Fabricated pile foundation for building construction

Abstract

The invention provides a fabricated pile foundation for building construction, and mainly relates to the technical field of building engineering. An assembly type pile foundation for building construction comprises single steel sheet piles, limiting clamping plates are fixedly installed on the two sides of each single steel sheet pile respectively, limiting clamping grooves matched with the limiting clamping plates are fixedly formed in the two sides of the top face of each single steel sheet pile respectively, and the multiple single steel sheet piles are linearly arranged to form a supporting row pile. The limiting clamping plates arranged on the opposite faces of every two adjacent single steel sheet piles are vertically connected with the corresponding limiting clamping grooves in an inserted mode, and every two adjacent single steel sheet piles are connected through a reinforcing assembly. The device has the beneficial effects that when the device is used for supporting a foundation pit, the connecting strength between the adjacent single steel sheet piles can be effectively improved through the vertical inserting design of the limiting clamping plates and the limiting clamping grooves and the use of reinforcing plates and fastening bolts in the reinforcing assemblies.

Description

Technical Field

[0001] The invention mainly relates to the technical field of construction engineering, and in particular to an assembled pile foundation for building construction. Background Art

[0002] Support pile foundation is a structural support system used in civil engineering. It is mainly used to maintain soil stability during excavation, prevent slope sliding or collapse, ensure construction safety and protect surrounding buildings from being affected. Many construction projects in cities are located in areas with dense existing buildings. A reasonably designed and implemented support pile solution can successfully complete the construction task without affecting the surrounding environment, avoiding problems such as ground subsidence caused by excavation that damage nearby houses or other important infrastructure. A good support system can significantly improve the safety of the construction site, reduce the risks of various accidents caused by geological instability, and ensure the personal safety of workers. The existing support pile foundation needs to build a support frame on the side during construction to improve the stability of the connection between adjacent single pile foundations. The construction process is complicated and the work efficiency is low.

[0003] The existing Chinese patent application with publication number CN 113089643 B discloses a high-strength pressure-bearing steel plate assembled protective pile foundation for construction, including a steel sheet pile assembly, the steel sheet pile assembly includes a front steel sheet pile, a rear steel sheet pile and a concrete top plate, the front steel sheet pile and the rear steel sheet pile are both composed of a linearly distributed single steel plate, and the beneficial effects are as follows: the present invention solves the problem of low lateral stiffness of the traditional steel sheet pile enclosure system by arranging assembled symmetrically installed steel sheet piles, the system is stressed as a whole, stable and reliable, the used steel sheet piles can be used repeatedly, and the pressure top connected between the enclosure steel sheet pile and the rear end anchor pile can be combined with the construction road, which can effectively reduce the project cost, ensure the safety of the surrounding environment, and meet the construction period requirements. A pile end rear anchor combined steel sheet pile enclosure structure system can be adopted, and the lateral stiffness of the steel sheet pile enclosure structure is enhanced by adding the rear end anchor pile, and the characteristics of rapid construction of the steel sheet pile maintenance system are fully utilized, while also increasing safety.

[0004] However, the protective pile foundation has the following defects when used: When the protective pile foundation in the prior art is in use, the cooperation between two adjacent single steel plates is achieved by the mutual insertion of the alignment groove and the alignment protrusion. Since the alignment groove and the alignment protrusion do not have a limiting effect when they are connected, the single steel plate is easily offset when inserted into the foundation. When the steel plate is used alone, the single steel plate causes a large offset during the process of embedding into the foundation. After the installation is completed, it is necessary to use the combination of locking plates, locking grooves and locking screws to fix it, which affects the construction efficiency. Summary of the invention

[0005] In order to solve the deficiencies of the prior art, the present invention provides an assembled pile foundation for construction, which is implemented by the following technical solutions: A prefabricated pile foundation for construction comprises a single steel sheet pile, wherein limit clamps are fixedly installed on both sides of the single steel sheet pile, and limit clamp grooves matching the limit clamps are fixedly installed on both sides of the top surface of the single steel sheet pile, and a plurality of the single steel sheet piles are linearly arranged to form a supporting pile row, and the limit clamps arranged on the opposite surfaces of two adjacent single steel sheet piles are vertically plugged into the corresponding limit clamp grooves, and the two adjacent single steel sheet piles are connected by a reinforcement component. Furthermore, the reinforcement component includes: A reinforcement plate, wherein a mounting groove is provided on the front of the single steel sheet pile, screw holes are provided at the upper and lower parts of both sides of the mounting groove, and through holes corresponding to the screw holes are provided at the four corners of the front of the reinforcement plate; The reinforcing plate is fixedly installed in the alignment groove by means of the fastening bolts, and the through holes on both sides of the reinforcing plate correspond to the adjacent screw holes on both sides of two adjacent single steel sheet piles.

