Static load pressure applying device for prestressed inclined pile

Abstract

The utility model provides a static load pressure applying device for a prestressed inclined pile. The static load pressure applying device comprises a supporting sleeve, a pressing structure, two pressure applying mechanisms and two fixed supporting structures. The interior of the supporting sleeve can be matched with an inclined pile, stroke holes are formed in the left side and the right side of the supporting sleeve, the pressing structure is in sliding fit with the two stroke holes, and the supporting sleeve is obliquely arranged. The two pressure applying mechanisms are arranged at the left end and the right end of the pressing structure in a bilateral symmetry mode, the output end of each pressure applying mechanism is connected with the pressing structure, and each pressing structure is correspondingly connected with one fixed supporting structure. According to the static load pressure applying device for the prestressed inclined pile, the problem that a rock-soil block for static load detection in related technologies can only vertically apply pressure to the prestressed pile, so that the rock-soil block cannot be suitable for static load detection of the inclined pile is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of static load detection of inclined piles, in particular to a static load pressure device for prestressed inclined piles. Background Art

[0002] The foundation pit inclined pile unsupported support technology (hereinafter referred to as inclined pile) is a technology in which the pile body is inclined at a certain angle to the vertical direction to form an inclined pile. The inclined pile is combined with a vertical pile or a pile body with different inclined directions and connected with a crown beam to form an inclined pile combined support structure. Different inclined pile combined support structures can adapt to a variety of support conditions, and can stably control the support deformation and the surrounding environment without horizontal internal support. Compared with the traditional horizontal internal support technology, the foundation pit construction period, cost and building material consumption can be reduced by 20%-40%, greatly reducing the large amount of high-intensity manual labor involved in support construction, and improving the level of industrialized construction of foundation pit engineering.

[0003] When static load testing is performed on prestressed piles, the vertical compressive bearing capacity of a single pile is tested. When strain, displacement sensors or displacement rods are embedded in the pile body, the strain of the pile body or the displacement of the pile cross section can be measured according to relevant specifications, and the layered side resistance and end resistance of the pile can be calculated. The rock and soil resistance on the pile side and the pile end reaches the limit state; static load testing applies vertical pressure to the prestressed pile through the loading of rock and soil blocks. When the bearing capacity of the pile is controlled by the strength of the pile body, the load can be applied according to the design requirements. Since the rock and soil blocks used in static load testing in related technologies can only apply vertical pressure to prestressed piles, the rock and soil blocks are not suitable for static load testing of inclined piles. Summary of the invention

[0004] In view of this, the present invention aims to solve one of the related technical problems at least to a certain extent.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A static load pressure device for prestressed inclined piles, comprising a support sleeve, a pressing structure, two pressure mechanisms and two fixed support structures;

[0007] The interior of the support sleeve can cooperate with the tilting pile, the left and right sides of the support sleeve are provided with travel holes, the clamping structure is slidably matched with the two travel holes, and the support sleeve is tilted;

[0008] The two pressure-applying mechanisms are symmetrically arranged at the left and right ends of the clamping structure, the output end of each pressure-applying mechanism is connected to the clamping structure, and each clamping structure is connected to a corresponding fixed support structure;

[0009] The clamping structure includes a pressure rod and two connecting structures. The two connecting structures are symmetrically arranged at the left and right ends of the pressure rod. Each of the connecting structures is detachably connected to the pressure rod, and each of the connecting structures is connected to a corresponding pressure mechanism.

[0010] Furthermore, the connecting structure includes a fixed sleeve, a fixed block, a connecting rod, a threaded sleeve, a first pressure plate and two connecting plates, the two connecting plates are symmetrically arranged at the front and rear ends of the first pressure plate, the fixed block is arranged in the middle of the connecting rod, the connecting rod is connected to the two connecting plates, the fixed block is fixedly connected to the outer wall of the fixed sleeve, the fixed sleeve is detachably connected to the pressure rod, the threaded sleeve is arranged on the upper end surface of the first pressure plate, and the threaded sleeve is connected to the pressure mechanism.

[0011] Furthermore, the connection structure also includes four first ribs, and the four first ribs are symmetrically arranged at the positions where the fixing sleeve is connected to the fixing block.

[0012] Furthermore, the pressure mechanism includes a jack and a first pad, the output end of the jack is connected to the threaded sleeve, the first pad is arranged at the bottom of the jack, and the first pad is connected to the fixed support structure.

[0013] Furthermore, the fixed support structure includes a support plate, a fixed base and a reinforcement plate, the top of the support plate is provided with a bent edge, the top of the bent edge is fixedly connected to the pad, the bottom of the support plate is fixedly connected to the fixed base, the reinforcement plate is arranged on the top of the support plate, and a second rib plate is provided at the position where the reinforcement plate is connected to the support plate.

[0014] Furthermore, a second pad is provided at the bottom of the fixed base, and a third rib is provided at the position where the fixed base is connected to the support plate.

[0015] Furthermore, the clamping structure also includes a second pressing plate, which is arranged in the middle of the pressing rod, the second pressing plate is fixedly connected to the pressing rod, and the second pressing plate is located inside the supporting sleeve.

