Underground anchor rod cutting equipment close to building
By combining a wire saw with H-beams, the problem of efficient and safe cutting of underground anchor bolts near buildings during subway station construction was solved. This enabled convenient and efficient anchor bolt removal, prevented hole collapse, and saved construction costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-03-10
AI Technical Summary
In subway station construction, existing technologies are insufficient for efficiently and safely removing underground anchor bolts from nearby buildings. Furthermore, traditional methods are inefficient and prone to causing borehole collapse, failing to meet the requirements of safety and economy.
The cutting equipment, which combines a wire saw with H-beams, is hoisted by a crane. The wire saw is used to cut the anchor bolts by bypassing the guide wheel and support wheel. Combined with the support structure of the H-beams, the equipment is stable and safe.
It enables convenient and efficient cutting of anchor bolts, avoids hole collapse, reduces construction costs, and improves construction safety and efficiency.
Smart Images
Figure CN223981266U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of building construction, especially relate to a near building underground anchor rod cutting equipment. BACKGROUND
[0002] In the process of subway station construction, due to the station near existing building, the support anchor rod of present building invades the diaphragm wall grooving area, and it is needed to cut the support anchor rod before the diaphragm wall grooving. Since the anchor rod is near existing building, the influence of underground anchor rod removal on the near existing building and the influence on the diaphragm wall construction process need to be considered, and when the scheme is formulated, the safety and economy need to be considered. The rotary drilling rig or pressure shear of grooving machine bucket tooth can be used to cut, and through field test, the efficiency is low, the hole is easy to collapse, the work efficiency is low and the square is seriously exceeded; the steel bar diameter is large, and it cannot be cut, therefore a suitable anchor rod cutting equipment is needed to solve the above problems. SUMMARY
[0003] The present application solves the problem of overcoming the deficiencies of the background art and providing a near building underground anchor rod cutting equipment.
[0004] The present application is realized by the following technical solutions:
[0005] A near building underground anchor rod cutting equipment, comprising a rope sawing machine, the rope sawing machine is installed in a bearing box, the bearing box is welded on the upper end of an H-shaped steel, and the bearing box is symmetrically welded with lifting pieces at four corners; support plates are symmetrically welded on the lower opposite sides of the H-shaped steel, the bottom end of the support plates is lower than the bottom end of the H-shaped steel, an inclined plate is symmetrically welded between the two support plates, the upper end of the inclined plate is welded with the H-shaped steel, and the lower end of the inclined plate is flush with the lower end of the support plate; guide wheels are arranged on the left and right sides below the rope sawing machine, the guide wheels are installed on the bearing box or the H-shaped steel, support wheels are symmetrically arranged on the left and right sides of the lower part of the support plate corresponding to the guide wheels, and the rope sawing machine is wound around the guide wheels and the support wheels; a gap is symmetrically arranged in the middle of the lower part of the two support plates, and the gap is used for passing the anchor rod.
[0006] Preferably, the bearing box is provided with a guardrail around.
[0007] Preferably, an inclined support is welded between the bearing box and the H-shaped steel.
[0008] Preferably, the lifting piece is a inverted U-shaped lifting ring.
[0009] Preferably, the gap is a T-shaped gap.
[0010] Preferably, a connecting rib is arranged on the upper part of the gap.
[0011] The device of this invention combines H-beams with a wire saw and uses a crane for cutting. Compared with the traditional anchor bolt removal method, it is convenient, efficient, and safe, does not cause hole collapse, and saves construction costs. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of this embodiment;
[0013] Figure 2 This is a front view structural diagram of this embodiment;
[0014] Figure 3 This is a schematic diagram of a partial bottom structure in this embodiment;
[0015] Figure 4 This is a schematic diagram of the upper partial structure of this embodiment.
[0016] In the diagram, 1 is a wire saw, 2 is a load-bearing box, 3 is a lifting component, 4 is a support plate, 5 is an inclined plate, 6 is a guide wheel, 7 is a support wheel, 8 is a wire saw, 9 is a notch, 10 is a guardrail, 11 is an inclined support, 12 is a connecting rib, and 13 is an H-beam. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.
[0018] This embodiment includes a wire saw 1, which is installed and fixed inside a support box 2. The support box 2 is welded to the upper end of an H-beam 13. Lifting components 3 are symmetrically welded at the four corners of the support box 2. In this embodiment, the lifting components 3 are inverted U-shaped lifting rings, which are used to lift the entire cutting equipment. To make the structure more stable, it is preferable to weld diagonal supports 11 between the support box 2 and the H-beam 13. In this embodiment, four diagonal supports 11 are welded. To further ensure construction safety, it is preferable to have guardrails 10 around the support box 2.
