CN216948468U - Building pile foundation static load detection device - Google Patents

Abstract

The utility model discloses a static load detection device for a building pile foundation. It includes an upper positioning plate, a lower positioning plate, and a plurality of connecting columns connected to the lower positioning plate. At least one pressing device is arranged between the center of the lower surface of the upper positioning plate and the center of the upper surface of the lower positioning plate. The center of the lower surface is provided with an installation position, the upper surface of the upper positioning plate is provided with a placement position, the lower positioning plate is installed on the pile foundation through the installation position, and a counterweight is placed in the placement position of the upper positioning plate, and then the top pressing device is used. The top pressure is tested for static load. After the above structure is adopted, the neutrality during use is ensured, the stress points are concentrated on the pile foundation, and the top pressing device can always be in a horizontal and vertical state without tilting during the detection process, thereby not only supporting the stress It is stable, avoids potential safety hazards during the test, and ensures the accuracy of the test results. In addition, the horizontal and vertical positions can be easily determined during operation, which improves the test efficiency.

Description

A construction pile foundation static load detection device

technical field

The utility model relates to a detection device for static load test of building pile foundations, in particular to a static load detection device of building pile foundations.

Background technique

With the rapid development of the construction industry, in order to ensure the quality of the construction project, it is necessary to test the bearing capacity of the foundation and the pile foundation during the construction process. The most important parameter in the construction quality, the static load test of the pile foundation is a technology used in the engineering to detect the bearing capacity of the pile foundation. In the prior art, the jack is usually directly used and a simple auxiliary support is installed on the jack. During the load test, under the vertical load, if the jack on the upper surface is not placed horizontally and vertically, the resultant force of the jack will appear eccentric, and the existing auxiliary support is difficult to ensure the accurate position of the jack without reliable positioning. Therefore, the jack is easy to tilt under pressure, which interferes with the vertical load on the top of the pile, which not only affects the test results, but also increases the danger during the test. In severe cases, it will collapse and cause safety accidents and cause heavy losses. The coordination is not in place, and the use and operation are also very inconvenient.

SUMMARY OF THE INVENTION

The technical problem to be solved by the utility model is to provide a construction pile foundation static load detection device that can conveniently and quickly determine the horizontal and vertical positions, has good neutrality, and has stable support force, thereby ensuring the detection results and eliminating potential safety hazards.

In order to solve the above technical problems, the static load detection device for building pile foundations of the present invention includes an upper positioning plate, a lower positioning plate, and a plurality of connecting columns connected to the lower positioning plate and used for supporting the upper positioning plate. At least one pressing device is arranged between the center of the lower surface and the center of the upper surface of the lower locating plate, the center of the lower surface of the lower locating plate is provided with an installation position matched with the pile foundation, and the upper surface of the upper locating plate is provided with a counterweight for placing counterweights. The placement position of the block, the lower positioning plate is installed on the pile foundation through the installation position, and the counterweight block is placed in the placement position of the upper positioning plate, and then the static load detection is carried out by the top pressure of the top pressure device.

The upper half of each connecting column is provided with a positioning block, and the upper positioning plate is sleeved on the connecting column and supported on the positioning block.

The pressing device is a jack, a positioning groove is provided in the center of the upper surface of the lower positioning plate, and the fixed end of the jack is fixedly installed on the upper surface of the lower positioning plate through the positioning groove.

The center of the lower surface of the upper positioning plate is provided with a spherical groove, and the telescopic end of the jack is set as a universal ball head placed in the spherical groove.

The installation position is an installation groove which is arranged in the center of the lower surface of the lower positioning plate and is matched with the outer diameter of the pile foundation.

The placement position is a cross groove provided on the upper surface of the upper positioning plate.

A plurality of rollers are also installed on the lower surface of the lower positioning plate.

A horizontal detector is arranged on the upper surface of the lower positioning plate, and a vertical detector is arranged on the outer surface of the top pressing device.

A pressing device is arranged between the center of the lower surface of the upper positioning plate and the center of the upper surface of the lower positioning plate.

Three evenly distributed pressing devices are arranged between the center of the lower surface of the upper positioning plate and the center of the upper surface of the lower positioning plate.

After the above structure is adopted, the installation groove and the foundation pile are installed through the center of the lower surface of the lower positioning plate, so that the center of gravity is at the center position. The top pressure of the top pressure device at the position is detected by static load to ensure the neutrality during use, so that the force point is concentrated on the pile foundation, and the top pressure device can always be in a horizontal and vertical state during the detection process. Inclination avoids the occurrence of eccentricity, which not only stabilizes the support force, avoids potential safety hazards during the test, but also ensures the accuracy of the test results. In addition, the horizontal and vertical positions can be easily determined during use and operation. Improved detection efficiency.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the first embodiment of the present utility model;

Fig. 2 is the front view structure schematic diagram of the second embodiment of the present utility model;

Fig. 3 is the bottom view structure schematic diagram of the second embodiment of the present utility model;

FIG. 4 is a schematic top-view structural diagram of the third embodiment of the present invention with the upper positioning plate removed.

Detailed ways

The following describes the static load detection device for building pile foundations of the present invention in further detail with reference to the accompanying drawings and specific embodiments.

