A drilling pile reinforcement cage hoisting and positioning structure

Abstract

The utility model belongs to the field of bored pile construction technology, concretely relates to a kind of hoisting and positioning structure of bored pile reinforcement cage;Including reinforcement cage, the vertex of the inscribed square of reinforcement cage is connected with lengthening rod, lengthening rod can be from orifice to explore after being put into pile hole after reinforcement cage hoisting and lowering, and lengthening rod between the diagonal of inscribed square is connected with positioning rod, positioning rod is located outside pile hole, and the orifice of pile hole is connected with cross pull rope, the intersection of positioning rod is aligned with the intersection of cross pull rope to realize the positioning of reinforcement cage by adjusting reinforcement cage;By setting lengthening rod in the vertex of the inscribed square of reinforcement cage, and positioning rod is set between diagonal lengthening rod, combined with the cross pull rope of orifice center, construction personnel can intuitively realize the accurate centering positioning of reinforcement cage by aligning two intersections (the intersection of positioning rod and the intersection of cross pull rope), avoid the deviation problem of traditional indirect control relying on protective layer cushion block.

Description

Technical Field

[0001] This utility model belongs to the field of bored pile construction technology, specifically relating to a bored pile reinforcement cage hoisting and positioning structure. Background Technology

[0002] In the construction of bored piles, accurate positioning of the reinforcing cage is an important step in the quality control of bored pile construction. Currently, the position of the reinforcing cage is mainly controlled by concrete protective layer spacers. The protective layer spacers are placed against the borehole wall to control the position of the reinforcing cage and ensure the thickness of the reinforced concrete protective layer. However, it is not possible to directly see whether the position of the reinforcing cage is accurate, so the positioning effect is also subject to deviation. Utility Model Content

[0003] This invention aims to solve the problem of inaccurate positioning of steel cages during the current construction of bored piles.

[0004] This utility model provides the following technical solution: a hoisting and positioning structure for a drilled pile reinforcement cage, comprising a reinforcement cage, with an extension rod connected to the vertex of the inner square of the reinforcement cage. After the reinforcement cage is hoisted and placed into the pile hole, the extension rod can protrude from the hole opening. A positioning rod is connected between the extension rods located at opposite corners of the inner square. The positioning rod is located outside the pile hole. A cross rope with its intersection point located at the center of the hole opening is connected to the hole opening. The reinforcement cage is adjusted so that the intersection point of the positioning rod is aligned with the intersection point of the cross rope to achieve the positioning of the reinforcement cage.

[0005] Furthermore, a reinforcing rod connects adjacent extension rods, with the reinforcing rod serving as a side of the inscribed square.

[0006] Furthermore, the extension rod is a steel bar, and the extension rod is connected to the longitudinal bars of the steel cage.

[0007] Furthermore, the spacing between the reinforcing rods is 1 meter along the length of the extension rod.

[0008] Furthermore, the extension rod has the same longitudinal reinforcement grade as the reinforcing cage, and the extension rod is connected to the longitudinal reinforcement through a reinforcing sleeve.

[0009] Furthermore, the positioning rod is located at the top of the extension rod, and a reinforcing rod is also connected to the top of the extension rod.

[0010] Furthermore, the reinforcing bar is a steel bar, and the reinforcing bar at the same elevation is formed by bending a whole steel bar.

[0011] Furthermore, the reinforcing rod and the extension rod are welded together.

[0012] Compared with the prior art, the advantages of this utility model are: This utility model provides a hoisting and positioning structure for bored pile reinforcement cages. By setting extension rods at the vertices of a square inside the reinforcement cage and positioning rods between the diagonally opposite extension rods, combined with a cross-shaped rope at the center of the borehole, construction personnel can directly align the two intersection points (the intersection of the positioning rods and the intersection of the cross-shaped rope) to achieve precise centering and positioning of the reinforcement cage. This avoids the deviation problems associated with traditional methods that rely on indirect control via protective layer pads. This ensures accurate hoisting of the reinforcement cage, guarantees that the center position meets design requirements, ensures that the position of the reinforcement cage and the thickness of the protective layer meet design requirements, and ensures that the reinforcement cage is fully enclosed within the concrete, preventing corrosion of the bored pile reinforcement and ensuring the permanence of the bored pile. Attached Figure Description

[0013] Figure 1 A longitudinal schematic diagram of the hoisting and positioning structure for the reinforcing cage of a bored pile. Figure 2 A top view of the hoisting and positioning structure for the reinforcing cage of a bored pile; Figure 3 This is a schematic diagram showing the deviation between the position of the reinforcing cage and the design position. Figure 4 This is a schematic diagram showing the adjusted position of the reinforcing cage compared to the design position.

[0014] In the diagram: 1-reinforcing cage; 1.1-longitudinal reinforcement; 2-extension rod; 3-positioning rod; 4-strengthening rod; 5-cross rope; 6-pile hole; 7-ground; 8-ground surveying and layout. Detailed Implementation

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] like Figures 1-4 As shown: A hoisting and positioning structure for a bored pile reinforcement cage includes a reinforcement cage 1. An extension rod 2 is connected to the vertex of the inscribed square of the reinforcement cage 1. After the reinforcement cage 1 is hoisted and placed into the pile hole, the extension rod 2 can protrude from the hole opening. A positioning rod 3 is connected between the extension rods 2 located at opposite corners of the inscribed square. The positioning rod 3 is located outside the pile hole. A cross rope 5 with its intersection point located at the center of the hole opening is connected to the opening of the pile hole. The two ends of the rope are fixed in the ground by nails. The reinforcement cage 1 is adjusted so that the intersection point of the positioning rod 3 is aligned with the intersection point of the cross rope 5 to achieve positioning of the reinforcement cage 1.

