A substrate bearing capacity detection device and method

Abstract

The present invention provides a base bearing capacity detection device and method, including a detection device body, the detection device body including a bottom plate, a detection component, a lifting mechanism and a traction mechanism, a positioning sleeve is provided in the middle of the bottom plate, a lifting mechanism is installed on the side of the positioning sleeve, a lifting slide is provided on the surface of the lifting mechanism, a motor is installed on the top of the lifting mechanism, a threaded rod is installed on the output end of the motor, and the traction mechanism is installed on the surface of the threaded rod. The base bearing capacity detection device and method adopt a penetration method, by using an impact hammer to impact the bottom detection component, so that it penetrates into the ground, and uses a free fall method without the aid of external pressure equipment, thereby reducing the influence of error factors, and by splicing multiple groups of detection components, three groups of data can be collected simultaneously when detecting the penetration depth into the ground, and the accuracy of the data can be intuitively judged.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to a base bearing capacity detection device and method. Background Art

[0002] The base bearing capacity is a practical professional parameter proposed for foundation design to facilitate the evaluation of base strength and stability. Under the action of load, the base ground will deform. As the load increases, the deformation of the base ground gradually increases. In order to calculate whether the bearing capacity of the base surface can meet the standards required for subsequent construction, it is necessary to use a detection device to detect the base surface. Among them, the flat plate load test is the earliest and most widely used in-situ test method. This test is an in-situ test that applies loads in stages on a rigid pressure plate of a certain size and observes the deformation of the base land under pressure at each level. However, this scheme requires the use of external pressure equipment, so the operating status of the equipment will also affect the final test results, which increases the error factor of the final result. On the other hand, if the conventional detection method touches stones during the test, it will also affect the test results, and this influence is difficult to eliminate. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a substrate bearing capacity detection device and method to solve the problems raised in the above background technology. The present invention can eliminate the influence of power equipment and can intuitively judge whether the data has errors, thereby improving the efficiency of detection.

[0004] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions: a base bearing capacity detection device, including a detection device body, the detection device body including a base plate, a detection component, a lifting mechanism and a traction mechanism, a positioning sleeve is provided in the middle of the base plate, a lifting mechanism is installed on the side of the positioning sleeve, a lifting slot is provided on the surface of the lifting mechanism, a motor is installed on the top of the lifting mechanism, a threaded rod is installed on the output end of the motor, the traction mechanism is installed on the surface of the threaded rod, the lifting mechanism is provided with two groups, and the two lifting mechanisms are installed in a symmetrical form on the side of the detection component, an indicator rod is installed inside the detection component, and an impact hammer is sleeved on the surface of the indicator rod.

[0005] Furthermore, the threaded rod passes through the middle position of the lifting mechanism, a base is provided at the bottom of the lifting mechanism, and the bottom end of the threaded rod is movably connected to the inner side of the base by using a bearing.

[0006] Furthermore, the traction mechanism includes a lifting base and a support rod. A threaded hole is opened in the middle of the lifting base, a rear baffle is installed on the side of the threaded hole, a front baffle is set at the top edge of the lifting base, and a support rod is inserted in the middle of the front baffle.

[0007] Furthermore, an electric push rod is installed on the surface of the rear baffle, and a support sleeve is provided on the surface of the front baffle. The support rod extends outward from the inner side of the support sleeve, and the end of the electric push rod is fixedly connected to the rear end of the support rod.

[0008] Furthermore, a ring is provided on the surface of the support rod, a rope is connected to the surface of the ring, the end of the rope is fixedly connected to the top of the impact hammer, the impact hammer is horizontally suspended on the side of the indicator rod, and the bottom end of the indicator rod is inserted into the interior of the detection component.

[0009] Furthermore, a through hole is provided inside the impact hammer, and the impact hammer is sleeved on the side of the indicator rod through the through hole, and a first scale line is engraved on the surface of the indicator rod.

[0010] Furthermore, the detection assembly is composed of three groups of plug-in boards, and a pressure plate is provided on the top of each plug-in board, an impact plate is installed on the bottom end of the plug-in board, and a card slot is opened on the inner side of the impact plate.

[0011] Furthermore, a second scale line is printed on the surface of each plug-in board, a docking plate is provided at the bottom end of the indicator rod, and the indicator rod is embedded into the inner side of the card slot through the docking plate at the bottom.

[0012] A method for detecting the bearing capacity of a substrate is provided. The following detection steps are completed by a detection device body: step 1, selecting a corresponding detection point on the surface of the substrate and moving the detection device body to the detection point; step 2, using a lifting mechanism and a traction mechanism to cooperate, the middle impact hammer is lifted until a preset impact height is reached; step 3, the traction mechanism is released and a penetration test is performed; step 4, penetration parameter information is collected, which is the bearing capacity parameter of the substrate, and the availability of the data is determined; step 5, the collected data is recorded, and the above process is repeated to collect bearing capacity information at multiple different positions of the substrate.

