A device for detecting the effect of soil improvement on earth pressure balance shield tunneling and its application

Abstract

This invention belongs to the field of earth pressure balance shield tunneling technology, specifically relating to a device for detecting the effect of soil improvement on earth pressure balance shield tunneling and its application. The technical solution of this invention is as follows: A device for detecting the effect of soil improvement on earth pressure balance shield tunneling includes an upper frame, a lower frame, casters, a test module, and a monitoring and control module. The casters are located at the bottom of the lower frame, and the upper frame is mounted on the lower frame. The test module and the monitoring and control module are placed within the upper and lower frames. The test module is used to conduct shear tests, slump tests, and pressure permeability tests. The monitoring and control module is used for equipment operation, data collection, data calculation, and effect evaluation. This invention can simulate the physical and mechanical properties of the soil during actual shield tunneling excavation and muck removal, and intuitively evaluate the smoothness of soil removal. It can simulate the actual pressure value of the shield tunneling soil chamber, and evaluate the homogeneity and fluidity of the improved soil from a new perspective of soil force transmission efficiency and apparent density.

Description

Technical Field

[0001] This invention belongs to the field of earth pressure balance shield tunneling technology, specifically relating to a device for detecting the effect of soil improvement on earth pressure balance shield tunneling and its application. Background Technology

[0002] A crucial factor for the safe and efficient tunneling of earth pressure balance (EPB) shield tunnels is the ability to modify the excavated soil within the shield's soil chamber into a "plastic flow state." This ensures effective equilibrium within the chamber and smooth removal of the excavated soil, while preventing engineering accidents such as blowouts, mud cake formation, cutterhead blockage, and face instability during tunneling. In general, for normal shield tunneling operations, well-modified excavated soil can avoid many problems encountered during tunneling, not only reducing energy consumption and improving tunneling efficiency to a certain extent, but also significantly minimizing ground disturbance caused by the tunneling process.

[0003] In existing publicly available technologies, the evaluation parameters are relatively simple and inefficient. Most of them can only be used in the laboratory, have poor practicality, and are difficult to meet the needs of on-site testing. Furthermore, they require manual evaluation of the improvement effect, making it difficult to achieve automated evaluation.

[0004] A comprehensive evaluation and testing device and method for improving tunnel boring machine (TBM) slag and soil, disclosed in Chinese Invention Patent Publication No. CN115718188A, includes: a support unit; a permeability testing unit disposed on the support unit and connected to an air supply unit; an earth pressure loading unit disposed on the support unit and used to apply pressure to the permeability testing unit; a cutterhead shearing drive unit, partly disposed within the permeability testing unit for stirring the sample within the permeability testing unit, and partly disposed on the support unit; a propulsion unit disposed on the support unit for driving the permeability testing unit to move up and down; and an amendment injection unit connected to the cutterhead shearing drive unit and inputting amendment into the permeability testing unit through the cutterhead shearing drive unit. This device requires high measurement accuracy and durability from its components and cannot achieve intelligent evaluation, necessitating manual assessment.

[0005] A method and apparatus for automatic control testing of slag improvement, disclosed in Chinese Invention Patent Publication No. CN115754254A, includes: conducting a slag improvement test on the soil layer excavated by the tunnel boring machine (TBM) before slag improvement; using a cylindrical cylinder for a cylindrical slump test; constructing an analytical relationship between slag slump and shear strength of the slag based on the cylindrical slump test; conducting slag improvement tests according to the analytical relationship; obtaining the relationship between the slump of the improved slag and the amount of improved agent added by changing the injection parameters of the improver, thereby determining the optimal injection parameters of the improver; and applying these optimal injection parameters to the TBM construction. However, this method significantly simplifies the actual effect of the TBM cutterhead shearing slag, fails to accurately reflect the actual construction conditions, and uses only a single evaluation parameter, making comprehensive evaluation difficult. Summary of the Invention

[0006] This invention provides a device for detecting the effect of soil improvement on earth pressure balance shield tunneling and its application. It can simulate the physical and mechanical properties of soil during actual shield excavation and slag removal, and intuitively evaluate the smoothness of soil removal. It can also simulate the actual pressure value of the shield tunneling soil chamber, and evaluate whether the improved soil is homogeneous and has good fluidity from the new perspective of soil force transmission efficiency and apparent density.

