Device for measuring resistivity of gravel pile for indoor test

By designing a gravel pile resistivity measurement device that includes multi-point measurement components and linkage components, the problem that existing equipment cannot simulate the test environment and control the measurement environment in real time is solved, and accurate measurement of resistivity and rapid replacement of gravel are achieved, which improves the efficiency and accuracy of the test.

CN119716252AActive Publication Date: 2025-03-28EAST CHINA UNIV OF TECH
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Patent Information

Application Number
CN202411839295.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-03-28
Estimated Expiration
2044-12-13

AI Technical Summary

Technical Problem

Existing equipment cannot simulate the test environment in real time during detection, resulting in errors in data, and the measurement environment is in direct contact with the external environment, which cannot be effectively controlled, affecting the accuracy of resistivity data.

Method used

A gravel pile resistivity measurement device for indoor testing is designed, including a multi-point measurement assembly and a linkage assembly. Through lifting and lowering electric slide rails, electric heating plates, vacuum pumps and vibrating motors, the temperature, humidity and air pressure of the test environment can be adjusted in real time, and the compaction of the gravel can be changed through vibration compaction treatment to achieve accurate measurement of resistivity.

Benefits of technology

It effectively reduces the impact of the test environment on resistivity measurement, improves the accuracy of data, and realizes rapid replacement of gravel and stability of equipment through linkage components, reducing the labor intensity of testers.

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Abstract

The invention discloses a macadam pile resistivity measurement device for indoor test, and relates to the technical field of macadam resistance measurement, the bottom end of the inner side of an integrated treatment box is clamped with a treatment matching frame, a plurality of lifting electric sliding rails are symmetrically mounted on the inner side of the treatment matching frame at equal intervals, and one end of each lifting electric sliding rail is connected with a [-shaped clamping strip through a sliding rail seat; one end of the [-shaped clamping strip is clamped with a correction electric slide rail, one end of the correction electric slide rail is provided with an insulation sleeve box through a slide rail seat, the inner side of the insulation sleeve box is symmetrically provided with an in-out electric slide rail, and one end of the in-out electric slide rail is clamped with an in-out electrode through a slide rail seat. According to the method, the problems that in the prior art, the environment cannot be effectively controlled, and the accurate value and the accuracy of resistivity measurement are affected are solved, meanwhile, the resistivity of a gravel pile under different conditions is measured by controlling the compactness of gravel, and the accuracy of data measurement is effectively improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of gravel resistance measurement, and specifically to a device for measuring the resistivity of a gravel pile for indoor tests. Background Art

[0002] The measurement of the resistivity of a gravel pile is an important test method for evaluating the electrical properties of geotechnical materials. This measurement has a wide range of applications in fields such as civil engineering, geological exploration, and environmental monitoring. Resistivity can reflect characteristics such as the water content, porosity, and mineral composition of soil or rock. The measurement methods include the four-electrode method, the traditional resistance method, the ground resistivity instrument, etc. Currently, generally, soil or rock in the environment is obtained through sampling, and the sampled products are used for testing.

[0003] However, when testing the sampled products at present, due to the change in the environment where the samples are located and the compactness of the samples themselves, and the existing equipment cannot simulate the test environment in real time during testing, resulting in errors in the data at the test site. Moreover, the measurement environment is in direct contact with the external environment and cannot be effectively controlled, resulting in the resistivity being affected by the external environment during measurement, which affects the accuracy of the measured resistivity data. Summary of the Invention

[0004] The present invention provides a device for measuring the resistivity of a gravel pile for indoor tests, which can effectively solve the problems raised in the above background art. When testing the sampled products at present, due to the change in the environment where the samples are located and the compactness of the samples themselves, and the existing equipment cannot simulate the test environment in real time during testing, resulting in errors in the data at the test site. Moreover, the measurement environment is in direct contact with the external environment and cannot be effectively controlled, resulting in the resistivity being affected by the external environment during measurement, which affects the accuracy of the measured resistivity data.

[0005] To achieve the above object, the present invention provides the following technical solution: A device for measuring the resistivity of a gravel pile for indoor tests, including an integrated processing box, and a multi-point measurement component is arranged inside the integrated processing box;

[0006] The multi-point measurement component includes a processing cooperation frame;

[0007] The processing cooperation frame is snap-connected to the inner bottom end of the integrated processing box. A number of lifting electric slide rails are equidistantly and symmetrically installed inside the processing cooperation frame. One end of the lifting electric slide rail is connected to a U-shaped clamping strip through a slide rail seat. One end of the U-shaped clamping strip is snap-connected to a correction electric slide rail. One end of the correction electric slide rail is installed with an insulating sleeve box through a slide rail seat. Inside the insulating sleeve box, access electric slide rails are symmetrically installed. One end of the access electric slide rail is snap-connected to access electrodes through a slide rail seat.