[0013] Furthermore, in the detection device body, the deadweight of the impact hammer is selected according to the specific detection location or site factors. In step four, the modular splicing structure of the detection component is used to obtain multiple sets of data in a single detection, and the availability of the data is judged based on the degree of difference between the multiple sets of data. In this process, if the difference between the multiple sets of data is too large, the detection data of this time can be deleted, and the detection point can be directly replaced for re-detection.

[0014] Beneficial effects of the present invention: A base bearing capacity detection device and method of the present invention includes a base plate, a lifting mechanism, a base, a positioning sleeve, a lifting slide, a motor, a traction mechanism, a detection component, an impact hammer, a through hole, a rope, a threaded rod, a lifting base plate, a threaded hole, a rear baffle, an electric push rod, a front baffle, a support sleeve, a support rod, a ring, an indicator rod, a plug-in plate, a pressure plate, a second scale line, an impact plate, a slot, a first scale line, and a docking plate.

[0015] 1. This base bearing capacity detection method adopts a penetration method. By using an impact hammer to impact the bottom detection component, it penetrates into the ground. The free fall method does not require the help of external pressure equipment. Therefore, the impact force applied at the same height is constant, thereby reducing the influence of error factors.

[0016] 2. The base bearing capacity detection device can lift the impact hammer at a uniform speed through the traction mechanism on the side. Combined with the two scale lines in the middle, it can quickly determine the lifting height of the impact hammer and collect the final detection data of the detection component, thereby improving the detection efficiency.

[0017] 3. The base bearing capacity detection device adopts multiple sets of detection components to splice together. It can collect three sets of data at the same time when detecting the penetration depth into the underground, thereby avoiding the influence of obstacles on the detection data and being able to intuitively judge the accuracy of the data. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a flow chart of a method for detecting substrate bearing capacity according to the present invention;

[0019] Figure 2 This is a schematic structural diagram of the appearance of a substrate bearing capacity detection device according to the present invention;

[0020] Figure 3 This is a schematic structural diagram of the traction mechanism portion of a substrate bearing capacity detection device according to the present invention;

[0021] Figure 4 This is a structural schematic diagram of a detection component portion of a substrate bearing capacity detection device according to the present invention;

[0022] Figure 5 This is a structural schematic diagram of the plug-in board portion of a base bearing capacity detection device of the present invention;

[0023] In the figure: 1. Bottom plate; 2. Lifting mechanism; 3. Base; 4. Positioning sleeve; 5. Lifting slide; 6. Motor; 7. Traction mechanism; 8. Detection component; 9. Impact hammer; 10. Through hole; 11. Rope; 12. Threaded rod; 13. Lifting base plate; 14. Threaded hole; 15. Rear baffle; 16. Electric push rod; 17. Front baffle; 18. Support sleeve; 19. Support rod; 20. Ring; 21. Indicator rod; 22. Plug-in plate; 23. Pressure plate; 24. Second scale line; 25. Impact plate; 26. Slot; 27. First scale line; 28. Docking plate. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] See also Figures 1 to 5 The present invention provides a technical solution: a base bearing capacity detection device, including a detection device body, the detection device body includes a bottom plate 1, a detection component 8, a lifting mechanism 2 and a traction mechanism 7, a positioning sleeve 4 is provided in the middle of the bottom plate 1, a lifting mechanism 2 is installed on the side of the positioning sleeve 4, a lifting chute 5 is provided on the surface of the lifting mechanism 2, a motor 6 is installed on the top of the lifting mechanism 2, a threaded rod 12 is installed on the output end of the motor 6, the traction mechanism 7 is installed on the surface of the threaded rod 12, the lifting mechanism 2 is provided with two groups, and the two lifting mechanisms 2 are in a symmetrical form. It is installed on the side of the detection component 8, and an indicator rod 21 is installed inside the detection component 8. The surface of the indicator rod 21 is provided with an impact hammer 9. The base bearing capacity detection device is transported by moving the base plate 1. During the detection, the lifting mechanism 2 and the traction mechanism 7 are used to pull the ring 20 upward, and the ring 20 and the rope 11 are used to drive the middle impact hammer 9 to move upward. The impact hammer 9 impacts the bottom detection component 8 at the same height, so that the bottom detection component 8 is pressed and inserted into the measurement point of the base, and then the bearing capacity data can be obtained by reading the different second scale lines 24 on the measuring component.