[0007] The technical solution of the present invention is as follows:

[0008] A device for testing the effect of soil improvement on earth pressure balance shield tunneling sites includes an upper frame, a lower frame, casters, a test module, and a monitoring and control module. The casters are located at the bottom of the lower frame, and the upper frame is mounted on the lower frame. The test module and the monitoring and control module are placed within the upper and lower frames. The test module is used to conduct shear tests, slump tests, and pressure permeability tests, while the monitoring and control module is used for equipment operation, data collection, data calculation, and effect evaluation.

[0009] Furthermore, the earth pressure balance shield tunneling site slag improvement effect testing device includes a test module comprising a shearing cutterhead, a drive shaft, a variable frequency drive motor, an air compressor, a soil chamber, a water chamber, and a slump test barrel. The lower frame, from bottom to top, consists of a base plate, a support plate, a support plate, and a top plate. The water chamber is located on the base plate. A through hole is located at the center of support plate. The soil chamber is placed on support plate, with its bottom wall facing the water chamber through the through hole. The variable frequency drive motor and air compressor are located above support plate. The drive shaft passes through support plate, with its upper end fixedly connected to the output end of the variable frequency drive motor, and its lower end screwed to the shearing cutterhead. The shearing cutterhead is located below support plate 2 and opposite the soil chamber. The shearing cutterhead is used for shearing tests, and the slump test barrel is used for slump tests.

[0010] Furthermore, in the earth pressure balance shield tunneling site slag improvement effect testing device, the side wall of the soil chamber is equipped with a handle, multiple water outlets and a pressurization port, the bottom wall of the soil chamber is made of permeable material, and the air compressor is connected to the pressurization port through a pipeline; the soil chamber is used to conduct pressurized permeability tests.

[0011] Furthermore, in the earth pressure balance shield tunneling site slag improvement effect testing device, the shearing cutter disc includes a disc and multiple scrapers. The disc is screwed to the lower end of the drive shaft. The scrapers are distributed on the disc in a spoke-like structure, and the included angle between two adjacent scrapers is 60°.

[0012] Furthermore, the earth pressure balance shield tunneling site slag improvement effect detection device includes a monitoring and control module comprising an LCD touch screen all-in-one machine, a battery, a data acquisition box, and various sensors, including torque sensors, pressure sensors, displacement sensors, weight sensors, conductivity sensors, moisture content sensors, pore water pressure sensors, earth pressure sensors, and water flow sensors. The upper frame, from bottom to top, consists of a base plate two, a support plate three, and a top plate two. The support plate three is fixedly mounted on the base plate two via brackets. The battery is mounted on the base plate two. The LCD touch screen all-in-one machine and the data acquisition box are mounted on the support plate three. The torque sensor is located at the output end of the variable frequency drive motor, and the pressure sensor is located at... At the center of the lower end face of the disc, a displacement sensor is mounted on the drive shaft, a weight sensor is mounted inside the water chamber, and a conductivity sensor, a water content sensor, a pore water pressure sensor, and a soil pressure sensor are mounted on the inner wall of the soil chamber. A water flow sensor is mounted at the outlet of the soil chamber. The torque sensor, pressure sensor, displacement sensor, weight sensor, conductivity sensor, water content sensor, pore water pressure sensor, soil pressure sensor, and water flow sensor are connected to the data acquisition box via wires. The LCD touch screen all-in-one machine and the data acquisition box are connected via wires. The battery provides power to the variable frequency drive motor, the air compressor, the LCD touch screen all-in-one machine, and the data acquisition box.

[0013] Furthermore, in the earth pressure balance shield tunneling site slag improvement effect detection device, the data acquisition box is equipped with a preprocessing chip. The preprocessing chip preprocesses the data collected by the sensor and then transmits the preprocessed data to the LCD touch screen all-in-one machine for subsequent processing.

[0014] Furthermore, in the earth pressure balance shield tunneling site slag improvement effect testing device, the slump test barrel cover is used as a protective cover for electronic components on the data acquisition box.

[0015] Furthermore, the earth pressure balance shield tunneling site slag improvement effect detection device, and the touch screen of the LCD touch all-in-one machine, are used for manually inputting basic engineering parameters and displaying various indicators of improved slag and suggestions for improvement of undesirable parameters; the internal host of the LCD touch all-in-one machine integrates a circuit board and a running chip, the circuit board is used to store slag improvement databases for different projects and different soil types; the running chip integrates an artificial intelligence calculation model based on bp neural network, which can use the slag improvement database to form slag improvement effect models for different soil types, compare and analyze them with the data collected by the sensors, and realize intelligent evaluation of various properties of improved slag.