[0019] Support plates 4 are symmetrically welded to the lower, opposite sides of the H-beam 13. The support plates 4 are thick steel plates; in this embodiment, they are rectangular plates. Inclined plates 5 are symmetrically welded between the two support plates 4. The inclined plates 5 have a certain inclination, with their upper ends welded to the H-beam 13 and their lower ends flush with the lower ends of the support plates 4. The two support plates 4 and two inclined plates 5 enclose the lower part of the H-beam 13, supporting it. The bottom ends of the support plates 4 and inclined plates 5 are both lower than the bottom end of the H-beam 13, raising the H-beam 13 a certain height off the ground.
[0020] Guide wheels 6 are provided on the left and right sides below the wire saw machine 1. The guide wheels 6 are used to guide the direction of the wire saw 8. The guide wheels 6 can be installed on the bearing box 2 or on the H-beam 13, depending on the situation. In this embodiment, the guide wheel 6 on the left is installed on the H-beam 13, and the guide wheel 6 on the right is installed on the outer surface of the bearing box 2. Support wheels 7 are symmetrically provided on the left and right sides of the lower part of the support plate 4 on the side corresponding to the guide wheel 6. The wire saw 8 of the wire saw machine 1 passes around the guide wheel 6 and the support wheel 7. The wire saw 8 between the two support wheels 7 is used to cut the anchor rod. Notches 9 are symmetrically provided in the middle of the lower part of the front and rear support plates 4. The notches 9 are used for the anchor rod to pass through. Therefore, the height of the notch 9 must be greater than the diameter of the anchor rod. In this embodiment, the notch 9 is a T-shaped notch. In order to further ensure the stability of the force at the notch 9, a connecting rib 12 is provided on the upper part of the notch 9. The two ends of the connecting rib 12 are welded to the inner walls on both sides of the notch 9. The connecting rib 12 is located above the anchor rod, that is, the space below the connecting rib 12 is enough for the anchor rod to pass through.
[0021] During construction, the trenching machine is first used to determine the approximate position of the anchor rod. Then, the anchor rod is precisely positioned. A crane is used to lift the equipment of this invention by holding the lifting components 3 at the four corners and lower it vertically into the trench. The anchor rod passes through the notch 9 under the front and rear support plates 4. The wire saw 8 between the two support wheels 7 is pressed on the upper surface of the anchor rod. Then, the wire saw machine 1 is turned on to cut. During the cutting process, the crane holds the equipment. After the cutting is completed, the crane lifts the equipment away, and the ground diaphragm wall continues to trench to grab the cut anchor rod.
[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; those skilled in the art should understand that modifications can still be made to the technical solutions described in the above embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.
Claims
1. A device for cutting a ground anchor adjacent to a building, comprising a wire saw (1), characterised in that: The rope saw machine (1) is installed in a bearing box (2), the bearing box (2) is welded on the upper end of an H-shaped steel (13), the bearing box (2) is symmetrically welded with a lifting piece (3) on four corners; the support plates (4) are symmetrically welded on the opposite sides of the lower part of the H-shaped steel (13), the bottom end of the support plate (4) is lower than the bottom end of the H-shaped steel (13), the inclined plates (5) are symmetrically welded between the two support plates (4), the upper end of the inclined plate (5) is welded with the H-shaped steel (13), the lower end of the inclined plate (5) is flush with the lower end of the support plate (4); the guide wheels (6) are respectively arranged on the left and right sides below the rope saw machine (1), the guide wheels (6) are installed on the bearing box (2) or the H-shaped steel (13), the support wheels (7) are symmetrically arranged on the left and right sides of the lower part of the support plate (4) corresponding to the guide wheels (6), the rope saw (8) of the rope saw machine (1) passes through the guide wheels (6) and the support wheels (7); the notches (9) are symmetrically arranged in the middle of the lower part of the two support plates (4), the notches (9) are used for passing through the anchor rods.
2. A building proximal underground anchor rod cutting apparatus according to claim 1, characterised in that: The bearing box (2) is provided with guardrails (10) around.
3. The underground building adjacent anchor rod cutting apparatus of claim 1, wherein: The inclined supports (11) are welded between the bearing box (2) and the H-shaped steel (13).
4. The underground building proximity anchor cutting apparatus of claim 1, wherein: The lifting piece (3) is a reverse U-shaped lifting ring.
5. The underground building adjacent anchor rod cutting apparatus of claim 1, wherein: The notch (9) is a T-shaped notch.
6. The underground building adjacent anchor rod cutting apparatus of claim 1, wherein: The upper part of the notch (9) is provided with a connecting rib (12).