[0026] In this embodiment, the threaded rod 12 passes through the middle position of the lifting mechanism 2, and a base 3 is provided at the bottom of the lifting mechanism 2. The bottom end of the threaded rod 12 is movably connected to the inner side of the base 3 by using a bearing. The traction mechanism 7 includes a lifting base plate 13 and a support rod 19. A threaded hole 14 is provided in the middle of the lifting base plate 13, and a rear baffle 15 is installed on the side of the threaded hole 14. A front baffle 17 is provided at the top edge of the lifting base plate 13, and a support rod 19 is inserted in the middle of the front baffle 17. The surface of the rear baffle 15 is installed There is an electric push rod 16, and a support sleeve 18 is provided on the surface of the front baffle 17. The support rod 19 extends outward from the inner side of the support sleeve 18, and the end of the electric push rod 16 is fixedly connected to the rear end of the support rod 19. Specifically, after the detection device body is moved to the preset point, the detection component 8 is inserted into the inner side of the positioning sleeve 4, the indicator rod 21 is inserted into the detection component 8, and the impact hammer 9 is sleeved on the surface of the indicator rod 21, and then the traction component is driven upward by starting the motor 6 at the top, which can pull the impact hammer 9 up to complete the preparatory stage process.

[0027] In this embodiment, the surface of the support rod 19 is provided with a collar 20, the surface of the collar 20 is connected with a rope 11, the end of the rope 11 is fixedly connected to the top of the impact hammer 9, the impact hammer 9 is horizontally suspended on the side of the indicator rod 21, the bottom end of the indicator rod 21 is inserted into the interior of the detection component 8, the interior of the impact hammer 9 is provided with a through hole 10, and the impact hammer 9 is sleeved on the side of the indicator rod 21 through the through hole 10, the surface of the indicator rod 21 is engraved with a first scale line 27, and the support of the collar 20 can be quickly and synchronously released through the traction mechanism 7 on the side, and at the same time It can also play the role of lifting the impact hammer 9 at a uniform speed. With the help of the two scale lines in the middle, the lifting height of the impact hammer 9 can be quickly judged and the final detection data of the detection component 8 can be collected, thereby improving the efficiency of the detection. Since the collar 20 is supported by the strut 19, during the impact process, it is necessary to remotely control the contraction of each electric push rod 16 to retract the strut 19 backward. After the strut 19 is retracted from the outside of the lifting chute 5, the collar 20 loses its support. Therefore, the impact hammer 9 in the middle can perform free fall motion until the bottom detection component 8 is inserted into the ground, completing the impact process.

[0028] In this embodiment, the detection component 8 is composed of three groups of plug-in boards 22, and a pressure plate 23 is provided on the top of each plug-in board 22. An impact plate 25 is installed at the bottom of the plug-in board 22. A card slot 26 is opened on the inner side of the impact plate 25. A second scale line 24 is engraved on the surface of each plug-in board 22. A docking plate 28 is provided at the bottom end of the indicator rod 21, and the indicator rod 21 is embedded in the inner side of the card slot 26 through the docking plate 28 at the bottom. By splicing multiple groups of detection components 8, three groups of data can be collected simultaneously when detecting the penetration depth into the underground. Therefore, when the three groups of data have a large difference, it can be judged that the detection is correct. During the test, there is a foreign object at the bottom, thereby avoiding the influence of the obstruction on the test data, and the accuracy of the data can be judged intuitively. Each plug-in board 22 and the impact plate 25 at the bottom are independent of each other. Therefore, after the three groups of plug-in boards 22 are affected by the top impact hammer 9, they are inserted downward independently. If one of the impact plates 25 hits an obstacle such as a stone, the embedding depth will be different from that of other normally inserted impact plates 25, which will be reflected on the second scale line 24. It can be intuitively judged that the displayed data of the three second scale lines 24 are greatly different. In this state, it can be represented that the collected data is invalid or has low accuracy.

[0029] This embodiment also provides a substrate bearing capacity detection method, which completes the following detection steps through the detection device body: step 1, select the corresponding detection point on the surface of the substrate, and move the detection device body to the detection point; step 2, use the lifting mechanism 2 and the traction mechanism 7 to lift the middle impact hammer 9 until it reaches the preset impact height; step 3, release the traction mechanism 7 and perform a penetration test; step 4, collect penetration parameter information, which is the bearing capacity parameter of the substrate, and judge the availability of the data; step 5, record the collected data, and repeat the above process to collect the bearing capacity information of multiple different positions of the substrate. In the detection device body, the dead weight of the impact hammer 9 is 0. The selection is made according to the specific detection location or site factors. In step four, the modular splicing structure of the detection component 8 is used to obtain multiple sets of data in a single detection, and the availability of the data is judged based on the degree of difference between the multiple sets of data. If the difference between the multiple sets of data is too large during this process, the detection data of this time can be deleted, and the detection point can be directly replaced for re-detection. The penetration method is adopted, and the impact hammer 9 is used to impact the bottom detection component 8 to make it penetrate into the ground. The base bearing capacity of the area is judged by judging the depth of penetration into the ground. The free fall method does not require the help of external pressure equipment, so the impact force applied at the same height is constant, thereby reducing the influence of error factors.