[0016] The application of the above-mentioned earth pressure balance shield tunneling excavation soil improvement effect testing device includes the following steps:

[0017] 1. Run the machine on-site without load to ensure normal operation and calibrate each sensor; take the improved slag and conduct a slump test using a slump test barrel, and input the relevant data into the LCD touch screen all-in-one machine;

[0018] 2. Fill the soil chamber with improved slag soil;

[0019] 3. Start the air compressor to adjust the pressure value in the soil chamber, conduct a pressure permeation test, and measure the permeation water flow rate through the water flow sensor;

[0020] 4. Start the variable frequency drive motor and conduct a shearing test. Adjust the rotation speed and feed speed of the shearing disc to the set values ​​so that the shearing disc cuts the improved slag in the soil bin.

[0021] 5. A torque sensor collects torque data of the shearing disc, a displacement sensor collects displacement data of the shearing disc, a pressure sensor collects downward thrust data of the shearing disc, a moisture content sensor collects moisture content data of the improved slag, a conductivity sensor collects electrical conductivity data of the improved slag, a pore water pressure sensor collects pore water pressure data of the improved slag, a soil pressure sensor collects soil pressure data of the improved slag, and a weight sensor collects total weight data of infiltrated water. All data are transmitted to a data acquisition box, where a preprocessing chip preprocesses the data and then transmits the preprocessed data to an LCD touch screen all-in-one machine.

[0022] VI. The LCD touch screen all-in-one machine processes and evaluates the data, assesses the various properties of the improved slag, and provides suggestions for slag improvement.

[0023] 7. After the test, turn off the equipment and clean it.

[0024] Furthermore, in the application of the earth pressure balance shield tunneling site slag improvement effect detection device, step six specifically includes the following steps: data processing based on the improved slag database and artificial intelligence based on bp neural network; establishing multiple slag improvement models and optimizing model parameters to obtain the optimal parameters for slag improvement; comparing the preprocessed data with the calculated optimal parameters for slag improvement to evaluate the slag improvement effect; and predicting the slag improvement effect based on construction geological data.

[0025] The working principle of this invention is as follows: Improved slag soil is comprehensively evaluated through multiple parameters, including pressure permeability testing, resistivity measurement, moisture content measurement, earth pressure measurement, and shear testing. The improved slag soil is loaded into a soil chamber, and the pressure inside the chamber is adjusted using an air compressor. A pressure permeability test is then conducted to determine the impermeability of the improved slag soil. The improved slag soil in the soil chamber is sheared by a shearing disc to determine if its shear strength meets the requirements. The pressure value measured by the earth pressure sensor is compared with the downward thrust data of the shearing disc collected by the pressure sensor to determine the pressure transmission efficiency of the improved slag soil. Simultaneously, the pressure gradient at the tunnel face can be calculated based on the pressure value, and the apparent density of the slag soil can be derived and compared with the ideal slag soil density to evaluate the effectiveness of the improved slag soil. The improved slag soil is comprehensively evaluated from multiple aspects, including fluidity, pressure transmission efficiency, and apparent density, to determine whether it meets the requirements for shield tunneling construction.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0027] 1) This device can reproduce the dynamic and continuous construction process of earth pressure balance shield tunneling.

[0028] 2) The device measures various parameters through sensors and displays the parameters of the improved soil directly on a touch screen. 3) The device can adopt different shear disc structures and arrangements as needed, and the rotation speed of the shear disc can be adjusted to simulate different construction conditions, thereby providing strong technical support for tunnel boring machine construction; the shear disc ensures no blind spots in soil cutting, thus accurately cutting the improved soil.

[0029] 4) This device integrates multiple testing functions, such as evaluation of soil improvement under pressure, and can perform soil improvement evaluation on different types of soil.

[0030] 5) The device has a built-in database of slag improvement data for different projects and soil types. It also integrates an AI calculation model based on a backpropagation neural network, enabling the generation of slag improvement effect models for different soil types. These models can be compared and analyzed with the data collected by the device, allowing for intelligent evaluation of multiple properties of the test slag. 7) The device is simple, convenient, rationally designed, highly operable, and has low testing costs. Small-scale field tests before actual tunnel boring machine (TBM) construction can improve construction efficiency, ensure safe TBM tunneling, and comprehensively evaluate the slag improvement effect.

[0031] 8) The device has a built-in weight sensor in the water tank, which can test the amount of water seepage in the slag and ensure the accuracy of the pressure seepage test data.

