Building pile-anchor supporting structure of double-row combined pile

Abstract

The application belongs to the technical field of building construction, and discloses a building pile anchor supporting structure of double-row combined piles, which comprises two rows of pile bodies for being inserted into the ground below to provide support, sleeve pipes connected to the pile bodies for protecting and positioning pull rods, anchoring bodies arranged at one end of the pull rods for fixing the pull rods to the ground below, the pull rods penetrating through the sleeve pipes and being connected with the anchoring bodies for providing pulling force to stabilize the pile bodies, anchors arranged at the other end of the pull rods for fixing the pull rods, and a fixing structure comprising a transverse limiting plate, a vertical limiting plate, a deflection rod, a plug rod, an inner lining, a first magnetic ring and a second magnetic ring, which enhances the stability of the sleeve pipes in the foundation, and meanwhile, the insertion of the transverse limiting plate and the vertical limiting plate not only increases the friction between the sleeve pipes and the foundation soil, but also effectively limits the horizontal and vertical displacement of the sleeve pipes, thereby improving the anti-deformation capacity of the whole supporting structure.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, and in particular relates to a building pile anchor support structure for double-row combined piles. Background Technology

[0002] In the field of building construction technology, pile-anchor support structure is a commonly used method for slope stabilization and foundation pit support. Although traditional single-row pile or single-anchor support structure can meet the engineering requirements to a certain extent, its effect and stability are often unsatisfactory under complex geological conditions and large-scale soil reinforcement. In particular, traditional support methods may be insufficient in some cases where they need to withstand greater pressure and have higher requirements for seepage prevention.

[0003] The double-row composite pile anchor support structure overcomes the shortcomings of traditional support structures. By increasing lateral bracing, it improves the stability of individual support structures and enhances waterproofing and bearing capacity. Its unique structural design not only improves overall stiffness but also enhances resistance to external loads, making it particularly effective when dealing with soft soil layers or areas with abundant groundwater. Furthermore, this structure can better resist lateral pressure, reduce soil slippage, and effectively maintain the stability of slopes and foundation pits.

[0004] Therefore, double-row composite pile building pile anchor support structure has been widely used in various slope and foundation pit support projects in water conservancy and hydropower projects, providing more reliable support and protection; The casing of the pile anchor is placed directly inside the soil, which prevents the casing from being fully inserted into the soil, resulting in insufficient contact with the stratum and thus reducing the stability of the support structure. Summary of the Invention

[0005] This invention addresses the problem in existing technologies where the casing is directly placed inside the soil, resulting in insufficient insertion of the casing into the soil and inadequate contact with the ground, thus reducing the stability of the support structure. The invention proposes the following technical solution: A double-row composite pile anchor support structure for buildings, comprising: Two rows of piles are inserted below the ground to provide support; A sleeve, connected to the pile body, is used to protect and position the tie rod; An anchor body is provided at one end of the tie rod to fix the tie rod below the ground. A tie rod, passing through the sleeve and connected to the anchor body, is used to provide tension to stabilize the pile. An anchor, located at the other end of the tie rod, is used to fix the tie rod in place; The fixed structure includes a horizontal limiting plate, a vertical limiting plate, a deflection rod, an insert rod, an inner liner, a first magnetic ring, and a second magnetic ring. The deflection rod is movably connected to the inside of the sleeve, and its bottom end face is in contact with the end face of the pile body away from the anchor. The horizontal limiting plate and the vertical limiting plate are both vertically movably connected to the inside of the sleeve. The insert rod is obliquely movably connected to the inside of the horizontal limiting plate. A first magnetic ring is installed inside the sleeve, and a second magnetic ring is connected to the outside of the inner liner. When the magnetic poles of the opposite surfaces of the second magnetic ring and the first magnetic ring are the same, they drive the horizontal limiting plate and the vertical limiting plate to move vertically.

[0006] As a preferred embodiment of the above technical solution, a capping beam is sleeved between the top ends of the two rows of piles. The capping beam is used to connect the two rows of piles into a whole. A bracket is fixedly installed on one end face of the pile near the anchor and located outside the tie rod. A platform is movably connected to the top of the bracket and located outside the tie rod. The anchor is located at the end of the tie rod and fits against one end of the platform. Two sets of crossbeams are provided between the platform and the opposite face of the first row of piles.

