An optimized civil engineering geotechnical disintegration test device

Abstract

This utility model discloses an optimized soil and rock disintegration test device for civil engineering. The inner water tank (5) is located above the outer water tank (2) and extends into the outer water tank (2). A lifting mechanism is installed on the front side of the long side of the second L-shaped plate (14). Two electric heaters (6) are fixedly connected to the rear side of the inner water tank (2). A first motor (7) is fixedly connected to each side of the inner water tank (5) at the top of the outer water tank (2). A propeller (8) is fixedly connected to the end of the output shaft of the first motor (7). The propeller (8) is located inside the outer water tank (2) and above the electric heaters (6). By setting an inner water tank in the outer water tank, the water in the outer water tank heats the water in the inner water tank through heat transfer. This makes the water temperature in the inner water tank more stable and avoids the problem of cold and hot convection affecting soil sample disintegration, thus making the soil sample disintegration test data more accurate.

Description

Technical Field

[0001] This utility model relates to the field of civil engineering technology, and in particular to an optimized test device for soil and rock disintegration in civil engineering. Background Technology

[0002] The soil and rock disintegration test is an experimental method for evaluating the ability of soil or rock to resist structural failure under water immersion conditions, and is mainly used for engineering stability analysis.

[0003] A search revealed that patent document CN215297383U discloses a soil and rock disintegration test device, including a sample basket containing a soil and rock sample. The upper end of the sample basket is connected to the measuring end of a force gauge, and the fixed end of the force gauge is connected to a lifting mechanism. The lifting mechanism is vertically positioned to drive the force gauge and the sample basket to move vertically up and down. The test container is a hollow box structure, positioned directly below the sample basket. The test container contains a test solution, and heat-conducting pipes are evenly arranged within it. The inlet end of the heat-conducting pipes is connected to the outlet of a constant temperature bath, and the outlet end is connected to the return outlet of the constant temperature bath.

[0004] In order to maintain a constant temperature in the water in the thermostatic bath, the aforementioned public documents use structures such as heat pipes to heat the liquid in the thermostatic bath. However, this method has some shortcomings in actual use. For example, there will be a certain temperature difference between the solution near and far from the heat pipe in the thermostatic bath. This not only affects the temperature stability of the solution in the thermostatic bath, but also easily causes hot and cold convection, which can affect the natural disintegration of the soil sample, resulting in large errors in the final data.

[0005] To address the aforementioned shortcomings, it is essential to develop a civil engineering soil and rock disintegration test device with high accuracy in soil sample disintegration test data. Summary of the Invention

[0006] The purpose of this invention is to address the technical challenges of large temperature differences in the solution within the constant temperature bath of existing soil and rock disintegration test devices, which can lead to significant errors in the final data due to thermal convection. The invention provides an optimized soil and rock disintegration test device for civil engineering. By installing an inner water tank within an outer water tank, the water in the outer tank heats the water in the inner tank through heat transfer. This results in a more stable water temperature in the inner tank and eliminates the problem of thermal convection affecting soil sample disintegration, thus improving the accuracy of soil sample disintegration test data.

[0007] To achieve the above-mentioned objectives of this utility model, the optimized civil engineering soil and rock disintegration test device of this utility model adopts the following technical solution:

[0008] This utility model discloses an optimized civil engineering soil and rock disintegration test device, comprising a base and an outer water tank mounted on the base. It further comprises a first L-shaped plate and a second L-shaped plate. The short side of the first L-shaped plate is connected to the rear side of the outer water tank, and the long side of the first L-shaped plate is positioned above and parallel to the outer water tank. An inner water tank is fixedly fixed through the middle of the long side of the first L-shaped plate, located above the outer water tank and extending into its interior. A tension gauge is installed above the inner water tank, and a traction rope is fixedly connected to the bottom hook of the tension gauge. A net basket containing a soil sample is fixedly connected to the bottom of the traction rope. The lower inner side of the long side of the second L-shaped plate is connected to the rear side of the short side of the first L-shaped plate, and a lifting mechanism is installed on the front side of the long side of the second L-shaped plate. Two electric heaters are fixedly connected to the rear side of the interior of the outer water tank. A first motor is fixedly connected to each side of the inner water tank at the top of the outer water tank, and a propeller is fixedly connected to the end of the output shaft of each first motor. The propeller is located inside the outer water tank and above the electric heaters.

[0009] Preferably, a temperature sensor is fixedly connected to the bottom of the inner water tank, and the inner water tank is located between two electric heaters.

[0010] Preferably, the outer water tank has an opening at the center of its top, and the inner water tank passes through the opening, which is located between the two first motors.

