Cast-in-situ bored pile
By using the central rod, spiral blade and linkage rod structure in the drilling pile, the drilling space is expanded in the stable soil layer, and the deviation and low bearing capacity of the drilling piles in the prior art are solved in the construction of the weak formation in the prior art. The problem of this paper improves the pile quality and stability of cast-injected piles.
Patent Information
- Application Number
- CN202421162241.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-27
AI Technical Summary
When the existing reinforced concrete bored cast-injected piles are constructed in weak formations, the cast-injected pile deviation is large, the single pile ultimate bearing capacity is low, and the process effect is poor, which affects the drilling effect and the pile-forming quality of the cast-injected piles.
A drilling pile is designed, including a base plate, a drilling assembly and a support assembly. The drilling assembly adopts a central rod, a spiral blade, a circular hole and a linkage rod structure. By allowing the plug to leave the circular hole in the stabilized soil layer, it is linked. The rod extends into the soil layer to form a larger drilling space, and through the cooperation of the cylinder and the spring, a larger helical cross-sectional space is achieved.
The pile formation quality and stability effect of cast-injected piles are improved, and the problems of deviation and low bearing capacity of cast-injected piles during construction in weak formations are solved, which improves the drilling effect.
Smart Images
Figure CN222315080U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drilling and pouring equipment, in particular to a bored and poured pile. Background Art
[0002] Boring and grouting is a commonly used foundation treatment technology. Bored and cast-in-place piles refer to piles made by forming pile holes in the foundation soil at the construction site through mechanical drilling, steel pipe squeezing or manual excavation, and placing steel cages and pouring concrete inside. Bored and cast-in-place piles are a form of foundation structure widely used in buildings, bridges, docks, dams and other projects. They have the advantages of strong adaptability, high bearing capacity and convenient construction, and play an important role in various engineering construction.
[0003] Most existing buildings use reinforced concrete bored piles, and most of them are straight-hole bored piles with equal cross-sections. When constructing threaded bored piles in soft strata, the bored piles have large deviations, low ultimate bearing capacity of single piles, and poor process effects, which affect the drilling effect and the quality of the bored piles.
[0004] Therefore, it is necessary to provide a new bored pile to solve the above-mentioned technical problems. Utility Model Content
[0005] In order to solve the above technical problems, the utility model provides a bored cast-in-place pile which is convenient for improving the pile quality of the cast-in-place pile and enhancing the stability effect.
[0006] The bored cast-in-place pile provided by the utility model comprises a base plate, a drilling assembly and a supporting assembly, the base plate is provided with a through groove inside, and a fixing column is fixedly connected to the top of the base plate; the drilling assembly is arranged on the inner side of the through groove, the drilling assembly comprises a center rod, a spiral blade, a circular hole and a linkage rod, the inner side of the through groove is provided with a center rod, the outer side of the center rod is fixedly connected with a spiral blade, the inner side of the center rod is provided with a circular hole, and the inner side of the center rod is provided with a linkage rod; the supporting assembly is arranged at one end of the fixing column, the supporting assembly comprises a supporting plate, a through hole, a fixing plate and a stabilizing block, one end of the fixing column is provided with a supporting plate, the inner side of the supporting plate is provided with a through hole, both sides of the base plate are fixedly connected with fixing plates, and the top of the fixing plate is fixedly connected with a stabilizing block.
[0007] As a bored cast-in-place pile provided by the utility model, preferably, a plug is provided on the inner side of the circular hole, a spring is welded to one side of the plug, and one end of the spring is welded to the outer side of the linkage rod.
[0008] As a bored cast-in-place pile provided by the utility model, preferably, a connecting plate is fixedly connected to the top of the center rod, the inner side of the connecting plate is communicated with the inner side of the center rod, and a positioning rod is fixedly connected to the top of the connecting plate.
[0009] As a bored cast-in-place pile provided by the utility model, preferably, a sleeve is slidably connected to the outer side of the positioning rod, a first turntable is arranged on the top of the sleeve, and an axle seat is arranged on the inner ring of the first turntable.
[0010] As a bored cast-in-place pile provided by the utility model, preferably, a first connecting rod is arranged on the inner side of the shaft seat, one end of the first connecting rod is fixedly connected to a cylinder, and the other end of the first connecting rod is fixedly connected to one end of a linkage rod.
[0011] As a bored cast-in-place pile provided by the utility model, preferably, the outer side of the first turntable is connected to the second turntable through a belt drive, and the inner ring of the second turntable is provided with a second connecting rod.
[0012] As a bored cast-in-place pile provided by the utility model, preferably, one end of the second connecting rod is fixedly connected to a motor, and the top of the motor is fixedly connected to the bottom of the support plate.
