Anti-pulling anchor rod used in argillaceous rock stratum

Abstract

The utility model belongs to the technical field of building construction equipment, and particularly relates to an anti-pulling anchor rod used in an argillaceous rock stratum, which comprises an anchor rod body, a plurality of mounting grooves are arranged outside the anchor rod body, grouting holes are arranged inside the anchor rod body, anti-pulling reinforcing steel bars are respectively and fixedly connected inside the plurality of mounting grooves, and the grouting holes are communicated with the anti-pulling reinforcing steel bars. Two positioning rings are fixedly connected to the exteriors of the multiple anti-pulling steel bars, supporting blocks are fixedly connected to the left sides and the right sides of the two positioning rings correspondingly, a slurry supporting plug is arranged on the exterior of the anchor rod body, and positioning assemblies are fixedly connected to the upper end and the lower end of the anchor rod body correspondingly. By arranging the anchor rod body, the mounting groove, the grouting hole, the anti-pulling steel bar, the positioning ring, the supporting block and the slurry supporting plug, the correct position of the anti-pulling steel bar in the anchor rod body is ensured, the overall stability of the anchor rod is improved, the anchor rod can be kept balanced when being stressed, and deformation or damage caused by uneven stress is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building construction equipment, specifically is a kind of anti-pulling anchor rod in argillaceous rock stratum. BACKGROUND

[0002] The application of underground space is more and more extensive, and most underground buildings are affected by the buoyancy of underground water, so effective measures are needed to resist this buoyancy. Construction anti-pulling anchor rod is a commonly used method in the current construction industry, which has been widely applied and promoted due to its high pulling force, economy, environmental protection and non-space occupation. The hole-forming speed of the pulling anchor rod is fast, and the construction operation surface requirement is not high, which has little effect on other construction procedures and period.

[0003] The prior art has the following defects or problems: the prior art with publication number CN219930956U discloses an anti-pulling anchor rod in argillaceous rock stratum, the anchoring section of the anti-pulling anchor rod is inserted into a vertical drill hole below the ground, the upper end of the drill hole outside is butt-jointed into the bottom plate on the ground, and the drill hole is grouted and solidified to form an anchor pile with the anchoring section of the anti-pulling anchor rod. The anti-pulling anchor rod includes a plurality of positioning rings located at the coaxial center of the anchoring section, the positioning rings are symmetrically distributed at their axial centers, a plurality of positioning grooves and separation grooves are formed, the positioning grooves of the plurality of positioning rings are aligned to form a plurality of positioning channels in the anchoring section, the anti-pulling steel bars are placed in the positioning channels, the anti-pulling steel bars are fastened with the stirrups and the positioning rings, and the upper end of the anti-pulling steel bars outside the anchoring section constitutes the butt-joint section. The utility model has high grouting density, small fissure water influence, high pulling force of the anchor rod and accurate positioning.

[0004] The above-mentioned device is difficult to guarantee the grouting density during use, resulting in cavities or uneven phenomena during grouting, and insufficient grouting density will affect the overall stability and pulling performance of the anchor rod. However, in the prior art, some anti-pulling anchor rods are prone to inaccurate positioning of the anchor rod during drilling and installation in argillaceous rock stratum due to the unevenness and hardness variation of the rock stratum, which will affect the stress distribution and overall stability of the anchor rod.

[0005] It should be noted that the above content belongs to the technical cognition range of the inventor and does not necessarily constitute prior art. UTILITY MODEL CONTENT

[0006] In view of the deficiencies of the prior art, the utility model provides an anti-pulling anchor rod in argillaceous rock stratum, which solves the existing problems.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of anti-pulling anchor rod in argillaceous rock stratum, including anchor rod body, the outside of the anchor rod body is equipped with multiple installation grooves, the inside of the anchor rod body is equipped with grouting hole, the inside of multiple installation grooves is respectively fixedly connected with anti-pulling reinforcement, the outside of multiple anti-pulling reinforcements is fixedly connected with two positioning rings, the left and right sides of two positioning rings are respectively fixedly connected with support block, the outside of the anchor rod body is provided with grout plug, the upper and lower ends of the anchor rod body are respectively fixedly connected with positioning assembly.

[0008] As a preferred technical scheme of the utility model, the positioning assembly includes fixed backing plate and anchor head, the top of the fixed backing plate is fixedly connected with multiple fixed pegs, the bottom of the anchor head is fixedly connected with multiple positioning blocks.

[0009] As a preferred technical scheme of the utility model, the similar side of multiple anti-pulling reinforcements is respectively fixedly connected on the outside of anchor rod body, and the far side of multiple anti-pulling reinforcements is respectively fixedly connected on the inner wall of two positioning rings.

[0010] As a preferred technical scheme of the utility model, the similar side of two support blocks is respectively fixedly connected on the left and right sides of the positioning ring.

[0011] As a preferred technical scheme of the utility model, the inner wall of the grout plug is in contact with the outside of the anchor rod body, and the inner wall of the grout plug is slidably connected on the far side of multiple anti-pulling reinforcements.

