A modular civil engineering foundation pile structure

Abstract

This application relates to the field of civil engineering, and in particular to a modular composite civil engineering foundation pile structure, comprising foundation pile segments, connecting components, and adjusting support components. The foundation pile segments have flanged and grooved interfaces at both ends, enabling rapid connection via the connecting components. The adjusting support components include support rods and positioning bolts for adjusting the verticality and stability of the foundation pile. The outer wall of the foundation pile segment has reinforcing ribs and grooves, the internal cavity is filled with lightweight concrete, and the bottom is equipped with a conical pile tip. This application, through modular design, rapid assembly interfaces, and adjusting support components, solves the problems of low construction efficiency and poor adaptability of existing foundation piles, improving the strength, stability, and ease of construction of foundation piles, and providing an efficient and reliable solution for civil engineering under complex geological conditions.

Description

Technical Field

[0001] This utility model belongs to the field of civil engineering technology, specifically a modular civil engineering foundation pile structure. Background Technology

[0002] In the field of civil engineering, pile foundations are a crucial component of building foundations, and their design and construction techniques are constantly being improved to meet evolving engineering needs. A typical pile foundation structure includes the pile body, reinforcement mechanisms, and fixing devices. Some designs also incorporate mechanical transmission or maintenance systems to enhance stability and construction efficiency. For example, a civil engineering pile foundation structure with patent number CN118531776B utilizes a layered reinforcement mechanism internally, employing a transmission bevel gear to drive a reinforcement tube to extend outwards and insert into the sidewall of the pile hole for reinforcement. While this approach can enhance pile stability under specific geological conditions, it focuses on internal mechanical reinforcement of the pile body, lacks modular assembly design, makes rapid installation and disassembly difficult, and is highly dependent on construction equipment, thus limiting its adaptability.

[0003] Furthermore, the pile foundation fixing structure for civil engineering projects, patent number CN117966785B, achieves clamping and fixing through an outer ring with a U-shaped groove guide rail and a fixing plate, and combines this with an automatic water spraying curing system to improve post-construction curing efficiency. This design is innovative in integrating pile foundation fixing and curing; however, its monolithic structure lacks modularity, making it difficult to flexibly adjust dimensions and connection methods. Additionally, its verticality adjustment relies on the cooperation of a sliding cylinder and guide rail, resulting in limited precision and making it difficult to meet high-precision construction requirements.

[0004] Existing pile foundation structures still have limitations in terms of modularity, ease of construction, and adaptability to complex geological conditions, resulting in prominent problems such as low construction efficiency, high cost, and inconvenient transportation and assembly. Therefore, there is an urgent need to propose a modular composite pile foundation structure for civil engineering to achieve rapid assembly, flexible adjustment, and standardized construction, thereby improving construction efficiency and project quality. Utility Model Content

[0005] The purpose of this utility model is to provide a combined modular civil engineering foundation pile structure to solve the technical problems of existing foundation pile structures, such as low modularity, poor construction convenience, insufficient ability to adapt to complex geological conditions, and difficulty in achieving rapid assembly and flexible adjustment.

[0006] This utility model provides a modular composite civil engineering foundation pile structure, comprising: foundation pile segments, connecting components, and adjusting support components. The foundation pile segments are standardized modular units, each with a flange interface and a groove interface at both ends for quick connection between multiple foundation pile segments. The connecting components include locking rings and wedge-shaped blocks for fixing the flange interfaces and groove interfaces of adjacent foundation pile segments. The adjusting support components include retractable support rods and positioning bolts for adjusting the overall verticality and stability of the foundation piles.

[0007] Specifically, multiple sets of reinforcing ribs are evenly distributed axially on the outer wall of the foundation pile segment. Each set of reinforcing ribs is connected by a transverse connecting plate to form a grid-like reinforcement structure. The inner side of each reinforcing rib has a groove for installing the support rod in the adjusting support assembly. The support rod has a ball joint and a threaded end at both ends. The ball joint engages with the groove, and the threaded end connects to a positioning bolt, thereby enabling length adjustment and angle locking of the support rod.