[0013] As a bored cast-in-place pile provided by the utility model, preferably, one side of the stabilizing block is fixedly connected to one side of the fixing plate, bolts are arranged inside the fixing plate, and a stabilizing rod is fixedly connected to the bottom of the fixing plate.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] When the bored pile is in a general stratum, the two plugs always keep blocking the two circular holes. When drilling into a certain stable soil layer, pressure is applied to the linkage rod so that the plugs leave the circular holes, the linkage rod extends into the soil layer, and the drilling operation is continued, which is conducive to forming a larger drilling space. After pouring concrete, a larger spiral cross-section space is formed, the pile quality of the bored pile is improved, and the drilling effect is improved. This solves the problem that most existing buildings use reinforced concrete bored piles, and most of them are equal-section straight-hole bored piles. When threaded bored piles are constructed in soft strata, the bored piles have large deviations, the ultimate bearing capacity of a single pile is low, the process effect is poor, and the drilling effect and the pile quality of the bored pile are affected. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A structural schematic diagram of a preferred embodiment of the bored cast-in-place pile provided by the utility model;
[0017] Figure 2 for Figure 1 A schematic diagram of the structure of the novel drilling assembly shown;
[0018] Figure 3 for Figure 1 A schematic structural diagram of the novel connecting disk and the first connecting rod shown;
[0019] Figure 4 for Figure 1 Schematic diagram of the structure of the new support assembly shown.
[0020] Numbers in the figure: 1. Base plate; 2. Through groove; 3. Fixed column; 4. Drilling assembly; 41. Center rod; 42. Spiral blade; 43. Round hole; 44. Linkage rod; 5. Support assembly; 51. Support plate; 52. Through hole; 53. Fixed plate; 54. Stabilizing block; 6. Plug; 7. Spring; 8. Connecting plate; 9. Positioning rod; 10. Sleeve; 11. First turntable; 12. Shaft seat; 13. First connecting rod; 14. Cylinder; 15. Second turntable; 16. Second connecting rod; 17. Motor; 18. Bolt; 19. Stabilizing rod. DETAILED DESCRIPTION
[0021] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.
[0022] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in Figure 1 A structural schematic diagram of a preferred embodiment of the bored cast-in-place pile provided by the utility model; Figure 2 for Figure 1 A schematic diagram of the structure of the novel drilling assembly shown; Figure 3 for Figure 1 A schematic structural diagram of the novel connecting disk and the first connecting rod shown; Figure 4 for Figure 1 A structural schematic diagram of a novel support assembly is shown. A bored pile comprises a bottom plate 1, a through groove 2 is provided inside the bottom plate 1, and a fixing column 3 is fixedly connected to the top of the bottom plate 1;
[0023] In the specific implementation process, Figure 1 , Figure 2 and Figure 3 As shown, the drilling assembly 4 is arranged on the inner side of the through groove 2, and the drilling assembly 4 includes a center rod 41, a spiral blade 42, a circular hole 43 and a linkage rod 44. The center rod 41 is arranged on the inner side of the through groove 2, the spiral blade 42 is fixedly connected to the outer side of the center rod 41, a circular hole 43 is opened inside the center rod 41, and a linkage rod 44 is arranged on the inner side of the center rod 41.
[0024] A plug 6 is provided inside the circular hole 43 , a spring 7 is welded to one side of the plug 6 , and one end of the spring 7 is welded to the outer side of the linkage rod 44 .
[0025] A connecting plate 8 is fixedly connected to the top of the center rod 41 , the inner side of the connecting plate 8 is communicated with the inner side of the center rod 41 , and a positioning rod 9 is fixedly connected to the top of the connecting plate 8 .
[0026] The outer side of the positioning rod 9 is slidably connected with a sleeve 10 , the top of the sleeve 10 is provided with a first rotating disk 11 , and the inner ring of the first rotating disk 11 is provided with a shaft seat 12 .
[0027] A first connecting rod 13 is disposed inside the shaft seat 12 . One end of the first connecting rod 13 is fixedly connected to the cylinder 14 , and the other end of the first connecting rod 13 is fixedly connected to one end of the linkage rod 44 .
[0028] The outer side of the first rotating disk 11 is connected to the second rotating disk 15 via a belt transmission, and the inner ring of the second rotating disk 15 is provided with a second connecting rod 16 .
[0029] One end of the second connecting rod 16 is fixedly connected to the motor 17 , and the top of the motor 17 is fixedly connected to the bottom of the support plate 51 .
[0030] It should be noted that the center rod 41 is hollow in design, and a spiral blade 42 is arranged on the outer side of the center rod 41 in a spiral shape. Two circular holes 43 are opened on the outer side of the center rod 41. When in a general stratum, the two plugs 6 always keep blocking the two circular holes 43. Driven by the motor 17, the second connecting rod 16 drives the second turntable 15 to rotate. Under the transmission action of the belt, the first turntable 11 drives the connecting disk 8 and the center rod 41 to rotate under the connection of the sleeve 10 and the positioning rod 9. When the center rod 41 and the spiral blade 42 drill into a certain soil layer, the soil layer at this time is a relatively stable soil layer. Driven by the cylinder 14, the first connecting rod 13 applies pressure to the linkage rod 44. Under the action of the spring 7, the plug 6 is driven to move, so that the plug 6 leaves the circular hole 43, and the linkage rod 44 extends into the soil layer and continues to rotate, forming a larger drilling space. After pouring concrete, a larger spiral cross-sectional space is formed, thereby improving the pile quality of the bored pile.
