Geotechnical investigation intensity test device

Abstract

The utility model relates to geological geotechnical investigation strength test device, including base, test subassembly and clamping assembly, test subassembly includes pressure part and pressure test part, pressure test part sets up at the top of base, pressure part coaxially sets up in the upper of pressure test part, and clamping assembly is located pressure test part top, clamping assembly includes first V type clamp, second V type clamp, first mobile part and second mobile part, and first V type clamp's big mouth end and second V type clamp's big mouth end each other is set up, second V type clamp is fixed on the base, and first V type clamp's big mouth end is equipped with plane clamp plate, and second mobile part is used for driving plane clamp plate second mobile part to be close to or away from second V type clamp's big mouth end. The utility model compared with traditional device, effectively reduced because sample displacement, loosening or clamping improper leads to test error, thereby significantly improved the accuracy and reliability of geological geotechnical investigation strength test.

Description

Technical Field

[0001] This utility model relates to the field of geological and soil exploration technology, and in particular to a geological and soil exploration strength testing device. Background Technology

[0002] In current geological and geotechnical investigation work, strength testing is a core step in obtaining key data on the mechanical properties of soil and rock. Traditional strength testing equipment for geological and geotechnical investigation generally has serious shortcomings. Most of them are designed only for soil and rock samples of specific shapes or sizes, and lack the ability to effectively clamp soil and rock samples of different specifications and shapes using multiple lines.

[0003] In practice, when faced with diverse soil and rock samples, such as irregularly shaped, circular, or rectangular ones, these devices struggle to ensure the soil and rock maintain a stable position and orientation during testing. For example, with irregularly shaped soil and rock, the inability to achieve uniform and stable clamping at multiple points makes it prone to lateral sliding, rotation, or localized uplift when pressure is applied. This not only interferes with the normal conduct of the test but also leads to significant deviations in the measured strength data, failing to accurately reflect the actual mechanical properties of the soil and rock, and severely impacting the accuracy and reliability of geological survey results. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a geological and soil exploration strength testing device, the specific technical solution of which is as follows:

[0005] A geological and soil exploration strength testing device includes a base, a testing component, and a clamping component. The testing component includes a pressure section and a pressure testing section. The pressure testing section is located on the top of the base and is coaxially arranged above the pressure testing section. The clamping component is located above the pressure testing section.

[0006] The clamping assembly includes a first V-shaped clamp, a second V-shaped clamp, a first moving part, and a second moving part. The large opening ends of the first V-shaped clamp and the second V-shaped clamp are arranged facing each other. The second V-shaped clamp is fixed on the base. The first moving part is used to drive the second V-shaped clamp to move closer to or away from the first V-shaped clamp. The large opening end of the first V-shaped clamp is provided with a flat clamping plate. The second moving part is used to drive the second moving part of the flat clamping plate to move closer to or away from the large opening end of the second V-shaped clamp, so as to achieve at least three-point contact clamping of the soil and rock.

[0007] The first movable part includes a side frame fixedly connected to the base, a slide is slidably connected between the two ends of the side wall of the side frame, a first nut block is connected to the side of the side frame away from the base, a first threaded rod is threadedly connected to the first nut block, one end of the first threaded rod is rotatably connected to the slide, and one side of the slide is fixedly connected to a first V-shaped clamp.

[0008] The second movable part includes a second nut block fixedly connected to the small end of the first V-shaped clamp, a second threaded rod threadedly connected to the second nut block, and one end of the second threaded rod fixedly connected to the flat clamp plate.

[0009] The pressure unit includes a mounting bracket fixedly connected to the base, a hydraulic cylinder is mounted on the bottom side of the mounting bracket, and a pressure plate is mounted on the output rod of the hydraulic cylinder.

[0010] The pressure testing unit includes a test plate mounted on the top of the base, a pressure sensor mounted on the top of the test plate, and a contact pad connected to the top of the pressure sensor.

[0011] The second V-shaped clamp has an opening that matches the first V-shaped clamp, so as to avoid affecting the normal movement of the first V-shaped clamp.

