Anti-floating anchor rod without breaking pile head

Abstract

The utility model discloses a breaking-free pile head anti-floating anchor rod, which belongs to the technical field of anti-floating anchor rod construction and comprises a pile hole, a mold, an anchor bar, a concrete structure and a grouting pipe. The mold is arranged on the construction ground corresponding to a pile hole and comprises a body, a reinforcing plate and a plug. The body is of a barrel structure and is formed by bending a side plate, a first reserved hole is formed in the left end of the side plate, and second reserved holes are formed in the right end of the side plate at intervals. The plug is inserted into the first preformed hole and the second preformed hole; the anchor bars are inserted into the pile holes, and the top ends of the anchor bars extend above the mold; the concrete structure is arranged in the drill hole and integrally connected with the anchor bar, and the top of the concrete structure is flush with the top surface of the mold; and the grouting pipe is inserted into the pile hole. The mold is arranged at the position of the pile head, so that the tedious step of breaking the pile head by the anti-floating anchor rod can be omitted; the mold body is adjustable in size, can be suitable for the anti-floating anchor rods with different diameters, and is convenient to recycle; when the mold is dismantled, the side plates can be unfolded only by dismantling the plugs, then the mold is rapidly dismantled, and operation is easy and convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of anti-floating anchor rod construction, in particular to an anti-floating anchor rod free from breaking pile heads. Background Art

[0002] Anti-floating anchor rods, also called anti-floating piles, are a kind of anti-floating measures for underground structures in construction projects. Construction in areas with high groundwater levels will inevitably require the use of anti-floating anchor rod construction technology. In conventional foundation pit construction, anti-floating anchor rods generally use the post-excavation and pile head breaking construction technology, which ensures the strength of the main pile of the anti-floating anchor rod. However, this anti-floating anchor rod construction method leads to repeated foundation pit excavation work, delays the construction period, and increases construction costs, and has no advantages in economic benefits.

[0003] The patent with the file number CN209456997U discloses a molding mold for the special-shaped structure of the anchoring end of an anti-floating anchor rod, including a skeleton and a special-shaped outer mold. The outer mold is formed with two openings for the anchoring end of the anti-floating anchor rod to pass through. The two openings are arranged opposite to each other and are interconnected. The skeleton is connected to the inner side of the outer mold. The skeleton includes two support rings and a plurality of support rods. The two support rings are respectively located at the two openings, and the support rods are connected between the two support rings. This solution can avoid secondary chiseling after the concrete is poured, and the process is simple. However, in the above scheme, the mold size is fixed, which makes it difficult to use for anti-floating anchor rods of different diameters, and is not conducive to turnover use; in addition, due to the size limitation of the mold, the above mold cannot be used for anti-floating anchor rods with bent tops of the anchor bars. Utility Model Content

[0004] The utility model aims to provide an anti-floating anchor rod without breaking the pile head, so as to solve the problems in the above-mentioned background technology that the mold size is fixed, it is difficult to be used for anti-floating anchor rods with different diameters and it cannot be used for anti-floating anchor rods with bent anchor bar tops.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An anti-floating anchor rod without breaking the pile head, comprising a pile hole, a mold, anchor bars, a concrete structure and a grouting pipe;

[0007] The mold is arranged on the construction ground corresponding to the pile hole, and comprises a body, a reinforcement plate and a plug; the body is a cylindrical structure, formed by bending the side plate, the left end of the side plate is provided with a first reserved hole, and the right end is provided with a second reserved hole at intervals; the plug is inserted in the first reserved hole and the second reserved hole;

[0008] The anchor bar is inserted in the pile hole, and its top extends to the top of the mold; the concrete structure is arranged in the drilled hole and connected with the anchor bar as a whole, and its top is flush with the top surface of the mold; the grouting pipe is inserted in the pile hole.

[0009] Furthermore, it also includes a fixing bar, one end of which is connected to the inner wall of the pile hole, and the other end is connected to the anchor bar.

