Building pile foundation detection device

Abstract

The utility model belongs to the technical field of pile foundation detection, and particularly relates to a building pile foundation detection device. The device comprises two reinforcing structures which are arranged on the two sides of a test pile and used for mounting buttresses. The reinforcing structure at least comprises two bases, grooves and reinforcing pieces, wherein the grooves are formed in the upper ends of the bases and used for fixing the buttresses, and the reinforcing pieces are arranged at at least one side end of each groove and abut against the side faces of the buttresses. Through the arrangement of the reinforcing structure, the positioning and mounting efficiency of the device is improved, and the construction time is saved; meanwhile, leveling of the device is facilitated, the situation that gaps exist between the device and the surface of foundation soil due to the uneven surface of the foundation soil, and the risk of cracking of the device is increased is avoided, and accurate data measurement is facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of pile foundation testing technology, and specifically relates to a building pile foundation testing device. Background Technology

[0002] A static load testing device is a device used to test the performance and load-bearing capacity of materials or structures under static loads. It typically consists of load sensors, a data acquisition system, and a control system. The working principle of a static load testing device is to apply a static load to the material or structure under test and measure parameters such as deformation, stress, and displacement to evaluate its performance and load-bearing capacity. Depending on specific needs and the characteristics of the test object, a static load testing device can perform tests using single-point loading, multi-point loading, and uniform loading methods.

[0003] However, existing static load testing devices for pile foundation testing are often set up on external construction sites. When using these devices, temporary support frames and return beams are usually erected on-site to protect the pile foundation and serve as a platform for placing the load. Pre-construction measurement and positioning are required, which is time-consuming.

[0004] Document CN222100979U discloses a static load testing device for pile foundation testing, comprising a pile foundation, a hydraulic rod fixedly installed at the top of the pile foundation, a jack fixedly installed at the bottom of the hydraulic rod, a base plate fixedly installed on the inner side of the pile foundation, and control components and protective components provided on the surface of the pile foundation. The protective components include a fixed block, a support rod, a connecting plate, and a fixing plate. The working principle of the device is as follows: when the sliding block slides away from the fixed rod, it drives the support rod to move in the same direction as the sliding block. When the support rod moves, it drives the support block to slide away from the pile foundation inside the base plate, thereby increasing the stress-bearing area of ​​the pile foundation and preventing the pile foundation from tilting due to excessive pressure or uneven ground during the static load testing, thus improving the stability and protection of the pile foundation during use.

[0005] However, the device still has the following problems: when the load on the upper part of the device is increased, the force on the protective component increases, which can easily lead to the obstruction of the sliding of the protective component. Moreover, the increase in load will change the position of the protective component, which can easily affect the test data. Utility Model Content

[0006] To address the aforementioned problems, the purpose of this utility model is to provide a building pile foundation testing device. By setting up a reinforcement structure, the device's positioning and installation efficiency is improved, saving construction time. At the same time, it facilitates the leveling of the device, avoiding gaps between the device and the foundation soil surface caused by unevenness, which would increase the risk of device cracking and is conducive to accurate data measurement.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] A building pile foundation testing device includes two reinforcement structures disposed on both sides of a test pile and used for installing supports; the reinforcement structure includes at least two bases, a groove disposed on the upper end of the base for fixing the support, and a reinforcement member disposed on at least one side end of the groove and abutting against the side of the support.

[0009] As a further preferred embodiment of the present invention, the reinforcing member includes a clamping plate protruding from the surface of the groove and abutting against the side of the support, and a control rod slidably connected to the base and having its end connected to the clamping plate for controlling the force between the clamping plate and the side of the support.

[0010] As a further preferred embodiment of this utility model, the control rod has an external thread on its surface, the base has an internal thread hole that is adapted to the external thread and is used to allow the control rod to pass through, and a fastening nut is screwed onto the control rod on the surface of the base away from the support.

[0011] As a further preferred embodiment of the present invention, the reinforcing structure includes a pressure-reducing member for connecting two adjacent bases, the lower surface of which is at the same level as the lower surface of the base.

