A non-excavation hollow anti-slide pile based on a sinking well

Abstract

The utility model discloses a non - excavation hollow core anti - slide stake based on sinking well belongs to concrete precast pile technical field, including stake body, the horizontal section of stake body is hollow rectangular, still include end plate and adjustable inside support support subassembly, end plate fixedly connected in the lower end of stake body, adjustable inside support support subassembly detachably connected in the inner wall of stake body, adjustable inside support support subassembly is used for playing the supporting effect to the inner wall of stake body to improve the overall strength of stake body, stake body is opened with multiple groups equidistance distribution's hollow hole, hollow hole penetrates the upper and lower outer wall of stake body, and the inner wall fixed connection of hollow hole has main reinforcement, and stake body lower end four corners place is opened with multiple groups equidistance distribution's connecting hole, and connecting hole is used for the fixed between two stake body. Through above -mentioned mode, detachable inside support structure is arranged in hollow anti - slide stake, and the overall strength of hollow core pile is further improved while convenient installation.

Description

Technical Field

[0001] This utility model relates to the field of precast concrete pile technology, specifically to a non-excavation hollow anti-slide pile based on a caisson. Background Technology

[0002] Precast concrete antislip piles are a reliable slope protection component that combines the advantages of precast concrete technology with the reliability of pile foundation engineering, playing an important role in modern civil engineering.

[0003] Existing technologies have made many improvements in this area. For example, Chinese patent CN106894412B discloses a precast hollow concrete square pile, comprising a pile tip, a first pile body, vertical main reinforcement bars, horizontal stirrups, a butt joint, a butt joint pile head, a second pile body, an impact-bearing end, a hollow circular hole, a first concrete layer, a second concrete layer, a butt joint sealing ring, a third concrete layer, a moisture-proof layer, and a butt joint groove. The first pile body is located on the right side of the pile tip. Vertical main reinforcement bars and horizontal stirrups are installed inside the first pile body. The second concrete layer and the butt joint sealing ring are located outside the first concrete layer. The third concrete layer is installed outside the butt joint sealing ring, and the moisture-proof layer is located outside the third concrete layer. This precast hollow concrete square pile can save materials and facilitate installation to a certain extent.

[0004] However, it still has the following shortcomings in practical applications: 1. The hollow square pile is not equipped with an internal bracing structure, making it difficult to guarantee the overall strength and stability of the hollow pile; 2. The hollow square piles do not have a connection and fixing method between different square piles, and also lack a support structure fixed to the ground, which limits their reliability and adaptability for slope protection.

[0005] Based on this, this utility model designs a non-excavation hollow anti-slide pile based on a caisson to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, this utility model provides a non-excavation hollow anti-slide pile based on a caisson.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A trenchless hollow anti-slide pile based on a caisson includes a pile body with a horizontal cross-section of a hollow rectangle, an end plate, and an adjustable internal bracing support assembly. The end plate is fixedly connected to the lower end of the pile body, and the adjustable internal bracing support assembly is detachably connected to the inner wall of the pile body. The adjustable internal bracing support assembly is used to support the inner wall of the pile body to improve the overall strength of the pile body. Multiple sets of equidistant hollow holes are opened on the pile body, and the hollow holes penetrate the upper and lower outer walls of the pile body. The inner wall of the hollow holes is fixedly connected with main reinforcement bars. Multiple sets of equidistant connecting holes are opened at the four corners of the lower end of the pile body, and the connecting holes are used for fixing two sets of pile bodies.

[0008] Furthermore, transverse reinforcing bars are fixedly connected inside the pile, and the crisscrossing arrangement of the reinforcing bars and main reinforcement improves the overall strength of the pile.

[0009] Furthermore, multiple sets of equally spaced anchor bars are welded to the upper end of the end plate. The anchor bars are staggered with the main bars and are fixedly connected inside the pile body. The outer wall of the upper end of the end plate is welded to the outer wall of the lower end of the pile body.