[0006] Furthermore, two symmetrically arranged limiting plates are fixedly installed at the rear of the single steel sheet pile, and an I-beam reinforcement pile is inserted between the limiting plates relatively arranged on adjacent single steel sheet piles.

[0007] Furthermore, a groove is provided at the center of the reinforcement plate, and a through groove is provided on the top and bottom surfaces of the groove respectively, and the two through grooves are diagonally distributed, and sliding grooves are provided on the outer ends of the grooves respectively, and limiting grooves arranged opposite to the sliding grooves are provided on the top and bottom surfaces of the installation groove respectively, and a rotating shaft is rotatably installed in the groove, and the front end of the rotating shaft longitudinally penetrates the reinforcement plate and is connected to its bearing, a gear is fixedly installed on the rotating shaft, and a rack meshing with the gear is slidably installed in the through groove, and a plug-in plate capable of being inserted into the limiting groove is slidably installed in the slide groove, and the outer ends of the rack are fixedly connected to the opposite side of the corresponding plug-in plate.

[0008] Furthermore, the top and bottom surfaces of the groove are respectively provided with slots arranged opposite to the through groove on the same side, the inner ends of the racks are respectively inserted into the slots located on the same side, the slots are respectively fixedly installed with springs, and one end of the springs is respectively fixedly connected to a side opposite to the rack.

[0009] Furthermore, the front end of the rotating shaft is flush with the front of the reinforcing plate, and a hexagonal groove is provided at the front end of the rotating shaft.

[0010] Furthermore, the lower end of the single steel sheet pile is a conical structure.

[0011] Furthermore, compared with the prior art, the beneficial effects of the present invention are: 1. When the device is used for foundation pit support, the vertical plug-in design of the limit card plate and the limit card slot, as well as the use of the reinforcement plate and fastening bolts in the reinforcement assembly, can effectively improve the connection strength between adjacent single steel sheet piles, making the entire support pile row more stable; 2. By adding reinforcement plates to further connect adjacent single steel sheet piles, the integrity of the entire support pile row can be improved and the lateral support force for the foundation pit can be increased. The reinforcement plates not only increase the lateral connection between single steel sheet piles, but also further ensure the reliability of the connection through their internal mechanical locking mechanism (gears, racks, springs, etc.), thereby enhancing the overall compressive resistance of the support pile row. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a single steel sheet pile of the present invention; Figure 2 It is a side view structural schematic diagram of a single steel sheet pile of the present invention; Figure 3 It is a schematic diagram of the combined state of the supporting pile row of the present invention; Figure 4 It is a schematic diagram of the top view of the supporting pile row of the present invention; Figure 5 It is a structural schematic diagram of the reinforcement plate of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the reinforcement plate of the present invention.

[0013] The numbers shown in the attached drawings are: 1. Single steel sheet pile; 2. Limiting card plate; 3. Limiting card slot; 4. Support pile row; 5. Reinforcement plate; 6. Installation slot; 7. Screw hole; 8. Through hole; 9. Fastening bolt; 10. Limiting plate; 11. I-beam reinforcement pile; 12. Groove; 13. Through groove; 14. Slide groove; 15. Limiting slot; 16. Rotating shaft; 17. Gear; 18. Rack; 19. Plug-in plate; 20. Slot; 21. Spring; 22. Hexagonal groove. DETAILED DESCRIPTION

[0014] The present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope limited by the application.

[0015] Embodiment: A prefabricated pile foundation for building construction like Figure 1-6 As shown, a prefabricated pile foundation for building construction, the specific structure of which includes: A single steel sheet pile 1, wherein limit clamps 2 are fixedly installed on both sides of the single steel sheet pile 1, and limit slots 3 matching the limit clamps 2 are fixedly installed on both sides of the top surface of the single steel sheet pile 1, and several single steel sheet piles 1 are linearly arranged to form a supporting pile row 4, and the limit clamps 2 and corresponding limit slots 3 arranged on the opposite surfaces of two adjacent single steel sheet piles 1 are vertically plugged into each other, and the two adjacent single steel sheet piles 1 are connected by a reinforcement component. The reinforcement components include: A reinforcing plate 5, wherein a mounting groove 6 is provided on the front of the single steel sheet pile 1, screw holes 7 are provided at the upper and lower parts of both sides of the mounting groove 6, and through holes 8 corresponding to the screw holes 7 are provided at the four corners of the front of the reinforcing plate 5; The reinforcing plate 5 is fixedly installed in the installation groove 6 by means of the fastening bolts 9 , and the through holes 8 on both sides of the reinforcing plate 5 correspond to the screw holes 7 adjacent to both sides of two adjacent single steel sheet piles 1 .

