A basic pipe pile and fair-faced concrete prefabricated wall

Abstract

The present invention belongs to the technical field of steel pipe piles, and discloses a foundation pipe pile and a fair-faced concrete prefabricated enclosure wall. Among them, a foundation pipe pile includes a pile body. The top end of the pile body is fixedly sleeved with an anti-tilting seat. The anti-tilting seat has a horizontal support surface. A cover plate seat located above the anti-tilting seat is connected to the top of the pile body, and a supporting beam for supporting the enclosure wall base is fixedly connected to the top of the cover plate seat. The anti-tilting seat includes a plate part and a sleeve part. The sleeve part is fixedly connected to the plate part, and the plate part is sleeved on the outer side of the top end of the pile body through the sleeve. The sleeve part is provided with a plurality of triangular support force-increasing plates connected to the plate part along the circumferential direction. The bottom surface of the plate part is the support surface. The cover plate seat includes a bearing plate and a connecting pipe connected to the bottom of the bearing plate. The present invention has good anti-overturning ability, can effectively resist displacement, and the square steel pipe pile is sleeved and in inscribed fit with the connecting pipe of the cover plate seat, so as to facilitate the adjustment of the installation angle of the supporting beam.

Description

Technical Field

[0001] The present invention belongs to the technical field of steel pipe piles, and particularly relates to a basic pipe pile and a fair-faced concrete prefabricated wall. Background Art

[0002] In engineering construction, the state encourages policies of land conservation and environmental protection, resulting in the selection of the sites of many new construction projects in areas with poor geological conditions, often with high backfill and soft soil geology. The original wall foundation structure can no longer meet the new requirements.

[0003] The existing wall foundations mainly include two types: independent foundations and strip foundations. The independent foundations generally adopt rubble structures, and the strip foundations generally adopt brick structures. These two practices cannot meet the engineering requirements in soft soil areas or high backfill areas. In soft soil or high backfill areas, if the foundation treatment is improper, local collapse or uneven settlement will occur in the independent rubble foundation or strip brick foundation, affecting the overall safety and aesthetics of the wall. Although the site treatment in soft soil or high backfill areas can meet the requirements under ideal design conditions, it is very difficult to control the site treatment requirements during the actual construction process. Therefore, the existing wall foundation practices have potential safety hazards.

[0004] Therefore, in the prior art, steel pipe piles are used as wall foundations. However, due to the need for a relatively deep penetration depth in soft soil areas or high backfill areas, their lengths are relatively long, at least more than four or five meters, and some are even up to six or seven meters. The excessive length is not convenient for transportation and installation construction. Moreover, the friction between the steel pipe piles and the soil in the strata is small, and the anti-displacement ability is poor, resulting in poor support effects. At the same time, the top of the steel pipe pile is generally directly connected to the bearing beam through a simple connecting seat, without anti-overturning performance, poor stability, and not convenient for adjustment and installation. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a basic pipe pile and a fair-faced concrete prefabricated wall to solve the problems of poor anti-overturning performance and inconvenient installation and adjustment of the existing steel pipe piles.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions:

[0007] On the one hand, a basic pipe pile is provided, including a pile body. An anti-overturning seat is fixedly sleeved at the top of the pile body. The anti-overturning seat has a horizontal support surface. A cover plate seat is connected above the anti-overturning seat at the top of the pile body. A bearing beam for supporting the wall base is fixedly connected to the top of the cover plate seat.

[0008] The anti-tilt seat comprises a plate portion and a sleeve portion, the sleeve portion is fixedly connected to the plate portion and the plate portion is sleeved on the outer side of the top end of the pile body through the sleeve, and the sleeve portion is provided with a plurality of triangular support force-increasing plates connected to the plate portion along the circumferential direction; the bottom surface of the plate portion is the support surface;

[0009] The cover plate seat comprises a support plate and a connecting pipe connected to the bottom of the support plate. The connecting pipe is sleeved in the top of the pile body and forms an inscribed relationship with the inner wall of the pile body.

[0010] In a possible implementation, two elongated holes are respectively provided at both ends of the support plate, and the elongated holes are fixedly connected to the support beams through fasteners.