[0010] Furthermore, the adjustable internal bracing fixing assembly includes a sleeve, a sleeve column, and a column head. Two sets of symmetrical internal bracing grooves are opened on the inner wall of the pile body. The internal bracing grooves are U-shaped grooves. One side of the internal bracing groove is used to accommodate the end of the sleeve away from the column head, and the other side of the internal bracing groove is used to accommodate the end of the column head away from the sleeve. The inner wall of the sleeve is threaded to the outer wall of the sleeve column, and the column head is fixedly connected to the sleeve column.

[0011] Furthermore, the two sets of piles are fixedly connected end to end by welded connecting plates, and four sets of welded connecting plates are fixedly connected to the outer walls of the four corners of the two sets of piles respectively.

[0012] Furthermore, the welded connecting plate is an L-shaped angle steel, and multiple sets of fixing reinforcing bars are welded to the upper end of the welded connecting plate. The number of sets of fixing reinforcing bars is the same as the number of sets of connecting holes and corresponds one-to-one. The fixing reinforcing bars are welded into the connecting holes, and the outer walls of the four sets of welded connecting plates are fixedly connected to the two sets of piles by welding.

[0013] Furthermore, adjacent hollow anti-slide piles are connected by scissor lift assemblies.

[0014] Furthermore, the scissor lift assembly includes an upper connecting frame, a lower connecting frame, a first connecting post, a second connecting post, and a pin. Two sets of symmetrically distributed upper and lower connecting frames are fixedly connected to the inner outer walls of the two piles. One end of the first and second connecting posts is hinged to the upper connecting frame, and the other end of the first and second connecting posts is hinged to the first connecting post. The first and second connecting posts are hinged together by a pin.

[0015] Compared with the prior art, the advantages of this utility model are as follows: 1. A detachable internal support structure is provided in the hollow anti-slide pile, which facilitates installation and further improves the overall strength of the hollow pile. 2. Different hollow piles can be reliably connected by welding connecting plates and steel bars, which improves the applicability of anti-slide piles at different depths; 3. Hollow piles can be connected by scissor lift assemblies, which further improves the overall performance of anti-slide piles. Attached Figure Description

[0016] 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.

[0017] Figure 1 This utility model relates to a three-dimensional, trenchless hollow anti-slide pile based on a caisson. Figure 1 ; Figure 2 This is a front view of a trenchless hollow anti-slide pile based on a caisson according to the present invention; Figure 3 This utility model relates to a three-dimensional, trenchless hollow anti-slide pile based on a caisson. Figure 2 ; Figure 4 For along Figure 2 A sectional view along the AA direction; Figure 5 This is a schematic diagram of the structure of the two sets of hollow anti-slide piles connected end to end according to this utility model; Figure 6 This is a schematic diagram of the structure in Embodiment 2 of this utility model.

[0018] The labels in the diagram represent: 1. Pile body; 2. Hollow hole; 3. Main reinforcement; 4. End plate; 5. Welded connection plate; 6. Sleeve; 7. Sleeve column; 8. Column head; 9. Upper connecting frame; 10. Lower connecting frame; 11. First connecting column; 12. Second connecting column; 13. Pin shaft; 14. Inner support groove; 15. Connecting hole. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0021] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-6 A non-excavation hollow anti-slide pile based on a caisson includes a pile body 1, the horizontal cross section of which is a hollow rectangle, and also includes an end plate 4 and an adjustable internal bracing support assembly. The end plate 4 is fixedly connected to the lower end of the pile body 1, and the adjustable internal bracing support assembly is detachably connected to the inner wall of the pile body 1. The adjustable internal bracing support assembly is used to support the inner wall of the pile body 1 to improve the overall strength of the pile body 1. Multiple sets of equidistant hollow holes 2 are opened on the pile body 1. The hollow holes 2 penetrate the upper and lower outer walls of the pile body 1. The inner wall of the hollow holes 2 is fixedly connected with the main reinforcement 3. Multiple sets of equidistant connecting holes 15 are opened at the four corners of the lower end of the pile body 1. The connecting holes 15 are used for fixing between two sets of pile bodies 1.