[0008] A fixed electromagnetic ring is sleeved at the inner top end of the processing cooperation frame. The side end of the fixed electromagnetic ring is magnetically connected to an access and egress processing box. A plurality of vibration springs are equidistantly installed at the inner bottom end of the access and egress processing box. The top ends of the plurality of vibration springs are clamped with a load-bearing support frame. A vibration motor is installed at the bottom end of the load-bearing support frame through a motor base. A damper is clamped between the load-bearing support frame and the inner side of the access and egress processing box. A sealing airbag is adhesively connected between the side end of the load-bearing support frame and the access and egress processing box;

[0009] An isolation limit sleeve is clamped in the middle of the inner side of the integrated processing box. A dual-axis motor is equidistantly installed at the outer side end of the isolation limit sleeve through a motor base. A fixed electromagnet is clamped at the side end of the output shaft of the dual-axis motor. One end of the fixed electromagnet is magnetically connected to an isolation support plate. A plurality of access insertion holes are equidistantly opened at the side end of the isolation limit sleeve.

[0010] According to the above technical solution, an outer discharge pipe rack is penetrated and connected to one end of the integrated processing box. A vacuum pump is installed at the position corresponding to the outer discharge pipe rack at one end of the integrated processing box through a motor base. A closing seal cover is hinged at the top end of the integrated processing box;

[0011] A plurality of temperature and humidity detectors are equidistantly installed at the top end of the closing seal cover. A sealing electromagnet is clamped at the position corresponding to the closing seal cover at the top end of the integrated processing box. Electric heating plates are embedded at both ends of the inner side of the isolation limit sleeve.

[0012] According to the above technical solution, the U-shaped clamping strip is slidably sleeved on the side end of the processing cooperation frame. The side end of the access electrode is slidably fitted with an insulating sleeve box. The insulating sleeve box is slidably connected to the U-shaped clamping strip.

[0013] According to the above technical solution, there are eight access electrodes and insulating sleeve boxes each. The access and egress processing box is placed in the middle of the inner side of the integrated processing box.

[0014] According to the above technical solution, the load-bearing support frame is placed inside the access and egress processing box. The top end of the access and egress processing box is sleeved and connected to the bottom end of the isolation limit sleeve.

[0015] According to the above technical solution, the isolation support plate is rotationally embedded inside the access insertion hole. One end of the vacuum pump is connected to one end of the outer discharge pipe rack through a connector.

[0016] According to the above technical solution, the sealing electromagnet is magnetically connected to the closing seal cover;

[0017] The input ends of the lifting electric slide rail, correction electric slide rail, access and egress electric slide rail, access electrode, fixed electromagnetic ring, vibration motor, dual-axis motor, fixed electromagnet, vacuum pump, temperature and humidity detector, sealing electromagnet and electric heating plate are all electrically connected to the output end of an external controller;

[0018] The signal output terminals of the input and output electrodes and the temperature and humidity detector are electrically connected to the signal input terminal of the external controller;

[0019] The input end of the external controller is electrically connected to the output end of the external power supply.

[0020] According to the above technical solution, a linkage assembly is provided at the side end of the integrated processing box;

[0021] The linkage assembly includes an in-and-out electric push rod;

[0022] The bottom inner end of the integrated processing box is equidistantly connected with a number of in-and-out electric push rods, the bottom end of the in-and-out electric push rods is connected with an in-and-out alignment plate, the top of the in-and-out alignment plate is equidistantly installed with a number of linkage electric push rods, the bottom end of the linkage electric push rods is connected with a linkage support plate, one end of the integrated processing box is fixed with an inner hole support block, one end of the inner hole support block is equipped with a rotating motor through a motor seat, the output shaft of the rotating motor is connected with a rotating alignment plate, one end of the rotating alignment plate is symmetrically connected with an alignment electric slide rail, and one end of the alignment electric slide rail is equipped with an operation display through a slide rail seat.

[0023] According to the above technical solution, the top end of the in-and-out alignment plate is fixedly connected to the bottom end of the in-and-out processing box, and the rotation alignment plate is rotationally fitted with the inner hole support block.

[0024] According to the above technical solution, the operation display is slidably fitted with the rotary alignment plate;

[0025] The input ends of the in-and-out electric push rod, the linkage electric push rod, the rotary motor and the alignment electric slide rail are all electrically connected to the output end of the operation display;

[0026] The input end of the operation display is electrically connected to the external power output.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. A multi-point measurement component is provided. The gravel is placed inside the inlet and outlet processing box and the isolation limit sleeve. The sealing electromagnet is used to close the sealing cover and the integrated processing box sealing combination. The temperature of the environment is changed by the electric heating plate, and the air pressure of the environment is changed by the vacuum pump. The internal humidity can be controlled in coordination with each other to adjust the temperature, humidity and air pressure of the test environment. The test environment is controlled according to the test requirements and the influence of the test environment on the resistivity is reduced.