[0012] The beneficial effects of this invention are as follows: The geological and soil exploration strength testing device of this invention has many significant advantages. Through its innovative clamping component design, it can achieve efficient and stable multi-line clamping of geological and soil samples of different sizes and shapes, greatly improving the fixation effect and stability of soil samples during the test. Compared with traditional devices, it effectively reduces test errors caused by sample displacement, loosening, or improper clamping, thereby significantly improving the accuracy and reliability of geological and soil exploration strength tests. This enables geological engineers to obtain more realistic and accurate soil and rock strength data, providing strong technical support for project design and construction plan formulation in fields such as geological engineering construction and mineral exploration. It helps optimize engineering design, reduce engineering risks, improve engineering quality and economic benefits, and is of great significance to promoting the development of scientific research and engineering practice in the field of geology and geotechnical engineering. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the clamping component in this utility model under the clamping state of irregularly shaped rock and soil;

[0015] Figure 3 This is a schematic diagram of the clamping component in the present invention clamping a circular rock and soil mass.

[0016] Figure 4 This is a schematic diagram of the clamping component in the present invention clamping rectangular soil and rock.

[0017] Reference numerals: 1. Mounting bracket; 2. Hydraulic cylinder; 21. Pressure plate; 3. Base; 4. Test plate; 41. Pressure sensor; 42. Rubber gasket; 5. Clamping assembly; 51. Side frame; 52. First V-shaped clamp; 53. Second V-shaped clamp; 530. Through port; 54. First nut block; 55. Second nut block; 56. Second threaded rod; 561. Flat clamping plate; 57. First threaded rod; 58. Slide. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] Example

[0020] Please refer to Figures 1-4 The geological and soil exploration strength testing device of this application mainly consists of three parts: a base 3, a testing component, and a clamping component 5. These parts work closely together to achieve accurate testing of the strength of geological and soil materials. The base 3 serves as the supporting foundation for the entire device, providing a stable mounting platform for other components. Its design has sufficient strength and stability to withstand various forces generated during the test, ensuring that the device will not shake or shift during operation.

[0021] The testing assembly is further subdivided into a pressure section and a pressure testing section. The pressure testing section is precisely positioned on top of the base 3, and its main function is to sense and measure the pressure information borne by the soil and rock sample. The pressure section is coaxial and located directly above the pressure testing section, and is responsible for applying a predetermined pressure to the soil and rock sample during the test. The clamping assembly 5 is located above the pressure testing section and is a key component to ensure that the soil and rock sample is fixed in position during the test. Its unique design can adapt to soil and rock samples of various shapes and sizes, ensuring stable clamping under different test conditions.

[0022] Specifically, the clamping assembly 5 consists of a first V-shaped clamp, a second V-shaped clamp, a first moving part, and a second moving part. The large ends of the first and second V-shaped clamps face each other. This V-shaped structure design can well conform to the different shapes and contours of the soil and rock samples, increasing the contact area and friction with the soil and rock, thereby improving the clamping effect. The second V-shaped clamp is firmly fixed to the base 3, providing a stable support point for the entire clamping operation.

[0023] The first moving part mainly includes a side frame 51 fixedly connected to the base 3. A slide is installed between the two ends of the side wall of the side frame 51, which can slide smoothly. The sliding movement of the slide within the side frame 51 provides stable guidance for the movement of the first V-shaped clamp. A first nut block 54 is connected to the side of the side frame 51 away from the base 3, and a first threaded rod 57 is threadedly connected to the first nut block 54. One end of the first threaded rod 57 is rotatably connected to the slide. This connection means that when the first threaded rod 57 is rotated, due to the transmission action of the thread, the first threaded rod 57 can push the slide to slide linearly within the side frame 51, thereby causing the first V-shaped clamp fixedly connected to it to move closer to or away from the second V-shaped clamp, realizing the initial positioning and clamping adjustment of the soil and rock sample, and can adapt to the initial clamping requirements of soil and rock samples of different sizes.

[0024] The large end of the first V-shaped clamp is provided with a flat clamping plate 561, and the flat clamping plate 561 can be precisely adjusted in position through the second moving part. The second moving part consists of a second nut block 55 fixedly connected to the small end of the first V-shaped clamp and a second threaded rod 56 threadedly connected to the second nut block 55. One end of the second threaded rod 56 is fixedly connected to the flat clamping plate 561.