[0012] As a preferred technical scheme of the utility model, the inside of the fixed backing plate is fixedly connected on the top of the anchor rod body, and the outside of multiple fixed pegs is respectively fixedly connected on the inner wall of the top of the fixed backing plate.

[0013] As a preferred technical scheme of the utility model, the inner wall of the top of the anchor head is fixedly connected on the bottom of the anchor rod body, and the similar side of multiple positioning blocks is respectively fixedly connected on the bottom of the anchor head.

[0014] Compared with the prior art, the utility model provides a kind of anti-pulling anchor rod in argillaceous rock stratum, with the following beneficial effects:

[0015] 1. A kind of anti-pulling anchor rod in argillaceous rock formation, by setting anchor rod body, installation slot, grouting hole, anti-pulling reinforcement, positioning ring, support block, support grout plug, the anchoring section of anchor rod body is inserted into drill hole, ensure that anchor rod body is closely combined with drill hole wall, positioning ring is installed on the anchoring section of anchor rod body, positioning ring is symmetrically distributed with several positioning slots and separation groove in its axis center. Then, support block is installed between positioning ring, support block is welded on the outside of anti-pulling reinforcement away from positioning ring direction, anti-pulling reinforcement is arranged in the form of interval and passes through the positioning slot of positioning ring, forms positioning channel, and is fastened with hoop and positioning ring, ensure the correct position of anti-pulling reinforcement in anchor rod body, improve the overall stability of anchor rod, and help anchor rod to keep balance when being stressed, reduce deformation or damage caused by uneven stress.

[0016] 2. A kind of anti-pulling anchor rod in argillaceous rock formation, by setting fixed pad, fixed bolt, anchor head, positioning block, fixed pad is firmly connected to structure by fixed bolt, ensure that anchor rod can effectively transmit load to structure when being subjected to pulling force, adjust the position of anchor head, make it accurately aligned with embedded part or reinforcement net on structure, and further ensure the position accuracy of anchor rod by positioning block. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0018] Figure 2 It is the anchor rod body structure schematic diagram of the utility model;

[0019] Figure 3 It is the fixed pad structure schematic diagram of the utility model;

[0020] Figure 4 It is the anchor head structure schematic diagram of the utility model.

[0021] In the drawing: 1, anchor rod body;2, installation slot;3, grouting hole;4, anti-pulling reinforcement;5, positioning ring;6, support block;7, support grout plug;8, fixed pad;9, fixed bolt;10, anchor head;11, positioning block. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely in the embodiments of the utility model in combination with the drawings, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without making creative labor are within the protection scope of the utility model.

[0023] Please refer to Figures 1-4In this embodiment: a pull-out anchor for use in argillaceous rock formations includes an anchor body 1, with multiple mounting grooves 2 on the outside of the anchor body 1 and grouting holes 3 inside the anchor body 1. Pull-out reinforcing bars 4 are fixedly connected inside the multiple mounting grooves 2 respectively. The adjacent sides of the multiple pull-out reinforcing bars 4 are fixedly connected to the outside of the anchor body 1, and the outer sides of the multiple pull-out reinforcing bars 4 are fixedly connected to the inner walls of two positioning rings 5 ​​respectively. Two positioning rings 5 ​​are fixedly connected to the outside of the multiple pull-out reinforcing bars 4. Support blocks 6 are fixedly connected to the left and right sides of the two positioning rings 5 ​​respectively. The adjacent sides of the two support blocks 6 are fixedly connected to the outer sides of the left and right sides of the positioning rings 5 ​​respectively. A grouting plug 7 is provided on the outside of the anchor body 1. The inner wall of the grouting plug 7 is in contact with the outside of the anchor body 1. The inner wall of the grouting plug 7 is slidably connected to the outer sides of the multiple pull-out reinforcing bars 4. Positioning components are fixedly connected to the upper and lower ends of the anchor body 1 respectively.

[0024] In this embodiment, the anchoring section of the anchor rod body 1 is inserted into the borehole to ensure that the anchor rod body 1 is tightly fitted to the borehole wall. A positioning ring 5 is installed on the anchoring section of the anchor rod body 1. The positioning ring 5 has several positioning grooves and partition grooves symmetrically distributed around its axis. Then, support blocks 6 are installed between the positioning rings 5. The support blocks 6 are welded to the outer side of the pull-out reinforcing bars 4 away from the positioning rings 5. The pull-out reinforcing bars 4 are arranged at intervals so that they pass through the positioning grooves of the positioning rings 5 ​​to form a positioning channel. They are then fastened to the positioning rings 5 ​​with the stirrups to ensure the correct position of the pull-out reinforcing bars 4 in the anchor rod body 1. The grouting hole 3 is used to inject grout into the borehole. After the grout solidifies, it is tightly bonded to the anchoring section to form a solid anchor pile. The pull-out reinforcing bars 4 are used to resist the upward pull-out force. The function of the grouting plug 7 is to seal the grouting hole 3 during the grouting process to prevent the grout from flowing out.

