Flow-state solidified soil multi-index rapid testing and analyzing device considering environment temperature

Abstract

The utility model relates to a flow-state solidified soil multi-index rapid testing and analyzing device considering environment temperature. The device comprises a visual container, a hinged support, a movable vertical rod, a fixed vertical rod, a weight sensing base, a temperature control system, a controller, an environment control box, an external test system and a vertical rod motor. The device disclosed by the utility model has the advantages that repeated sampling is not needed, the test analysis of the weight, fluidity, volume expansion and shrinkage rate, strength, freeze-thaw stability and dry shrinkage cracking indexes of the fluid-state solidified soil can be realized at one time, the device is rapid and convenient, the mix proportion design is effectively guided, and a support is provided for the application of the new material, namely the fluid-state solidified soil; the fluidity of the flow-state solidified soil is tested through the standardized inclined conical container, repeated material taking is not needed, and meanwhile, the development change of the fluidity of the flow-state solidified soil along with time can be obtained; the environment temperature control system can fully consider the environment temperature, can truly simulate the temperature of the environment where the flow-state solidified soil is located, and realizes quick measurement of the freeze-thaw stability by changing the environment temperature.

Description

Technical Field

[0001] This utility model belongs to the field of new materials technology for airport and road engineering construction, and specifically relates to a rapid testing and analysis device for multiple indicators of fluidized solidified soil that takes into account ambient temperature. Background Technology

[0002] During the construction of the airport terminal apron, the underground aviation fuel pipelines, water supply and drainage pipelines, and culverts are interspersed, which brings great difficulties to the compaction of the backfill soil in the pipe trenches. It is difficult to achieve the required compaction degree by using undisturbed soil and lime-soil for backfilling. Therefore, low-grade commercial concrete is often used for backfilling in current projects. As a result, the construction cost of the apron pipe trench project is greatly increased, the economic efficiency is reduced, and carbon emissions are increased. Therefore, it does not meet the overall requirements of green and high-quality development of civil aviation.

[0003] With the increasing maturity of fluidized bed solidification soil trench construction technology, there have been some cases of its application in civil aviation airports. However, due to limitations in construction methods and machinery, it remains difficult to use fluidized bed solidification soil for backfilling in existing apron renovation areas. The prerequisite for fluidized bed solidification soil preparation is mix design. Since different undisturbed soils have different shapes, it is crucial to design a convenient and integrated indoor testing and analysis device. This device can quickly perform various performance analyses on laboratory-prepared fluidized bed solidification soil to rapidly obtain a reasonable mix design.

[0004] Although some testing schemes and devices for fluidized solidified soils exist, these solutions lack industrial applicability and integration. They cannot consider the environmental conditions of the fluidized solidified soil, nor can they perform integrated testing of its unit weight, fluidity, volumetric shrinkage rate, strength, freeze-thaw stability, and drying shrinkage cracking index. Furthermore, they cannot comprehensively account for changes in material properties over time. Therefore, achieving a comprehensive testing and analysis of the unit weight, fluidity, volumetric shrinkage rate, strength, freeze-thaw stability, and drying shrinkage cracking index of fluidized solidified soils, taking into account different environmental variables, has become an urgent problem to be solved in the application of fluidized solidified soils. Summary of the Invention

[0005] To address the aforementioned problems, the purpose of this invention is to provide a rapid testing and analysis device for multiple indicators of fluidized solidified soil that takes into account ambient temperature.

[0006] To achieve the above objectives, the present invention provides a rapid multi-index testing and analysis device for fluidized solidified soil considering ambient temperature, comprising a visualization container, a hinged support, a movable upright, a fixed upright, a weight-sensing base, a temperature control system, a controller, an environmental control box, an external testing system, and an upright motor. The environmental control box has a top cover. The weight-sensing base integrates a fluidized solidified soil weight display system and a timing control system, and is located on the bottom surface inside the environmental control box. The fixed uprights are hollow tubular structures, with the lower ends of four fixed uprights symmetrically fixed to the top surface of the weight-sensing base. The lower part of each movable upright is inserted into the interior of a fixed upright, and its lower end is connected to the output shaft of the upright motor located inside the weight-sensing base, while its upper end is connected to a hinged support. The visualization container is a conical structure made of plexiglass, with volume markings on the conical surface, and is used to hold the prepared fluidized solidified soil. The solidified soil is mounted on four hinged supports. The external testing system includes a strength test probe, a drive motor, a penetration strength analysis system, and a vision measurement system. The strength test probe is vertically positioned to move up and down, penetrating the middle of the top cover and extending into the interior of the environmental control box, positioned above the visualization container. The drive motor is located on one side of the top cover, with its output connected to the strength test probe to drive its up and down movement. The vision measurement system is located on the inner surface of the top cover, positioned above the visualization container. The penetration strength analysis system and the environmental temperature control system are located on the other side of the top cover of the environmental control box, and the penetration strength analysis system is electrically connected to the strength test probe. The controller is located on the side of the environmental control box and is electrically connected to the pole motor, the fluidized solidified soil weight display system, the timing control system, the drive motor, the penetration strength analysis system, the temperature control system, and the vision measurement system.