[0011] In a possible implementation, the pile body includes a plurality of hollow pile parts distributed along the pile axis and penetrating vertically, and adjacent pile parts are detachably connected by a pile connecting member, and the pile connecting member has a first channel connecting two adjacent pile parts;

[0012] At least one sliding sleeve is slidably matched with the inner side of the upper part of the pile part, and at least one group of accommodating structures is arranged inside the sliding sleeve along the length direction, and each group of accommodating structures is provided with at least one accommodating groove along the circumferential direction, and radially distributed blocking rods are arranged in the accommodating grooves, and a first spring is arranged between the end of the blocking rod and the inner bottom of the accommodating groove, and correspondingly, the pile part is provided with a through hole located in the moving direction of the blocking rod, so that the blocking rod can extend into the outside of the pile part through the through hole;

[0013] An annular limiting structure is provided on the inner wall of the pile portion above the sliding sleeve, and the annular limiting structure is connected to the sliding sleeve via a second spring;

[0014] A connecting plate is provided on the inner side of each of the sliding sleeves, a driving shaft is provided in the pile body, the driving shaft passes through the connecting plate of each sliding sleeve in sequence from top to bottom along the axis of the pile body and is detachably connected to the connecting plate, and a flange connection part for connecting a linear drive device is provided at the top end of the driving shaft;

[0015] The pile part at the bottom end of the pile body is connected with a pointed cone pile head.

[0016] In a possible implementation, one end of the locking rod facing away from the first spring is a hemispherical arc surface and is provided with a rolling contact piece.

[0017] In a possible implementation, the sleeve has a starting position and a working position in the pile portion. In the starting position, the accommodating groove of the sleeve is staggered with the corresponding through hole. In the working position, the sleeve is located at the top of the pile portion and the positioning rod passes through the through hole and extends into the formation.

[0018] In a possible implementation, a slide rail is provided on the inner wall of the pile portion, and the slide sleeve is provided with a slide groove that slidably cooperates with the slide rail.

[0019] In a possible implementation, the pile connection member includes an annular support platform. The top and bottom of the annular support platform respectively have an upper connection portion and a lower connection portion that extend along the axial direction of the pile and are both annular. External threads for threadedly connecting the corresponding side pile portions are respectively provided on the outer walls of the upper connection portion and the lower connection portion.

[0020] In a possible implementation, the pile body is a galvanized square pipe pile.

[0021] On the other hand, a fair-faced concrete prefabricated wall is also provided, including the foundation pipe pile of any of the above technical solutions and a fair-faced concrete prefabricated wall body arranged thereon.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] For the foundation pipe pile of the present invention, through the anti-tilting seat, the steel pipe pile can have good anti-overturning ability, can effectively resist displacement, and the square steel pipe pile is sleeved with the connecting pipe of the cover plate seat and is in an inscribed fit, so that the cover plate seat can rotate at an angle in the axial direction, thereby facilitating the adjustment of the installation angle, which is convenient to adjust. At the same time, by arranging elongated holes in its bearing, it is convenient to adjust the position in the transverse direction to solve the problem of existing errors, which is more convenient and practical.

[0024] Moreover, by dividing the pile body into multiple pile portions and connecting them through pile connection members, the longer pile body can be transported in segments and assembled through pile connection members during on-site construction, which greatly facilitates transportation and reduces transportation costs. And by arranging slidable sliding sleeves in each pile portion, when the pile body is driven into the designed depth, each sliding sleeve can be driven by the driving shaft under the drive of the linear driving device to move upward, and then the sliding sleeve can move from the starting position to the working position, that is, the top of the pile portion, and its positioning rod can be inserted into the through hole and extend into the soil layer. In this way, the positioning rods of each pile portion will be inserted into the soil layer during driving, greatly increasing the side friction resistance and bearing capacity of the steel pipe pile, improving the anti-displacement ability, and meeting the requirements for building foundation reinforcement.

[0025] At the same time, the end of the positioning rod is a hemispherical arc surface and is provided with rolling steel balls, so that the friction between the positioning rod and the inner wall of the pile portion is smaller, which is more convenient for the movement and extension of the positioning rod and reduces the driving difficulty.

[0026] In addition, the pile connection member and the pile portion are connected by a threaded structure. The threaded structure has good sealing performance, can improve the connection stability between the piles, and its upper connection portion and lower connection portion have a long axial length, which can improve the coaxiality of the two pile portions during assembly.