[0008] Furthermore, an annular sealing groove is provided on the outer periphery of the flange interface, and a sealing ring is provided on the corresponding position on the inner wall of the groove interface. When two foundation pile segments are joined, the sealing ring is embedded in the annular sealing groove to form a sealed connection, preventing external mud or water from entering the pile body. The locking ring is a split structure, consisting of two semi-circular rings. Its inner wall is provided with a groove that matches the outer periphery of the flange interface, and its outer wall is provided with an operating handle for manually tightening the locking ring. The wedge-shaped locking block is set in the groove of the locking ring, with its inclined surface facing the outer periphery of the flange interface. The tightening action of the locking ring causes the wedge-shaped locking block to press against the flange interface, thereby achieving a firm fixation of the joint.

[0009] The adjustable support assembly also includes a guide sleeve, which is fixed to the outer wall of the foundation pile section and aligned with the sliding groove to guide the extension and retraction of the support rod. The inner wall of the guide sleeve has a limiting groove, and the outer wall of the support rod has a limiting protrusion that matches the limiting groove. The limiting protrusion slides along the limiting groove to ensure the support rod remains stable during extension and retraction. Furthermore, the threaded portion of the positioning bolt passes through the side wall of the guide sleeve and engages with the threaded end of the support rod. The support rod is locked by rotating the positioning bolt.

[0010] To enhance the adaptability of the foundation pile structure, a conical pile tip is provided at the bottom of the foundation pile segment. The outer surface of the conical pile tip is covered with a wear-resistant coating to reduce frictional resistance during the sinking process. A connector post is provided at the top of the conical pile tip, and the outer wall of the connector post is threaded to mate with a threaded hole at the bottom of the foundation pile segment. The connection between the conical pile tip and the foundation pile segment is achieved by rotating the conical pile tip. Simultaneously, a drainage hole is provided at the bottom of the conical pile tip to drain accumulated water from the pile hole during sinking, improving construction efficiency.

[0011] Furthermore, the foundation pile segment has an internal cavity filled with lightweight concrete to enhance the overall strength and compressive strength of the pile. An injection port is located at the top of the cavity, and a sealing cap is installed at the injection port to seal the cavity after construction. In addition, multiple hooks are provided on the inner wall of the cavity for suspending sensors or monitoring equipment, facilitating real-time monitoring of the pile's stress state and deformation.

[0012] When multiple foundation pile segments are joined via flange and groove interfaces, the flange interface of one foundation pile segment is first inserted into the groove interface of another foundation pile segment, allowing the sealing ring to embed into the annular sealing groove, forming a preliminary connection. Subsequently, a locking ring is placed around the outer circumference of the joint, and the locking ring is tightened using the operating handle, causing the wedge-shaped locking block to press against the flange interface, thus securing the joint. During this process, the groove of the locking ring fits tightly against the outer circumference of the flange interface, and the inclined surface of the wedge-shaped locking block applies radial pressure, ensuring the firmness and sealing of the joint.

[0013] The installation process for adjusting the support assembly is as follows: Insert the ball joint of the support rod into the groove and guide it using the guide sleeve, allowing the support rod to extend and retract along the groove. Once the length of the support rod is adjusted to the appropriate position, rotate the positioning bolt so that its threaded portion engages with the threaded end of the support rod, thereby locking the position of the support rod. By adjusting the length and angle of multiple support rods, the overall verticality and stability of the foundation pile can be adjusted.