[0011] Preferably, the lifting mechanism includes a second motor, which is fixedly connected to the top of the short side of the second L-shaped plate. The output shaft of the second motor is fixedly connected to a threaded rod via a coupling. A support plate is fixedly connected to the front side of the long side of the second L-shaped plate. The bottom of the threaded rod and the top of the support plate are movably connected via a bearing. A connecting plate is connected to the front of the threaded rod. A first sleeve is fixedly connected to the rear side of the connecting plate. The first sleeve is fitted onto the outer end of the threaded rod, and the threaded rod and the first sleeve are threadedly connected. A tension gauge is located in front of the connecting plate, and a connecting arm is fixedly connected between the tension gauge and the connecting plate.

[0012] Preferably, a guide rod is fixedly connected to each side of the threaded rod at the top of the pallet, the top of the guide rod is fixedly connected to the inner side of the short side of the second L-shaped plate, and two second sleeves are fixedly connected to the rear side of the connecting plate. The two second sleeves are located on both sides of the first sleeve, the second sleeves are sleeved on the outer end of the guide rod, and the guide rod and the second sleeve are slidably connected.

[0013] The optimized soil and rock disintegration test device for civil engineering of this utility model, after adopting the above technical solution, has the following beneficial effects:

[0014] (1) By setting up an inner water tank in the outer water tank, the water in the outer water tank can be heated by heat transfer to the water in the inner water tank, which can make the water temperature in the inner water tank more stable and will not cause the problem of cold and hot convection affecting the soil sample disintegration, thus making the soil sample disintegration test data more accurate.

[0015] (2) When the water in the outer water tank is heated by the electric heater, the water in the outer water tank is stirred by the propeller so that the water near and far from the electric heater can be fully heated and there will be no problem of uneven heating. At this time, the water in the inner water tank is heated by the constant temperature water in the outer water tank, which can make the water temperature in the inner water tank more stable. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an optimized civil engineering rock and soil disintegration test device according to the present invention.

[0017] Figure 2 This is a front sectional view of the interior of the external water tank of this utility model.

[0018] Figure 3 This is a schematic diagram of the external water tank structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the first partial structure of the lifting mechanism of this utility model.

[0020] Figure 5 This is a schematic diagram of the second partial structure of the lifting mechanism of this utility model.

[0021] The attached diagram is labeled as follows: 1-base; 2-outer water tank; 3-opening; 4-first L-shaped plate; 5-inner water tank; 6-electric heater; 7-first motor; 8-propeller; 9-temperature sensor; 10-net basket; 11-soil sample; 12-traction rope; 13-tension gauge; 14-second L-shaped plate; 15-support plate; 16-second motor; 17-threaded rod; 18-guide rod; 19-connecting plate; 20-first sleeve; 21-second sleeve; 22-connecting arm. Detailed Implementation

[0022] To further describe this utility model, an optimized soil and rock disintegration test device for civil engineering according to the present invention will be described in more detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 This utility model discloses an optimized soil and rock disintegration test device for civil engineering, comprising a base 1, an outer water tank 2 mounted on the base 1, a first L-shaped plate 4, and a second L-shaped plate 14; the short side of the first L-shaped plate 4 is connected to the rear side of the outer water tank 2, the long side of the first L-shaped plate 4 is located above the outer water tank 2, and an inner water tank 5 is fixedly connected through the middle of the long side of the first L-shaped plate 4, the inner water tank 5 is located above the outer water tank 2 and extends into the outer water tank 2, a tension gauge 13 is installed above the inner water tank 5, and a traction rope 12 is fixedly connected to the bottom hook of the tension gauge 13. The bottom of the guide rope 12 is fixedly connected to a net basket 10 containing a soil sample 11; the lower inner side of the long side of the second L-shaped plate 14 is connected to the rear side of the short side of the first L-shaped plate 4, and a lifting mechanism is installed on the front side of the long side of the second L-shaped plate 14; two electric heaters 6 are fixedly connected to the rear side of the interior of the outer water tank 2, and a first motor 7 is fixedly connected to each side of the inner water tank 5 at the top of the outer water tank 2. A propeller 8 is fixedly connected to the end of the output shaft of the first motor 7, and the propeller 8 is located inside the outer water tank 2 and above the electric heaters 6.

[0024] A temperature sensor 9 is fixedly connected to the bottom of the inner water tank 5, which is located between two electric heaters 6. The temperature sensor 9 can detect the water temperature in the outer water tank 2 in real time. When the water temperature reaches the set temperature, the electric heaters 6 can reduce their power or even stop operating, so that the water in the outer water tank 2 can maintain a constant temperature.

