Reinforcing device for single-pile vertical compression resistance static load test pile head

Abstract

The utility model discloses a reinforcing device for a single pile vertical compression resistance static load test pile head, which comprises a fixing ring, a plurality of mounting grooves are uniformly distributed and formed in the surface of the fixing ring, a supporting plate is fixedly connected to the bottom of the inner side surface of each mounting groove, an adjusting assembly is arranged on the inner side surface of each mounting groove and is connected with two reinforcing rings, and the two reinforcing rings are fixedly connected with the fixing ring. A plurality of clamping assemblies are arranged on the inner side faces of the two reinforcing rings, the two ends of each reinforcing ring are in threaded connection with two fastening bolts, the tail ends of the fastening bolts are in threaded connection with nuts, two inserting holes are formed in the two ends of the top face of the sliding block, and inserting rods are arranged on the inner sides of the inserting holes in a penetrating mode. According to the utility model, the fixing ring, the adjusting assembly, the reinforcing ring, the clamping assembly, the fastening bolt and the nut are arranged, so that the outer surface of the pile head is reinforced, the stability of the pile head in a test is improved, meanwhile, the device is suitable for reinforcing pile heads with different heights, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of a single pile vertical compressive static load test, in particular to a single pile vertical compressive static load test pile head reinforcement device. Background Art

[0002] Pile foundation has the advantages of high vertical bearing capacity, good integrity, small foundation settlement and strong anti-overturning ability. It is the main foundation type of high-rise buildings. With the continuous expansion of the scale of urban construction in my country, there are more and more high-rise and super-high-rise buildings, and some projects are restricted by geological conditions. The design value of the single pile bearing capacity of the pile foundation is getting larger and larger. The on-site single pile vertical compressive static load test is the most direct and effective method to determine the vertical compressive bearing capacity of a single pile. This requires that the pile foundation not only needs to ensure the vertical bearing capacity of the pile body, but also the junction between the top of the pile and the jack of the static load test should meet the concentrated compressive capacity. During the test of the existing pile head, the stability of the pile head is insufficient, and it is easy to shake or become unstable when external pressure is applied, which affects the stability of the pile head during the test. For this reason, we propose a reinforcement device for the pile head of a single pile vertical compressive static load test. Utility Model Content

[0003] The utility model aims to provide a reinforcement device for a pile head of a single pile in a vertical compressive static load test, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reinforcement device for a pile head of a single pile vertical compressive static load test, comprising a fixing ring, the surface of the fixing ring is evenly distributed and has a plurality of mounting grooves, the bottom of the inner side surface of the mounting groove is fixedly connected to a support plate, the inner side surface of the mounting groove is provided with an adjustment component, the adjustment component is connected to two reinforcement rings, the inner sides of the two reinforcement rings are provided with a plurality of clamping components, both ends of the two reinforcement rings are threadedly connected to two fastening bolts, and the ends of the fastening bolts are threadedly connected to nuts.

[0005] Preferably, the adjusting assembly includes a threaded rod, one end of the threaded rod is rotatably connected to the inner side of the mounting groove close to the fixing ring, the end of the threaded rod away from the mounting groove passes through the fixing ring, the side of the threaded rod away from the mounting groove is fixedly connected to a handwheel, the threaded rod is threadedly connected to a slider, the top surface of the slider is fixedly connected to a first fixing seat, the first fixing seat is hinged to a support rod, the top end of the support rod is hinged to a second fixing seat, and the second fixing seat is fixedly connected to the lower end of the outer side of the reinforcement ring.

[0006] Preferably, the clamping assembly includes a spring, the spring is fixedly connected to the upper end of the inner side surface of the reinforcement ring, the end of the spring away from the reinforcement ring is fixedly connected to a clamping plate, the clamping plate is fixedly connected to a sliding rod on the side close to the spring, the sliding rod is located on the inner side of the spring, and the end of the sliding rod away from the clamping plate is slidably connected to the reinforcement ring.

[0007] Preferably, two insertion holes are provided at both ends of the top surface of the slider, and insertion rods are passed through the inner sides of the insertion holes.

[0008] Preferably, the side surface of the slider is slidably connected to the side surface of the mounting groove, and the bottom surface of the slider is slidably connected to the top surface of the support plate.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The utility model is provided with a fixing ring, an adjusting component, a reinforcing ring, a clamping component, a fastening bolt and a nut. The pile head is passed through the fixing ring, and the sliding rod is pulled outward so that the clamping plate squeezes the spring and the clamping plate is sleeved on the outer surface of the pile head. Under the action of the spring, the clamping plate is clamped on the outer surface of the pile head, and the nut and the fastening bolt are tightened so that the reinforcing ring and the clamping component are fixed on the outer surface of the pile head. The hand wheel is turned so that the threaded rod drives the sliding block to approach the pile head, and the support rod moves downward around the second fixing seat so that the fixing ring abuts against the bottom surface, and the fixing ring and the support rod support the fixing ring, thereby completing the support and reinforcement of the pile head, improving the stability of the pile head in the test, and at the same time being suitable for reinforcing pile heads of different heights, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the adjustment component of the utility model;

[0013] Figure 3 This is a schematic diagram of the structure of the clamping assembly of the utility model.