[0012] As a further preferred embodiment of the present invention, the pressure-reducing component includes two side support plates that are arranged opposite to each other and abut against two sides of the base, and two base plates that are respectively arranged at the lower ends of the two side support plates and are at the same level as the lower surface of the base.

[0013] As a further preferred embodiment of the present invention, the pressure-reducing component further includes an opening disposed on the side support plate for passing through the control rod.

[0014] As a further preferred embodiment of this utility model, at least two first support structures located on both sides of the test pile are provided between the two reinforcement structures; the two ends of a single first support structure are respectively connected to the sides of the two bases or the two control rods.

[0015] As a further preferred embodiment of the present invention, the first support structure includes two first internal threaded cylinders, a first external threaded rod screwed onto the two first internal threaded cylinders respectively, and a second internal threaded cylinder for connecting the two first external threaded rods.

[0016] As a further preferred embodiment of this utility model, at least two second support structures located on both sides of the test pile are provided between the two first support structures.

[0017] As a further preferred embodiment of the present invention, the second support structure includes at least two mounting holes respectively disposed on two opposing first external threaded rods, a second external threaded rod with both ends passing through the two mounting holes respectively, and a limiting nut for fixing the second external threaded rod at the position of the mounting hole. Attached Figure Description

[0018] Appendix Figure 1 This is a schematic diagram of the structure of this utility model from a side view.

[0019] Appendix Figure 2 This is a partial structural diagram of the present invention. Figure 1 .

[0020] Appendix Figure 3 This is a schematic diagram of the structure of this utility model from a top view.

[0021] Appendix Figure 4 This is a partial structural diagram of the present invention. Figure 2 .

[0022] Appendix Figure 5 This is a partial structural diagram of the present invention. Figure 3 .

[0023] Attached diagrams: a) test pile, b) pier, c) reaction frame, d) jack, e) load block, 1) reinforced structure.

[0024] 11. Base; 12. Groove; 13. Reinforcing component; 14. Pressure relief component;

[0025] Clamping plate 131, control rod 132, internal threaded hole 133, fastening nut 134;

[0026] Side support plate 141, bottom plate 142, opening 143;

[0027] First support structure 21, second support structure 22;

[0028] First internal threaded cylinder 211, first external threaded rod 212, second internal threaded cylinder 213;

[0029] Mounting hole 221, second external thread rod 222, limit nut 223, sleeve 224. Detailed Implementation

[0030] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0032] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" 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; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] It is worth noting that the building pile foundation testing device provided by this utility model is used for static load testing, that is, applying vertical pressure, vertical uplift force, or horizontal thrust to the top of the pile in stages, and observing the settlement, uplift displacement, or horizontal displacement of the pile top over time to determine the corresponding test method of single pile vertical compressive bearing capacity, single pile vertical uplift bearing capacity, or single pile horizontal bearing capacity. Furthermore, this device optimizes the structure of existing counterweight platform reaction devices, aiming to reduce construction time and increase the bearing area of ​​the device to prevent excessive pressure from causing cracking of the supports or settlement of the foundation soil. Existing counterweight platform reaction devices generally include two supports b positioned on both sides of the test pile a, a reaction frame c mounted on the two supports b, at least two secondary beams located on both sides of the reaction frame c, jacks d set on the test pile a, and a load block e stacked on the stacking platform formed by the reaction frame c and the secondary beams. The load block e is preferably hoisted onto the stacking platform in one go.

[0034] As attached Figure 1 ~Appendix Figure 5 As shown, this embodiment provides a building pile foundation testing device, including two reinforcement structures 1 disposed on both sides of the test pile a and used for installing the support pier b; the reinforcement structure 1 includes at least two bases 11, a groove 12 disposed on the upper end of the base 11 and used for fixing the support pier b, and a reinforcement member 13 disposed on at least one side end of the groove 12 and abutting against the side of the support pier b.