[0017] The cross rope 5 provides a clear reference system for the center of the borehole, allowing construction workers to directly observe and adjust the position of the rebar cage 1 on the ground. Through the cooperation of the positioning rod 3 and the cross rope 5, the center position of the rebar cage 1 can be positioned intuitively, quickly, and accurately, ensuring that the rebar cage 1 is centered and the protective layer thickness is uniform.

[0018] A reinforcing rod 4 connects adjacent extension rods 2, with the reinforcing rod 4 serving as a side of the inscribed square. Extension rods 2 are steel bars, and they are connected to the longitudinal bars 1.1 of the steel cage 1.

[0019] The extension rod 2 is connected to the longitudinal reinforcement 1.1 of the steel cage 1, and forms a stable spatial frame structure through the reinforcing rod 4, which enhances the overall rigidity and resistance to deformation. It is not easy to deviate or twist during hoisting and lowering, thus ensuring the accuracy of positioning.

[0020] Along the length of extension rod 2, the spacing of reinforcing rods 4 is 1 meter.

[0021] The extension rod 2 has the same designation as the longitudinal reinforcement 1.1 of the steel cage 1, and the extension rod 2 is connected to the longitudinal reinforcement 1.1 by a steel sleeve.

[0022] The positioning rod 3 is located at the top of the extension rod 2, and the top of the extension rod 2 is also connected to the reinforcing rod 4.

[0023] Reinforcing rod 4 is a steel bar, and reinforcing rod 4 at the same elevation is formed by bending a single steel bar. Reinforcing rod 4 is welded to extension rod 2. Positioning rod 3 is also a steel bar, and positioning rod 3 is welded to extension rod 2.

[0024] During the fabrication of the reinforcing cage 1, extension rods 2 are installed at the four vertices of the inner square, and positioning rods 3 are set between the diagonally opposite extension rods 2. These are then connected to form an integral frame via reinforcing rods 4. Extension rods 2 are connected to longitudinal reinforcement 1.1 using sleeves, and reinforcing rods 4 are welded to extension rods 2 for fixation. The reinforcing cage 1 is hoisted into the pile hole 6, with extension rods 2 extending out of the hole. Cross ropes 5 are connected between the ground surveying and marking lines 8 outside the hole. The positional relationship between the intersection of positioning rods 3 and the intersection of cross ropes 5 is observed, and the two points are aligned by fine-tuning the hoisting equipment or manual assistance. The reinforcing cage 1 is then lowered to the design elevation. After the reinforcing cage 1 is hoisted to the design elevation, the intersection of positioning rods 3 and the intersection of cross ropes 5 are checked again to ensure consistency. Once confirmed, the reinforcing cage 1 is fixed, and concrete pouring begins.

[0025] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hoisting and positioning structure for a bored pile reinforcement cage, characterized in that: The steel cage (1) includes a reinforcing cage (1). The vertices of the inscribed square of the reinforcing cage (1) are connected to extension rods (2). After the reinforcing cage (1) is hoisted and placed into the pile hole, the extension rods (2) can protrude from the hole opening. A positioning rod (3) is connected between the extension rods (2) located at opposite corners of the inscribed square. The positioning rods (3) are located outside the pile hole. The opening of the pile hole is connected to a cross rope (5) with its intersection point located at the center of the opening. The reinforcing cage (1) is adjusted so that the intersection point of the positioning rods (3) is aligned with the intersection point of the cross rope (5) to achieve the positioning of the reinforcing cage (1).

2. The drilling pile reinforcement cage hoisting and positioning structure according to claim 1, characterized in that: A reinforcing rod (4) is connected between adjacent extension rods (2), and the reinforcing rod (4) serves as a side of an inscribed square.

3. The drilling pile reinforcement cage hoisting and positioning structure according to claim 2, characterized in that: The extension rod (2) is a steel bar, and the extension rod (2) is connected to the longitudinal bars (1.1) of the steel cage (1).

4. The drilling pile reinforcement cage hoisting and positioning structure according to claim 3, characterized in that: Along the length of the extension rod (2), the spacing of the reinforcing rods (4) is 1 meter.

5. The drilling pile reinforcement cage hoisting and positioning structure according to claim 3, characterized in that: The extension rod (2) has the same number as the longitudinal reinforcement (1.1) of the steel cage (1), and the extension rod (2) and the longitudinal reinforcement (1.1) are connected by a steel sleeve.

6. The drilling pile reinforcement cage hoisting and positioning structure according to claim 2, characterized in that: The positioning rod (3) is located at the top of the extension rod (2), and the top of the extension rod (2) is also connected to a reinforcing rod (4).

7. The hoisting and positioning structure for a bored pile reinforcement cage according to claim 4, characterized in that: The reinforcing bar (4) is a steel bar, and the reinforcing bar (4) at the same elevation is formed by bending a whole steel bar.

8. The drilling pile reinforcement cage hoisting and positioning structure according to claim 7, characterized in that: The reinforcing rod (4) and the extension rod (2) are welded together.

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