[0027] For the fair-faced concrete prefabricated wall of the present invention, the installation of the bearing beam is ten centimeters higher than the ground, which can reduce the height of the wall by ten centimeters, lower the material cost of the wall, and through the support structure of the steel pipe piles of this wall, the wall does not need to have a column structure, and a fair-faced concrete prefabricated wall is adopted. This wall can improve the construction speed and has good aesthetics. Description of the Drawings

[0028] Figure 1 It is a schematic structural diagram of an embodiment of the present application;

[0029] Figure 2 It is a connection sectional view of the pile connection connector and two adjacent pile parts of an embodiment of the present application;

[0030] Figure 3 It is a front view of the pile connection connector of an embodiment of the present application;

[0031] Figure 4 It is a schematic structural diagram of the connection between the sliding sleeve and the pile part where it is located in an embodiment of the present application, and this schematic diagram also shows the state where the slideway has not moved in place;

[0032] Figure 5 It is Figure 4 a partial enlarged schematic diagram;

[0033] Figure 6 It is Figure 5 a schematic diagram of the state after the slideway has moved in place;

[0034] Figure 7 It is a schematic structural diagram of the top end of the pile body in an embodiment of the present application;

[0035] Figure 8 It is a schematic structural diagram of the connection between the drive shaft and the linear drive device in an embodiment of the present application.

[0036] In the figure: 1 - pile body; 11 - pile part; 12 - pile connection connector; 121 - first channel; 122 - annular support platform; 123 - upper connection part; 124 - lower connection part; 125 - external thread; 126 - annular limit structure; 127 - second spring; 13 - sliding sleeve; 131 - connecting plate; 133 - receiving groove; 134 - first spring; 135 - clamping rod; 136 - through hole; 137 - ball; 14 - drive shaft; 15 - flange connection part; 2 - anti-tilting seat; 21 - plate part; 22 - sleeve part; 23 - triangular support and force-increasing plate; 3 - cover plate seat; 4 - bearing beam; 5 - hydraulic cylinder. Detailed Description of the Invention

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Generally, the components of the embodiments of the present invention described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0038] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0039] Please refer to Figure 1-8 As shown, an embodiment of the present application provides a basic pipe pile, including a pile body 1. The top end of the pile body 1 is fixedly sleeved with an anti-tilting seat 2. The anti-tilting seat 2 has a horizontal support surface. A cover plate seat 3 is connected above the anti-tilting seat 2 at the top of the pile body 1. A supporting beam 4 for supporting the wall base is fixedly connected to the top of the cover plate seat 3.

[0040] The anti-tilting seat 2 can achieve the function of anti-tilting through its support surface. It can be installed after the pile body 1 is driven in. The cover plate seat 3 can be used to install the supporting beam 4, and the supporting beam 4 is used to bear the wall base.

[0041] The anti-tilting seat 2 includes a plate part 21 and a sleeve part 22. The sleeve part 22 is fixedly connected to the plate part 21, and the plate part 21 is sleeved outside the top end of the pile body 1 through the sleeve. The sleeve part 22 is provided with a plurality of triangular support force-increasing plates 23 connected to the plate part 21 along the circumferential direction; the bottom surface of the plate part 21 is the support surface.

[0042] The anti-tilting seat 2 can be sleeved and installed at the top end of the pile body 1 through the sleeve part 22, and can be fixedly connected to the corresponding pile part 11 of the pile body 1 through bolts. The provided triangular support force-increasing plates 23 can effectively resist external forces in the horizontal direction, so that the pile body 1 can remain vertical.

[0043] The cover plate seat 3 includes a bearing plate and a connecting pipe connected to the bottom of the bearing plate. The connecting pipe is sleeved inside the top end of the pile body 1 and is in an inscribed relationship with the inner wall of the pile body.

[0044] In this way, it is more convenient to install the supporting beam 4 and its mating connection with the pile body 1, and it is also convenient to adjust the installation angle of the supporting beam, which is more convenient.

