Anchor sealing structure for anchor head of side slope pre-stressed anchor cable
By forming expansion holes at the anchor head of the prestressed anchor cable on the slope and laying an anchor device, the prestressed anchor cable is tensile and the epitaxial steel strands are bent and wrapped inside the retaining plate, the problem of the concrete blocks prone to cracking and falling during the anchor head treatment is solved, and effective protection of the anchor head and aesthetic wall effect is achieved.
Patent Information
- Application Number
- CN202420801207.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-04-15
AI Technical Summary
In the prior art, the treatment of anchor heads is usually wrapped with concrete blocks, but the wrapped concrete blocks are prone to cracking and falling, losing the protective effect on the anchor heads, and affecting the aesthetics.
By constructing prestressed anchor cables in the pile body, then chiseling the anti-sliding pile concrete protective layer at the anchor head position to form an expansion hole, laying an anchor device at the expansion hole, then tensioning the prestressed anchor cables, dismantling the epitaxial steel strand extending the anchor head to disperse and then bend it, and constructing a retaining plate, completely wrapping the bent steel strand inside the retaining plate.
Effectively protect the anchor head to avoid the problem of cracking and falling of concrete blocks, and at the same time make the wall flat and beautiful.
Smart Images
Figure CN222648761U_ABST
Abstract
Description
Technical Field
[0001] The utility model patent relates to the technical field of foundation pit engineering, specifically, to a slope prestressed anchor cable anchor head sealing anchor structure. Background Art
[0002] When building a road near a mountain, there is often a certain height difference between the planned road elevation and the existing slope. During the construction process, a series of building slopes will be formed. In order to ensure the stability and safety of the slopes, they need to be permanently supported. Considering the protection of the environment, the excavation of the existing mountain should be minimized.
[0003] In the prior art, the slope support form of anti-slide piles plus prestressed anchor cables is often used. After the anchor cables are tensioned, the anchor heads are usually wrapped with concrete blocks. This conventional practice has certain problems. On the one hand, the wrapped concrete blocks are prone to cracking and falling, losing the protective effect on the anchor heads. On the other hand, the concrete blocks on the edge of the road affect the appearance. Utility Model Content
[0004] The utility model aims to provide a slope prestressed anchor cable anchor head sealing structure, aiming to solve the problem in the prior art that the anchor head is usually wrapped with concrete blocks, and the wrapped concrete blocks are prone to cracking and falling.
[0005] The utility model is implemented as follows: a slope prestressed anchor cable anchor head sealing anchor structure comprises a longitudinally arranged anti-sliding pile and an anchor cable hole formed by a pile body hole forming construction, an expansion hole is formed by a hole expansion construction on the outer periphery of the anti-sliding pile, and the expansion hole is arranged around the hole mouth of the anchor cable hole; a tensioned and fixed anchor cable is arranged in the anchor cable hole, and the outer end of the anchor cable extends into the expansion hole to form a tensioning section, and an anchoring device for tensioning and fixing the anchor cable is provided on the tensioning section;
[0006] An expansion hole extends from the outer end of the tensioning section to form an extension section, and the extension section includes a plurality of extension steel strands, and the outer ends of the plurality of extension steel strands are bent toward the anti-slip piles; a retaining plate is constructed on the outer periphery of the anti-slip pile, and the retaining plate is extended and arranged along the height direction of the anti-slip pile, and the retaining plate wraps the plurality of extension steel strands.
[0007] Optionally, the anchoring device includes a steel plate and an anchor, the steel plate is pressed against the outer periphery of the anchor hole opening, and the anchor is pressed against the steel plate.
[0008] Optionally, an air hole is formed by drilling on the expansion hole, and along the height direction of the anti-sliding pile, the air hole is drilled and extended downwardly to connect to the anchor hole.
[0009] Optionally, a grouting hole is formed by drilling on the expansion hole, and along the height direction of the anti-sliding pile, the grouting hole is drilled and extended upwardly in an inclined direction to connect to the anchor cable hole.
[0010] Optionally, along the height direction of the anti-sliding pile, the opening of the air vent is formed above the opening of the anchor hole, and the opening of the grouting hole is formed below the opening of the anchor hole.
[0011] Optionally, the inner periphery of the retaining plate is arranged to fit the outer periphery of the anti-sliding piles, and the outer periphery of the retaining plate is flat.
[0012] Optionally, the steel pad is placed in the expansion hole.
[0013] Optionally, the inner end of the anchor is pressed against the steel pad, and the outer end portion of the anchor is exposed outside the anti-sliding pile and is wrapped by the retaining plate.
[0014] Optionally, the middle of the steel base plate has a central hole for the anchor cable to pass through, the central hole penetrates the steel base plate front to back, and the anchor cable hole and the central hole are coaxially arranged front to back.