[0007] The movable upright includes a main pole, a hinge ring, an outer limiting plate, and an inner limiting plate. The hinge ring is a concentric metal ring connected to the upper end of the main pole and used to connect to the hinge support. The outer limiting plate and the inner limiting plate each have a central hole at their center, which fits onto the upper and lower parts of the main pole. The outer limiting plate is located outside the upper end of the fixed upright, and the inner limiting plate is located inside the fixed upright, used to limit the upper and lower extreme positions of the main pole. At the same time, the upper end of the fixed upright has an inner edge to prevent the inner limiting plate from dislodging from the fixed upright.

[0008] The environmental control box is made of multi-layer hollow organic glass material and filled with inert gas, which serves the functions of visibility and heat preservation.

[0009] The rapid multi-index testing and analysis device for fluidized solidified soil that takes into account ambient temperature provided by this utility model has the following advantages:

[0010] 1. No need for multiple sampling, it can achieve the testing and analysis of unit weight, fluidity, volumetric expansion and contraction rate, strength, freeze-thaw stability and drying shrinkage cracking index of fluidized solidified soil in one go. It is fast and convenient, effectively guides mix design, and provides support for the application of fluidized solidified soil as a new material.

[0011] 2. The fluidity of solidified soil can be tested using a standardized inclined conical container without the need for repeated sampling, and the changes in the fluidity of solidified soil over time can be obtained.

[0012] 3. The ambient temperature control system can fully consider the ambient temperature and can realistically simulate the ambient temperature of the fluidized solidified soil. By changing the ambient temperature, it can achieve rapid measurement of freeze-thaw stability.

[0013] 4. The introduction of a timing control system enables real-time measurement of the changes in different evaluation indicators over time, overcoming the shortcomings of traditional methods that can only achieve final state testing.

[0014] 5. The visualization camera uses artificial intelligence technology to obtain the length and width of cracks in fluidized solidified soil, eliminating the need for manual processing and significantly improving accuracy and efficiency compared to traditional methods. Attached Figure Description

[0015] Figure 1 Elevation view of the rapid testing and analysis device for multiple indicators of fluidized solidified soil that takes into account ambient temperature, provided by this utility model.

[0016] Figure 2 Top view of the rapid testing and analysis device for multiple indicators of fluidized solidified soil that takes into account ambient temperature, provided by this utility model.

[0017] Figure 3 Cross-sectional view of the movable and fixed uprights in the rapid testing and analysis device for multiple indicators of fluidized solidified soil that takes into account ambient temperature, provided by this utility model. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings.

