Static load compression test device for pile foundation

Abstract

The utility model provides a pile foundation static load compression test device, which relates to the technical field of pile foundation static load compression test devices, solves the problem that the existing pile foundation static load compression test is troublesome to build, and comprises a first cross beam, a pair of second cross beams and a pair of support frames, the first cross beam and the second cross beam are connected with the supporting frame through a fixing mechanism, the fixing mechanism comprises a plurality of threaded holes formed in the two ends of the first cross beam and the two ends of the second cross beam and further comprises a plurality of fixing bolts, the threaded ends of the fixing bolts penetrate through the supporting frame and are screwed into the threaded holes, and a supporting assembly is installed at the bottom of the supporting frame. Through cooperative use of the first cross beam, the second cross beam, the supporting frame, the fixing mechanism and the supporting assembly, assembling is not needed, the working efficiency is improved, meanwhile, leveling can be conducted, and the practicability is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to a kind of pile foundation static load compression test device technical field, more specifically, it is especially related to a kind of pile foundation static load compression test device. BACKGROUND

[0002] Pile foundation static load compression test is the method that vertical pressure is gradually applied on pile foundation, and pile top settlement is observed to determine the vertical compressive bearing capacity of pile foundation. The test can intuitively and reliably evaluate the bearing capacity of pile foundation, providing an important basis for engineering design and construction. Through the loading reaction system, loading device and measurement system, the accuracy and reliability of test data are ensured.

[0003] Based on the above, the present inventors found that there are the following problems: most of the current pile foundation static load compression test builds a load-bearing platform around the pile foundation, and then uses a jack to test. It is troublesome to build, and there may be unevenness around the pile foundation, which affects the detection effect.

[0004] Therefore, in view of the above, the existing structure and defects are improved, and a pile foundation static load compression test device is provided to achieve a more practical value. INVENTION CONTENTS

[0005] To solve the above technical problems, the utility model provides a kind of pile foundation static load compression test device to solve the problem that current pile foundation static load compression test is troublesome when building.

[0006] The purpose and effect of the pile foundation static load compression test device of the utility model are achieved by the following specific technical means:

[0007] A kind of pile foundation static load compression test device, including first crossbeam and a pair of second crossbeam, still including a pair of support frame, first crossbeam and second crossbeam are connected between support frame by fixed mechanism, the fixed mechanism includes multiple threaded holes opened in the both ends of first crossbeam and second crossbeam, still including multiple fixed bolts, the threaded end of fixed bolt is threaded into threaded hole by penetrating support frame, the bottom of support frame is equipped with support assembly.

[0008] Among them, the support assembly includes a pair of sleeves installed at the bottom of the second crossbeam, a moving cylinder is installed in the sleeve, a placing platform is installed on the surface of the moving cylinder, the moving cylinder is in contact with the placing platform, a rotating rod is installed in the moving cylinder, a thread is arranged on the surface of the rotating rod, a thread groove matched with the thread is arranged on the inner wall of the moving cylinder, a supporting leg is installed at the bottom of the thread, an extension rod is installed on the surface of the non-threaded part of the rotating rod, and the moving cylinder and the sleeve are connected by a limiting mechanism.

[0009] The limiting mechanism comprises a pair of limiting blocks mounted on the surface of the moving cylinder and a pair of limiting grooves opened in the inner wall of the sleeve, the limiting grooves and the limiting blocks are matched, and the limiting grooves do not extend to the bottom of the sleeve.

[0010] The extension rod has a pair of rods and is symmetrically distributed on the surface of the rotating rod.

[0011] The supporting foot is rotationally connected with the rotating rod.

[0012] The surface of the second cross beam is provided with a supporting step.

[0013] The surface of the supporting step is provided with a pair of hoisting members.