[0035] Two reinforcing structures 1 are distributed along the length of the pier b, and each reinforcing structure 1 consists of multiple bases 11 arranged at appropriate intervals. Grooves 12 formed on the bases 11 create a U-shaped structure with an open upper end. The width of the grooves 12 is greater than the width of the pier b. Two reinforcing members 13 are respectively provided on the two opposite inner sides of each groove 12, clamping and fixing the pier b to prevent it from sliding within the grooves 12. Supported by the multiple bases 11, the pier b is erected. The advantages of this arrangement are: first, the bases 11 facilitate positioning and installation on the foundation soil, making it easier to locate the position of the pier b and ensuring that the distance between the pier b and the test pile a is controlled at approximately 2.5m, conforming to operating specifications; second, the bases 11 are easy to level, preventing gaps between the pier b and the foundation soil surface caused by unevenness when the pier b is placed directly on the foundation soil, thus increasing the risk of cracking.

[0036] In a preferred embodiment, the reinforcement member 13 includes a clamping plate 131 protruding from the surface of the groove 12 and abutting against the side of the support b, and a control rod 132 slidably connected to the base 11 and connected at its end to the clamping plate 131 for controlling the force between the clamping plate 131 and the side of the support b. Furthermore, the control rod 132 has an external thread, and the base 11 has an internal threaded hole 133 adapted to the external thread for the control rod 132 to pass through. A fastening nut 134 is screwed onto the control rod 132 on the surface of the base 11 away from the support b. The clamping plate 131 and the control rod 132 can be connected by means such as welding or screwing, and the surface of the clamping plate 131 abutting against the support b can be provided with measures such as protruding ridges to increase friction and reduce wear, thereby increasing the fastening effect of the clamping plate 131 on the support b. The control rod 132 controls the pressure of the clamping plate 131 on the support b by screwing it into the internal threaded hole 133, and the position of the control rod 132 is fixed by the fastening nut 134.

[0037] In a preferred embodiment, the reinforcement structure 1 includes a pressure-reducing member 14 for connecting two adjacent bases 11, with its lower surface flush with the lower surface of the base 11. The pressure-reducing member 14 includes two opposing side support plates 141 that abut against two sides of the base 11, two base plates 142 respectively disposed at the lower ends of the two side support plates 141 and flush with the lower surface of the base 11, and an opening 143 on the side support plates 141 for passing through the control rod 132. The length of the pressure-reducing member 14 is at least greater than the distance between the two bases 11, and the pressure-reducing member 14 is installed between the two bases 11 to ensure that the space between the two bases 11 and the surface of the foundation soil is supported and reinforced by the pressure-reducing member 14, thereby increasing the contact area between the reinforcement structure 1 and the foundation soil and reducing pressure. Furthermore, the pressure-reducing component 14 is positioned by the control rod 132 passing through the opening 143, and the connection between the pressure-reducing component 14 and the base 11 is completed by the fastening nut 134, which reduces the number of installation points and improves work efficiency.

[0038] As some preferred embodiments, at least two first support structures 21 are provided between the two reinforcement structures 1 on both sides of the test pile a; the two ends of a single first support structure 21 are respectively connected to the sides of the two bases 11 or the two control rods 132.

[0039] More preferably, the first support structure 21 is connected to two control rods 132. The first support structure 21 includes two first internally threaded cylinders 211, a first externally threaded rod 212 screwed onto the two first internally threaded cylinders 211 respectively, and a second internally threaded cylinder 213 for connecting the two first externally threaded rods 212. Two first internal threaded cylinders 211 are connected to the ends of the control rod 132 by welding or bolting, and the first internal threaded cylinders 211 are installed near the side of the control rod 132 of the test pile a. One end of the two first external threaded rods 212 is screwed to the first internal threaded cylinder 211, and the other end is screwed to the second internal threaded cylinder 213. The screwing method at both ends is conducive to controlling the screwing depth at both ends of the first external threaded rods 212, so as to control the overall length of the first support structure 21. Furthermore, the second internal threaded cylinder 213 is located in the middle of the first support structure 21, and the side of the second internal threaded cylinder 213 abuts against the side of the test pile a or the jack d, which improves the fixing effect of the test pile a or the jack d and prevents the test pile a or the jack d from tilting under force, thus affecting the test data.