[0010] Furthermore, the mold also includes a reinforcing plate, which is arranged at the connecting positions of the two ends of the side plates and has a through hole corresponding to the first reserved hole.

[0011] Furthermore, the reinforcement plate is an arc-shaped plate, and two are arranged corresponding to the inner and outer sides of the side plate.

[0012] Furthermore, the side plate is a galvanized steel plate; the through hole on the reinforcing plate is a threaded hole; and the plug is a bolt and cooperates with the threaded hole.

[0013] Furthermore, three anchor bars are provided and are evenly distributed in space according to the endpoints of an equilateral triangle.

[0014] Furthermore, the grouting pipe is arranged between three anchor bars and is located at a central position.

[0015] Furthermore, a water stop strip is arranged on the anchor bar at a position corresponding to the mold.

[0016] Furthermore, the concrete structure is formed by pouring ordinary Portland cement mortar.

[0017] The utility model has the following beneficial effects:

[0018] 1. The utility model provides an anti-floating anchor rod that does not require breaking the pile head. A mold is arranged at the pile head position, which can avoid the tedious steps of breaking the pile head of the anti-floating anchor rod, shorten the construction period, and reduce the construction cost.

[0019] 2. The utility model provides an anti-floating anchor rod with a pile head that does not require breaking. The size of the mold body is adjustable and can be applied to anti-floating anchor rods of different diameters, which is convenient for turnover and utilization.

[0020] 3. The utility model provides an anti-floating anchor rod without breaking the pile head. When removing the mold, it is only necessary to remove the plug to unfold the side plate, and then quickly remove the mold. The operation is simple and convenient, so that the installation and disassembly of the mold is not restricted by whether the top of the anchor bar is bent.

[0021] 4. The utility model provides an anti-floating anchor rod without breaking the pile head, which fixes the anchor bar in the pile hole by fixing the anchor bar, effectively preventing the anchor bar from being displaced during the pouring process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the anti-floating anchor rod involved in the utility model;

[0023] Figure 2 It is a layout position diagram of anchor bars and grouting pipes involved in the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the mold involved in the utility model;

[0025] Figure 4 This is an expanded view of the main body involved in the utility model.

[0026] In the figure: 1-pile hole, 2-mould, 21-body, 22-reinforcement plate, 23-embolism, 3-anchor bar, 4-concrete structure, 5-grouting pipe, 6-fixing bar. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figure 1-4 As shown, the utility model provides a kind of pile head anti-floating anchor rod without breaking, including a pile hole 1, a mold 2, anchor bars 3, a concrete structure 4, a grouting pipe 5 and a fixing bar 6; the mold 2 is arranged on the construction ground corresponding to the pile hole 1, and includes a main body 21, a reinforcing plate 22 and an embolism 23, the main body 21 is a cylindrical structure, formed by bending a side plate, and serves as a pile head casting mold 2, a first reserved hole is arranged at the left end of the side plate, and a second reserved hole is arranged at intervals at the right end; the reinforcing plate 22 is arranged at the connection position at both ends of the side plate, and a through hole is opened corresponding to the first reserved hole; The embolus 23 is inserted into the first reserved hole, the second reserved hole and the through hole. By selecting different second reserved holes, the size adjustment of the main body 21 is achieved to adapt to different anti-floating anchor rod sizes; the anchor bar 3 is inserted into the pile hole 1, and its top extends to above the mold 2; the concrete structure 4 is arranged in the drilled hole and is connected to the anchor bar 3 as a whole, and its top is flush with the top surface of the mold 2; the grouting pipe 5 is inserted into the pile hole 1; one end of the fixing bar 6 is connected to the inner wall of the pile hole 1, and the other end is connected to the anchor bar 3 to prevent the anchor bar 3 from displacement during the pouring process.