[0014] This invention addresses the shortcomings of existing pile foundation structures in terms of modular design, ease of construction, and adaptability through the aforementioned technical solutions. Specifically, standardized foundation pile segments and quick-connect interfaces enable modular assembly of the pile foundation structure, significantly improving construction efficiency and reducing transportation and assembly costs. The grid-like reinforcement structure formed by reinforcing ribs and transverse connecting plates enhances the overall strength of the pile, while the cavity filled with lightweight concrete further improves the pile's compressive strength. The design of the adjustable support components allows the pile foundation to adapt to construction needs under different geological conditions, and the precise adjustment of the support rods ensures the verticality and stability of the pile.

[0015] Furthermore, the wear-resistant coating and drainage hole design of the tapered pile tip effectively reduce resistance during the sinking process, improving construction efficiency, while the hooks inside the cavity facilitate subsequent monitoring. The fit between the sealing ring and the annular sealing groove ensures the sealing of the joint, preventing external impurities from entering the pile body and extending the service life of the foundation pile.

[0016] In summary, this utility model solves the technical problems of existing pile foundation structures in terms of construction efficiency, adaptability, and stability through modular design, quick assembly interface, adjustable support components, and multiple functional designs, providing an efficient, flexible, and reliable pile foundation solution for the field of civil engineering. Attached Figure Description

[0017] Figure 1 This is an overall schematic diagram of the modular civil engineering foundation pile structure of this utility model, showing the assembly relationship of the foundation pile segments, connecting components, and adjusting support components.

[0018] Figure 2 This is a partial sectional view of the foundation pile segment, showing in detail the structural arrangement of the flange interface, groove interface, reinforcing bars, and sliding groove.

[0019] Figure 3 The exploded view of the connecting components shows the locking ring, wedge-shaped locking block, and their engagement with the foundation pile segment interface.

[0020] Figure 4 The structural diagram of the adjustment support assembly highlights the installation positions and connection relationships of the support rod, guide sleeve, and positioning bolts.

[0021] Figure 5 The cross-sectional view of the tapered pile tip shows the specific design of the plug post, wear-resistant coating, and drainage holes.

[0022] The attached figures are labeled as follows:

[0023] 1. Foundation pile segment; 2. Flange interface; 3. Groove interface; 4. Reinforcing rib; 5. Slide groove; 6. Locking ring; 7. Wedge-shaped block; 8. Support rod; 9. Guide sleeve; 10. Positioning bolt; 11. Conical pile tip; 12. Inserted column; 13. Drainage hole; 14. Sealing ring; 15. Annular sealing groove. Detailed Implementation

[0024] This utility model provides a combined modular civil engineering foundation pile structure, the specific implementation of which is described in detail with reference to the accompanying drawings. Figure 1 As shown, the foundation pile structure of this utility model includes a foundation pile segment 1, a connecting assembly, and an adjusting support assembly. The foundation pile segment 1 is a standardized modular unit, with a flange interface 2 and a groove interface 3 at both ends for connecting multiple foundation pile segments 1. The connecting assembly consists of a locking ring 6 and a wedge-shaped locking block 7, used to fix the connecting parts of adjacent foundation pile segments 1. The adjusting support assembly includes a support rod 8, a guide sleeve 9, and a positioning bolt 10, used to adjust the overall verticality and stability of the foundation pile.

[0025] The specific structure of foundation pile segment 1 is as follows: Figure 2As shown, its outer wall has multiple sets of reinforcing ribs 4 evenly distributed along the axial direction. Each set of reinforcing ribs 4 is connected by a transverse connecting plate to form a grid-like reinforcement structure. A groove 5 is provided on the inner side of the reinforcing ribs 4, which is used to install the support rod 8 in the adjustment support assembly. Both ends of the support rod 8 are respectively provided with a ball joint and a threaded end. The ball joint mates with the groove 5, and the threaded end connects to the positioning bolt 10, thereby realizing the length adjustment and angle locking of the support rod 8. A conical pile tip 11 is provided at the bottom of the foundation pile segment 1, and a plug-in post 12 is provided at the top of the conical pile tip 11. The outer wall of the plug-in post 12 is threaded, mates with the threaded hole at the bottom of the foundation pile segment 1, and the connection between the conical pile tip 11 and the foundation pile segment 1 is achieved by rotating the conical pile tip 11. A drainage hole 13 is provided at the bottom of the conical pile tip 11 to drain water accumulated in the pile hole during the sinking process.