[0032] 9) This invention provides a new solution for on-site testing of slag improvement. Compared with traditional slump tests, it can more realistically reproduce the actual shield tunnel slag improvement construction process and comprehensively and systematically evaluate the slag improvement effect. It can provide strong support for the selection and ratio optimization of slag improvement agents for earth pressure balance shield tunnel construction. Attached Figure Description

[0033] Figure 1 This is the main view of the lower frame;

[0034] Figure 2 This is a sectional view of the three-dimensional portion of the lower frame.

[0035] Figure 3 This is the main view of the upper frame;

[0036] Figure 4 This is a sectional view of the three-dimensional part of the upper frame;

[0037] Figure 5 Main view of the device for detecting the soil improvement effect at the earth pressure balance shield tunneling site;

[0038] Figure 6 A three-dimensional cross-sectional view of the device for detecting the soil improvement effect at the earth pressure balance shield tunneling site.

[0039] Figure 7 This is a schematic diagram of the shearing blade disc. Detailed Implementation

[0040] like Figure 1-7 As shown, a device for testing the effect of soil improvement on earth pressure balance shield tunneling includes an upper frame 10, a lower frame 1, casters 2, a test module, and a monitoring and control module. The casters 2 are located at the bottom of the lower frame 1, and the upper frame 10 is mounted on the lower frame 1. The test module and the monitoring and control module are placed in the upper frame 10 and the lower frame 1. The test module is used to conduct shear tests, slump tests, and pressure permeability tests, while the monitoring and control module is used for equipment operation, data collection, data calculation, and effect evaluation.

[0041] The test module includes a shearing disc 8, a drive shaft, a variable frequency drive motor 9, an air compressor 7, a soil chamber 4, a water chamber 3, and a slump test barrel 14. The lower frame 1 is provided with a bottom plate 1, a support plate 1, a support plate 2, and a top plate 1 from bottom to top. The water chamber 3 is set on the bottom plate. A through hole is provided at the center of the support plate 1. The soil chamber 4 is placed on the support plate 1, and the bottom wall of the soil chamber 4 is opposite to the water chamber 3 through the through hole. The variable frequency drive motor 9 and the air compressor 7 are set above the support plate 2. The drive shaft passes through the support plate 2. The upper end of the drive shaft is fixedly connected to the output end of the variable frequency drive motor 9, and the lower end of the drive shaft is screwed together with the shearing disc 8. The shearing disc 8 is located below the support plate 2 and opposite to the soil chamber 4. The shearing disc 8 is used to perform shearing tests, and the slump test barrel 14 is used to perform slump tests.

[0042] The side wall of the soil chamber 4 is provided with a handle 5, multiple water outlets 6 and a pressurization port. The bottom wall of the soil chamber 4 is made of permeable material. The air compressor 7 is connected to the pressurization port through a pipeline. The soil chamber 4 is used to conduct pressurized infiltration tests.

[0043] The shearing disc 8 includes a disc 15 and multiple scrapers 16. The disc 15 is screwed to the lower end of the drive shaft. The scrapers 16 are distributed on the disc 15 in a spoke-like structure, and the included angle between two adjacent scrapers 16 is 60°.

[0044] The monitoring and control module includes an LCD touch screen all-in-one machine 12, a battery 11, a data acquisition box 13, and various sensors, including a torque sensor, a pressure sensor, a displacement sensor, a weight sensor, a conductivity sensor, a water content sensor, a pore water pressure sensor, a soil pressure sensor, and a water flow sensor. The upper frame 10 consists of a base plate 2, a support plate 3, and a top plate 2, arranged sequentially from bottom to top. The support plate 3 is fixedly mounted on the base plate 2 via a bracket. The battery 11 is mounted on the base plate 2. The LCD touch screen all-in-one machine 12 and the data acquisition box 13 are mounted on the support plate 3. The torque sensor is located at the output end of the variable frequency drive motor 9, and the pressure sensor is located at the center of the lower end face of the disc 15. The displacement sensor is mounted on the drive shaft, the weight sensor is mounted inside the water chamber 3, the conductivity sensor, water content sensor, pore water pressure sensor, and soil pressure sensor are mounted on the inner wall of the soil chamber 4, and the water flow sensor is mounted on the outlet 6 of the soil chamber 4. The torque sensor, pressure sensor, displacement sensor, weight sensor, conductivity sensor, water content sensor, pore water pressure sensor, soil pressure sensor, and water flow sensor are connected to the data acquisition box 13 via wires. The LCD touch screen all-in-one machine 12 and the data acquisition box 13 are connected via wires. The battery 11 provides power to the frequency converter drive motor 9, the air compressor 7, the LCD touch screen all-in-one machine 12, and the data acquisition box 13.