[0014] Compared with the prior art, the pile foundation static load compression test device has the following beneficial effects:

[0015] The first cross beam, the second cross beam, the supporting frame, the fixing mechanism and the supporting assembly are used in cooperation, the jack is placed on the surface of the pile foundation, then the device is hoisted by the crane, the first cross beam is placed above the jack, the supporting assembly can support when the placing area is uneven, the extension rod is pushed, the extension rod drives the rotating rod to rotate, the rotating rod drives the moving cylinder to lift, the moving cylinder drives the sleeve to lift, the sleeve drives the supporting frame to lift, thereby driving the first cross beam and the second cross beam to lift, and the horizontal of the first cross beam and the second cross beam is guaranteed, then the counterweight is hoisted on the first cross beam and the second cross beam, the counterweight is placed, the first cross beam is lifted by starting the jack, and the compression resistance of the pile foundation is tested, the fixing mechanism can conveniently disassemble the first cross beam or the second cross beam, thereby conveniently replacing, the device can be assembled without assembling, the working efficiency is improved, and the practicability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic view of the pile foundation static load compression test device.

[0017] Figure 2 It is a partial assembly schematic view of the pile foundation static load compression test device.

[0018] Figure 3 It is an assembly schematic view of the supporting assembly of the pile foundation static load compression test device.

[0019] In the drawing, the correspondence between the component names and the drawing numbers is as follows:

[0020] 1, first cross beam; 2, second cross beam; 3, supporting frame;

[0021] 4, fixing mechanism; 401, threaded hole; 402, fixing bolt;

[0022] 5, support assembly; 501, sleeve; 502, moving cylinder; 503, placing platform; 504, rotating rod; 505, thread; 506, support leg; 507, extension rod;

[0023] 6, limiting mechanism; 601, limiting block; 602, limiting groove;

[0024] 7, support step; 8, hoisting piece. DETAILED DESCRIPTION

[0025] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0026] In the description of the present application, unless otherwise specified and limited, the meaning of "a plurality of" is two or more; The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. Therefore, it cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; It can be mechanically connected, or it can be electrically connected; It can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] Embodiment:

[0029] As shown in the accompanying Figure 1 to the accompanying Figure 3 :

[0030] The utility model provides a pile foundation static load compression test device, including first crossbeam 1 and a pair of second crossbeam 2, still including a pair of support frame 3, first crossbeam 1 and second crossbeam 2 are connected with support frame 3 through fixed mechanism 4, fixed mechanism 4 includes the multiple threaded holes 401 of setting in first crossbeam 1 and second crossbeam 2 both ends, still including multiple fixed bolts 402, the threaded end of fixed bolt 402 is passed through support frame 3 and turns into threaded hole 401, the bottom of support frame 3 is installed with support assembly 5.

[0031] Wherein, the support assembly 5 includes a pair of sleeve 501 installed at the bottom of second crossbeam 2, a moving cylinder 502 is installed in the sleeve 501, a placing platform 503 is installed on the surface of the moving cylinder 502, the moving cylinder 502 is in contact with the placing platform 503, a rotating rod 504 is installed in the moving cylinder 502, a thread 505 is arranged on the surface of the rotating rod 504, a thread groove is arranged on the inner wall of the moving cylinder 502, the thread 505 is matched with the thread groove, a support foot 506 is installed at the bottom of the thread 505, an extension rod 507 is installed on the surface of the rotating rod 504 without the thread 505, the moving cylinder 502 and the sleeve 501 are connected through a limiting mechanism 6.

[0032] Through the cooperation of first crossbeam 1, second crossbeam 2, support frame 3, fixed mechanism 4 and support assembly 5, during use, first place a jack on the surface of the pile foundation, then use a crane to lift the device, place first crossbeam 1 above the jack, at this time, the support assembly 5 can be supported, when the placement area is uneven, the extension rod 507 can be pushed, the extension rod 507 will drive the rotating rod 504 to rotate when pushed, the rotating rod 504 will drive the moving cylinder 502 to rise and fall when rotating, the moving cylinder 502 will drive the sleeve 501 to rise and fall when rising and falling, the sleeve 501 will drive the support frame 3 to rise and fall when rising and falling, thereby driving the first crossbeam 1 and the second crossbeam 2 to rise and fall, and then the first crossbeam 1 and the second crossbeam 2 are guaranteed to be horizontal, then hoist the counterweight on the first crossbeam 1 and the second crossbeam 2, after the counterweight is placed, the jack can be started to lift the first crossbeam 1, thereby testing the compression resistance of the pile foundation, the fixed mechanism 4 can facilitate the disassembly of the first crossbeam 1 or the second crossbeam 2, thereby facilitating replacement, through the above design, assembly is not required, work efficiency is improved, and leveling can be performed, thereby improving practicality.