[0025] Example 2

[0026] like Figure 1 - Figure 4 As shown, the positioning assembly includes a fixing pad 8 and an anchor head 10. The inner wall of the top end of the anchor head 10 is fixedly connected to the outer side of the bottom end of the anchor rod body 1. Multiple fixing bolts 9 are fixedly connected to the top end of the fixing pad 8. The outer sides of the multiple fixing bolts 9 are respectively fixedly connected to the inner wall of the top end of the fixing pad 8. The inner side of the fixing pad 8 is fixedly connected to the outer side of the top end of the anchor rod body 1. Multiple positioning blocks 11 are fixedly connected to the bottom end of the anchor head 10. The adjacent sides of the multiple positioning blocks 11 are respectively fixedly connected to the outer side of the bottom end of the anchor head 10.

[0027] In this embodiment, a drilling rig is used to drill a vertical hole at a predetermined position. The anchoring section of the anchor rod body 1 is inserted into the hole, and grout is injected through the grouting hole 3. After the grout solidifies, the fixing plate 8 is connected to the outside of the top of the anchor rod body 1 through the fixing bolt 9. The anchor head 10 is installed and connected to the structure. All connections are ensured to be tight, and a final inspection is performed to ensure that the position of the anchor rod is accurate.

[0028] The working principle and use process of the utility model: the anchoring section of the anchor rod body 1 is inserted into the drill hole, the anchor rod body 1 is ensured to be closely combined with the drill hole, the positioning ring 5 and the support block 6 are installed on the anchor rod body 1, they are ensured to be correctly fixed on the anchor rod body 1, the grout is injected into the drill hole through the grouting hole 3 inside the anchor rod body 1, the grout is waited to solidify, the solid anchor pile is formed, the grouting plug 7 is installed in the grouting process or after the grouting is completed, the fixed base plate 8 is connected to the top end outside of the anchor rod body 1 through the fixed bolt 9.It is ensured that the connection between the fixed base plate 8 and the anchor rod body 1 is firm and reliable, and these positioning blocks 11 are fixed at the bottom end outside of the anchor head 10, so that the stability and safety of the underground structure are improved.

[0029] Finally, it should be noted that: the above only for the preferred embodiments of the utility model have described, and do not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part technical features.For any modification, equivalent replacement, improvement etc. within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. An uplift-resistant anchor for use in shaley formations, characterized by: The utility model provides an anchor rod body (1), the outside of anchor rod body (1) is provided with a plurality of installation slot (2), the inside of anchor rod body (1) is provided with grouting hole (3), the inside of a plurality of installation slot (2) is fixedly connected with anti -pulling reinforcement (4) respectively, the outside of a plurality of anti -pulling reinforcement (4) is fixedly connected with two positioning ring (5), the left and right sides of two positioning ring (5) are fixedly connected with support block (6) respectively, the outside of anchor rod body (1) is provided with grouting plug (7), the top and bottom of anchor rod body (1) are fixedly connected with positioning assembly respectively.

2. An uplift-resistant anchor for use in shaley formations according to claim 1, characterized in that: The positioning assembly includes a fixed base plate (8) and an anchor head (10), the top of the fixed base plate (8) is fixedly connected with a plurality of fixed bolts (9), and the bottom of the anchor head (10) is fixedly connected with a plurality of positioning blocks (11).

3. An uplift-resistant anchor for use in shaley formations according to claim 1, characterized in that: The proximal sides of the plurality of anti-pulling reinforcements (4) are fixedly connected to the outside of the anchor rod body (1), and the distal sides of the plurality of anti-pulling reinforcements (4) are fixedly connected to the inner walls of the two positioning rings (5) respectively.

4. An uplift-resistant anchor for use in shaley formations according to claim 1, characterized in that: The proximal sides of the two support blocks (6) are fixedly connected to the outer sides of the left and right sides of the positioning ring (5) respectively.

5. An uplift-resistant anchor for use in shaley formations according to claim 1, characterized in that: The inner wall of the grouting plug (7) is in contact with the outside of the anchor rod body (1), and the inner wall of the grouting plug (7) is slidingly connected to the outer sides of the distal sides of the plurality of anti-pulling reinforcements (4).

6. An uplift-resistant anchor for use in shaley formations according to claim 2, characterized in that: The inside of the fixed base plate (8) is fixedly connected to the top outside of the anchor rod body (1), and the outer sides of the plurality of fixed bolts (9) are fixedly connected to the inner walls of the top of the fixed base plate (8) respectively.

7. An uplift-resistant anchor for use in shaley formations according to claim 2, characterized in that: The inner wall of the top of the anchor head (10) is fixedly connected to the bottom outside of the anchor rod body (1), and the proximal sides of the plurality of positioning blocks (11) are fixedly connected to the bottom outside of the anchor head (10) respectively.

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