[0045] Through the above technical solution, the steel pipe pile can have good anti-tilting ability through the anti-tilting seat 2, can effectively resist displacement, and the square steel pipe pile is sleeved and in an inscribed fit with the connecting pipe of the cover plate seat, so that the cover plate seat can rotate at an angle in the axial direction, thereby facilitating the adjustment of the installation angle, which is convenient, more convenient and practical.

[0046] In one embodiment, two elongated holes are respectively provided at both ends of the bearing plate, and the elongated holes are fixedly connected to the supporting beam 4 through fasteners.

[0047] In this way, it is convenient to adjust the installation position of the supporting beam along the extending direction of the elongated hole through the elongated hole, thereby solving the problem that installation cannot be carried out due to installation errors.

[0048] In the embodiment of the present application, it includes a pile body 1 connected with a tapered pile head. The pile body 1 includes a plurality of hollow and vertically penetrating pile parts 11 distributed along the pile axis. Adjacent pile parts 11 are detachably connected through a pile joint connector 12, and the pile joint connector has a first channel 121 communicating with adjacent two pile parts 11.

[0049] The pile body 1 is a steel pipe pile structure, specifically a galvanized steel pipe pile, which is formed by connecting a plurality of pile parts 11 through a pile joint connector 12. The first channel 121 of the pile joint connector 12 can communicate with each pile part 11, thereby facilitating the installation of the drive shaft 14.

[0050] At least one sliding sleeve 13 is slidably fitted inside the upper part of the pile part 11. At least one set of accommodating structures is provided along the length direction inside the sliding sleeve 13. At least one accommodating groove 133 is provided along the circumferential direction of each set of accommodating structures. A clamping rod 135 is distributed along the radial direction inside the accommodating groove 133. A first spring 134 is provided between the end of the clamping rod 135 and the inner bottom of the accommodating groove 133. Correspondingly, the pile part 11 is provided with a through hole 136 in the moving direction of the clamping rod 135, so that the clamping rod 135 can extend outside the pile part 11 through the through hole 136.

[0051] A sliding sleeve 13 is arranged inside each pile part 11. The sliding sleeve 13 can move axially. Driven by the drive shaft 14, the sliding sleeve 13 can move upward a certain distance, so that the sliding sleeve 13 can move to the position where the through hole 136 is provided and is limited by the annular limiting structure. At this time, the second spring is compressed. Before reaching this position, the clamping rod 135 is in a state of storing energy. When reaching the position of the through hole 136, the clamping rod 135 can be inserted into the surrounding soil under the driving of the elastic force. The inserted part into the soil has a certain basic length, thereby improving the side friction resistance and bearing capacity of the steel pipe pile, improving the anti-displacement ability, and meeting the requirements of building foundation reinforcement. Multiple sets of accommodating structures can be provided, and multiple accommodating grooves 133 can be provided in each set to obtain greater side friction resistance and bearing capacity.

[0052] An annular limiting structure 126 is provided on the inner wall of the pile part 11 above the sliding sleeve 13. The annular limiting structure 126 is connected to the sliding sleeve 13 through a second spring 127.

[0053] In this way, the sliding sleeve 13 can be restricted to move within a certain range of the upper section of the pile portion 11, and there is an upper limit and a lower limit, the upper limit is the position of the annular limiting structure 126, and the lower limit is the position where the second spring 127 can extend under the gravity of the sliding sleeve 13. The second spring can be arranged to keep a relatively fixed distance between the sliding sleeve 13 and the annular limiting structure, so that the driving distance of the driving shaft 14 can be reduced, which is more convenient.

[0054] A connecting plate 131 is provided on the inner side of each sleeve 13, and a driving shaft 14 is provided in the pile body 1. The driving shaft 14 passes through the connecting plate 131 of each sleeve 13 from top to bottom along the axis of the pile body 1 and is detachably connected to the connecting plate 131. A flange connecting portion 15 for connecting a linear drive device is provided at the top end of the driving shaft 14.

[0055] The connecting plate 131 is fixedly connected to the inner side of the sliding sleeve 13, and the connecting part is provided with a through hole 136, which can be directly connected to the drive shaft 14 by threading, or it can be connected to the drive shaft 14 by a threaded sleeve installed in the through hole 136. Due to its long length, the drive shaft 14 can be connected in multiple sections by threaded sleeves, and of course, a single drive shaft 14 is also possible. The flange connection part 15 at the top of the drive shaft 14 can be connected to a linear drive device such as a hydraulic cylinder 5, so that the drive shaft 14 can be driven by the linear drive device to rise as a whole, and drive the prefabricated connected sliding sleeve 13 to move upward, and then the sliding sleeve 13 can be moved to the working position, so that the positioning rod 135 can be inserted into the outer coating.