[0029] The side plate is a galvanized steel plate with a height of 100 mm and a thickness of 1 mm. The plug 23 is a bolt. The reinforcing plate 22 is an arc-shaped plate, and two pieces are provided corresponding to the inner and outer sides of the side plate. The through holes provided thereon are threaded holes, which cooperate with the bolts. After the pile head is cast and formed, the plug 23 is removed, the side plate can be unfolded, and the mold 2 can be removed. The operation is convenient and quick. Preferably, the reinforcing plate 22 is fixedly connected to the left end of the side plate, and its thickness is 10 mm. The diameter of the body 21 is adjusted between 150-250 mm.

[0030] Three anchor bars 3 are provided and are evenly distributed in space according to the endpoints of an equilateral triangle. A water stop strip is provided on the anchor bar 3 corresponding to the position of the mold 2. The top of the anchor bar 3 is bent.

[0031] The concrete structure 4 is made of P.0425 ordinary Portland cement mortar.

[0032] The grouting pipe 5 is arranged between the three anchor bars 3 and is located at the center. The grouting pipe 5 is inserted into the pile hole 1 together with the anchor bars 3, and the lowest point is 100 mm above the designed elevation of the pile bottom. The grouting is started from the bottom of the hole by high-pressure grouting until the grout overflows from the hole mouth, and then the hole mouth is closed.

[0033] The length of the fixing ribs 6 is 100 mm, and two fixing ribs 6 are arranged on each anchor rib 3 .

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pile head-free anti-floating anchor rod, characterized in that: It comprises a pile hole (1), a mold (2), anchor bars (3), a concrete structure (4) and a grouting pipe (5); The mold (2) is arranged on the construction ground corresponding to the pile hole (1), and comprises a body (21), a reinforcement plate (22) and a plug (23); the body (21) is a cylindrical structure formed by bending a side plate, a first reserved hole is arranged at the left end of the side plate, and a second reserved hole is arranged at intervals at the right end; the plug (23) is inserted into the first reserved hole and the second reserved hole; The anchor bar (3) is inserted into the pile hole (1), and its top end extends to the top of the mold (2); the concrete structure (4) is arranged in the drilled hole and connected to the anchor bar (3), and its top end is flush with the top surface of the mold (2); the grouting pipe (5) is inserted into the pile hole (1).

2. The anti-floating anchor rod without breaking pile head according to claim 1, characterized in that: It also includes a fixing rib (6), one end of which is connected to the inner wall of the pile hole (1), and the other end of which is connected to the anchor rib (3).

3. The anti-floating anchor rod without breaking pile head according to claim 1, characterized in that: The mould (2) further comprises a reinforcing plate (22), wherein the reinforcing plate (22) is arranged at the connection positions at both ends of the side plate and has a through hole corresponding to the first reserved hole.

4. The anti-floating anchor rod without breaking pile head according to claim 3 is characterized by: The reinforcing plates (22) are arc-shaped plates, and two are provided corresponding to the inner and outer sides of the side plates.

5. The anti-floating anchor rod without breaking pile head according to claim 3 is characterized by: The side plate is a galvanized steel plate; the through hole on the reinforcing plate (22) is a threaded hole; and the plug (23) is a bolt and cooperates with the threaded hole.

6. The anti-floating anchor rod without breaking pile head according to claim 1, characterized in that: Three anchor bars (3) are provided and are evenly distributed in space according to the endpoints of an equilateral triangle.

7. The anti-floating anchor rod without breaking pile head according to claim 6, characterized in that: The grouting pipe (5) is arranged between the three anchor bars (3) and is located at a central position.

8. The anti-floating anchor rod without breaking pile head according to claim 1, characterized in that: A water stop strip is arranged on the anchor bar (3) at a position corresponding to the mould (2).

9. The anti-floating anchor rod without breaking pile head according to claim 1, characterized in that: The concrete structure (4) is formed by pouring ordinary Portland cement mortar.

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