[0022] The rectangular cross section can specifically enhance the bending stiffness. By adjusting the length-to-width ratio, the bending moment of inertia in the long side direction can be increased, making it more suitable for bearing the lateral earth pressure of the foundation pit. Transverse steel bars are also fixedly connected inside the pile body 1. The steel bars and main reinforcement 3 are arranged in a crisscross pattern to improve the overall strength of the pile body 1.

[0023] Multiple sets of equally spaced anchor bars are welded to the upper end of the end plate 4. The anchor bars are staggered with the main reinforcement 3 and are fixedly connected inside the pile body 1. The upper outer wall of the end plate 4 is welded to the lower outer wall of the pile body 1.

[0024] The adjustable internal support fixing assembly includes a sleeve 6, a sleeve column 7, and a column head 8. Two sets of symmetrical internal support grooves 14 are provided on the inner wall of the pile body 1. The internal support grooves 14 are U-shaped grooves. One side of the internal support groove 14 is used to accommodate the end of the sleeve 6 away from the column head 8, and the other side of the internal support groove 14 is used to accommodate the end of the column head 8 away from the sleeve 6. The inner wall of the sleeve 6 is threaded to the outer wall of the sleeve column 7, and the column head 8 is fixedly connected to the sleeve column 7.

[0025] The two sets of piles 1 are fixedly connected end to end by welded connecting plates 5, and the four sets of welded connecting plates 5 are respectively fixedly connected to the outer walls of the four corners of the two sets of piles 1.

[0026] The welded connecting plate 5 is an L-shaped angle steel. Multiple sets of fixed reinforcing bars are welded to the upper end of the welded connecting plate 5. The number of sets of fixed reinforcing bars is the same as the number of sets of connecting holes 15 and they correspond one-to-one. The fixed reinforcing bars are welded into the connecting holes 15. The outer walls of the four sets of welded connecting plates 5 are fixedly connected to the two sets of pile bodies 1 by welding.

[0027] In this utility model, the pile body 1 is placed in the caisson trough at the landslide site where support is required. The longitudinal main reinforcement 3 in the hollow hole 2 resists the tensile force generated by the bending moment, and the transverse main reinforcement 3 in the pile body 1 resists the shear force. The sleeve 6, sleeve column 7 and column head 8 are moved down to the lower end of the inner support groove 14, and the sleeve column 7 and column head 8 are rotated so that the two ends of the sleeve 6 and column head 8 are pressed against the inner support groove 14, thereby playing the role of inner support. If the height of pile 1 is insufficient, multiple sets of pile 1 can be connected end to end. The end plate 4 on the upper pile 1 is connected to the upper end of the lower pile 1, and then the adjacent two sets of pile 1 are welded and fixed by welding the connecting plate 5 and the connecting hole 15.

[0028] Example 2: In some embodiments, such as Figure 6 As shown, in a preferred embodiment of this utility model, adjacent hollow anti-slide piles are connected by a scissor assembly.

[0029] The scissor lift assembly includes an upper connecting frame 9, a lower connecting frame 10, a first connecting post 11, a second connecting post 12, and a pin 13. The two sets of symmetrically distributed upper connecting frames 9 and lower connecting frames 10 are fixedly connected to the inner outer walls of the two pile bodies 1. One end of the first connecting post 11 and the second connecting post 12 is hinged to the upper connecting frame 9, and the other end of the first connecting post 11 and the second connecting post 12 is hinged to the first connecting post 11. The first connecting post 11 and the second connecting post 12 are hinged together by the pin 13.

[0030] In this utility model, two adjacent sets of hollow anti-slide piles are connected by the cooperation of the upper connecting frame 9, the lower connecting frame 10, the first connecting column 11, the second connecting column 12 and the pin 13, thereby improving the overall anti-slide strength of the anti-slide piles.

