Static load test device for pile foundation detection

Abstract

The utility model discloses a static load test device for pile foundation detection, which comprises a pile foundation with the top extending out of the ground, a hoop arranged on the pile foundation, a test beam fixed with the ground and erected above the pile foundation, the test beam is horizontally arranged left and right, two dowel bars which are symmetrically arranged left and right and vertically extend up and down are respectively arranged on the front side and the rear side of the test beam, all the dowel bars are arranged in a two-by-two rectangular array, the dowel bars are sleeved with upper supporting plates and lower supporting plates which slide up and down, the lower supporting plates and the upper supporting plates are arranged above the test beam, the bottoms of the dowel bars are connected with the hoops, the tops of the dowel bars are provided with stud parts, and the stud parts are in threaded connection with limiting nuts for limiting the upper supporting plates to be separated from the dowel bars. An oil cylinder with one end abutting against the upper supporting plate and the other end abutting against the lower supporting plate is arranged between the upper supporting plate and the lower supporting plate. The static load test device has the characteristics that the tension source is not biased, the test result is accurate, the overall function is complete, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering measurement, and more specifically, to a static load test device for pile foundation detection. Background Art

[0002] When a pile foundation buried in the ground is subjected to a static load test, it usually includes applying pressure or tension to the pile foundation, testing the axial displacement of the pile foundation relative to the ground under a specific test force and a specific test time, and comparing the displacement with a reference value to provide feedback on the test results. However, during the tensile test of the pile foundation, the offset of the tension source will seriously affect the test results. Therefore, when arranging the tension source, strict requirements are placed on the position. Accordingly, the utility model proposes a static load test device for pile foundation testing. Utility Model Content

[0003] The utility model aims to overcome the above-mentioned deficiencies in the prior art and provide a static load test device for pile foundation detection, which has the characteristics of no bias in the tension source and accurate test results.

[0004] To solve the above technical problems, the purpose of the utility model is achieved as follows: the utility model involves a static load test device for pile foundation detection, including a pile foundation with a top extending out of the ground, a hoop is provided on the pile foundation, a test beam fixed to the ground is erected above the pile foundation, the test beams are arranged horizontally left and right, and two force transmission rods which are symmetrically arranged left and right and also vertically extended up and down are respectively provided on the front and back sides of the test beam, all the force transmission rods are arranged in a two-by-two rectangular array, an upper support plate and a lower support plate for sliding up and down are sleeved on the force transmission rod, the lower support plate and the upper support plate are both arranged above the test beam, the bottom of the force transmission rod is connected to the hoop, and the top has a stud portion, and a limit nut for limiting the upper support plate from detaching from the force transmission rod is threadedly connected to the stud portion, and a cylinder with one end against the upper support plate and the other end against the lower support plate is provided between the upper support plate and the lower support plate.

[0005] The utility model is further configured as follows: a proximal limit hole and a distal limit hole extending horizontally left and right are respectively provided on the front and rear sides of the lower support plate, the proximal limit hole and the distal limit hole are respectively symmetrically arranged front and back, a limit baffle plate covering the front and rear sides of the test beam is inserted into the proximal limit hole or the distal limit hole, and a gripping portion is provided on the top of the limit baffle plate to prevent it from falling.

[0006] The utility model is further configured as follows: a sleeve which is arranged between the limiting nut and the upper support plate is sleeved on the stud portion.

[0007] In summary, the utility model has the following beneficial effects: the static load test device for pile foundation detection involved in the utility model, by adding a lower support plate between the force-applying cylinder and the test beam, a limit baffle is arranged on the lower support plate so as to be aligned front and back with the test beam, so that the arranged lower support plate is pressed on the test beam symmetrically front and back, and is positioned together with the force transmission rod, so that the force source is centered, thereby achieving the effect that the tension source is not biased and the test result is accurate, the overall function is perfect, and the practicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0009] Figure 2 It is a partial structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0010] In order to enable those skilled in the art to better understand the technical solution of the utility model, the preferred implementation scheme of the utility model is described below in conjunction with specific embodiments, but it should be understood that these descriptions are only for further illustrating the features and advantages of the utility model, rather than limiting the patent requirements of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0011] The utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0012] Example 1

[0013] See also Figure 1 and Figure 2 As shown, a static load test device for pile foundation detection involved in the present embodiment comprises a pile foundation 1 with a top extending out of the ground, a hoop 2 is provided on the pile foundation 1, a test beam 3 fixed to the ground is erected above the pile foundation 1, the test beam 3 is horizontally arranged left and right, and two force transmission rods 4 which are symmetrically arranged left and right and also vertically extended up and down are respectively provided on the front and rear sides of the test beam 3, all the force transmission rods 4 are arranged in a two-by-two rectangular array, an upper support plate 5 and a lower support plate 6 which slide up and down are sleeved on the force transmission rod 4, and the lower support plate 6 and the upper support plate 5 are both arranged above the test beam 3, the bottom of the force transmission rod 4 is connected to the hoop 2, and the top has a stud portion 7, and the stud portion 7 is threadedly connected with a limit nut 8 which limits the upper support plate 5 from being detached from the force transmission rod, and a cylinder 9 with one end against the upper support plate and the other end against the lower support plate is provided between the upper support plate 5 and the lower support plate 6.