[0007] As a preferred embodiment of the above technical solution, a sheath is welded to one end face of the inner lining, and the one end face of the sheath is in close contact with the one end face of the base. A deflection groove is provided at the bottom of the outer surface of the sleeve. The deflection rod is movably connected to the inside of the inner lining and is movably located inside the deflection groove. A fixing pin is connected through the inside of the deflection rod and is fixedly installed inside the inner lining. An inclination angle is provided on the end face of the deflection rod near the fixing pin.

[0008] As a preferred embodiment of the above technical solution, both the horizontal limiting plate and the vertical limiting plate are welded with sliders at their bottom ends, and a magnet is connected through the slider, which is attracted to the outside of the inner lining.

[0009] As a preferred embodiment of the above technical solution, a positioning post is connected through the interior of the perpendicular end faces of the horizontal limiting plate and the vertical limiting plate. The positioning post is welded to the inside of the sleeve. A placement groove is provided on the outer surface of the inner liner at the bottom position of the slider. The cross-section of the placement groove is stepped. The slider is T-shaped. An inclined groove is provided on one end face of the slider. The cross-section of the placement groove is stepped. The end face of the placement groove near the anchor is set as an inclined surface. The inclined groove of the slider and the inclined surface of the placement groove fit together.

[0010] As a preferred embodiment of the above technical solution, a drainage groove is provided inside the transverse limiting plate at the position corresponding to the outer side of the insertion rod. A horizontally placed fixed tube is provided on one end face of the transverse limiting plate at one end of the drainage groove. An extrusion plate is movably connected inside the fixed tube. Lubricating oil is provided between the opposite surfaces of the insertion rod and the extrusion plate.

[0011] As a preferred embodiment of the above technical solution, a cylinder is symmetrically embedded and installed on the outer side of the liner at the position inside the placement groove. The outer diameter of the cylinder is smaller than the inner diameter of the fixed tube, and a spring is welded between one end face of the liner and the inner wall of the sleeve.

[0012] As a preferred embodiment of the above technical solution, a fixing sleeve is snapped onto the inner side of the lining, a protrusion is welded to one end face of the fixing sleeve, and a guide groove is provided inside the sleeve at the position corresponding to one end of the protrusion.

[0013] As a preferred embodiment of the above technical solution, a gap is provided between the protrusion and the guide groove, and the width of the gap is 1-5 mm.

[0014] The beneficial effects of this invention are as follows: (1) It enhances the stability of the casing in the foundation. At the same time, the insertion of the horizontal limiting plate and the vertical limiting plate not only increases the friction between the casing and the foundation soil, but also effectively limits the horizontal and vertical displacement of the casing, thereby improving the deformation resistance of the entire support structure. (2) Increase the contact range between the transverse limiting plate and the soil inside the ground, further enhance the stability of the lining, and thus improve the stability of the casing, thereby improving the pull-out performance and overall stability of the casing. In addition, this automated adjustment mechanism does not require manual intervention and can be adjusted in real time according to the actual stress situation, improving the self-adaptability and reliability of the support structure. (3) The support force of the casing is increased, which further stabilizes the entire support structure. This series of actions forms an automated mechanical transmission and reinforcement mechanism. No additional manual intervention is required. It can automatically adjust and enhance the support force according to the actual stress of the support structure, thereby improving the self-adaptability and stability of the support system. Attached Figure Description

[0015] Figure 1 The diagram shown is a structural schematic of a double-row combined pile anchor support structure in Embodiment 1. Figure 2 The image shown is a front view of a double-row composite pile building pile anchor support structure according to Embodiment 1; Figure 3 The diagram shown is a schematic diagram of the deflection slot structure in Embodiment 1; Figure 4 The diagram shown is a schematic of the cylinder installation structure in Embodiment 1; Figure 5 The diagram shown is a schematic diagram of the installation structure of the fixing pin in Embodiment 1; Figure 6 The diagram shown is a schematic of the installation structure of the extrusion plate in Embodiment 1; Figure 7 The diagram shown is a schematic of the installation structure of the insertion rod in Embodiment 1; Figure 8 The diagram shown is a schematic of the installation structure of the vertical limiting plate in Embodiment 1; Figure 9 The diagram shown is a schematic diagram of the opening structure of the placement slot in Embodiment 1; Figure 10 The diagram shown is a cross-sectional view of the fixing sleeve in Embodiment 1.