[0016] Furthermore, a fourth rib plate is provided at the position where the connecting plate is connected to the first pressing plate.

[0017] Compared with the prior art, the static load pressure device for prestressed inclined piles described in the utility model has the following advantages:

[0018] 1. The support sleeve can effectively fix and support the inclined pile, improving its stability during static load testing. This helps to accurately measure the stress of the pile.

[0019] 2. The clamping structure can slide with the support sleeve to achieve precise pressure on the inclined pile, ensuring that the applied force is uniform and accurate. The clamping structure ensures that there will be no deviation or instability during the pressure application process. Since the clamping structure is connected to the pressure mechanism and cooperates with the fixed support structure, the connection structure can effectively transmit the applied force and ensure the pressure effect.

[0020] 3. The fixed support structure consists of a support plate, a fixed base, a reinforcement plate and other components, which provide solid support and fixation to ensure that the entire device remains stable during the pressure application process. The fixed support structure can withstand high pressure and high torque, ensuring that it will not be deformed or damaged during the pressure application operation, thereby ensuring safe and reliable construction. The firm connection of the fixed support structure can effectively reduce the vibration and shaking of the entire device during the pressure application process, and improve the stability and accuracy of the operation.

[0021] 4. The rock and soil blocks in the static load test in the prior art are replaced by a compression structure to apply vertical pressure, vertical pulling force or horizontal thrust step by step on the top of the pile. In actual use, it has the advantages of saving space, simple equipment and safe operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0023] Figure 1 It is a schematic diagram of a static load pressure device for prestressed inclined piles according to an embodiment of the utility model;

[0024] Figure 2 This is a schematic diagram of the connection structure described in an embodiment of the utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the second pressing plate according to an embodiment of the utility model;

[0026] Figure 4 This is a schematic diagram of the fixed support structure described in an embodiment of the utility model.

[0027] Description of reference numerals:

[0028] 101, support sleeve; 102, travel hole; 201, support plate; 202, reinforcement plate; 203, fixed base; 204, third rib plate; 301, pressure rod; 302, second pressure plate; 401, first pressure plate; 402, connecting plate; 403, fixed block; 404, fixed sleeve; 405, first rib plate; 501, jack; 502, threaded sleeve; 503, first pad. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0030] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0032] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0033] A static load pressure device for prestressed inclined piles, such as Figure 1 As shown, it includes a support sleeve 101, a clamping structure, two pressure mechanisms and two fixed support structures; the interior of the support sleeve 101 can cooperate with the tilted pile, and the left and right sides of the support sleeve 101 are provided with travel holes 102, the clamping structure and the two travel holes 102 are slidably matched, and the support sleeve 101 is tilted; the two pressure mechanisms are symmetrically arranged at the left and right ends of the clamping structure, and the output end of each pressure mechanism is connected to the clamping structure, and each clamping structure corresponds to a fixed support structure connection; through the support sleeve 101, the tilted pile can be effectively fixed and supported, and its stability during the static load detection process can be improved. This helps to accurately measure the stress of the pile body.

[0034] Static load test refers to a test method in which vertical pressure, vertical upward pull or horizontal thrust is applied step by step to the top of the pile, and the settlement, upward pull or horizontal displacement of the top of the pile is observed over time to determine the corresponding single pile vertical compressive bearing capacity, single pile vertical pull-out bearing capacity or single pile horizontal bearing capacity.

[0035] The clamping structure includes a pressure rod 301 and two connecting structures, the two connecting structures are symmetrically arranged at the left and right ends of the pressure rod 301, each connecting structure is detachably connected to the pressure rod 301, and each connecting structure is connected to a pressure mechanism. In this embodiment, the clamping structure also includes a second pressure plate 302, the second pressure plate 302 is arranged in the middle of the pressure rod 301, the second pressure plate 302 is welded to the pressure rod 301, and the second pressure plate 302 is located inside the support sleeve 101. The clamping structure can be slidably matched with the support sleeve 101 to achieve precise pressure on the inclined pile and ensure that the applied force is uniform and accurate. The clamping structure ensures that no deviation or instability will occur during the pressure process. Since the clamping structure is connected to the pressure mechanism and cooperates with the fixed support structure, the connecting structure can effectively transmit the applied force and ensure the pressure effect.

[0036] The connection structure includes a fixed sleeve 404, a fixed block 403, a connecting rod, a threaded sleeve 502, a first pressing plate 401 and two connecting plates 402, the two connecting plates 402 are symmetrically arranged at the front and rear ends of the first pressing plate 401, the fixed block 403 is arranged in the middle of the connecting rod, the connecting rod is connected to the two connecting plates 402, the fixed block 403 is welded to the outer wall of the fixed sleeve 404, the fixed sleeve 404 is connected to the pressing rod 301 by screws, the threaded sleeve 502 is arranged on the upper end surface of the first pressing plate 401, and the threaded sleeve 502 is connected to the pressure mechanism. In this embodiment, the connection structure also includes four first ribs 405, which are symmetrically arranged at the position where the fixed sleeve 404 is connected to the fixed block 403. A fourth rib is provided at the position where the connecting plate 402 is connected to the first pressing plate 401.