[0025] An opening 3 is provided at the center of the top of the outer water tank 2, and the inner water tank 5 passes through the opening 3. The opening 3 is located between the two first motors 7. There is a certain distance between the inner water tank 5 and the inner wall of the opening 3, and it does not come into contact with the outer water tank 2, thereby avoiding the impact of vibration caused by the operation of the first motors 7 on the inner water tank 5, and thus avoiding the impact on the natural disintegration of the soil sample 11.

[0026] The lifting mechanism includes a second motor 16, which is fixedly connected to the top of the short side of the second L-shaped plate 14. The output shaft of the second motor 16 is fixedly connected to a threaded rod 17 via a coupling. A support plate 15 is fixedly connected to the front side of the long side of the second L-shaped plate 14. The bottom of the threaded rod 17 and the top of the support plate 15 are movably connected via bearings. A connecting plate 19 is connected to the front of the threaded rod 17, and a first sleeve 20 is fixedly connected to the rear side of the connecting plate 19. The first sleeve 20 is fitted onto the outer end of the threaded rod 17, and the threaded rod 17 and the first sleeve 20 are threadedly connected. A tension gauge 13 is located in front of the connecting plate 19, and a connecting arm 22 is fixedly connected between the tension gauge 13 and the connecting plate 19. The lifting mechanism can drive the tension gauge 13 to move up and down, while the soil sample 11 is placed on the basket 10 and suspended below the tension gauge 13 by a traction rope 12, thereby controlling the soil sample 11 to move down into the inner water tank 5 for disintegration testing.

[0027] A guide rod 18 is fixedly connected to each side of the threaded rod 17 at the top of the support plate 15. The top of the guide rod 18 is fixedly connected to the inner side of the short side of the second L-shaped plate 14. Two second sleeves 21 are fixedly connected to the rear side of the connecting plate 19. The two second sleeves 21 are located on both sides of the first sleeve 20. The second sleeves 21 are sleeved on the outer end of the guide rod 18, and the guide rod 18 and the second sleeve 21 are slidably connected. When the connecting plate 19 moves up and down along the threaded rod 17 through the first sleeve 20, the guide rods 18 and the second sleeves 21 prevent the connecting plate 19 from rotating with the threaded rod 17, allowing it to only move up and down, thus playing a certain guiding and limiting role.

[0028] The working principle of this optimized civil engineering soil and rock disintegration test device is as follows:

[0029] When immersing soil sample 11 into the constant-temperature water inside the inner water tank 5 via the lifting mechanism, the water inside the inner water tank 5 needs to be heated to the required temperature and maintained at a constant temperature first. This can be achieved by first heating the water in the outer water tank 2 using an electric heater 6. During this process, the first motor 7 drives the propeller 8 to rotate and stir the water in the outer water tank 2. This prevents the water in the outer water tank 2 from being heated at different temperatures due to differences in temperature between the water near and away from the electric heater 6 at the same time, thus avoiding instability in the constant-temperature heating of the water in the inner water tank 5. Meanwhile, the temperature sensor 9 monitors the water temperature in the outer water tank 2 in real time. Heat is then transferred from the constant-temperature water in the outer water tank 2 to a constant temperature. The water in the inner water tank 5 is also heated to a constant temperature, and there will be no flow of water in the inner water tank 5 throughout the process, so as not to affect the natural disintegration of the soil sample 11. After the water temperature in the inner water tank 5 stabilizes, the second motor 16 is started. The second motor 16 drives the threaded rod 17 to rotate, so that the first sleeve 20, the connecting plate 19 and the connecting arm 22 can move down steadily and uniformly. During this period, the tension gauge 13 will also move down synchronously with the connecting arm 22. The net basket 10 suspended below the tension gauge 13 by the traction rope 12 and the soil sample 11 inside the net basket 10 also move down synchronously until the net basket 10 is completely immersed in the constant temperature water inside the inner water tank 5. Then the disintegration test can be observed.