[0045] The data acquisition box 13 is equipped with a preprocessing chip, which preprocesses the data acquired by the sensor and then transmits the preprocessed data to the LCD touch screen all-in-one machine 12 for further processing. The slump test barrel 14 is placed over the data acquisition box 13 as a protective cover for electronic components.

[0046] The touch screen of the LCD touch screen all-in-one machine 12 is used for manually inputting basic engineering parameters and displaying various indicators of improved slag and suggestions for improvement of undesirable parameters. The internal host of the LCD touch screen all-in-one machine 12 integrates a circuit board and a running chip. The circuit board is used to store slag improvement databases for different projects and different soil types. The running chip integrates an artificial intelligence calculation model based on a backpropagation neural network, which can use the slag improvement database to form slag improvement effect models for different soil types, compare and analyze them with the data collected by the sensors, and realize intelligent evaluation of various properties of improved slag.

[0047] The application of the above-mentioned earth pressure balance shield tunneling excavation soil improvement effect testing device includes the following steps:

[0048] 1. Run the machine on-site without load to ensure normal operation and calibrate each sensor; take the improved slag soil and conduct a slump test using the slump test barrel 14, and input the relevant data into the LCD touch screen all-in-one machine 12; 2. Fill the soil chamber 4 with the improved slag soil.

[0049] 3. Start the air compressor 7 to adjust the pressure value in the soil chamber 4, conduct a pressure permeation test, and measure the permeation water flow rate through the water flow sensor;

[0050] IV. Start the variable frequency drive motor 9 and conduct a shearing test. Adjust the rotation speed and feed speed of the shearing disc 8 to the set value so that the shearing disc 8 cuts the improved slag in the soil chamber 4.

[0051] 5. A torque sensor collects torque data of the shearing disc 8, a displacement sensor collects displacement data of the shearing disc 8, a pressure sensor collects downward thrust data of the shearing disc 8, a moisture content sensor collects moisture content data of the improved slag, a conductivity sensor collects conductivity data of the improved slag, a pore water pressure sensor collects pore water pressure data of the improved slag, a soil pressure sensor collects soil pressure data of the improved slag, and a weight sensor collects total weight data of infiltrated water. All data are transmitted to the data acquisition box 13. The preprocessing chip preprocesses the data and then transmits the preprocessed data to the LCD touch screen all-in-one machine 12.

[0052] VI. The LCD touch screen all-in-one machine 12 processes and evaluates the data, assesses various properties of the improved construction waste, and provides suggestions for construction waste improvement; specifically as follows: data processing is performed based on the improved construction waste database and artificial intelligence based on BP neural network; multiple construction waste improvement models are established and the model parameters are optimized to obtain the optimal parameters for construction waste improvement; the preprocessed data is compared with the calculated optimal parameters for construction waste improvement to evaluate the effect of construction waste improvement; and the effect of construction waste improvement is predicted based on construction geological data.

[0053] 7. After the test, turn off the equipment and clean it.