[0014] In the figure: 1. fixing ring; 2. mounting groove; 3. support plate; 4. adjustment assembly; 41. threaded rod; 42. hand wheel; 43. slider; 44. first fixing seat; 45. support rod; 46. second fixing seat; 5. reinforcement ring; 6. clamping assembly; 61. spring; 62. clamping plate; 63. slide rod; 7. fastening bolt; 8. nut; 9. socket; 10. plug rod. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figure 1-3 The utility model provides a technical solution: a reinforcement device for a pile head of a single pile vertical compressive static load test, comprising a fixing ring 1, a plurality of mounting grooves 2 evenly distributed and opened on the surface of the fixing ring 1, a support plate 3 welded to the bottom of the inner side of the mounting groove 2, an adjustment component 4 installed on the inner side of the mounting groove 2, a plurality of clamping components 6 installed on the inner sides of two reinforcement rings 5, both ends of the two reinforcement rings 5 ​​are threadedly connected with two fastening bolts 7, a nut 8 is threadedly connected to the end of the fastening bolt 7, two insertion holes 9 are opened at both ends of the top surface of the slider 43, and an insertion rod 10 is penetrated inside the insertion holes 9.

[0017] The adjusting assembly 4 includes a threaded rod 41, one end of the threaded rod 41 is rotatably connected to the inner side of the mounting groove 2 close to the fixing ring 1, the end of the threaded rod 41 away from the mounting groove 2 passes through the fixing ring 1, the handwheel 42 is installed on the side of the threaded rod 41 away from the mounting groove 2 by bolts, the slider 43 is threadedly connected to the threaded rod 41, the first fixing seat 44 is installed on the top surface of the slider 43 by bolts, the bottom end of the support rod 45 is hinged to the first fixing seat 44, the top end of the support rod 45 is hinged to the second fixing seat 46, the second fixing seat 46 is installed at the lower end of the outer side of the reinforcement ring 5 by bolts, the side of the slider 43 is slidably connected to the side of the mounting groove 2, and the bottom surface of the slider 43 is slidably connected to the top surface of the support plate 3.

[0018] The clamping assembly 6 includes a spring 61, which is welded to the upper end of the inner side of the reinforcement ring 5. The clamping plate 62 is welded to the end of the spring 61 away from the reinforcement ring 5. The sliding rod 63 is installed on the side of the clamping plate 62 close to the spring 61 by bolts. The sliding rod 63 is located on the inner side of the spring 61, and the end of the sliding rod 63 away from the clamping plate 62 is slidably connected to the reinforcement ring 5.

[0019] Working principle: When the utility model is in use, the pile head is passed through the fixing ring 1, and the sliding rod 63 is pulled outward, so that the clamping plate 62 squeezes the spring 61, and the clamping plate 62 is sleeved on the outer surface of the pile head. Under the action of the spring 61, the clamping plate 62 is clamped on the outer surface of the pile head, and the nut 8 and the fastening bolt 7 are tightened to fix the reinforcement ring 5 and the clamping assembly 6 on the outer surface of the pile head. The hand wheel 42 is turned so that the threaded rod 41 drives the sliding block 43 to approach the pile head, and the support rod 45 moves downward around the second fixing seat 46, so that the fixing ring 1 abuts against the bottom surface, thereby completing the support and reinforcement of the pile head, improving the stability of the pile head in the test, and is also suitable for reinforcing pile heads of different heights. The insertion rod 10 is passed through the insertion hole 9 and nailed into the ground, and the fixing ring 1 is fixed to the ground. The utility model has the advantages of easy use and good use effect.

[0020] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reinforcement device for a pile head of a single pile for a vertical compressive static load test, comprising a fixing ring (1), characterized in that: The surface of the fixing ring (1) is evenly distributed and provided with a plurality of mounting grooves (2); a support plate (3) is fixedly connected to the bottom of the inner side surface of the mounting groove (2); an adjustment component (4) is arranged on the inner side surface of the mounting groove (2); the adjustment component (4) is connected to two reinforcement rings (5); the inner sides of the two reinforcement rings (5) are provided with a plurality of clamping components (6); both ends of the two reinforcement rings (5) are threadedly connected with two fastening bolts (7); the ends of the fastening bolts (7) are threadedly connected with nuts (8).

2. A reinforcement device for a pile head of a single pile for vertical compressive static load test according to claim 1, characterized in that: The adjustment assembly (4) comprises a threaded rod (41), one end of the threaded rod (41) is rotatably connected to a side of the inner side of the mounting groove (2) close to the fixing ring (1), the end of the threaded rod (41) away from the mounting groove (2) passes through the fixing ring (1), the side of the threaded rod (41) away from the mounting groove (2) is fixedly connected to a hand wheel (42), the threaded rod (41) is threadedly connected to a slider (43), the top surface of the slider (43) is fixedly connected to a first fixing seat (44), the first fixing seat (44) is hinged to a support rod (45), the top end of the support rod (45) is hinged to a second fixing seat (46), and the second fixing seat (46) is fixedly connected to the lower end of the outer side of the reinforcement ring (5).

3. A reinforcement device for a pile head of a single pile for vertical compressive static load test according to claim 1, characterized in that: The clamping assembly (6) comprises a spring (61), wherein the spring (61) is fixedly connected to the upper end of the inner side surface of the reinforcement ring (5), and the end of the spring (61) away from the reinforcement ring (5) is fixedly connected to a clamping plate (62), and the side of the clamping plate (62) close to the spring (61) is fixedly connected to a sliding rod (63), and the sliding rod (63) is located on the inner side of the spring (61), and the end of the sliding rod (63) away from the clamping plate (62) is slidably connected to the reinforcement ring (5).

4. A reinforcement device for a pile head of a single pile for vertical compressive static load test according to claim 2, characterized in that: Two insertion holes (9) are provided at both ends of the top surface of the slider (43), and an insertion rod (10) is inserted into the inner side of the insertion hole (9).

5. A reinforcement device for a pile head of a single pile in a vertical compressive static load test according to claim 2, characterized in that: The side surface of the slider (43) is slidably connected to the side surface of the mounting groove (2), and the bottom surface of the slider (43) is slidably connected to the top surface of the support plate (3).

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