[0030] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims, not the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be included within the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0031] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A substrate bearing capacity detection device, comprising a detection device body, characterized in that: The detection device body comprises a base plate (1), a detection component (8), a lifting mechanism (2) and a traction mechanism (7), a positioning sleeve (4) is provided in the middle of the base plate (1), the detection component (8) is inserted into the inner side of the positioning sleeve (4), a lifting mechanism (2) is installed on the side of the positioning sleeve (4), a lifting slot (5) is provided on the surface of the lifting mechanism (2), a motor (6) is installed on the top of the lifting mechanism (2), a threaded rod (12) is installed on the output end of the motor (6), the traction mechanism (7) is installed on the surface of the threaded rod (12), the lifting mechanism (2) is provided with two groups, and the two lifting mechanisms (2) are symmetrically installed on the side of the detection component (8), an indicator rod (21) is installed inside the detection component (8), an impact hammer (9) is sleeved on the surface of the indicator rod (21), and the traction mechanism (7) is connected to the impact hammer (9); The detection assembly (8) is composed of three groups of plug-in boards (22), and a pressure plate (23) is provided on the top of each plug-in board (22), and an impact plate (25) is installed on the bottom end of the plug-in board (22), and a card slot (26) is provided on the inner side of the impact plate (25); The surface of each plug-in board (22) is engraved with a second scale line (24), the bottom end of the indicator rod (21) is provided with a docking plate (28), and the indicator rod (21) is embedded into the inner side of the card slot (26) through the docking plate (28) at the bottom.

2. A substrate bearing capacity detection device according to claim 1, characterized in that: The threaded rod (12) passes through the middle position of the lifting mechanism (2), a base (3) is provided at the bottom of the lifting mechanism (2), and the bottom end of the threaded rod (12) is movably connected to the inner side of the base (3) by using a bearing.

3. A substrate bearing capacity detection device according to claim 2, characterized in that: The traction mechanism (7) comprises a lifting base plate (13) and a support rod (19); a threaded hole (14) is provided in the middle of the lifting base plate (13); a rear baffle (15) is installed on the side of the threaded hole (14); a front baffle (17) is provided at the top edge of the lifting base plate (13); and a support rod (19) is inserted in the middle of the front baffle (17).

4. A substrate bearing capacity detection device according to claim 3, characterized in that: An electric push rod (16) is installed on the surface of the rear baffle (15), a support sleeve (18) is provided on the surface of the front baffle (17), the support rod (19) extends outward from the inner side of the support sleeve (18), and the end of the electric push rod (16) is fixedly connected to the rear end of the support rod (19).

5. The substrate bearing capacity detection device according to claim 3, characterized in that: The surface of the support rod (19) is provided with a ring (20), the surface of the ring (20) is connected to a rope (11), the end of the rope (11) is fixedly connected to the top of the impact hammer (9), the impact hammer (9) is horizontally suspended on the side of the indicator rod (21), and the bottom end of the indicator rod (21) is inserted into the interior of the detection component (8).

6. The substrate bearing capacity detection device according to claim 5, characterized in that: A through hole (10) is provided inside the impact hammer (9), and the impact hammer (9) is sleeved on the side of the indicator rod (21) through the through hole (10). The surface of the indicator rod (21) is engraved with a first scale line (27).

7. A method for detecting substrate bearing capacity, characterized in that: The following detection steps are completed by using the detection device body in claim 1: step 1, selecting a corresponding detection point on the surface of the substrate and moving the detection device body to the detection point; step 2, using the lifting mechanism (2) and the traction mechanism (7) to cooperate, the middle impact hammer (9) is lifted until it reaches the preset impact height; step 3, releasing the traction mechanism (7) and performing a penetration test; step 4, collecting penetration parameter information, which is the bearing capacity parameter of the substrate, and judging the availability of the data; step 5, recording the collected data, and repeating the above process to collect the bearing capacity parameters of multiple different positions of the substrate.

8. A method for detecting substrate bearing capacity according to claim 7, characterized in that: In the detection device body, the deadweight of the impact hammer (9) is selected according to the specific detection location or site factors. In step 4, by utilizing the modular splicing structure of the detection component (8), multiple sets of data can be obtained in a single detection, and the usability of the data can be judged based on the degree of difference between the multiple sets of data. In this process, if the difference between the multiple sets of data is too large, the detection data of this time can be deleted, and the detection point can be directly replaced and re-detected.

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