[0026] The specific structure of the connecting component is as follows: Figure 3 As shown, the locking ring 6 is a split structure, consisting of two semi-circular rings. Its inner wall has a groove that matches the outer periphery of the flange interface 2. An operating handle is located on the outer wall of the locking ring 6 for manual tightening. A wedge-shaped locking block 7 is positioned within the groove of the locking ring 6, with its inclined surface facing the outer periphery of the flange interface 2. Tightening the locking ring 6 causes the wedge-shaped locking block 7 to press against the flange interface 2, thus achieving a secure fixation of the mating parts. An annular sealing groove 15 is provided on the outer periphery of the flange interface 2, and a sealing ring 14 is positioned correspondingly on the inner wall of the groove interface 3. When the two foundation pile segments 1 are mated, the sealing ring 14 is embedded in the annular sealing groove 15, forming a sealed connection.

[0027] The specific structure of the adjustment support component is as follows: Figure 4 As shown, the guide sleeve 9 is fixed to the outer wall of the foundation pile section 1 and aligned with the sliding groove 5 to guide the telescopic movement of the support rod 8. A limiting groove is provided on the inner wall of the guide sleeve 9, and a limiting protrusion matching the limiting groove is provided on the outer wall of the support rod 8. The limiting protrusion slides along the limiting groove to ensure the stability of the support rod 8 during telescopic movement. The threaded portion of the positioning bolt 10 passes through the side wall of the guide sleeve 9 and engages with the threaded end of the support rod 8. The support rod 8 is locked by rotating the positioning bolt 10.

[0028] The foundation pile segment 1 has an internal cavity filled with lightweight concrete to enhance the overall strength and compressive strength of the pile. An injection port is located at the top of the cavity, and a sealing cap is installed at the injection port to seal the cavity after construction. Multiple hooks are installed on the inner wall of the cavity for suspending sensors or monitoring equipment, facilitating real-time monitoring of the pile's stress state and deformation.

[0029] During construction, the flange interface 2 of one foundation pile segment 1 is first inserted into the groove interface 3 of another foundation pile segment 1, allowing the sealing ring 14 to embed into the annular sealing groove 15, forming a preliminary connection. Then, the locking ring 6 is fitted onto the outer circumference of the mating area, and the locking ring 6 is tightened by operating the handle, causing the wedge-shaped locking block 7 to press against the flange interface 2, thus securing the mating area. During this process, the groove of the locking ring 6 fits tightly against the outer circumference of the flange interface 2, and the inclined surface of the wedge-shaped locking block 7 applies radial pressure, ensuring the firmness and sealing of the mating area.

[0030] The installation process for adjusting the support assembly is as follows: Insert the ball joint of the support rod 8 into the slide groove 5, and guide it through the guide sleeve 9 to allow the support rod 8 to extend and retract along the slide groove 5. After the length of the support rod 8 is adjusted to the appropriate position, rotate the positioning bolt 10 so that its threaded part engages with the threaded end of the support rod 8, thereby locking the position of the support rod 8. By adjusting the length and angle of multiple support rods 8, the overall verticality of the foundation pile and the stability can be adjusted and enhanced.

[0031] The installation process of the conical pile tip 11 is as follows: Figure 5 As shown, the insert post 12 of the conical pile tip 11 is first inserted into the threaded hole at the bottom of the foundation pile segment 1, and then the conical pile tip 11 is rotated to connect it to the foundation pile segment 1. The outer surface of the conical pile tip 11 is covered with a wear-resistant coating to reduce frictional resistance during the sinking process. During the sinking process, the drainage hole 13 can drain the water accumulated in the pile hole, improving construction efficiency.