[0014] In this embodiment, an upper support plate 5 is provided above the oil cylinder 9 for moving up and down relative to the force transmission rod 4, and a lower support plate 6 is provided below the oil cylinder 9 for moving up and down relative to the force transmission rod 4, so that the four force transmission rods 4 are not easily offset after being connected to the clamp 2, and it is more convenient to arrange the oil cylinder 9 at the center position of the upper support plate 5 and the lower support plate 6, so that the force source is kept on the axis of the pile foundation 1.

[0015] Example 2

[0016] See also Figure 1 and Figure 2 As shown, the static load test device for pile foundation detection involved in this embodiment is further configured on the basis of Example 1, wherein the front and rear sides of the lower support plate 6 are respectively provided with a proximal limit hole 10 and a distal limit hole 11 extending horizontally left and right, and the proximal limit hole 10 and the distal limit hole 11 are respectively symmetrically arranged front and back, and a limit baffle 12 is inserted into the proximal limit hole 10 or the distal limit hole 11 to block the front and rear sides of the test beam 3, and a gripping portion 13 is provided on the top of the limit baffle 12 to prevent it from falling.

[0017] In this embodiment, different specifications of the test beam 3 are required for different force sources, resulting in different overall widths of the test beam 3. Therefore, by setting the proximal limit plug hole 10 and the distal limit plug hole 11 on the lower support plate 6, the plug-in limit baffle 12 can be selected to enhance the flexibility of the device.

[0018] A gripping portion 13 is provided on the top of the limiting baffle 12, which is used for gripping and for limiting the falling.

[0019] Example 3

[0020] See also Figure 1 and Figure 2 As shown, the static load test device for pile foundation detection involved in this embodiment is further configured on the basis of embodiments 1 and 2, wherein the stud portion 7 is sleeved with a sleeve 14 arranged between the limit nut 8 and the upper support plate 5 .

[0021] In this embodiment, the sleeve 14 is provided to serve as a transition connection.

[0022] The static load test device for pile foundation inspection involved in the utility model increases a lower support plate between the force-applying cylinder and the test beam, and arranges a limit baffle on the lower support plate which can be aligned with the test beam front and back, so that the arranged lower support plate is pressed on the test beam front and back symmetrically, and is positioned together with the force transmission rod, so that the force source is centered, thereby achieving the effect that the tension source is not biased and the test result is accurate. The overall function is perfect and the practicability is strong.

[0023] Unless otherwise specified, in the present invention, the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientation or positional relationship are based on the orientation or positional relationship actually shown, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in combination with the embodiments and according to specific circumstances.

[0024] Unless otherwise clearly specified and limited, in the present invention, the terms "disposed", "connected" and "connected" 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 direct connection, or 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 according to specific circumstances.

[0025] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A static load test device for pile foundation detection, comprising a pile foundation with the top extending out of the ground, characterized in that: The pile foundation is provided with a clamp, and a test beam fixed to the ground is erected above the pile foundation, the test beam is horizontally arranged left and right, and two force transmission rods which are symmetrically arranged left and right and extend vertically up and down are respectively provided on the front and rear sides of the test beam, and all the force transmission rods are arranged in a two-by-two rectangular array, and an upper support plate and a lower support plate which slide up and down are sleeved on the force transmission rod, and the lower support plate and the upper support plate are both arranged above the test beam, the bottom of the force transmission rod is connected with the clamp, and the top has a stud portion, and a limit nut which limits the upper support plate from detaching from the force transmission rod is threadedly connected to the stud portion, and a cylinder with one end against the upper support plate and the other end against the lower support plate is provided between the upper support plate and the lower support plate.

2. The static load test device for pile foundation detection according to claim 1, characterized in that: The front and rear sides of the lower support plate are respectively provided with a proximal limit socket and a distal limit socket which extend horizontally left and right. The proximal limit socket and the distal limit socket are respectively symmetrically arranged front to back. A limit baffle plate which blocks the front and rear sides of the test beam is inserted into the proximal limit socket or the distal limit socket, and a gripping portion is provided on the top of the limit baffle plate to prevent it from falling.

3. The static load test device for pile foundation detection according to claim 1 or 2, characterized in that: The stud part is sleeved with a sleeve arranged between the limiting nut and the upper supporting plate.

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