[0019] like Figures 1 to 3As shown, the multi-index rapid testing and analysis device for fluidized solidified soil considering ambient temperature provided by this utility model includes a visualization container 2, a hinge support 3, a movable upright 4, a fixed upright 5, a weight sensing base 6, a temperature control system 13, a controller 14, an environmental control box 15, an external testing system 19, and an upright motor. The environmental control box 15 has a top cover. The weight sensing base 6 integrates a fluidized solidified soil weight display system 7 and a timing control system 8, and is located on the bottom surface inside the environmental control box 15. The fixed upright 5 is a hollow tubular structure, with the lower ends of four fixed uprights symmetrically fixed to the top surface of the weight sensing base 6. The lower part of each movable upright 4 is inserted into the interior of a fixed upright 5, and its lower end is connected to the output shaft of the upright motor located inside the weight sensing base 6, while its upper end is connected to a hinge support 3. The visualization container 2 is a conical structure made of plexiglass, with volume markings 9 on the conical surface. It is used to hold the prepared fluidized solidified soil 1 and is located on the four hinge supports 3. The external testing system 19 includes a strength test probe 10, a drive motor 11, a penetration strength analysis system 12, and a vision measurement system 20. The strength test probe 10 is vertically positioned so as to be able to move up and down. Its lower part penetrates the middle of the top cover and extends into the interior of the environmental control box 15, and is located above the visualization container 2. The drive motor 11 is located on one side of the top cover, and its output end is connected to the strength test probe 10 to drive the strength test probe 10 to move up and down. The vision measurement system 20 is located on the inner surface of the top cover and is located above the visualization container 2. The penetration strength analysis system 12 and the environmental temperature control system 13 are located on the other side of the top cover of the environmental control box 15, and the penetration strength analysis system 12 is electrically connected to the strength test probe 10. The controller 14 is located on the side of the environmental control box 15 and is electrically connected to the pole motor, the fluidized solidified soil weight display system 7, the timing control system 8, the drive motor 11, the penetration strength analysis system 12, the temperature control system 13, and the vision measurement system 20, respectively.

[0020] The movable upright 4 includes a main rod 21, a hinge ring 18, an outer limiting plate 16, and an inner limiting plate 17. The hinge ring 18 is a concentric metal ring connected to the upper end of the main rod 21 and used to connect the hinge support 3. The outer limiting plate 16 and the inner limiting plate 17 respectively form a central hole at the center of the upper and lower parts of the main rod 21. The outer limiting plate 16 is located outside the upper end of the fixed upright 5, and the inner limiting plate 17 is located inside the fixed upright 5. It is used to limit the upper and lower limit positions of the main rod 21. At the same time, the upper end of the fixed upright 5 is provided with an inner edge to prevent the inner limiting plate 17 from falling out of the fixed upright 5.

[0021] The environmental control box 15 is made of multi-layer hollow organic glass material and filled with inert gas, which serves the functions of visibility and heat preservation.

[0022] Taking the density, fluidity, volumetric swelling and shrinkage rate, strength, freeze-thaw stability, and drying shrinkage cracking index tests of a certain mix proportion of fluidized solidified soil 1 as an example, the usage method of the multi-index rapid testing and analysis device for fluidized solidified soil considering ambient temperature provided by this utility model is explained. The specific implementation steps are as follows:

[0023] (1) The staff slowly pours the prepared fluidized solidified soil 1 to be tested into the interior of the visualization container 2, reads the volume of the fluidized solidified soil 1 through the volume scale 9, reads the weight of the fluidized solidified soil 1 through the weight display system 7, and calculates the density of the fluidized solidified soil 1 by the controller 14.

[0024] (2) Seal the top cover of the environmental control box 15 and inject inert gas into the environmental control box 15. Under the control of the controller 14, use the temperature control system 13 to set the working environment temperature of the fluidized solidified soil 1 in the environmental control box 15.

[0025] (3) Turn on the timing control system 8, and then use two adjacent pole motors to move the two adjacent movable poles 4 upward to the predetermined position, so that the visualization container 2 is tilted. Then turn off the pole motors and let the tilted side of the visualization container 2 slowly return to normal. At the same time, the timing control system 8 starts timing. After the liquid surface of the fluidized solidified soil 1 in the visualization container 2 stabilizes, read the liquid surface position and stabilization time of the fluidized solidified soil 1. The controller 14 uses the stabilization time to calculate the fluidity of the fluidized solidified soil 1.

[0026] (4) At certain time intervals, turn on the timing control system 8 and repeat step (3). In this way, the flowability change curve with time can be obtained according to the flowability at different times, so as to test whether the configured fluid solidified soil 1 meets the usage requirements.

[0027] (5) When it is necessary to test the volume change of the fluidized solidified soil 1, under the set working environment temperature, the volume scale 9 is read at intervals, the volume expansion and contraction rate of the fluidized solidified soil 1 is calculated by the controller 14, and the density change of the fluidized solidified soil 1 is analyzed by reading the value of the weight display system 7 in real time.

[0028] (6) When it is necessary to test the strength index of the fluidized solidified soil 1, first turn on the drive motor 11, drive the strength test probe 10 to move down at a constant speed and insert it into the fluidized solidified soil 1 in the visualization container 2, use the strength test probe 10 to detect the penetration resistance and display it in real time through the penetration strength analysis system 12, and use the controller 14 to calculate the solidification strength and elastic modulus of the fluidized solidified soil 1 using the penetration resistance.