[0016] In the diagram: 1. Pile body; 2. Crown beam; 3. Sleeve; 4. Anchor body; 5. Tie rod; 6. Support; 7. Platform; 8. Anchor; 9. Crossbeam; 10. Lining; 11. Sheath; 12. Deflection groove; 14. Lateral limiting plate; 15. Vertical limiting plate; 16. Deflection rod; 17. Insert rod; 18. Slider; 19. Magnet; 20. Positioning post; 21. Drainage groove; 22. Fixing pipe; 23. Extrusion plate; 24. Cylinder; 25. Placement groove; 26. Spring; 27. Fixing pin; 28. Fixing sleeve; 29. ​​First magnetic ring; 30. Second magnetic ring. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0018] Example 1: This invention provides a double-row composite pile anchor support structure for buildings, such as... Figures 1 to 10 As shown, it includes: two rows of piles 1, used to be inserted below the ground to provide foundation support; Sleeve 3, connected to pile 1, is used to protect and position tie rod 5; Anchor 4 is installed at one end of the tie rod 5 to fix the tie rod 5 to the ground. Tie rod 5 passes through sleeve 3 and is connected to anchor body 4 to provide tension to stabilize pile 1; Anchor 8 is provided at the other end of the tie rod 5 and is used to fix the tie rod 5. The fixed structure includes a horizontal limiting plate 14, a vertical limiting plate 15, a deflection rod 16, an insertion rod 17, and an inner liner 10. The deflection rod 16 is movably connected to the inside of the sleeve 3 and its bottom end face is in contact with one end face of the pile body 1 away from the anchor 8. The horizontal limiting plate 14 and the vertical limiting plate 15 are both vertically movably connected to the inside of the sleeve 3. The insertion rod 17 is obliquely movably connected to the inside of the horizontal limiting plate 14. The inner liner 10 is used to drive the horizontal limiting plate 14 and the vertical limiting plate 15 to perform vertical displacement. In use, the operator pushes the inner liner 10, which engages with the inclined groove of the slider 18 via the inclined surface of the stepped placement groove 25. This engagement causes the slider 18 to move. As the slider 18 moves, it drives the horizontal limiting plate 14 and the vertical limiting plate 15 to move outside the positioning column 20. At this time, the horizontal limiting plate 14 and the vertical limiting plate 15 are inserted into the ground along the sleeve 3. The width of the horizontal limiting plate 14 and the vertical limiting plate 15 increases the resistance between the inner liner 10 and the ground, thereby preventing the inner liner 10 from rotating inside the ground. At the same time, the obliquely moving insertion rod 17 increases the contact range between the horizontal limiting plate 14 and the soil inside the ground, thereby further increasing the stability of the inner liner 10 and the sleeve 3. Under the action of the deflection rod 16, it is used to squeeze the second row of piles 1, increasing the support points of the sleeve 3.

[0019] like Figure 1 and Figure 2 As shown, a crown beam 2 is sleeved between the top ends of the two rows of piles 1. The crown beam 2 is used to connect the two rows of piles 1 into a whole. A bracket 6 is fixedly installed on one end face of the pile 1 near the anchor 8 and located outside the tie rod 5. A platform 7 is movably connected to the top of the bracket 6 and outside the tie rod 5. The anchor 8 is located at the end of the tie rod 5 and fits against one end of the platform 7 to fix the tie rod 5. Two sets of crossbeams 9 are provided between the platform 7 and the opposite face of the first row of piles 1. The crossbeams 9 are used to enhance the connection and stability between the platform 7 and the pile 1. In use, the personnel place the two sets of crossbeams 9 on the opposite side of the first column of piles 1 and the platform 7. Then, the platform 7 and the tie rod 5 are fixed together by the anchor 8. At the same time, the bracket 6 is used to support the anchor 8, which increases the supporting force of the anchor 8.