[0015] Optionally, the anchor cable hole has a built-in section placed in the anti-sliding pile, and one or more steel pipes are reserved on the side wall of the built-in section, and the steel pipes are extended and arranged along the length direction of the built-in section.
[0016] Compared with the prior art, the slope prestressed anchor cable anchor head sealing structure provided by the utility model constructs the prestressed anchor cable by drilling a hole in the pile body, then removes the anti-slip pile concrete protective layer at the anchor head position to form an expansion hole, arranges an anchoring device at the expansion hole, tensions the prestressed anchor cable, and then disassembles the extended steel strand extending out of the anchor head to disperse and then bend it, and then constructs the retaining plate, so that the bent steel strand is completely wrapped inside the retaining plate, which can not only protect the anchor head well, but also make the wall surface smooth and beautiful. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural schematic diagram of the anchor head sealing structure of the prestressed anchor cable on the slope provided by the utility model;
[0018] Figure 2 It is a front view schematic diagram of the steel pad provided by the utility model. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0020] The implementation of the present utility model is described in detail below in conjunction with specific embodiments.
[0021] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present utility model, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.
[0022] Reference Figure 1-2 As shown, it is a preferred embodiment provided by the utility model.
[0023] The utility model provides a slope prestressed anchor cable anchor head sealing anchor structure, comprising a longitudinally arranged anti-sliding pile 100 and an anchor cable hole 200 formed in the pile body hole forming construction, an expansion hole 300 is formed on the outer periphery of the anti-sliding pile 100 by hole expansion construction, and the expansion hole 300 is arranged around the hole mouth of the anchor cable hole 200; a tensioned and fixed anchor cable 210 is arranged in the anchor cable hole 200, and the outer end of the anchor cable 210 extends into the expansion hole 300 to form a tensioning section, and an anchoring device for tensioning and fixing the anchor cable 210 is provided on the tensioning section;
[0024] An expansion hole 300 extends from the outer end of the tensioning section to form an extension section, which includes a plurality of extension steel strands 211, and the outer ends of the plurality of extension steel strands 211 are bent toward the anti-slip pile 100; a retaining plate 400 is constructed and formed on the outer periphery of the anti-slip pile 100, and the retaining plate 400 is extended and arranged along the height direction of the anti-slip pile 100, and the retaining plate 400 wraps the plurality of extension steel strands 211.
[0025] The anchor head sealing structure of the prestressed anchor cable 210 for the slope provided above is constructed by drilling a hole in the pile body to construct the prestressed anchor cable 210, then removing the concrete protective layer of the anti-slip pile 100 at the anchor head position to form an expansion hole 300, arranging an anchoring device at the expansion hole 300, and then tensioning the prestressed anchor cable 210, and then disassembling the extended steel strand 211 extending out of the anchor head to disperse and then bend it, and then constructing the retaining plate 400, so that the bent steel strand is completely wrapped inside the retaining plate 400, which can not only protect the anchor head well, but also make the wall surface smooth and beautiful.
[0026] Specifically, the anchoring device includes a steel plate 310 and an anchor 320 . The steel plate 310 is pressed against the outer periphery of the opening of the anchor hole 200 , and the anchor 320 is pressed against the steel plate 310 .
[0027] The expansion hole 300 is drilled with an air hole 301, and along the height direction of the anti-sliding pile 100, the air hole 301 extends downward and is drilled to connect to the anchor hole 200. In this way, the gas in the anchor hole 200 can be discharged through the air hole 301, ensuring uniform grouting, and the air hole 301 extends upward and is arranged from the inside to the outside, preventing the slurry from flowing out through the air hole 301 under the action of gravity.
[0028] A grouting hole 302 is drilled on the expansion hole 300, and along the height direction of the anti-sliding pile 100, the grouting hole extends upward and is drilled to connect the anchor hole 200. In this way, a grouting channel for grouting into the anchor hole 200 is formed by the design of the grouting hole 302, and the grouting hole 302 is arranged downward from the inside to the outside to ensure uniform grouting of the slurry, and to prevent the slurry from accumulating under the anchor hole 200 under the action of gravity, which affects the grouting effect.
[0029] Along the height direction of the anti-sliding pile 100, the opening of the air hole 301 is formed above the opening of the anchor hole 200, and the opening of the grouting hole 302 is formed below the opening of the anchor hole 200. In this way, the air hole 301 and the grouting hole 302 can play their respective roles without interfering with each other, and are conducive to the discharge of gas and the injection of slurry. During the grouting process, the gas can be discharged smoothly through the air hole 301, and the slurry is evenly injected through the grouting hole 302. This layout is conducive to the smooth progress of the grouting process.