[0016] When this structural design is in use, the reinforcement plate 5 is placed simultaneously in the installation groove 6 set in front of the two adjacent single steel sheet piles 1, and the through holes 8 on both sides are respectively aligned with the corresponding screw holes 7 on the two adjacent single steel sheet piles 1, and then the fastening bolts 9 are passed through the through holes 8 and screwed into the corresponding screw holes 7 for tightening, thereby realizing the installation of the reinforcement plate 5. The reinforcement plate 5 can be used to connect the two adjacent single steel sheet piles 1, thereby improving the integrity of the support pile row 4 during use and improving the compressive performance of the support pile row 4.

[0017] Two symmetrically arranged limiting plates 10 are fixedly installed behind the single steel sheet pile 1, and an I-beam reinforcement pile 11 is inserted between the limiting plates 10 arranged relatively on adjacent single steel sheet piles 1. By setting the I-beam reinforcement pile 11, the two adjacent single steel sheet piles 1 can be further fixed and limited, and the stability of the adjacent single steel sheet piles 1 after installation can be improved. By setting the I-beam reinforcement pile 11 behind the single steel sheet pile 1, the contact area between the single steel sheet pile 1 and the foundation pit after installation can be increased, and the grip of the single steel sheet pile 1 can be improved. The I-beam reinforcement pile 11 can also increase the supporting force of the single steel sheet pile 1, and further improve the supporting effect of the supporting pile row 4 on the foundation pit.

[0018] A groove 12 is provided at the center of the reinforcement plate 5, and a through groove 13 is provided on the top and bottom surfaces of the groove 12 respectively, and the two through grooves 13 are diagonally distributed, and a slide groove 14 is provided on the outer ends of the groove 12 respectively, and a limit groove 15 arranged opposite to the slide groove 14 is provided on the top and bottom surfaces of the mounting groove 6 respectively, and a rotating shaft 16 is rotatably installed in the groove 12, and the front end of the rotating shaft 16 longitudinally penetrates the reinforcement plate 5 and is connected to its bearing, and a gear 17 is fixedly installed on the rotating shaft 16, and the gear 17 is located in the groove 12, and a rack 18 meshing with the gear 17 is slidably installed in the through groove 13, and a plug-in plate 19 capable of inserting the limit groove 15 is slidably installed in the slide groove 14, and the outer ends of the rack 18 are fixedly connected to the opposite side of the corresponding plug-in plate 19.

[0019] When the device is in use, after the reinforcement plate 5 is installed, the shaft 16 can be rotated to drive the gear 17 connected thereto to rotate synchronously. When the gear 17 rotates, it can simultaneously push the rack 18 meshing therewith to move outward, so that the rack 18 pushes the plug-in plate 19 connected thereto to be inserted into the corresponding limit groove 15, which can prevent the reinforcement plate 5 from falling off during use and avoid the reinforcement plate 5 from falling off after the fastening bolts 9 are loosened, thereby further improving the stability of the device and ensuring the reinforcement effect of the reinforcement plate 5.

[0020] The top and bottom surfaces of the groove 12 are respectively provided with slots 20 arranged opposite to the through groove 13 on the same side, and the inner ends of the racks 18 are respectively inserted into the slots 20 on the same side, and the slots 20 are respectively fixedly installed with springs 21, and one end of the spring 21 is respectively fixedly connected to the opposite side of the rack 18.

[0021] When this structural design is in use, the spring 21 is always in a compressed state, that is, the spring 21 always applies outward pressure to the rack 18 connected thereto, which can prevent the rack 18 from loosening and moving into the groove 12 due to vibration when the single steel sheet pile 1 is in use. By applying pressure to the rack 18 by the spring 21, it can be ensured that the plug-in board 19 inserted into the corresponding limit groove 15 will not fall off easily, thereby improving the stability of the device.

[0022] The front end of the rotating shaft 16 is flush with the front face of the reinforcing plate 5 , and a hexagonal groove 22 is formed at the front end of the rotating shaft 16 .

[0023] When this structural design is in use, the user can easily rotate the shaft 16 by using a wrench in conjunction with the hexagonal groove 22. The shaft 16 is set flush with the front of the reinforcement plate 5 to prevent the shaft 16 from protruding outward and preventing the shaft 16 from being touched during construction.

[0024] The lower end of the single steel sheet pile 1 is a conical structure. The lower end of the single steel sheet pile 1 is a conical structure, which can be more easily inserted into the foundation and is convenient to use.