[0020] like Figures 3 to 5 As shown, a sheath 11 is welded to one end face of the inner liner 10, and one end face of the sheath 11 is in contact with one end face of the base 7. A deflection groove 12 is provided at the bottom of the outer surface of the sleeve 3. The deflection rod 16 is movably connected to the inside of the inner liner 10 and is movably located inside the deflection groove 12. A fixing pin 27 is connected through the inside of the deflection rod 16 and the fixing pin 27 is fixedly installed inside the inner liner 10. An inclined angle is provided on one end face of the deflection rod 16 near the fixing pin 27. During the process of anchoring the platform 7, the anchor 8 will drive the platform 7 to fit against the sheath 11, thereby pushing the platform 7 to move. As the platform 7 moves, it will drive the sheath 11 to move together. The movement of the sheath 11 will then drive the inner lining 10 to move. When the inner lining 10 moves, it will drive the deflection rod 16 into the deflection groove 12. Under the action of gravity, the deflection rod 16 will deflect around the outside of the fixing pin 27. After deflection, the deflection rod 16 continues to move and fits against one end face of the second row of piles 1. In this way, the deflection rod 16 squeezes the second row of piles 1, thereby increasing the support force of the sleeve 3 and further stabilizing the entire support structure.

[0021] like Figures 3 to 8 As shown, sliders 18 are welded to the bottom ends of both the horizontal limiting plate 14 and the vertical limiting plate 15. Both the horizontal limiting plate 14 and the vertical limiting plate 15 are movably connected inside the sleeve 3. A magnet 19 is connected through the inside of the slider 18. The magnet 19 is attracted to the outside of the liner 10. A positioning post 20 is connected through the inside of the perpendicular end faces of the horizontal limiting plate 14 and the vertical limiting plate 15. The positioning post 20 is welded inside the sleeve 3. A placement groove 25 is opened on the outer surface of the liner 10 at the position corresponding to the bottom end of the slider 18. The cross-section of the placement groove 25 is stepped. The end face of the placement groove 25 near the anchor 8 is set as an inclined surface. The slider 18 is T-shaped. An inclined groove is opened on one end face of the slider 18. The inclined groove of the slider 18 and the inclined surface of the placement groove 25 fit together. When the inner liner 10 moves, it engages with the inclined groove of the slider 18 through the inclined surface of the stepped placement groove 25. This engagement causes the slider 18 to move. As the slider 18 moves, it drives the horizontal limiting plate 14 and the vertical limiting plate 15 to move outside the positioning post 20. At this time, the horizontal limiting plate 14 and the vertical limiting plate 15 are inserted into the ground along the sleeve 3. Throughout the process, the magnet 19 keeps the slider 18 in contact with the inner liner 10, ensuring the stable movement of the slider 18 and the accurate insertion of the limiting plates.

[0022] like Figures 3 to 8 As shown, a drainage groove 21 is provided inside the transverse limiting plate 14 at the position corresponding to the outer side of the insertion rod 17. A horizontally placed fixed tube 22 is provided on one end face of the transverse limiting plate 14 at one end of the drainage groove 21. An extrusion plate 23 is movably connected inside the fixed tube 22. A sealing ring is provided in the middle of the contact area between the outer surface of the extrusion plate 23 and the insertion rod 17 and the fixed tube 22 and the transverse limiting plate 14, respectively. Lubricating oil is provided between the opposite surfaces of the insertion rod 17 and the extrusion plate 23. A cylinder 24 is symmetrically embedded and installed on the outer side of the liner 10 at the position inside the placement groove 25. The outer diameter of the cylinder 24 is smaller than the inner diameter of the fixed tube 22. A spring 26 is welded between one end face of the liner 10 and the inner wall of the sleeve 3. When the slider 18 moves to the horizontal area of ​​the placement groove 25, the inner liner 10 continues to move, causing the slider 18 to be unable to move up or down. At this time, the cylinder 24 on the inner liner 10 is in contact with the extrusion plate 23. As the inner liner 10 continues to move, the extrusion plate 23 moves inside the fixed tube 22, pushing the lubricating oil to flow. The flow of lubricating oil pushes the insertion rod 17 to be inserted obliquely into the ground along the drainage groove 21, thereby increasing the contact range between the transverse limiting plate 14 and the soil inside the ground, further enhancing the stability of the inner liner 10, and thus improving the stability of the sleeve 3.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 10 As shown, a fixing sleeve 28 is snapped onto the inner side of the liner 10. A first magnet 29 is installed equidistantly inside the fixing sleeve 28. A second magnet 30 is fixedly installed on the outer side of the liner 10. The magnetic poles of the opposite faces of the second magnet 30 and the first magnet 29 are the same. Due to the difference in magnetic poles, the second magnet 30 and the first magnet 29 interact with each other, thereby driving the object to move. A protrusion is welded to the edge of one end face of the fixing sleeve 28. A guide groove is opened inside the sleeve 3 at the position corresponding to the protrusion. A gap is provided between the protrusion and the guide groove, and the width of the gap is 1-5 mm. This facilitates the smooth movement of the inner liner 10 within the sleeve 3, while ensuring its stability. The gap between the protrusion and the guide groove reduces friction and prevents the inner liner 10 from moving difficult or stuck due to an excessively small gap. A gap width range of 1-5 mm ensures the smooth movement of the inner liner 10 while avoiding shaking or displacement of the inner liner 10 due to an excessively large gap, thereby ensuring the precise installation and stable operation of the entire support structure.