[0037] The pressure mechanism includes a jack 501 and a first pad 503 . The output end of the jack 501 is connected to the threaded sleeve 502 . The first pad 503 is arranged at the bottom of the jack 501 . The first pad 503 is connected to the fixed support structure.

[0038] The fixed support structure includes a support plate 201, a fixed base 203 and a reinforcement plate 202. The top of the support plate 201 is provided with a curved edge, the top of the curved edge is welded to the pad, the bottom of the support plate 201 is integrally connected to the fixed base 203, the reinforcement plate 202 is arranged on the top of the support plate 201, and a second rib is provided at the position where the reinforcement plate 202 is connected to the support plate 201. In this embodiment, a second pad is provided at the bottom of the fixed base 203, and a third rib 204 is provided at the position where the fixed base 203 is connected to the support plate 201. The fixed support structure is composed of components such as the support plate 201, the fixed base 203, and the reinforcement plate 202, which provide solid support and fixation to ensure that the entire device remains stable during the pressure application process. The fixed support structure can withstand high pressure and large torque, ensuring that no deformation or damage occurs during the pressure application operation, thereby ensuring safe and reliable construction. The firm connection of the fixed support structure can effectively reduce the vibration and shaking of the entire device during the pressure application process, and improve the stability and accuracy of the operation.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A static load pressure device for prestressed inclined piles, characterized in that: It comprises a supporting sleeve (101), a pressing structure, two pressing mechanisms and two fixed supporting structures; The interior of the support sleeve (101) can cooperate with the tilting pile, the left and right sides of the support sleeve (101) are provided with travel holes (102), the clamping structure is slidably matched with the two travel holes (102), and the support sleeve (101) is arranged tilted; The two pressure-applying mechanisms are symmetrically arranged at the left and right ends of the clamping structure, the output end of each pressure-applying mechanism is connected to the clamping structure, and each clamping structure is connected to a corresponding fixed support structure; The clamping structure comprises a pressure rod (301) and two connecting structures, wherein the two connecting structures are symmetrically arranged at the left and right ends of the pressure rod (301), each of the connecting structures is detachably connected to the pressure rod (301), and each of the connecting structures is connected to a corresponding pressure mechanism.

2. A static load pressure device for prestressed inclined piles according to claim 1, characterized in that: The connection structure comprises a fixed sleeve (404), a fixed block (403), a connecting rod, a threaded sleeve (502), a first pressure plate (401) and two connecting plates (402), wherein the two connecting plates (402) are symmetrically arranged at the front and rear ends of the first pressure plate (401), the fixed block (403) is arranged in the middle of the connecting rod, the connecting rod is connected to the two connecting plates (402), the fixed block (403) is fixedly connected to the outer wall of the fixed sleeve (404), the fixed sleeve (404) is detachably connected to the pressure rod (301), the threaded sleeve (502) is arranged on the upper end surface of the first pressure plate (401), and the threaded sleeve (502) is connected to the pressure mechanism.

3. A static load pressure device for prestressed inclined piles according to claim 2, characterized in that: The connection structure further comprises four first rib plates (405), and the four first rib plates (405) are symmetrically arranged at the positions where the fixing sleeve (404) and the fixing block (403) are connected.

4. A static load pressure device for prestressed inclined piles according to claim 2, characterized in that: The pressure-applying mechanism comprises a jack (501) and a first pad (503), the output end of the jack (501) is connected to the threaded sleeve (502), the first pad (503) is arranged at the bottom of the jack (501), and the first pad (503) is connected to the fixed support structure.

5. A static load pressure device for prestressed inclined piles according to claim 4, characterized in that: The fixed support structure comprises a support plate (201), a fixed base (203) and a reinforcement plate (202); the top of the support plate (201) is provided with a bent edge, the top of the bent edge is fixedly connected to the pad, the bottom of the support plate (201) is fixedly connected to the fixed base (203), the reinforcement plate (202) is arranged on the top of the support plate (201), and a second rib plate is provided at the position where the reinforcement plate (202) and the support plate (201) are connected.

6. A static load pressure device for prestressed inclined piles according to claim 5, characterized in that: A second pad is provided at the bottom of the fixed base (203), and a third rib plate (204) is provided at the position where the fixed base (203) is connected to the support plate (201).

7. A static load pressure device for prestressed inclined piles according to any one of claims 1 to 6, characterized in that: The clamping structure further comprises a second pressing plate (302), wherein the second pressing plate (302) is arranged in the middle of the pressing rod (301), the second pressing plate (302) is fixedly connected to the pressing rod (301), and the second pressing plate (302) is located inside the supporting sleeve (101).

8. The static load pressure device for prestressed inclined piles according to claim 2, characterized in that: A fourth rib plate is provided at the position where the connecting plate (402) is connected to the first pressing plate (401).

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