[0031] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A trenchless hollow anti-slide pile based on a caisson, comprising a pile body (1), wherein the horizontal cross-section of the pile body (1) is a hollow rectangle, characterized in that: It also includes an end plate (4) and an adjustable internal support assembly. The end plate (4) is fixedly connected to the lower end of the pile body (1). The adjustable internal support assembly is detachably connected to the inner wall of the pile body (1). The adjustable internal support assembly is used to support the inner wall of the pile body (1) to improve the overall strength of the pile body (1). Multiple sets of equidistant hollow holes (2) are opened on the pile body (1). The hollow holes (2) penetrate the upper and lower outer walls of the pile body (1). The inner wall of the hollow holes (2) is fixedly connected with the main reinforcement (3). Multiple sets of equidistant connecting holes (15) are opened at the four corners of the lower end of the pile body (1). The connecting holes (15) are used for fixing between two sets of pile bodies (1).

2. The trenchless hollow anti-slide pile based on a caisson according to claim 1, characterized in that, The pile body (1) is also fixedly connected with transverse steel bars. The steel bars and main reinforcement (3) are arranged in a cross pattern to improve the overall strength of the pile body (1).

3. The trenchless hollow anti-slide pile based on a caisson according to claim 1, characterized in that, Multiple sets of equally spaced anchor bars are welded to the upper end of the end plate (4). The anchor bars are staggered with the main bars (3). The anchor bars are fixedly connected inside the pile body (1). The upper outer wall of the end plate (4) is welded to the lower outer wall of the pile body (1).

4. The trenchless hollow anti-slide pile based on a caisson according to claim 1, characterized in that, The adjustable internal support fixing assembly includes a sleeve (6), a sleeve column (7) and a column head (8). Two sets of symmetrical internal support grooves (14) are provided on the inner wall of the pile body (1). The internal support groove (14) is a U-shaped groove. One side of the internal support groove (14) is used to accommodate the end of the sleeve (6) away from the column head (8), and the other side of the internal support groove (14) is used to accommodate the end of the column head (8) away from the sleeve (6). The inner wall of the sleeve (6) is threadedly connected to the outer wall of the sleeve column (7), and the column head (8) is fixedly connected to the sleeve column (7).

5. The trenchless hollow anti-slide pile based on a caisson according to claim 1, characterized in that, The two sets of piles (1) are fixedly connected end to end by welding connection plates (5), and the four sets of welding connection plates (5) are fixedly connected to the outer walls of the four corners of the two sets of piles (1).

6. The trenchless hollow anti-slide pile based on a caisson according to claim 5, characterized in that, The welded connecting plate (5) is an L-shaped angle steel. Multiple sets of fixed reinforcing bars are welded to the upper end of the welded connecting plate (5). The number of fixed reinforcing bars is the same as the number of connecting holes (15) and corresponds one-to-one. The fixed reinforcing bars are welded into the connecting holes (15). The outer walls of the four sets of welded connecting plates (5) are fixedly connected to the two sets of pile bodies (1) by welding.

7. The trenchless hollow anti-slide pile based on a caisson according to claim 1, characterized in that, Adjacent hollow anti-slide piles are connected by scissor lift assemblies.

8. The trenchless hollow anti-slide pile based on a caisson according to claim 7, characterized in that, The scissor lift assembly includes an upper connecting frame (9), a lower connecting frame (10), a first connecting post (11), a second connecting post (12), and a pin (13). The two sets of symmetrically distributed upper connecting frames (9) and lower connecting frames (10) are fixedly connected to the inner outer walls of the two piles (1). One end of the first connecting post (11) and the second connecting post (12) is hinged to the upper connecting frame (9), and the other end of the first connecting post (11) and the second connecting post (12) is hinged to the first connecting post (11). The first connecting post (11) and the second connecting post (12) are hinged together by the pin (13).

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