[0032] The foundation pile segment 1 of this invention enhances the overall strength of the pile body through a grid-like reinforcement structure formed by reinforcing bars 4 and transverse connecting plates. The cavity filled with lightweight concrete further improves the compressive strength of the pile body. The design of the adjustable support assembly allows the foundation pile to adapt to construction needs under different geological conditions, and the precise adjustment of the support rod 8 ensures the verticality and stability of the foundation pile. The wear-resistant coating and drainage hole design of the tapered pile tip 11 effectively reduce resistance during the sinking process and improve construction efficiency, while the hooks in the cavity provide convenience for subsequent monitoring. The cooperation between the sealing ring 14 and the annular sealing groove 15 ensures the sealing of the joint, prevents external impurities from entering the pile body, and extends the service life of the foundation pile.

[0033] To enable those skilled in the art to fully understand and implement this utility model, the specific implementation principle of this utility model is supplemented below with a specific application scenario.

[0034] At the construction site, the foundation pile segment 1 is first placed into the predetermined pile hole position using hoisting equipment. To ensure the initial stability of the pile structure, a conical pile tip 11 is pre-installed at the bottom of the foundation pile segment 1. After the insertion post 12 of the conical pile tip 11 is inserted into the threaded hole at the bottom of the foundation pile segment 1, the conical pile tip 11 is rotated to firmly connect it to the foundation pile segment 1. The wear-resistant coating covering the outer surface of the conical pile tip 11 effectively reduces the frictional resistance between it and the soil during the sinking process, while the drainage hole 13 at its bottom drains the water accumulated in the pile hole during the sinking process, thereby improving construction efficiency.

[0035] Subsequently, the flange interface 2 of the second foundation pile segment 1 is aligned with the groove interface 3 of the first foundation pile segment 1, and the sealing ring 14 is embedded in the annular sealing groove 15 to form a preliminary connection. At this time, the locking ring 6 is fitted around the outer periphery of the connection, and the groove on its inner wall fits tightly against the outer periphery of the flange interface 2. When the operating handle is tightened to tighten the locking ring 6, the inclined surface of the wedge-shaped block 7 applies radial pressure towards the flange interface 2, further pressing the connection and thus achieving a firm fixation. This process not only ensures the mechanical strength of the connection but also achieves good sealing performance through the cooperation of the sealing ring 14 and the annular sealing groove 15, preventing external mud or water from entering the pile body.

[0036] Adjusting the installation of the support components is a crucial step in ensuring the verticality and stability of the foundation pile. The ball joint of the support rod 8 is inserted into the groove 5, and the support rod 8 is guided to extend and retract along the direction of the groove 5 via the guide sleeve 9. The limiting groove of the guide sleeve 9 engages with the limiting protrusion on the outer wall of the support rod 8, ensuring that the support rod 8 maintains precise directionality during extension and retraction. After the support rod 8 is adjusted to the appropriate length, the positioning bolt 10 is rotated to lock its threaded portion with the threaded end of the support rod 8, thereby fixing the position of the support rod 8. By adjusting the length and angle of multiple support rods 8, the overall verticality of the foundation pile can be adjusted, enhancing its stability under complex geological conditions.

[0037] To further enhance the overall strength of the foundation pile, lightweight concrete is filled into the cavity of foundation pile segment 1. After being injected into the cavity through the inlet, the lightweight concrete significantly improves the bearing capacity of the foundation pile due to its excellent compressive strength. Simultaneously, hooks installed on the inner wall of the cavity can be used to suspend sensors or monitoring equipment for real-time monitoring of the pile's stress state and deformation. The inlet is sealed with a cap after construction to prevent external impurities from entering the cavity.

[0038] Throughout the construction process, the grid-like reinforcement structure formed by the reinforcing ribs 4 and the transverse connecting plates provides additional mechanical strength to the foundation pile segment 1, enabling it to withstand larger axial and lateral loads. Furthermore, the modular design of the foundation pile segment 1 allows for flexible adjustment of the total pile length according to actual needs. Multiple foundation pile segments 1 can be quickly joined together via flange interfaces 2 and groove interfaces 3, significantly improving construction efficiency and reducing transportation and assembly costs.