[0030] The inner periphery of the retaining plate is arranged in close contact with the outer periphery of the anti-slide pile 100, and the outer periphery of the retaining plate is flat. In this way, the service life of the retaining plate is longer and the anchor head is better protected.
[0031] The steel backing plate 310 is placed in the expansion hole 300. In this way, complete shielding protection is provided.
[0032] The inner end of the anchor 320 is pressed against the steel pad 310, and the outer end of the anchor 320 is exposed outside the anti-slide pile 100 and is wrapped by the retaining plate 400. In this way, the connection between the retaining plate 400 and the anchor 320 is increased, making the anchor cable 210 more secure and stable.
[0033] Specifically, the middle of the steel backing plate 310 has a central hole for the anchor cable 210 to pass through, the central hole penetrates the steel backing plate 310 front to back, and the anchor cable hole 200 is coaxially arranged front to back with the central hole.
[0034] The anchor hole 200 has an inner section 201 placed in the anti-sliding pile 100, and one or more steel pipes 220 are reserved on the side wall of the inner section 201, and the steel pipes 220 are arranged along the length direction of the inner section 201. In this way, before the construction of the prestressed anchor cable 210, one or more steel pipes 220 are driven into the pile body concrete, so as to avoid the difficulty of drilling into the pile body reinforced concrete when constructing the anchor hole 200, and facilitate the passage of the anchor cable 210 later.
[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. The prestressed anchor cable anchor head sealing structure for slopes is characterized by: The invention comprises a longitudinally arranged anti-sliding pile and an anchor cable hole formed in the pile body hole forming construction, wherein an expansion hole is formed by hole expansion construction on the outer periphery of the anti-sliding pile, and the expansion hole is arranged around the hole mouth of the anchor cable hole; a tensioned anchor cable is arranged in the anchor cable hole, and the outer end of the anchor cable extends into the expansion hole to form a tensioning section, and an anchoring device for tensioning and fixing the anchor cable is provided on the tensioning section; An expansion hole extends from the outer end of the tensioning section to form an extension section, and the extension section includes a plurality of extension steel strands, and the outer ends of the plurality of extension steel strands are bent toward the anti-slip piles; a retaining plate is constructed on the outer periphery of the anti-slip pile, and the retaining plate is extended and arranged along the height direction of the anti-slip pile, and the retaining plate wraps the plurality of extension steel strands.
2. The slope prestressed anchor cable anchor head sealing structure according to claim 1, characterized in that: The anchoring device comprises a steel backing plate and an anchor, wherein the steel backing plate is pressed against the outer periphery of the anchor cable hole opening, and the anchor is pressed against the steel backing plate.
3. The slope prestressed anchor cable anchor head sealing structure according to claim 1, characterized in that: An air hole is formed by drilling on the expansion hole, and along the height direction of the anti-sliding pile, the air hole is drilled and extended downwardly to connect to the anchor cable hole.
4. The slope prestressed anchor cable anchor head sealing structure according to claim 3, characterized in that: A grouting hole is formed by drilling on the expansion hole, and along the height direction of the anti-sliding pile, the grouting hole is drilled and extended upwardly in an inclined direction to connect to the anchor cable hole.
5. The slope prestressed anchor cable anchor head sealing structure according to claim 4, characterized in that: Along the height direction of the anti-sliding pile, the opening of the air vent is formed above the opening of the anchor hole, and the opening of the grouting hole is formed below the opening of the anchor hole.
6. The slope prestressed anchor cable anchor head sealing structure according to claim 1, characterized in that: The inner periphery of the retaining plate is arranged in contact with the outer periphery of the anti-sliding piles, and the outer periphery of the retaining plate is flat.
7. The slope prestressed anchor cable anchor head sealing structure according to claim 2, characterized in that: The steel backing plate is placed in the expansion hole.
8. The slope prestressed anchor cable anchor head sealing structure according to claim 2, characterized in that: The inner end of the anchor is pressed against the steel pad, and the outer end of the anchor is exposed outside the anti-slide pile and is wrapped by the retaining plate.
9. The slope prestressed anchor cable anchor head sealing structure according to claim 2, characterized in that: The middle part of the steel base plate is provided with a central hole for the anchor cable to pass through, the central hole penetrates the steel base plate front to back, and the anchor cable hole and the central hole are coaxially arranged front to back.
10. The slope prestressed anchor cable anchor head sealing structure according to any one of claims 1 to 9, characterized in that: The anchor cable hole has an inner section placed in the anti-sliding pile, and one or more steel pipes are reserved on the side wall of the inner section, and the steel pipes are extended and arranged along the length direction of the inner section.