[0033] Wherein, the limiting mechanism 6 includes a pair of limiting blocks 601 installed on the surface of the moving cylinder 502 and a pair of limiting grooves 602 arranged on the inner wall of the sleeve 501, the limiting grooves 602 are matched with the limiting blocks 601, and the limiting grooves 602 do not extend to the bottom of the sleeve 501.

[0034] Through the use of the limiting mechanism 6, the moving cylinder 502 can be limited, avoiding the device lifting the moving cylinder 502 off, and also avoiding the moving cylinder 502 from rotating when rotating the rotating rod 504.

[0035] The elongated rod 507 has a pair of symmetrically distributed surfaces on the rotating rod 504.

[0036] Through the use of a pair of elongated rods 507, when one of the elongated rods 507 is pushed inward, the other elongated rod 507 can be pushed, and the elongated rod 507 can be sleeved with an extension pipe on the surface during use, thereby increasing the length of the power arm and saving labor.

[0037] The support foot 506 is rotatably connected with the rotating rod 504.

[0038] Through the above design, since the friction between the support foot 506 and the ground is greater than the friction between the rotating rod 504 and the support foot 506, it can save more labor.

[0039] The surface of the second cross beam 2 is provided with a support step 7.

[0040] Through the use of the support step 7, the support force of the first cross beam 1 and the second cross beam 2 can be improved.

[0041] The surface of the support step 7 is provided with a pair of lifting members 8.

[0042] Through the use of the lifting member 8, the device can be easily lifted.

[0043] The embodiments of the present application are given for the purpose of example and description, and are not exhaustive or limit the present application to the disclosed forms. Many modifications and variations are obvious to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present application, and to enable those skilled in the art to understand the present application so as to design various embodiments with various modifications suitable for specific purposes.

Claims

1. A device for static load compression testing of a pile foundation, characterized by: The utility model provides a support assembly, including first crossbeam (1) and a pair of second crossbeam (2), still including a pair of support frame (3), first crossbeam (1) and second crossbeam (2) are connected with support frame (3) through fixed mechanism (4), fixed mechanism (4) includes a plurality of threaded holes (401) that are opened in the both ends of first crossbeam (1) and second crossbeam (2), still includes a plurality of fixed bolts (402), the threaded end of fixed bolt (402) is passed through support frame (3) and turns into threaded hole (401), the bottom of support frame (3) is equipped with support assembly (5).

2. The static load compression test device for pile foundation according to claim 1, characterized in that: The support assembly (5) includes a pair of sleeves (501) installed at the bottom of the second crossbeam (2), a moving cylinder (502) is installed in the sleeve (501), a placement platform (503) is installed on the surface of the moving cylinder (502), the moving cylinder (502) is in contact with the placement platform (503), a rotating rod (504) is installed in the moving cylinder (502), a screw thread (505) is arranged on the surface of the rotating rod (504), a screw groove is arranged on the inner wall of the moving cylinder (502) and matched with the screw thread (505), a supporting leg (506) is installed at the bottom of the screw thread (505), an extension rod (507) is installed on the surface of the rotating rod (504) without the screw thread (505), and the moving cylinder (502) and the sleeve (501) are connected through a limiting mechanism (6).

3. The static load compression test device for pile foundation according to claim 2, characterized in that: The limiting mechanism (6) includes a pair of limiting blocks (601) installed on the surface of the moving cylinder (502) and a pair of limiting grooves (602) arranged on the inner wall of the sleeve (501), the limiting grooves (602) are matched with the limiting blocks (601), and the limiting grooves (602) do not extend to the bottom of the sleeve (501).

4. The static load compression test device for pile foundation according to claim 3, characterized in that: The extension rod (507) has a pair of extension rods symmetrically distributed on the surface of the rotating rod (504).

5. The static load compression test device for pile foundation according to claim 4, characterized in that: The supporting leg (506) is rotatably connected with the rotating rod (504).

6. The static load compression test device for pile foundation according to claim 5, characterized in that: A supporting step (7) is arranged on the surface of the second crossbeam (2).

7. The static load compression test device for pile foundation according to claim 6, characterized in that: A pair of lifting members (8) are installed on the surface of the supporting step (7).

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