[0025] In actual operation, by rotating the second threaded rod 56, the planar clamp 561 can be precisely moved linearly relative to the first V-shaped clamp by utilizing the thread transmission principle. This allows for further fine-tuning of the clamping force and position of the soil and rock sample, ensuring that the soil and rock sample is stably clamped at at least three points during the test. This effectively prevents any form of displacement of the soil and rock sample when subjected to pressure, thus ensuring the accuracy of the test results.

[0026] Specifically, the pressure unit mainly consists of a mounting bracket 1 fixedly connected to the base 3, a hydraulic cylinder 2 mounted on the bottom side of the mounting bracket 1, and a pressure plate 21 mounted on the output rod of the hydraulic cylinder 2. During the test, the hydraulic cylinder 2 acts as a power source, starting operation according to a preset program or operator instructions. The output rod of the hydraulic cylinder 2 generates a downward linear motion, pushing the pressure plate 21 to apply force to the soil sample at a stable speed and pressure. The design shape and size of the pressure plate 21 are adapted to the bearing surface of the soil sample, ensuring that the pressure is uniformly transmitted to the soil sample, simulating the actual pressure conditions experienced by soil and rock in a geological environment, and providing reliable loading conditions for obtaining accurate strength data.

[0027] Specifically, the pressure testing unit includes a test plate 4 mounted on top of the base 3, a pressure sensor 41 mounted on top of the test plate 4, and a contact pad connected to the top of the pressure sensor 41. When the pressure plate 21 applies pressure to the soil sample, the pressure is transmitted sequentially through the soil sample and the contact pad to the pressure sensor 41. The pressure sensor 41 uses existing high-precision sensing technology, which can quickly and accurately convert the sensed pressure signal into an electrical signal and transmit it to the connected testing equipment or control system for data processing and recording. The contact pad is made of a material with good elasticity and wear resistance, which protects the pressure sensor 41 from direct impact and wear from the soil sample, and ensures that there is no significant loss or deviation in pressure during transmission, thus guaranteeing the accuracy of pressure measurement.

[0028] Specifically, the assembly process of this device is carried out according to the following steps to ensure that all components are installed correctly and that the device can operate normally. First, place the base 3 stably on a sturdy, level workbench and use a level or other tools to calibrate it, ensuring that the base 3 is level and avoiding any impact on the test results due to tilting of the base 3. Next, firmly fix the mounting bracket 1 to the base 3 with high-strength bolts, ensuring that the connection between the mounting bracket 1 and the base 3 is tight and stable, and can withstand the large forces generated in subsequent tests. On the bottom side of the mounting bracket 1, precisely install the hydraulic cylinder 2 according to the requirements of the equipment manual, ensuring that the installation position of the hydraulic cylinder 2 is accurate and that its output rod can move vertically downwards and smoothly. Securely install the pressure plate 21 on the output rod of the hydraulic cylinder 2, ensuring that the pressure plate 21 will not loosen or shift during movement.

[0029] For the pressure testing section, carefully install the test plate 4 at the predetermined position on top of the base 3, using tools such as locating pins for precise positioning. Then, install the pressure sensor 41 on the test plate 4, ensuring a tight connection and good electrical connection between the pressure sensor 41 and the test plate 4. Connect a contact pad to the top of the pressure sensor 41, ensuring the contact pad is installed flat and without wrinkles to ensure even pressure transmission.

[0030] The installation of clamping assembly 5 is equally crucial. First, the second V-shaped clamp is fixed to the base 3 by welding or bolting to ensure its position is fixed and stable. The side frame 51 with the slide is then installed on the base 3, ensuring the slide can slide freely within the side frame 51 without jamming. Next, the slide is securely connected to the first V-shaped clamp. Finally, the first nut block 54, the first threaded rod 57, the second nut block 55, the second threaded rod 56, and the flat clamping plate 561 are installed. During installation, care must be taken to ensure the tightening of each threaded connection is moderate, guaranteeing both a secure connection and flexible movement of each component. After assembly, the entire device is thoroughly tested to check the smooth movement of each component, the proper electrical connections, and the accurate measurement of the pressure sensor 41, ensuring the device is in optimal working condition.

[0031] The second V-shaped clamp 53 has an opening 530 that is compatible with the first V-shaped clamp 52, so as to avoid affecting the normal movement of the first V-shaped clamp 52.

