Efficient separation auxiliary device for pile head of cast-in-place pile

Abstract

The utility model discloses a cast-in-place pile head efficient separation auxiliary device which comprises pile body reinforcing steel bars, stirrups, concrete poured on the outer sides of the pile body reinforcing steel bars and the stirrups, a pile head partition plate, a pile head PVC casing pipe, a pile head PVC (polyvinyl chloride) sleeve and a pile head PVC (polyvinyl chloride) sleeve pipe, the pile head PVC sleeve is arranged on the outer side of the upper end of the pile body steel bar in a sleeving mode. According to the efficient separation auxiliary device for the pile head of the cast-in-place pile, through the arrangement of the pile head partition plate, upper end concrete and lower end concrete can be separated, the upper end concrete can be conveniently dismantled in the later period, the pile head PVC sleeve is arranged on the outer side of the upper end of a pile body steel bar in a sleeving mode, the pile body steel bar is not bonded with the concrete, and the steel bar is prevented from being damaged when the concrete is dismantled; and the pile head can be separated by directly pulling and hoisting an external machine during dismantling only by vibrating and breaking the concrete in the center of the pile, so that the dismantling is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field related to building pile foundations, in particular to a high-efficiency separation auxiliary device for a cast-in-place pile head. Background Art

[0002] In the field of building pile foundation construction, cast-in-place piles are a widely used pile foundation construction technology. Pile foundations are the best choice for construction projects to transfer upper loads to the foundation bearing layer. Pile foundations are divided into many types according to bearing methods, applicable functions, pile body materials, etc. Cast-in-place reinforced concrete piles have large bearing capacity and are easy to construct. They are suitable for deep foundations and do not require large foundation pits. They are widely used in high-rise and complex terrain projects.

[0003] However, the current technical specifications for building pile foundations require that the actual pile top elevation of the pile foundation construction be about 0.5m-1m higher than the design elevation to ensure that the concrete quality of the designed pile top elevation meets the design requirements. Therefore, when constructing the cap foundation, the higher cast-in-place piles need to be removed manually or mechanically, which causes a lot of waste of manpower, material resources, time and materials, and the noise, dust and other hazards generated in the process are also easy to break the pile body steel bars. After breaking, the pile head still needs to be repaired manually.

[0004] Therefore, we proposed a high-efficiency cast-in-place pile head separation auxiliary device to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a high-efficiency separation auxiliary device for the pile head of a bored pile, so as to solve the problem in the prior art proposed in the above-mentioned background technology that according to the requirements of the technical specifications for building pile foundations, the actual pile top elevation of the pile foundation construction is about 0.5m-1m higher than the designed elevation, so as to ensure that the concrete quality of the designed pile top elevation meets the design requirements. Therefore, when constructing the pedestal foundation, the bored piles that are raised need to be removed manually or mechanically, which causes a large amount of manpower, material resources, time and material waste, and the noise, dust and other hazards generated in the process are also high, and the pile body reinforcement is easily broken, and the pile head still needs to be manually trimmed after breaking.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an efficient separation auxiliary device for a cast-in-place pile head, comprising a pile body steel bar, stirrups and concrete;

[0007] Wherein, the pile body reinforcement and stirrups are connected and fixed;

[0008] Also includes:

[0009] A pile head partition, wherein through holes are opened at equal angles on the edge of the pile head partition, and the through holes are arranged in a one-to-one correspondence with the pile body reinforcement;

[0010] The pile head PVC sleeve is sleeved on the outer surface of the upper end of the pile body reinforcement.

[0011] Preferably, a through groove is provided in the middle of the pile head partition, and a sealing tape for sealing is provided between the pile head partition and the pile head PVC sleeve.

[0012] Preferably, a fixing groove is provided at the upper end of the pile head PVC sleeve, and the middle part of the fixing groove is snap-connected with the upper end of the pile body reinforcement, and the pile body reinforcement is penetrated and connected to the through hole.

[0013] Preferably, a pile body hollow tube is provided on both sides of the upper end of the pile head partition, and the pile body hollow tube is provided in close contact with the side surfaces of the pile body reinforcement.

[0014] Preferably, a dismantling lifting pipe is inserted into the middle of the hollow pipe of the pile body, and connecting grooves are provided on both the front and rear sides of the dismantling lifting pipe, and the connecting grooves are snap-connected with the external slings.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the high-efficiency pile head separation auxiliary device can separate the upper concrete from the lower concrete by setting the pile head partition, which is convenient for the later removal of the upper concrete, and the operation is relatively simple during the whole removal process. The pile head PVC sleeve is set on the outer side of the upper end of the pile body steel bar, so that the pile body steel bar and the concrete are not adhered, and the steel bar is avoided from being damaged when the concrete is removed, and the ease of removing the pile head concrete is reduced. In addition, combined with the setting of the pile body hollow pipe and the removal lifting pipe, the pile head can be directly separated by external mechanical lifting and lifting during removal, which is convenient for removal, and changes the traditional handheld electric tool cutting and pneumatic pick removal, effectively ensuring construction safety.

[0016] 1. A pile head partition, through holes and through grooves are provided. The through holes are connected to the pile body reinforcement, and a through groove is provided in the middle of the pile head partition. The provision of the through groove facilitates concrete pouring and grouting treatment.