Example 1:

As shown in Figure 1, the static load detection device for building pile foundations in this embodiment includes an upper positioning plate 1, a lower positioning plate 2, and four connecting columns 3 connected to the lower positioning plate and used to support the upper positioning plate. It can be seen from the figure that the four corners of the lower positioning plate are provided with threaded holes, and the bottom ends of the four connecting columns 3 are provided with threads that cooperate with the threaded holes, so that the four connecting columns 3 can be connected to the edge of the lower positioning plate. Position, the upper half of each connecting column 3 is provided with a positioning block 7, the four corners of the upper positioning plate 1 are provided with through holes, and the upper positioning plate 1 is sleeved on each connecting column through the through holes and supported on the The positioning block 7, of course, can also be provided with threads on the upper half of the connecting column, so that after the upper positioning plate 1 is installed, it can be positioned and installed by screwing the nut, and the center of the lower surface of the upper positioning plate 1 and the lower positioning A top pressing device 4 is arranged between the center of the upper surface of the plate 2, and the center of the lower surface of the lower positioning plate 2 is provided with an installation position 5 that cooperates with the pile foundation. In this embodiment, the installation position 5 is set on the lower positioning plate. The installation groove in the center of the lower surface of the bottom surface is matched with the outer diameter of the pile foundation, so that the positioning and installation with the pile foundation can be directly realized by using the installation groove. The placement position 6 mentioned in the embodiment is a cross groove provided on the upper surface of the upper positioning plate. Then use the top pressure of the top pressure device 4 to perform static load detection.

Further, the said top pressing device 4 is a jack, the center of the upper surface of the lower positioning plate 2 is provided with a positioning groove, the fixed end of the jack is fixedly installed on the upper surface of the lower positioning plate 2 through the positioning groove, and the lower part of the upper positioning plate 1 is fixed. The center of the surface is provided with a spherical groove, and the telescopic end of the jack is set as a universal ball head placed in the spherical groove.

Embodiment 2:

As shown in FIGS. 2 and 3 , the static load detection device for building pile foundations in this embodiment is an improvement on the basis of Embodiment 1. Specifically, on the basis of Embodiment 1, it is also Four rollers 8 are installed on the four corners of the lower surface, and the rollers are preferably universal wheels. In addition, a level detector 9 is provided on the upper surface of the lower positioning plate 2, and the outer surface of the top pressing device 4 is provided. A vertical detector 10 is provided.

Embodiment three:

As shown in FIG. 4 , the structure of the construction pile foundation static load detection device of this embodiment is roughly the same as that of the second embodiment, and the difference lies in that the center of the lower surface of the upper positioning plate 1 and the center of the upper surface of the lower positioning plate 2 There are three top pressing devices 4 evenly distributed along the center point between them. Similarly, a horizontal detector 9 is provided on the upper surface of the lower positioning plate 2, and a vertical detector 10 is provided on the outer surface of the top pressing device 4.

Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples, and changes, modifications, additions or replacements made by those skilled in the art within the essential scope of the present invention are also It should belong to the protection scope of the present invention.

Claims (10)

1. A construction pile foundation static load detection device, characterized in that it comprises an upper positioning plate (1), a lower positioning plate (2) and a plurality of connecting columns ( 3) At least one pressing device (4) is arranged between the center of the lower surface of the upper positioning plate (1) and the center of the upper surface of the lower positioning plate (2), and the lower surface of the lower positioning plate (2) is provided with at least one pressing device (4). The center is provided with a mounting position (5) that cooperates with the pile foundation, the upper surface of the upper positioning plate (1) is provided with a mounting position (6) for placing the counterweight, and the lower positioning plate (2) passes through the mounting position (5) Install on the pile foundation and place the counterweight in the placement position of the upper positioning plate (1), and then use the top pressure of the top pressure device (4) to perform static load detection. 2 . The static load detection device for building pile foundations according to claim 1 , wherein the upper half of each of the connecting columns ( 3 ) is provided with a positioning block ( 7 ), and the upper positioning plate ( 1 ). ) is sleeved on the connecting column and supported on the positioning block (7). 3 . The static load detection device for building pile foundations according to claim 1 or 2 , wherein the top pressing device ( 4 ) is a jack, and a positioning groove is provided in the center of the upper surface of the lower positioning plate ( 2 ). 4 . , the fixed end of the jack is fixedly installed on the upper surface of the lower positioning plate (2) through the positioning groove. 4 . The static load detection device for building pile foundations according to claim 3 , wherein a spherical groove is provided in the center of the lower surface of the upper positioning plate ( 1 ), and the telescopic end of the jack is set to be placed in the spherical groove. 5 . Universal ball head inside. 5. The static load detection device for building pile foundations according to claim 1, 2 or 4, characterized in that: the installation position (5) is an installation that is arranged at the center of the lower surface of the lower positioning plate and matched with the outer diameter of the pile foundation groove. 6 . The static load detection device for building pile foundations according to claim 5 , wherein the placement position ( 6 ) is a cross groove provided on the upper surface of the upper positioning plate. 7 . 7 . The static load detection device for building pile foundations according to claim 1 , 2 , 4 or 6 , wherein a plurality of rollers are also installed on the lower surface of the lower positioning plate ( 2 ). 8 . 8 . The static load detection device for building pile foundations according to claim 7 , wherein a level detector is provided on the upper surface of the lower positioning plate ( 2 ), and the outer surface of the top pressing device ( 4 ) is provided with a level detector. 9 . There is a vertical detector on it. 9 . The static load detection device for building pile foundations according to claim 8 , characterized in that: a ceiling is provided between the center of the lower surface of the upper positioning plate ( 1 ) and the center of the upper surface of the lower positioning plate ( 2 ). 10 . pressure device (4). 10 . The static load detection device for building pile foundations according to claim 8 , characterized in that: between the center of the lower surface of the upper positioning plate ( 1 ) and the center of the upper surface of the lower positioning plate ( 2 ), three uniform Distributed top pressure device (4).

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