[0030] It should be noted that in this document, terms such as "upper," "middle," and "middle-lower" are used for ease of description, and "middle" does not necessarily mean the very center; relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. "Long side" and "short side" are also for descriptive convenience and do not necessarily represent their length. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An optimized civil engineering geotechnical disintegration test device, comprising a base (1), an outer water tank (2) mounted on the base (1), characterized in that: It also includes a first L-shaped plate (4) and a second L-shaped plate (14); the short side of the first L-shaped plate (4) is connected to the rear side of the outer water tank (2), the long side of the first L-shaped plate (4) is located above the outer water tank (2), and an inner water tank (5) is fixedly installed through the middle of the long side of the first L-shaped plate (4). The inner water tank (5) is located above the outer water tank (2) and extends into the interior of the outer water tank (2). A tension gauge (13) is installed above the inner water tank (5), and a traction rope (12) is fixedly connected to the bottom hook of the tension gauge (13). The bottom of the traction rope (12) is fixedly connected to a soil sample (1) inside. 1) The net basket (10); the lower inner side of the long side of the second L-shaped plate (14) is connected to the rear side of the short side of the first L-shaped plate (4), and a lifting mechanism is installed on the front side of the long side of the second L-shaped plate (14); two electric heaters (6) are fixedly connected to the rear side of the inner water tank (2), and a first motor (7) is fixedly connected to both sides of the inner water tank (5) at the top of the outer water tank (2), and a propeller (8) is fixedly connected to the end of the output shaft of the first motor (7). The propeller (8) is located inside the outer water tank (2) and above the electric heater (6).

2. An optimized civil engineering geotechnical disintegration test device according to claim 1, characterized in that: A temperature sensor (9) is fixedly connected to the bottom of the inner water tank (5), and the inner water tank (5) is located between two electric heaters (6).

3. An optimized civil engineering geotechnical disintegration test device as claimed in claim 1, wherein: An opening (3) is provided at the center of the top of the outer water tank (2), and the inner water tank (5) passes through the opening (3). The opening (3) is located between the two first motors (7).

4. An optimized civil engineering geotechnical disintegration test device as claimed in claim 1, wherein: The lifting mechanism includes a second motor (16), which is fixedly connected to the top of the short side of the second L-shaped plate (14). The output shaft of the second motor (16) is fixedly connected to a threaded rod (17) via a coupling. A support plate (15) is fixedly connected to the front side of the long side of the second L-shaped plate (14). The bottom of the threaded rod (17) and the top of the support plate (15) are movably connected via bearings. A connecting plate (19) is connected to the front of the threaded rod (17). A first sleeve (20) is fixedly connected to the rear side of the connecting plate (19). The first sleeve (20) is sleeved on the outer end of the threaded rod (17), and the threaded rod (17) and the first sleeve (20) are threadedly connected. The tension gauge (13) is located in front of the connecting plate (19), and a connecting arm (22) is fixedly connected between the tension gauge (13) and the connecting plate (19).

5. An optimized civil engineering geotechnical disintegration test device according to claim 4, characterized in that: A guide rod (18) is fixedly connected to each side of the threaded rod (17) at the top of the pallet (15). The top of the guide rod (18) is fixedly connected to the inner side of the short side of the second L-shaped plate (14). Two second sleeves (21) are fixedly connected to the rear side of the connecting plate (19). The two second sleeves (21) are located on both sides of the first sleeve (20). The second sleeves (21) are sleeved on the outer end of the guide rod (18), and the guide rod (18) and the second sleeve (21) are slidably connected.

6. An optimized civil engineering geotechnical disintegration test device as claimed in claim 2, wherein: An opening (3) is provided at the center of the top of the outer water tank (2), and the inner water tank (5) passes through the opening (3). The opening (3) is located between the two first motors (7). The lifting mechanism includes a second motor (16), which is fixedly connected to the top of the short side of the second L-shaped plate (14). The output shaft of the second motor (16) is fixedly connected to a threaded rod (17) via a coupling. A support plate (15) is fixedly connected to the front side of the long side of the second L-shaped plate (14). The threaded rod (17) is fixedly connected to the support plate (15). 7) The bottom and the top of the support plate (15) are connected by bearings. A connecting plate (19) is connected to the front of the threaded rod (17). A first sleeve (20) is fixedly connected to the rear side of the connecting plate (19). The first sleeve (20) is sleeved on the outer end of the threaded rod (17), and the threaded rod (17) and the first sleeve (20) are threadedly connected. The tension gauge (13) is located in front of the connecting plate (19). A connecting arm (22) is fixedly connected between the tension gauge (13) and the connecting plate (19).

7. An optimized civil engineering geotechnical disintegration test device according to claim 6, characterized in that: A guide rod (18) is fixedly connected to each side of the threaded rod (17) at the top of the pallet (15). The top of the guide rod (18) is fixedly connected to the inner side of the short side of the second L-shaped plate (14). Two second sleeves (21) are fixedly connected to the rear side of the connecting plate (19). The two second sleeves (21) are located on both sides of the first sleeve (20). The second sleeves (21) are sleeved on the outer end of the guide rod (18), and the guide rod (18) and the second sleeve (21) are slidably connected.

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