[0031] refer to Figure 1 and Figure 4 As shown, the support assembly 5 is arranged at one end of the fixed column 3, and the support assembly 5 includes a support plate 51, a through hole 52, a fixed plate 53 and a stabilizing block 54. The support plate 51 is arranged at one end of the fixed column 3, and a through hole 52 is opened inside the support plate 51. The fixing plates 53 are fixedly connected to both sides of the base plate 1, and the top of the fixing plate 53 is fixedly connected to the stabilizing block 54.
[0032] One side of the stabilizing block 54 is fixedly connected to one side of the fixing plate 53 . Bolts 18 are provided inside the fixing plate 53 . A stabilizing rod 19 is fixedly connected to the bottom of the fixing plate 53 .
[0033] It should be noted that the support plate 51 plays a supporting and connecting role, the through hole 52 provides space for the operation of the first connecting rod 13, and the four stabilizing blocks 54 are helpful to enhance the stability of the connection between the fixing plate 53 and the base plate 1. The four stabilizing rods 19 are controlled to extend into the ground to support and fix the base plate 1. Under the action of multiple bolts 18, it is convenient to fix the base plate 1 to the ground to enhance the stabilization effect.
[0034] The working principle of a bored pile provided by the utility model is as follows:
[0035] When in use, the center rod 41 is hollow in design, and the linkage rod 44 is placed on the inner side of the center rod 41. In general strata, the two plugs 6 always keep blocking the two circular holes 43. When the center rod 41 and the spiral blades 42 drill into a certain soil layer, the soil layer at this time is a relatively stable soil layer. Under the drive of the cylinder 14, the first connecting rod 13 applies pressure to the linkage rod 44. Under the action of the spring 7, the plug 6 is driven to move, so that the plug 6 leaves the circular hole 43, and the linkage rod 44 extends into the soil layer to continue the drilling operation, which is conducive to forming a larger drilling space. After pouring concrete, a larger spiral cross-sectional space is formed, which improves the pile quality of the bored pile. The base plate 1 is connected by the fixing plates 53 and multiple stabilizing blocks 54 on both sides. By controlling the four stabilizing rods 19 to extend into the ground, the base plate 1 is supported and fixed. Under the action of the bolts 18, it is convenient to fix the base plate 1 to the ground, which is conducive to improving the stabilization effect.
[0036] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A bored pile, characterized in that: include: A bottom plate (1), wherein a through groove (2) is provided inside the bottom plate (1), and a fixing column (3) is fixedly connected to the top of the bottom plate (1); A drilling assembly (4), the drilling assembly (4) being arranged on the inner side of the through groove (2), the drilling assembly (4) comprising a center rod (41), a spiral blade (42), a circular hole (43) and a linkage rod (44), the center rod (41) being arranged on the inner side of the through groove (2), the spiral blade (42) being fixedly connected to the outer side of the center rod (41), the circular hole (43) being opened inside the center rod (41), and the linkage rod (44) being arranged on the inner side of the center rod (41); A support assembly (5), wherein the support assembly (5) is arranged at one end of the fixed column (3), and the support assembly (5) comprises a support plate (51), a through hole (52), a fixed plate (53) and a stabilizing block (54). The support plate (51) is arranged at one end of the fixed column (3), a through hole (52) is provided inside the support plate (51), both sides of the bottom plate (1) are fixedly connected to the fixed plate (53), and the top of the fixed plate (53) is fixedly connected to the stabilizing block (54).
2. The bored pile according to claim 1, characterized in that: A plug (6) is provided on the inner side of the circular hole (43), a spring (7) is welded to one side of the plug (6), and one end of the spring (7) is welded to the outer side of the linkage rod (44).
3. The bored pile according to claim 1, characterized in that: The top of the center rod (41) is fixedly connected to a connection disk (8), the inner side of the connection disk (8) is communicated with the inner side of the center rod (41), and the top of the connection disk (8) is fixedly connected to a positioning rod (9).
4. The bored pile according to claim 3, characterized in that: The outer side of the positioning rod (9) is slidably connected with a sleeve (10), the top of the sleeve (10) is provided with a first rotating disk (11), and the inner ring of the first rotating disk (11) is provided with a shaft seat (12).
5. The bored pile according to claim 4, characterized in that: A first connecting rod (13) is arranged on the inner side of the shaft seat (12), one end of the first connecting rod (13) is fixedly connected to the cylinder (14), and the other end of the first connecting rod (13) is fixedly connected to one end of the linkage rod (44).
6. The bored pile according to claim 4, characterized in that: The outer side of the first rotating disk (11) is connected to the second rotating disk (15) via a belt drive, and the inner ring of the second rotating disk (15) is provided with a second connecting rod (16).
7. The bored pile according to claim 6, characterized in that: One end of the second connecting rod (16) is fixedly connected to a motor (17), and the top of the motor (17) is fixedly connected to the bottom of the support plate (51).
8. The bored pile according to claim 1, characterized in that: One side of the stabilizing block (54) is fixedly connected to one side of the fixing plate (53), a bolt (18) is provided inside the fixing plate (53), and a stabilizing rod (19) is fixedly connected to the bottom of the fixing plate (53).