[0056] The pile part 11 at the bottom of the pile body 1 is connected with a pointed cone pile head, which is convenient for pile driving and can also prevent soil from entering the pile.

[0057] Through the above technical scheme, the pile body 1 is divided into a plurality of pile parts 11 and connected by the pile connecting member 12, so that the longer pile body 1 can be transported in sections, and can be assembled through the pile connecting member 12 during on-site construction, which greatly facilitates transportation and reduces transportation costs. In addition, by arranging a slidable sleeve 13 in each pile part 11, when the pile body 1 is driven to a designed depth, each sleeve 13 can be moved upward by the driving shaft 14 under the drive of a linear driving device, and then the sleeve 13 can be moved from a starting position to a working position, i.e., the top of the pile part 11, and the positioning rod 135 thereof can be inserted into the through hole 136 and extended into the soil layer, so that the positioning rod 135 of each pile part 11 can be inserted into the soil layer during the driving process, which greatly increases the lateral friction resistance and bearing capacity of the steel pipe pile, improves the anti-displacement capacity, and meets the requirements for strengthening the building foundation.

[0058] In one embodiment, one end of the locking rod 135 away from the first spring 134 is a hemispherical arc surface and is provided with a rolling contact piece.

[0059] The hemispherical arc surface is provided with rolling contact members, which can effectively reduce the friction between the positioning rod 135 and the inner wall of the pile part 11, making it more convenient for the sliding sleeve 13 to move within the pile part 11. In a specific implementation process, the rolling contact members can be balls 137, which are installed at the end of the positioning rod 135 through the receiving groove 133.

[0060] Furthermore, for a better description of the sliding sleeve 13, during the use of the sliding sleeve 13, the sliding sleeve 13 has a starting position and a working position within the pile part 11. At the starting position, the receiving groove 133 of the sliding sleeve 13 is staggered from the corresponding through hole 136. At the working position, the sliding sleeve 13 is located at the top of the pile part 11 and the positioning rod 135 passes through the through hole 136 and extends into the formation. By being staggered at the starting position, the outside soil can be prevented from entering the pile part 11 through the through hole 136.

[0061] Specifically, the inner wall of the pile part 11 is provided with a slide rail, and the sliding sleeve 13 is provided with a chute that slidably cooperates with the slide rail. In this way, the sliding sleeve 13 can move better along the axial direction through the cooperation of the slide rail and the chute.

[0062] In a preferred embodiment of the pile connection member 12, the pile connection member 12 includes an annular support platform 122. The top and bottom of the annular support platform 122 respectively have an upper connection part 123 and a lower connection part 124 that extend along the axial direction of the pile and are both annular. External threads 125 for threaded connection with the corresponding pile part 11 are respectively provided on the outer walls of the upper connection part 123 and the lower connection part 124.

[0063] The outer diameter of the annular support platform 122 is adapted to the outer diameter of the pile part 11, and the outer diameter of the upper connection part 123 is less than or slightly less than the inner diameters of the two connection parts. This can enable the upper and lower pile parts 11 to be more adaptively threadedly connected to the upper connection part 123 and the lower connection part 124. Moreover, through the threaded connection structure, it can make the connection between the pile part 11 and the pile connection member 12 have better sealing performance, improve the connection stability between the piles, and the upper connection part 123 and the lower connection part 124 have a longer axial length, which can improve the coaxiality of the two pile parts 11 during assembly.

[0064] In addition, a triangular force-increasing bearing plate that can be tilted is hinged to the pile part 11 in the middle section of the pile body 1. During the downward installation of the galvanized steel pipe pile, the triangular force-increasing bearing plate (not shown in the figure) will expand at a large angle under force, enhancing the friction and end bearing force between the pile body 1 and the soil, making the galvanized steel pipe pile more stably fixed in the soil.