[0024] Working principle: Two rows of piles 1 are vertically inserted below the ground to ensure their stability and provide foundation support. A capping beam 2 is fitted onto the top of the two rows of piles 1, tightly connecting the two rows of piles 1 into a whole. This structural design can effectively enhance the overall stability and bearing capacity of the support system, so that the two rows of piles 1 form a solid whole under the connection of the capping beam 2, jointly resisting external lateral pressure and load, and providing a reliable support foundation for subsequent construction and building. At the same time, the vertical insertion of the piles 1 also ensures their stability in the foundation, effectively transferring the weight of the superstructure to the deep foundation, avoiding the problem of pile tilting or sinking due to unstable foundation, thereby improving the safety and reliability of the entire support structure and ensuring the smooth progress of the project. Next, the inner liner 10 is pushed, causing it to move radially. At this point, the opposing magnetic poles of the second magnet 30 of the inner liner 10 and the first magnet 29 of the fixing sleeve 28 are the same, making it difficult for the inner liner 10 to move. The inner liner 10 is then pushed further, causing the first magnet 29 of the inner liner 10 to enter the interior of the second magnet 30 of the fixing sleeve 28. Continuing to push, the first magnet 29 of the inner liner 10 and the second magnet 30 of the fixing sleeve 28 are crossed again. During this crossing process, the inner liner 10 is pushed radially by the magnetic force generated by the identical opposing magnetic poles. As the inner liner 10 moves, the inclined surface of the stepped placement groove 25 engages with the inclined groove of the slider 18. This engagement causes the slider 18 to begin moving. As the slider 18 moves, it drives the horizontal limiting plate 14 and the vertical limiting plate 15 to move outside the positioning post 20. At this time, the horizontal limiting plate 14... The vertical limiting plate 15 is inserted into the ground along the sleeve 3. Throughout the process, the magnet 19 keeps the slider 18 in contact with the inner liner 10, ensuring the stable movement of the slider 18 and the accurate insertion of the limiting plate. This design cleverly utilizes magnetic force and the geometry of the structure to achieve automatic insertion and stable fixation of the limiting plate, enhancing the stability of the sleeve 3 in the foundation. At the same time, the insertion of the horizontal limiting plate 14 and the vertical limiting plate 15 not only increases the friction between the sleeve 3 and the foundation soil, but also effectively limits the horizontal and vertical displacement of the sleeve 3, improving the deformation resistance of the entire support structure. In addition, the use of the magnet 19 ensures a tight fit between the slider 18 and the inner liner 10, allowing the limiting plate to be accurately inserted into the predetermined position, ensuring the installation accuracy and reliability of the support structure, and further improving the stability and safety of the entire support system. At one end of the pile 1 near the anchor 8, a bracket 6 is fixedly installed at the bottom of the tie rod 5, providing a foundation for the subsequent installation of the pedestal 7 and support of the anchor 8. The tie rod 5 is passed through the sleeve 3, and the fixing sleeve 29 is installed thereon. Then, one end of the tie rod 5 is connected to the anchor body 4. The anchor body 4 is inserted below the ground to fix the tie rod 5, providing a firm anchor point for the tie rod 5, ensuring that the tie rod 5 can withstand the tension and stabilize the pile 1. Through this design, the combination of the tie rod 5 and the anchor body 4 forms an effective tie system, which can transfer the lateral pressure on the pile 1 to the anchor body 4 through the tie rod 5, and then disperse it into the surrounding foundation soil, thereby enhancing the pile 1's resistance to lateral displacement and improving the overall stability of the support structure. At the same time, the installation of the bracket 6 provides a stable support foundation for the subsequent pedestal 7 and anchor 8, ensuring the tight connection and coordinated work between the components, ensuring the reliability and safety of the entire support system, and preventing support failure caused by loosening or falling off of components.

