the top of the square prefabricated rod body component is provided with an anchor head, and an unbonded steel strand is arranged in the square prefabricated rod body component; the unbonded steel stranded wire has no interaction with the grouting material and is respectively connected with the end bearing plate and the middle bearing plate; the outer side quick setting grouting body is used for grouting in a stable rock stratum and a soil layer, and the pouring length can be adjusted according to the actual engineering condition; the slope surface of the side slope and the square prefabricated rod body component can form any angle; the unbonded steel strand can adopt structures of 1 × 2, 1 × 3I, 1 × 7I, (1 × 7) C, 1 × 19S, 1 × 19W and the like; the unbonded steel strand can adopt standard steel strands, indented steel strands, die-drawn steel strands and the like; the grouting material can adopt strength indexes such as C20, C25, C30 and C35.
The utility model relates to a way of prefabricated square quick concatenation formula pressure dispersion type stock, its concrete step is:
1) Leveling a construction site, and releasing a real sample according to a construction drawing;
2) After the square prefabricated rod body components are finished in the field, the square prefabricated rod body components are fed into the field in batches for acceptance and are stacked to a position convenient for construction;
3) Starting a machine, and pressing the pile at the lofting position;
4) If a plurality of sections of prefabricated rod body components exist, welding angle steel for splicing, and continuously pressing the pile;
5) Performing outside quick setting grouting;
6) And (6) tensioning and locking.
Claims (4)
1. A prefabricated square quick splicing type pressure dispersion anchor rod comprises a square prefabricated rod body component, an unbonded steel strand, a grouting material, an end bearing plate, a middle bearing plate, an outer side quick-setting grouting body and a slope surface; the square prefabricated rod body component is characterized in that the bottom of the square prefabricated rod body component is provided with an end bearing plate, the middle of the square prefabricated rod body component is provided with one to three middle bearing plates, the top of the square prefabricated rod body component is provided with an anchor head, and an unbonded steel strand is arranged in the anchor head.
2. The prefabricated square quick splicing type pressure dispersion anchor rod according to claim 1, wherein the unbonded steel strand is provided with an isolation sleeve, has no interaction with grouting materials, and is sequentially and respectively connected with the end bearing plate and the middle bearing plate.
3. The prefabricated square quick-splicing type pressure dispersion anchor rod according to claim 1, wherein the outside quick-setting grouting body is used for grouting in rock strata and soil layers, and the pouring length can be adjusted according to the actual engineering condition.
4. The prefabricated square quick splicing type pressure dispersing anchor rod of claim 1, wherein the slope surface of the side slope and the square prefabricated rod body component can form any angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221719656.5U CN218204358U (en) | 2022-07-06 | 2022-07-06 | Prefabricated square quick concatenation formula pressure dispersion type stock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221719656.5U CN218204358U (en) | 2022-07-06 | 2022-07-06 | Prefabricated square quick concatenation formula pressure dispersion type stock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218204358U true CN218204358U (en) | 2023-01-03 |
Family
ID=84647705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221719656.5U Active CN218204358U (en) | 2022-07-06 | 2022-07-06 | Prefabricated square quick concatenation formula pressure dispersion type stock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218204358U (en) |
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2022
- 2022-07-06 CN CN202221719656.5U patent/CN218204358U/en active Active
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