[0029] (7) When it is necessary to analyze the effect of freeze-thaw cycles on the strength of fluidized solidified soil 1, the working environment temperature is changed by temperature control system 13 so that fluidized solidified soil 1 undergoes freeze-thaw cycles. After the predetermined number of freeze-thaw cycles is reached, step (6) is repeated to obtain the strength of fluidized solidified soil 1 after freeze-thaw.

[0030] (8) When it is necessary to analyze the drying shrinkage crack index, firstly, the drying temperature is set through the temperature control system 13, and then the visual measurement system 20 is used to analyze the drying process of the fluidized solidified soil 1 to determine whether the fluidized solidified soil 1 is cracked, the crack length, and the crack width, so as to obtain the drying shrinkage crack index.

[0031] (9) If any of the above indicators does not meet the requirements, change the mix ratio to prepare the fluidized solidified soil 1 that meets the engineering requirements, and repeat steps (1)-(8) until the requirements are met.

Claims

1. A kind of flow state solidified soil multi-index rapid test analysis device considering ambient temperature, it is characterized by: The device for quick test and analysis of flow state solidified soil multi-index considering environmental temperature includes a visual container (2), a hinged support (3), a movable vertical rod (4), a fixed vertical rod (5), a weight sensing base (6), a temperature control system (13), a controller (14), an environmental control box (15), an external test system (19) and a vertical rod motor; wherein the upper end of the environmental control box (15) is provided with a top cover; the weight sensing base (6) is internally integrated with a flow state solidified soil weight display system (7) and a timing control system (8), which are arranged on the inner bottom surface of the environmental control box (15); the fixed vertical rod (5) is a hollow tubular structure, and the lower ends of the four fixed vertical rods (5) are symmetrically fixed on the top surface of the weight sensing base (6); the lower part of each movable vertical rod (4) is inserted into one of the fixed vertical rods (5), and the lower end is connected with the output shaft of the vertical rod motor arranged in the weight sensing base (6), and the upper end is connected with a hinged support (3); the visual container (2) is a conical structure made of organic glass, and the conical surface is marked with a volume scale (9), which is used for containing prepared flow state solidified soil (1) and is arranged on the four hinged supports (3); the external test system (19) includes a strength test probe (10), a driving motor (11), a penetration strength analysis system (12) and a visual measurement system (20), wherein the strength test probe (10) is vertically arranged in a movable manner, the lower part penetrates into the inside of the environmental control box (15) after the middle part of the top cover, and is located above the visual container (2); the driving motor (11) is arranged on one side of the top cover, and the output end is connected with the strength test probe (10) for driving the strength test probe (10) to move up and down; the visual measurement system (20) is arranged on the inner surface of the top cover and located above the visual container (2); the penetration strength analysis system (12) and the environmental temperature control system (13) are arranged on the other side of the top cover of the environmental control box (15), and the penetration strength analysis system (12) is electrically connected with the strength test probe (10); the controller (14) is located on the side of the environmental control box (15) and is electrically connected with the vertical rod motor, the flow state solidified soil weight display system (7), the timing control system (8), the driving motor (11), the penetration strength analysis system (12), the temperature control system (13) and the visual measurement system (20).

2. The multi-index rapid testing and analysis device for the liquid-solidified soil considering the environmental temperature according to claim 1, characterized in that: The movable vertical rod (4) comprises a main rod (21), a hinge ring (18), an external limiting plate (16) and an internal limiting plate (17); the hinge ring (18) is a metal concentric ring, connected to the upper end of the main rod (21) and used for connecting the hinge support (3); the central parts of the external limiting plate (16) and the internal limiting plate (17) are respectively provided with a central hole sleeved on the upper part and the lower part of the main rod (21), wherein the external limiting plate (16) is located outside the upper end of the fixed vertical rod (5), the internal limiting plate (17) is located inside the fixed vertical rod (5), and the upper end of the fixed vertical rod (5) is provided with an inner edge to prevent the internal limiting plate (17) from coming out of the fixed vertical rod (5).

3. The multi-index rapid testing and analysis device for the liquid-solidified soil considering the ambient temperature according to claim 1, characterized in that: The environmental control box (15) is made of multilayer hollow organic glass material, filled with inert gas, and has the functions of visibility and heat preservation.

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