[0025] The other end of the tie rod 5 passes through the pile body 1 and is movably connected to the platform 7 at the outer position of the tie rod 5, providing a support point for the subsequent installation and fixing of the anchor 8. The anchor 8 is installed at the end of the tie rod 5 and fits against one end of the platform 7 to fix the tie rod 5. In this process, the installation of the anchor 8 not only completes the fixing of the tie rod 5, but also transmits the tension to the platform 7 through the tight fit with the platform 7, and then distributes it to the surrounding foundation soil through the platform 7, effectively enhancing the anchoring effect of the tie rod 5 and improving the tensile performance of the support structure. At the same time, the movable connection method of the platform 7 allows the position and angle to be adjusted according to actual needs during the installation process, ensuring the tight fit between the anchor 8 and the platform 7, improving the installation accuracy and reliability, further ensuring the stability and safety of the entire support system, and preventing support failure caused by the loosening or falling off of the tie rod 5. Simultaneously, when the inner liner 10 moves, it drives the deflection rod 16 into the deflection groove 12. Under the action of gravity, the deflection rod 16 deflects around the outside of the fixing pin 27. After deflection, the deflection rod 16 continues to move and comes into contact with the end face of the pile 1 away from the anchor 8. In this way, the deflection rod 16 exerts pressure on the pile 1 away from the anchor 8, thereby increasing the support force of the sleeve 3 and further stabilizing the entire support structure. This series of actions forms an automated mechanical transmission and reinforcement mechanism, requiring no additional manual intervention. It can automatically adjust and enhance the support force according to the actual stress condition of the support structure, improving... The support system has adaptive capability and stability. At the same time, this design makes full use of gravity and the mechanical properties of the structure itself, so that the components cooperate with each other to form a support system that works in concert. This greatly enhances the stability and reliability of the entire support structure and effectively prevents the support structure from deforming or being damaged due to changes in external loads. In the process of fixing the platform 7 with the anchor 8, the anchor 8 will drive the platform 7 to fit against the sheath 11, thereby pushing the platform 7 to move. As the platform 7 moves, it will fit against one end of the sheath 11, thereby fixing the sheath 11 and thus achieving the purpose of fixing the inner liner 10. When the slider 18 moves, both the transverse limiting plate 14 and the vertical limiting plate 15 are vertically connected to the inside of the sleeve 3. When the slider 18 moves to the horizontal area of ​​the placement groove 25, the inner liner 10 continues to move, causing the slider 18 to be unable to move up or down. At this time, the cylinder 24 on the inner liner 10 is in contact with the extrusion plate 23. As the inner liner 10 continues to move, the extrusion plate 23 moves inside the fixed tube 22, pushing the lubricating oil to flow. The flow of lubricating oil pushes the insertion rod 17 to be inserted obliquely into the ground along the drainage groove 21, thereby increasing the contact range between the transverse limiting plate 14 and the soil inside the ground, further enhancing the stability of the inner liner 10, and thus improving the stability of the sleeve 3. This improves the pull-out resistance and overall stability of the sleeve 3. In addition, this automated adjustment mechanism does not require manual intervention and can be adjusted in real time according to the actual stress, improving the self-adaptability and reliability of the support structure.