Claims

1. A device for detecting the effect of soil improvement on earth pressure balance shield tunneling, characterized in that, It includes an upper frame, a lower frame, casters, a testing module, and a monitoring and control module. The casters are located at the bottom of the lower frame, and the upper frame is mounted on the lower frame. The testing module and the monitoring and control module are placed within the upper and lower frames. The testing module is used to conduct shear tests, slump tests, and pressure permeation tests, while the monitoring and control module is used for equipment operation, data collection, data processing, and effect evaluation. The test module includes a shearing disc, a drive shaft, a variable frequency drive motor, an air compressor, a soil chamber, a water chamber, and a slump test barrel. The lower frame, from bottom to top, consists of a base plate, a support plate, a second support plate, and a top plate. The water chamber is located on the base plate. A through hole is located at the center of the support plate. The soil chamber is placed on the support plate, with its bottom wall facing the water chamber through the through hole. The variable frequency drive motor and air compressor are located above the second support plate. The drive shaft passes through the second support plate, with its upper end fixedly connected to the output end of the variable frequency drive motor, and its lower end screwed to the shearing disc. The shearing disc is located below the second support plate and opposite the soil chamber. The shearing disc is used for shearing tests, and the slump test barrel is used for slump tests. The shearing disc includes a disc and multiple scrapers. The disc is screwed to the lower end of the drive shaft. The scrapers are distributed on the disc in a spoke-like structure, with an included angle of 60° between adjacent scrapers. The monitoring and control module includes an LCD touch screen all-in-one machine, a battery, a data acquisition box, and various sensors, including a torque sensor, a pressure sensor, a displacement sensor, a weight sensor, a conductivity sensor, a water content sensor, a pore water pressure sensor, a soil pressure sensor, and a water flow sensor. The upper frame, from bottom to top, consists of a base plate two, a support plate three, and a top plate two. The support plate three is fixedly mounted on the base plate two via a bracket. The battery is mounted on the base plate two. The LCD touch screen all-in-one machine and the data acquisition box are mounted on the support plate three. The torque sensor is located at the output end of the variable frequency drive motor, and the pressure sensor is located at the center of the lower end face of the disc. A displacement sensor is mounted on the drive shaft, a weight sensor is mounted inside the water chamber, and a conductivity sensor, a water content sensor, a pore water pressure sensor, and a soil pressure sensor are mounted on the inner wall of the soil chamber. A water flow sensor is mounted at the outlet of the soil chamber. The torque sensor, pressure sensor, displacement sensor, weight sensor, conductivity sensor, water content sensor, pore water pressure sensor, soil pressure sensor, and water flow sensor are connected to the data acquisition box via wires. The LCD touch screen all-in-one machine and the data acquisition box are connected via wires. The battery provides power to the variable frequency drive motor, the air compressor, the LCD touch screen all-in-one machine, and the data acquisition box. The data acquisition box is equipped with a preprocessing chip, which preprocesses the data collected by the sensor and then transmits the preprocessed data to the LCD touch screen all-in-one machine for further processing. The slump test barrel cover is used as a protective cover for electronic components on the data acquisition box; The touchscreen display of the LCD touchscreen all-in-one machine is used for manual input of basic engineering parameters and display of various indicators of improved slag and suggestions for improvement of undesirable parameters. The internal host of the LCD touchscreen all-in-one machine integrates a circuit board and a running chip. The circuit board is used to store slag improvement databases for different projects and different soil types. The running chip integrates an artificial intelligence calculation model based on a backpropagation neural network, which can use the slag improvement database to form slag improvement effect models for different soil types, compare and analyze them with the data collected by the sensors, and realize intelligent evaluation of various properties of improved slag. The side wall of the soil chamber is equipped with a handle, multiple water outlets and a pressurization port. The bottom wall of the soil chamber is made of a permeable material. The air compressor is connected to the pressurization port through a pipeline. The soil chamber is used for pressurized infiltration tests.

2. The application of the earth pressure balance shield tunneling site slag improvement effect testing device as described in claim 1, characterized in that, Includes the following steps:

1. Run the machine on-site without load to ensure normal operation and calibrate each sensor; take the improved slag and conduct a slump test using a slump test barrel, and input the relevant data into the LCD touch screen all-in-one machine; 2. Fill the soil chamber with improved slag soil; 3. Start the air compressor to adjust the pressure value in the soil chamber, conduct a pressure permeation test, and measure the permeation water flow rate through the water flow sensor; 4. Start the variable frequency drive motor and conduct a shearing test. Adjust the rotation speed and feed speed of the shearing disc to the set values ​​so that the shearing disc cuts the improved slag in the soil bin.

5. A torque sensor collects torque data of the shearing disc, a displacement sensor collects displacement data of the shearing disc, a pressure sensor collects downward thrust data of the shearing disc, a moisture content sensor collects moisture content data of the improved slag, a conductivity sensor collects electrical conductivity data of the improved slag, a pore water pressure sensor collects pore water pressure data of the improved slag, a soil pressure sensor collects soil pressure data of the improved slag, and a weight sensor collects total weight data of infiltrated water. All data are transmitted to a data acquisition box, where a preprocessing chip preprocesses the data and then transmits the preprocessed data to an LCD touch screen all-in-one machine. VI. The LCD touch screen all-in-one machine processes and evaluates the data, assesses the various properties of the improved slag, and provides suggestions for slag improvement.

7. After the test, turn off the equipment and clean it.

3. The application of the earth pressure balance shield tunneling site spoil improvement effect testing device according to claim 2, characterized in that, Step six specifically includes the following steps: data processing based on the improved slag database and artificial intelligence based on bp neural network; establishing multiple slag improvement models and optimizing model parameters to obtain the optimal parameters for slag improvement; comparing the preprocessed data with the calculated optimal parameters for slag improvement to evaluate the effect of slag improvement; and predicting the effect of slag improvement based on construction geological data.

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