[0032] Operating Procedure for Geotechnical Sample Testing: When conducting geotechnical sample testing, the clamping assembly 5 must first be adjusted according to the shape and size of the sample. The operator carefully observes the external characteristics of the sample. For irregularly shaped samples, the size range is roughly estimated first. Then, the first threaded rod 57 is rotated, causing the first moving part to slowly move the first V-shaped clamp, allowing the sample to be initially placed between the first and second V-shaped clamps, achieving initial positioning and clamping. During this process, it is important to observe the contact between the sample and the clamps to ensure the sample remains in a relatively stable position within the clamps.

[0033] Next, based on the specific shape and clamping condition of the soil and rock sample, rotate the second threaded rod 56 to drive the flat clamping plate 561 to move precisely using the second moving part. During the adjustment process, continuously observe the clamping condition of the soil and rock sample to ensure that the flat clamping plate 561 can fit tightly against the soil and rock sample, achieving stable contact clamping at least three points, and that the soil and rock sample does not exhibit significant deformation or damage after clamping.

[0034] After clamping, the hydraulic cylinder 2 control system is activated, and the predetermined pressure loading parameters, such as loading speed and maximum loading pressure, are set. The hydraulic cylinder 2 begins operation, its output rod pushing the pressure plate 21 downwards at a uniform speed, applying gradually increasing pressure to the soil sample. During the pressure application process, the operator must closely monitor the device's operation to ensure a smooth and normal pressure application. The pressure is transmitted through the soil sample to the pressure sensor 41 on the test plate 4. The pressure sensor 41 collects pressure data in real time and transmits the data to a connected computer or data recorder for storage and analysis. According to the test requirements, pressure is continuously applied until the predetermined test conditions are reached or the soil sample fails. At this point, the final pressure data and the failure mode of the soil sample are recorded, completing one geological and soil exploration strength test.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A geological and geotechnical investigation strength testing device, characterized in that, It includes a base (3), a test assembly and a clamping assembly (5). The test assembly includes a pressure part and a pressure testing part. The pressure testing part is disposed on the top of the base (3). The pressure part is coaxially disposed above the pressure testing part. The clamping assembly (5) is located above the pressure testing part. The clamping assembly (5) includes a first V-shaped clamp (52), a second V-shaped clamp (53), a first moving part, and a second moving part. The large opening end of the first V-shaped clamp (52) and the large opening end of the second V-shaped clamp (53) are arranged facing each other. The second V-shaped clamp (53) is fixed on the base (3). The first moving part is used to drive the second V-shaped clamp (53) to move closer to or away from the first V-shaped clamp (52). The large opening end of the first V-shaped clamp (52) is provided with a flat clamping plate (561). The second moving part is used to drive the second moving part of the flat clamping plate (561) to move closer to or away from the large opening end of the second V-shaped clamp (53).

2. The geological and soil investigation strength testing device according to claim 1, characterized in that: The first movable part includes a side frame (51) fixedly connected to the base (3). A slide is slidably connected between the two ends of the side wall of the side frame (51). A first nut block (54) is connected to the side of the side frame (51) away from the base (3). A first threaded rod (57) is threadedly connected to the first nut block (54). One end of the first threaded rod (57) is rotatably connected to the slide. One side of the slide is fixedly connected to a first V-shaped clamp (52).

3. The geological and soil exploration strength testing device according to claim 2, characterized in that: The second movable part includes a second nut block (55) fixedly connected to the small end of the first V-shaped clamp (52), and a second threaded rod (56) is threadedly connected to the second nut block (55). One end of the second threaded rod (56) is fixedly connected to the flat clamp (561).

4. The geological and soil investigation strength testing device according to claim 3, characterized in that: The pressure unit includes a mounting bracket (1) fixedly connected to the base (3), a hydraulic cylinder (2) is mounted on the bottom side of the mounting bracket (1), and a pressure plate (21) is mounted on the output rod of the hydraulic cylinder (2).

5. The geological and soil investigation strength testing device according to claim 4, characterized in that: The pressure testing unit includes a test plate (4) mounted on the top of the base (3), a pressure sensor (41) is mounted on the top of the test plate (4), and a contact pad is connected to the top of the pressure sensor (41).

6. The geological and soil investigation strength testing device according to claim 1, characterized in that: The second V-shaped clamp (53) has an opening (530) that is compatible with the first V-shaped clamp (52) to avoid affecting the normal movement of the first V-shaped clamp (52).

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