[0026] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A building pile anchor support structure for double-row composite piles, characterized in that, include: Two rows of piles (1) are inserted below the ground to provide support; A sleeve (3) is connected to the pile body (1) for protecting and positioning the tie rod (5). An anchor (4) is provided at one end of the tie rod (5) to fix the tie rod (5) below the ground; A tie rod (5) passes through the sleeve (3) and is connected to the anchor body (4) to provide tension to stabilize the pile (1). An anchor (8) is provided at the other end of the tie rod (5) for fixing the tie rod (5); The fixed structure includes a horizontal limiting plate (14), a vertical limiting plate (15), a deflection rod (16), an insertion rod (17), an inner liner (10), a first magnetic ring (29), and a second magnetic ring (30). The deflection rod (16) is movably connected to the inside of the sleeve (3) and its bottom end face is in contact with one end face of the pile body (1) away from the anchor (8). The horizontal limiting plate (14) and the vertical limiting plate (15) are both vertically movably connected to the inside of the sleeve (3). The insertion rod (17) is obliquely movably connected to the inside of the horizontal limiting plate (14). The first magnetic ring (29) is installed inside the sleeve (3). The second magnetic ring (30) is connected to the outside of the inner liner (10). The second magnetic ring (30) and the first magnetic ring (29) drive the horizontal limiting plate (14) and the vertical limiting plate (15) to move vertically when their opposite magnetic poles are the same.

2. The building pile anchor support structure of double-row combined piles according to claim 1, characterized in that, A crown beam (2) is sleeved between the top ends of the two columns of piles (1). The crown beam (2) is used to connect the two columns of piles (1) into a whole. A bracket (6) is fixedly installed on one end face of the pile (1) near the anchor (8) and outside the tie rod (5). A platform (7) is movably connected to the top of the bracket (6) and outside the tie rod (5). The anchor (8) is located at the end of the tie rod (5) and fits against one end of the platform (7). Two sets of crossbeams (9) are provided between the platform (7) and the opposite face of the first column of piles (1).

3. The building pile anchor support structure of double-row combined piles according to claim 2, characterized in that, The inner lining (10) has a sheath (11) welded to one end face, and the sheath (11) is in close contact with the end face of the base (7). The bottom of the outer surface of the sleeve (3) is provided with a deflection groove (12). The deflection rod (16) is movably connected to the inside of the inner lining (10) and is movably located inside the deflection groove (12). A fixing pin (27) is connected through the inside of the deflection rod (16), and the fixing pin (27) is fixedly installed inside the inner lining (10). The end face of the deflection rod (16) near the fixing pin (27) is provided with an inclination angle.

4. The building pile anchor support structure of double-row combined piles according to claim 3, characterized in that, Both the horizontal limiting plate (14) and the vertical limiting plate (15) have sliders (18) welded to their bottom ends. A magnet (19) is connected through the slider (18), and the magnet (19) is attracted to the outside of the liner (10).

5. The building pile anchor support structure of double-row combined piles according to claim 4, characterized in that, The horizontal limiting plate (14) and the vertical limiting plate (15) are both connected to a positioning post (20) through one end face that is perpendicular to each other. The positioning post (20) is welded to the inside of the sleeve (3). The outer surface of the inner liner (10) is provided with a placement groove (25) at the bottom position of the slider (18). The cross-section of the placement groove (25) is stepped. The slider (18) is T-shaped. One end face of the slider (18) is provided with an inclined groove. The cross-section of the placement groove (25) is stepped. The end face of the placement groove (25) near the anchor (8) is set as an inclined surface. The inclined groove of the slider (18) and the inclined surface of the placement groove (25) fit together.

6. The building pile anchor support structure of double-row combined piles according to claim 5, characterized in that, A drainage groove (21) is provided inside the transverse limiting plate (14) at the position corresponding to the outer side of the insertion rod (17). A horizontally placed fixed tube (22) is provided on one end face of the transverse limiting plate (14) at one end of the drainage groove (21). An extrusion plate (23) is movably connected inside the fixed tube (22). Lubricating oil is provided between the opposite surfaces of the insertion rod (17) and the extrusion plate (23).

7. The building pile anchor support structure of double-row combined piles according to claim 5, characterized in that, A cylinder (24) is symmetrically embedded in the outer side of the liner (10) at the position inside the placement groove (25). The outer diameter of the cylinder (24) is smaller than the inner diameter of the fixed tube (22). A spring (26) is welded between one end face of the liner (10) and the inner wall of the sleeve (3).

8. The building pile anchor support structure of double-row combined piles according to claim 7, characterized in that, The inner lining (10) is fitted with a fixing sleeve (28), and a protrusion is welded to one end face of the fixing sleeve (28). A guide groove is provided inside the sleeve (3) at the position corresponding to one end of the protrusion.

9. The building pile anchor support structure of double-row combined piles according to claim 8, characterized in that, A gap is provided between the protrusion and the guide groove, and the width of the gap is 1-5 mm.

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