[0017] 2. The pile head PVC sleeve and sealing tape are provided. The pile head PVC sleeve is sleeved on the outer side of the upper end of the pile body steel bar, which can prevent the pile body steel bar from adhering to the concrete and avoid damaging the steel bar when removing the concrete;

[0018] 3. A pile body hollow tube and a demolition lifting tube are provided. The pile body hollow tube is placed at the upper end of the pile head partition, and the demolition lifting tube is inserted into the pile body hollow tube. Through the arrangement of the pile body hollow tube and the demolition lifting tube, the pile head can be directly separated by external mechanical lifting during demolition, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is a schematic diagram of the front view cutaway structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the top view of the connection structure of the pile body reinforcement, pile head partition and pile body hollow tube of the utility model;

[0021] Figure 3 This is a schematic diagram of the front view cross-section structure of the connection between the pile body reinforcement, pile head PVC sleeve and fixing groove of the utility model;

[0022] Figure 4 It is a schematic diagram of the overall structure of the hollow pipe of the pile body, the removal and lifting pipe and the connecting groove of the utility model.

[0023] In the figure: 1. Pile body reinforcement; 2. Stirrups; 3. Pile head partition; 4. Through hole; 5. Through groove; 6. Pile head PVC sleeve; 7. Fixing groove; 8. Sealing tape; 9. Pile body hollow tube; 10. Removal lifting pipe; 11. Connection groove; 12. Concrete. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-4 The utility model provides a technical solution: an efficient separation auxiliary device for a cast-in-place pile head, comprising a pile body steel bar 1, stirrups 2, a pile head partition 3, a through hole 4, a through groove 5, a pile head PVC sleeve 6, a fixing groove 7, a sealing tape 8, a pile body hollow tube 9, a dismantling lifting pipe 10, a connecting groove 11 and concrete 12.

[0026] When using the cast-in-place pile head efficient separation auxiliary device, Figure 1 , Figure 2 and Figure 3 As shown, the pile body reinforcement 1 is connected and fixed with the stirrup 2, a through hole 4 is provided at an equal angle at the edge of the pile head partition 3, and the through hole 4 and the pile body reinforcement 1 are arranged in a one-to-one correspondence, the pile body reinforcement 1 is correspondingly penetrated through the through hole 4, and then the pile head PVC sleeve 6 is sleeved on the upper end of the pile body reinforcement 1, and a fixing groove 7 is provided on the top of the pile head PVC sleeve 6, the upper end of the pile body reinforcement 1 is clamped in the fixing groove 7, and a sealing tape 8 is provided between the lower end of the pile head PVC sleeve 6 and the pile head partition 3;

[0027] By setting the pile head PVC sleeve 6, the pile head PVC sleeve 6 is sleeved on the outer side of the pile body steel bar 1 on the upper part of the pile head partition 3 and fixed, so that the pile body steel bar 1 and the concrete 12 are not adhered, and the steel bar is avoided from being damaged when the concrete 12 is removed, and the ease of removal of the pile head concrete 12 is reduced. By setting the sealing tape 8, the opening at the lower end of the pile head PVC sleeve 6 is sealed to prevent mortar from infiltrating, and a through groove 5 is opened in the middle of the pile head partition 3. By setting the through groove 5, it is convenient to pour the concrete 12 and return the slurry.

[0028] Then the pile body hollow tube 9 is placed on the left and right sides of the upper end of the pile head partition 3, and at the same time, the pile body hollow tube 9 and the pile body steel bar 1 are dispersedly arranged, and the pile body steel bar 1 and the pile body steel bar 1 at the corresponding position are clamped, which can play a certain limiting role on the pile body hollow tube 9, and then the concrete 12 is poured. After the pouring and molding is completed, when it is necessary to remove the concrete 12 on the upper end of the pile body steel bar 1, the external template is removed, such as Figure 4 As shown, the removal lifting pipe 10 is inserted into the hollow pipe 9 of the pile body. At the same time, connection grooves 11 are opened at the front and rear ends of the removal lifting pipe 10. The external sling is engaged in the connection groove 11. The pile head can be separated by pulling the sling by an external machine to complete the removal operation, thereby reducing the waste of concrete 12. At the same time, the pile head isolation plate and the casing can be removed for turnover when the concrete 12 reaches a certain strength, which is convenient for construction.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency auxiliary device for separating the top of a cast-in-place pile, comprising pile body steel bars (1), stirrups (2) and concrete (12); in, The pile body reinforcement (1) and the stirrup (2) are connected and fixed; It is characterized by further comprising: A pile head partition (3), wherein through holes (4) are provided at equal angles on the edge of the pile head partition (3), and the through holes (4) are arranged in a one-to-one correspondence with the pile body reinforcement bars (1); A pile head PVC sleeve (6) is sleeved on the outer surface of the upper end of the pile body steel bar (1).

2. The high-efficiency separation auxiliary device for cast-in-place pile heads according to claim 1 is characterized in that: A through groove (5) is provided in the middle of the pile head partition (3), and a sealing tape (8) for sealing is provided between the pile head partition (3) and the pile head PVC sleeve (6).

3. The high-efficiency separation auxiliary device for cast-in-place pile heads according to claim 1 is characterized in that: The upper end of the pile head PVC sleeve (6) is provided with a fixing groove (7), and the middle part of the fixing groove (7) is snap-connected with the upper end of the pile body steel bar (1), and the pile body steel bar (1) is penetrated and connected to the through hole (4).

4. The high-efficiency separation auxiliary device for cast-in-place pile heads according to claim 2 is characterized in that: The left and right sides of the upper end of the pile head partition (3) are fitted with a pile body hollow tube (9), and the pile body hollow tube (9) is fitted with the side surface of the pile body reinforcement (1).

5. The high-efficiency separation auxiliary device for cast-in-place pile heads according to claim 4 is characterized in that: A dismantling lifting pipe (10) is inserted into the middle of the pile body hollow pipe (9), and connection grooves (11) are provided on both the front and rear sides of the dismantling lifting pipe (10), and the connection grooves (11) are snap-connected with external slings.

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