[0025] Working principle: Use a pile driver to drive the single steel sheet pile 1 into the foundation. Since the lower end of the single steel sheet pile 1 is a conical structure, it helps it to enter the soil more easily. During construction, ensure that the single steel sheet pile 1 is perpendicular to the ground and arranged linearly according to the predetermined position. The two adjacent single steel sheet piles 1 are plugged into each other through the limit card plate 2 and the limit card slot 3 to form a preliminary connection; then, put the reinforcement plate 5 into the installation slot 6 set in front of the two adjacent single steel sheet piles 1, so that the through hole 8 on the reinforcement plate 5 is aligned with the screw hole 7 on the single steel sheet pile 1, and use the fastening bolt 9 to pass through the through hole 8 of the reinforcement plate 5 and screw it into the corresponding screw hole 7 for tightening. Finally, insert the I-beam reinforcement pile 11 between the limit plates 10 behind the single steel sheet pile 1 to further enhance the stability between the adjacent single steel sheet piles 1. After the installation is completed, conduct a comprehensive safety inspection of the entire support pile row 4 to ensure that there are no loose or potential risk points, and confirm that all fasteners have been correctly and firmly installed in place.

[0026] In the explanation of the present invention, it should be noted that the terminology indicating the orientation is only for the convenience of description and understanding, and is not the only limitation on the installation position of the specific technical features, and does not exclude other possible installation methods.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An assembled pile foundation for building construction, comprising a single steel sheet pile (1), characterized in that: Limiting clamps (2) are fixedly mounted on both sides of the single steel sheet pile (1), and limiting grooves (3) matching the limiting clamps (2) are fixedly mounted on both sides of the top surface of the single steel sheet pile (1). A plurality of the single steel sheet piles (1) are linearly arranged to form a supporting pile row (4). The limiting clamps (2) and the corresponding limiting grooves (3) arranged on the opposite surfaces of two adjacent single steel sheet piles (1) are vertically plugged into each other, and the two adjacent single steel sheet piles (1) are connected via a reinforcement component.

2. The assembled pile foundation for construction according to claim 1, characterized in that: The reinforcement components include: A reinforcement plate (5), wherein a mounting groove (6) is provided on the front of the single steel sheet pile (1), screw holes (7) are provided at the upper and lower parts of both sides of the mounting groove (6), and through holes (8) corresponding to the screw holes (7) are provided at the four corners of the front of the reinforcement plate (5); The reinforcing plate (5) is fixedly installed in the installation groove (6) by means of the fastening bolts (9), and the through holes (8) on both sides of the reinforcing plate (5) respectively correspond to the adjacent screw holes (7) on both sides of two adjacent single steel sheet piles (1).

3. The assembled pile foundation for construction according to claim 1, characterized in that: Two symmetrically arranged limiting plates (10) are fixedly mounted on the rear of the single steel sheet pile (1), and an I-beam reinforcement pile (11) is inserted between the limiting plates (10) arranged opposite to each other on adjacent single steel sheet piles (1).

4. The assembled pile foundation for construction according to claim 2, characterized in that: A groove (12) is provided at the center of the reinforcing plate (5), and a through groove (13) is provided on the top and bottom surfaces of the groove (12), respectively. The two through grooves (13) are diagonally distributed, and a slide groove (14) is provided on the outer ends of the groove (12), and a limit groove (15) is provided on the top and bottom surfaces of the mounting groove (6) respectively. The limit groove (15) is arranged opposite to the slide groove (14), and a rotating shaft (16) is rotatably installed in the groove (12). The front end of the rotating shaft (16) longitudinally penetrates the reinforcing plate (5) and is connected to its bearing, and a gear (17) is fixedly installed on the rotating shaft (16), and a rack (18) meshing with the gear (17) is slidably installed in the through groove (13), and a plug-in board (19) capable of being inserted into the limit groove (15) is slidably installed in the slide groove (14), and the outer ends of the rack (18) are fixedly connected to the opposite side of the corresponding plug-in board (19).

5. The assembled pile foundation for construction according to claim 4, characterized in that: The top and bottom surfaces of the groove (12) are respectively provided with slots (20) arranged opposite to the through groove (13) on the same side, and the inner ends of the racks (18) are respectively inserted into the slots (20) on the same side, and the slots (20) are respectively fixedly mounted with springs (21), and one end of the spring (21) is respectively fixedly connected to a surface opposite to the rack (18).

6. The assembled pile foundation for construction according to claim 5, characterized in that: The front end of the rotating shaft (16) is flush with the front face of the reinforcing plate (5), and a hexagonal groove (22) is formed at the front end of the rotating shaft (16).

7. The assembled pile foundation for construction according to claim 1, characterized in that: The lower end of the single steel sheet pile (1) is a conical structure.

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