[0065] Regarding the construction method of the foundation pipe pile:

[0066] 1. Connect a pile section 11 to the pointed conical pile head and install the corresponding drive shaft 14, then drive it in by the driving method. After the first pile section 11 is driven into the soil layer, connect the next pile section 11 through the pile connection connector 12, and at the same time connect the corresponding drive shaft 14 through the threaded coupling sleeve. In this way, the entire galvanized steel pipe pile is driven into the soil to the designed depth, ensuring it is perpendicular to the ground.

[0067] 2. Control the top of the pile body 1 to be 100 mm above the ground, and cut off the excess part with a cutting machine.

[0068] 3. Install the hydraulic equipment so that the connecting end of the hydraulic cylinder 5 of the hydraulic equipment is fixedly connected to the flange at the top of the drive shaft 14. Then control the hydraulic cylinder 5 to drive the drive shaft 14 to move upward by a certain distance, so that the sliding sleeve 13 moves to the working position. After completion, remove the hydraulic equipment.

[0069] 4. Install the anti-tilting seat 2 on the outside of the topmost pile section 11, press it to a height slightly below the ground, and fix it to the pile section 11 with bolts from the side.

[0070] 5. Insert the cover plate seat 3 into the top of the pile section 11. The lower end of the cover plate seat 3 is a round pipe, and the installation angle can be flexibly adjusted according to the site requirements.

[0071] 6. Fix the supporting beam 4 with bolts from the lower side of the long strip hole of the cover plate seat 3, and the fixing position can be flexibly adjusted within the range of the long strip hole according to the needs.

[0072] 7. Install the prefabricated fence base on the supporting beam 4.

[0073] The embodiment of the present application also provides a fair-faced concrete prefabricated fence (not shown in the figure), including the foundation pipe pile of any of the above technical solutions and the fair-faced concrete prefabricated fence body arranged thereon.

[0074] The installation of the supporting beam will be 10 cm higher than the ground, which can reduce the height of the fence by 10 cm, reducing the material cost of the fence. And through the support structure of the steel pipe pile of this fence, the fence does not need to have a column structure, but uses this fair-faced concrete prefabricated fence, which can improve the construction speed and has good aesthetics. It should be noted that the fair-faced concrete prefabricated fence body belongs to the existing fence structure form, which is installed faster and more conveniently, and can also be easily made into the structure form of an openwork fence, making it have a certain artistic beauty.

[0075] The embodiment of the present application has the following beneficial effects:

[0076] By dividing the pile body 1 into multiple pile parts 11 and connecting them through the pile joint connector 12, the longer pile body 1 can be transported in sections and assembled through the pile joint connector 12 during on-site construction, which greatly facilitates transportation, reduces transportation costs. And by arranging a slidable sliding sleeve 13 in each pile part 11, when the pile body 1 is driven to the design depth, each sliding sleeve 13 can be driven by the driving shaft 14 under the drive of the linear driving device to move upward, so that the sliding sleeve 13 can move from the starting position to the working position, that is, the top of the pile part 11, and its positioning rod 135 can be inserted into the through hole 136 and extend into the soil layer. In this way, the positioning rod 135 of each pile part 11 will be inserted into the soil layer during driving, greatly increasing the side friction resistance and bearing capacity of the steel pipe pile, improving the anti-displacement ability, and meeting the requirements for building foundation reinforcement.

[0077] Moreover, the end of the positioning rod 135 is a hemispherical arc surface and is provided with rolling steel balls, which can make the friction between the positioning rod 135 and the inner wall of the pile part 11 smaller, more convenient for the movement and extension of the positioning rod 135, and reduce the piling difficulty.

[0078] At the same time, the pile joint connector 12 and the pile part 11 are connected by a threaded structure. The threaded structure has good sealing performance, can improve the connection stability between pile joints, and its upper connecting part 123 and lower connecting part 124 have a longer axial length, which can improve the coaxiality of the two pile parts 11 during assembly.

[0079] In addition, through the anti-tilting seat 2, the anti-tilting ability can be improved from the top of the pile body 1, and the installation is also convenient. The cover plate seat 3 can facilitate the installation of the supporting beam 4 and realize the connection between the supporting beam 4 and the pile body 1.