[0039] Through the above steps, the modular civil engineering foundation pile structure of this invention can achieve efficient and stable construction under different geological conditions. Its modular design, rapid assembly interface, and precise adjustment function of the adjustable support components solve the shortcomings of existing foundation pile structures in terms of construction efficiency, adaptability, and stability, providing a reliable technical solution for the field of civil engineering.

[0040] It should be noted that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0041] The above content is only a preferred embodiment of this utility model. For those skilled in the art, many changes can be made in the specific implementation and application scope based on the ideas of this technical content. As long as these changes do not depart from the concept of this utility model, they all fall within the protection scope of this patent.

Claims

1. A modular composite civil engineering foundation pile structure, characterized in that, include: Foundation pile segment; Connecting components are used to secure the joint between adjacent foundation pile segments; and Adjustable support components are used to adjust the overall verticality and stability of the foundation piles; The foundation pile segment is a standardized modular unit, with a flange interface and a groove interface at both ends, and multiple foundation pile segments are connected through the flange interface and the groove interface. The connecting assembly includes a locking ring and a wedge-shaped locking block. The locking ring is sleeved on the outer periphery of the mating part and is fixed by pressing the flange interface with the wedge-shaped locking block. The adjustable support assembly includes a support rod and a positioning bolt. One end of the support rod is provided with a ball joint, and the other end is provided with a threaded end. The ball joint engages with a groove on the outer wall of the foundation pile section, and the threaded end is connected to the positioning bolt.

2. The modular civil engineering foundation pile structure according to claim 1, characterized in that, The outer wall of the foundation pile segment has multiple sets of reinforcing ribs evenly distributed along the axial direction. Each set of reinforcing ribs is connected by a transverse connecting plate to form a grid-like reinforcement structure. The inner side of the reinforcing ribs is provided with a sliding groove.

3. The modular civil engineering foundation pile structure according to claim 1, characterized in that, An annular sealing groove is provided on the outer periphery of the flange interface, and a sealing ring is provided on the inner wall of the groove interface at the corresponding position. When two foundation pile segments are joined, the sealing ring is embedded in the annular sealing groove.

4. The modular civil engineering foundation pile structure according to claim 1, characterized in that, The locking ring is a split structure, consisting of two semi-circular rings. Its inner wall is provided with a groove that matches the outer periphery of the flange interface. The outer wall of the locking ring is provided with an operating handle for manually tightening the locking ring.

5. The modular civil engineering foundation pile structure according to claim 1, characterized in that, The adjusting support assembly also includes a guide sleeve, which is fixed to the outer wall of the foundation pile segment and aligned with the sliding groove. The inner wall of the guide sleeve is provided with a limiting groove, and the outer wall of the support rod is provided with a limiting protrusion that matches the limiting groove. The limiting protrusion slides along the limiting groove.

6. The modular civil engineering foundation pile structure according to claim 1, characterized in that, The bottom of the foundation pile segment is provided with a conical pile tip, the top of the conical pile tip is provided with a plug-in column, the outer wall of the plug-in column is provided with threads, which cooperate with the threaded hole at the bottom of the foundation pile segment, and the bottom of the conical pile tip is provided with a drainage hole.

7. The modular civil engineering foundation pile structure according to claim 1, characterized in that, The foundation pile segment has an internal cavity, an injection port at the top of the cavity, a sealing cap at the injection port, and multiple sets of hooks on the inner wall of the cavity.

8. The modular civil engineering foundation pile structure according to claim 1, characterized in that, The wedge-shaped locking block is set in the slot of the locking ring, with its inclined surface facing the outer periphery of the flange interface. The wedge-shaped locking block is pressed against the flange interface by the tightening action of the locking ring.

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