[0040] In some preferred embodiments, at least two second support structures 22 are provided between the two first support structures 21, located on both sides of the test pile a. Each second support structure 22 includes at least two mounting holes 221 respectively provided on two opposing first external threaded rods 212, a second external threaded rod 222 passing through both mounting holes 221 at both ends, and a limiting nut 223 for fixing the position of the second external threaded rod 222 in the mounting holes 221. Preferably, multiple mounting holes 221 are provided on the same first external threaded rod 212 to facilitate adjustment of the position of the second external threaded rod 222, ensuring that the second external threaded rod 222 abuts against the side of the test pile a or the jack d, and, in conjunction with the first support structure 21, can fully clamp and fix the test pile a or the jack d. Furthermore, a sleeve 224 can be provided in the middle of the second external threaded rod 222 to abut against the side of the test pile a or the jack d, and the sleeve 224 is screwed onto the second external threaded rod 222 to facilitate adjustment of the position of the sleeve 224.

[0041] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A building pile foundation testing device, characterized in that: It includes two reinforcement structures (1) disposed on both sides of the test pile (a) and used for installing the support (b); the reinforcement structure (1) includes at least two bases (11), a groove (12) disposed on the upper end of the base (11) and used for fixing the support (b), and a reinforcement member (13) disposed on at least one side end of the groove (12) and abutting against the side of the support (b).

2. The building pile foundation testing device according to claim 1, characterized in that: The reinforcement member (13) includes a clamping plate (131) protruding from the surface of the groove (12) and abutting against the side of the support (b), and a control rod (132) slidably connected to the base (11) and whose end is connected to the clamping plate (131) for controlling the force between the clamping plate (131) and the side of the support (b).

3. The building pile foundation testing device according to claim 2, characterized in that: The control rod (132) has an external thread on its surface, and the base (11) has an internal thread hole (133) that is adapted to the external thread and is used to allow the control rod (132) to pass through. A fastening nut (134) is screwed onto the control rod (132) on the surface of the base (11) away from the support (b).

4. The building pile foundation testing device according to claim 3, characterized in that: The reinforcement structure (1) includes a pressure-reducing member (14) for connecting two adjacent bases (11) and whose lower surface is at the same level as the lower surface of the base (11).

5. The building pile foundation testing device according to claim 4, characterized in that: The pressure-reducing component (14) includes two side support plates (141) that are arranged opposite to each other and abut against two sides of the base (11), and two bottom plates (142) that are respectively arranged at the lower ends of the two side support plates (141) and are at the same level as the lower surface of the base (11).

6. The building pile foundation testing device according to claim 5, characterized in that: The pressure-reducing component (14) also includes an opening (143) disposed on the side support plate (141) and used for passing through the control rod (132).

7. A building pile foundation testing device according to claim 2, characterized in that: At least two first support structures (21) are provided between the two reinforcement structures (1) on both sides of the test pile (a); the two ends of a single first support structure (21) are respectively connected to the sides of the two bases (11) or the two control rods (132).

8. A building pile foundation testing device according to claim 7, characterized in that: The first support structure (21) includes two first internal threaded cylinders (211), a first external threaded rod (212) screwed onto the two first internal threaded cylinders (211) respectively, and a second internal threaded cylinder (213) for connecting the two first external threaded rods (212).

9. A building pile foundation testing device according to claim 7, characterized in that: At least two second support structures (22) are provided between the two first support structures (21) located on both sides of the test pile (a).

10. A building pile foundation testing device according to claim 9, characterized in that: The second support structure (22) includes at least two mounting holes (221) respectively provided on two opposing first external thread rods (212), a second external thread rod (222) passing through the two mounting holes (221) at both ends, and a limiting nut (223) for fixing the position of the second external thread rod (222) in the mounting hole (221).

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