[0080] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A basic pipe pile, comprising a pile body (1), characterized in that: The top of the pile body (1) is fixedly sleeved with an anti-tilt seat (2), the anti-tilt seat (2) having a transverse support surface, the top of the pile body (1) is connected to a cover plate seat (3) located above the anti-tilt seat (2), and the top of the cover plate seat (3) is fixedly connected to a supporting beam (4) for supporting the base of the enclosure wall; The anti-tilt seat (2) comprises a plate portion (21) and a sleeve portion (22), the sleeve portion (22) being fixedly connected to the plate portion (21) and the plate portion (21) being sleeved on the outer side of the top end of the pile body (1) through the sleeve, and the sleeve portion (22) being provided with a plurality of triangular support force-enhancing plates (23) connected to the plate portion (21) along the circumferential direction; the bottom surface of the plate portion (21) is the support surface; The cover plate seat (3) comprises a support plate and a connecting pipe connected to the bottom of the support plate, the connecting pipe being sleeved inside the top end of the pile body (1) and forming an inscribed relationship with the inner wall of the pile body; The pile body (1) comprises a plurality of hollow pile parts (11) distributed along the pile axis and penetrating vertically, wherein adjacent pile parts (11) are detachably connected via a pile connecting member (12), and the pile connecting member has a first channel (121) connecting two adjacent pile parts (11); At least one sliding sleeve (13) is slidably fitted on the inner side of the upper part of the pile part (11), at least one group of accommodating structures is provided inside the sliding sleeve (13) along the length direction, each group of accommodating structures is provided with at least one accommodating groove (133) along the circumferential direction, radially distributed locking rods (135) are provided in the accommodating groove (133), a first spring (134) is provided between the end of the locking rod (135) and the inner bottom of the accommodating groove (133), and correspondingly, the pile part (11) is provided with a through hole (136) located in the moving direction of the locking rod (135), so that the locking rod (135) can extend outside the pile part (11) through the through hole (136); An annular limiting structure (126) is provided on the inner wall of the pile portion (11) above the sliding sleeve (13), and the annular limiting structure and the sliding sleeve (13) are connected via a second spring (127); A connecting plate (131) is provided on the inner side of each sliding sleeve (13), a driving shaft (14) is provided in the pile body (1), the driving shaft (14) passes through the connecting plate (131) of each sliding sleeve (13) in sequence from top to bottom along the axis of the pile body (1) and is detachably connected to the connecting plate (131), and a flange connecting portion (15) for connecting a linear drive device is provided at the top end of the driving shaft (14); The pile part (11) at the bottom of the pile body (1) is connected to a pointed cone-shaped pile head.

2. The precast concrete pile according to claim 1, wherein: Two elongated holes are respectively provided at both ends of the support plate, and the elongated holes are fixedly connected to the support beam (4) via fasteners.

3. A basic pipe pile according to claim 1, characterized in that: One end of the locking rod (135) facing away from the first spring (134) is a hemispherical arc surface and is provided with a rolling contact piece.

4. A basic pipe pile according to claim 3, characterized in that: The sliding sleeve (13) has a starting position and a working position in the pile portion (11). In the starting position, the receiving groove (133) of the sliding sleeve (13) is staggered with the corresponding through hole (136). In the working position, the sliding sleeve (13) is located at the top of the pile portion (11) and the locking rod (135) passes through the through hole (136) and extends into the formation.

5. The basic pipe pile according to claim 4, characterized in that: The inner wall of the pile part (11) is provided with a slide rail, and the sliding sleeve (13) is provided with a chute that slidably cooperates with the slide rail.

6. The basic pipe pile according to claim 5, characterized in that: The pile connection member (12) includes an annular support platform (122). The top and bottom of the annular support platform (122) respectively have an upper connection part (123) and a lower connection part (124) that extend along the pile axis and are both annular. External threads (125) for threadedly connecting the corresponding side pile parts (11) are respectively provided on the outer walls of the upper connection part (123) and the lower connection part (124).

7. A basic pipe pile according to claim 1, characterized in that: The pile body is a galvanized square pipe pile.

8. A fair-faced concrete prefabricated wall, characterized in that: It includes the basic pipe pile according to any one of claims 1 - 7 and a fair-faced concrete prefabricated enclosure wall provided thereon.

Images