[0029] The lifting and lowering electric slide rail drives the C-shaped clamping strip, the correction electric slide rail drives the insulating sleeve box, and the in-out electric slide rail drives the in-out electrodes. Adjust the positions of the four groups of electrodes during testing according to the test requirements. Using the four-electrode method, calculate the resistivity by applying current and measuring voltage. Cooperate with the dual-axis motor to drive the fixed electromagnet and the isolation support plate to open the in-out insertion hole, and the vibration motor drives the load-bearing support frame to vibrate and compact the crushed stones with the assistance of vibration springs, dampers and sealed air bags. Through the compactness between the crushed stones, the positions where the electrodes are inserted, and the distances between the electrodes, multi-group resistivity data tests are realized, so that more data can be obtained during the test process. And through real-time simulation, the corresponding environmental detection is realized, reducing the situation of large data errors caused by changes in the test environment and the self-environment of the crushed stones, facilitating the testers to more accurately understand the resistivity of the crushed stone pile;

[0030] Control the internal temperature, humidity and pressure through the inlet and outlet of electric heat and air pump, and cooperate with vibration to change the compactness between the crushed stones. At the same time, the positions between the electrodes and the stones and between the electrodes are changed by multiple groups of components, effectively solving the problem in the prior art that the measurement environment is in direct contact with the external environment and the environment cannot be effectively controlled, affecting the accurate value and accuracy of the resistivity measurement. At the same time, by controlling the compactness of the crushed stones, the resistivity of the crushed stone pile under different conditions is measured, effectively improving the accuracy of data measurement.

[0031] 2. A linkage component is provided. The linkage electric push rod drives the linkage support plate to lift and lower, changing the height of the integrated processing box. The in-out electric push rod drives the in-out alignment plate to push into and move in and out of the in-out processing box, realizing the nested connection between the in-out alignment plate and the in-out processing box and the integrated processing box, so that the crushed stones inside can be quickly discharged during the test. And through direct lifting processing, it avoids the crushed stones from splashing and falling into the equipment, ensuring the stability of the equipment. At the same time, it improves the efficiency of continuous testing of replacing stones as a whole, reducing the complexity and labor intensity of the testers' operations. The rotation motor drives the rotation alignment plate, and the alignment electric slide rail drives the operation display, changing the angle and position of the operation display, so as to adjust the position of the operation display according to the operation habit, improving the comfort of the operator during the test operation.

[0032] In summary, through the mutual cooperation of the multi-point measurement component and the linkage component, through lifting and alignment nesting, the crushed stones are quickly replaced, and with external control, the internal measurement position is changed, realizing accurate alignment measurement, improving the simplicity and comfort of the operation. At the same time, it reduces the errors caused by direct manual contact measurement by personnel. Through the mutual cooperation of multiple components, the accuracy of measurement is effectively improved. Description of the Drawings

[0033] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0034] In the accompanying drawings:

[0035] Figure 1 is a schematic three-dimensional structure diagram of the present invention;

[0036] Figure 2 is a schematic structure diagram of the multi-point measurement component of the present invention;

[0037] Figure 3 is a schematic installation structure diagram of the C-shaped clamping strip of the present invention;

[0038] Figure 4 is a schematic installation structure diagram of the fixed electromagnet of the present invention;

[0039] Figure 5 is a schematic installation structure diagram of the vibration spring of the present invention;

[0040] Figure 6 is a schematic installation structure diagram of the power input / output slide rail of the present invention;

[0041] Figure 7 is a schematic structure diagram of the linkage component of the present invention;

[0042] Figure 8 is a schematic installation structure diagram of the rotary motor of the present invention;

[0043] Figure 9 is a schematic cross-sectional view of the present invention;

[0044] Reference numerals in the figure: 1. Integrated processing box;

[0045] 2. Multi-point measurement component; 201. Processing cooperation frame; 202. Lifting power input / output slide rail; 203. C-shaped clamping strip; 204. Correction power input / output slide rail; 205. Insulating sleeve box; 206. Power input / output slide rail; 207. Power input / output electrode; 208. Fixed electromagnetic ring; 209. Power input / output processing box; 210. Vibration spring; 211. Bearing support frame; 212. Vibration motor; 213. Damper; 214. Sealing airbag; 215. Isolation limit sleeve; 216. Biaxial motor; 217. Fixed electromagnet; 218. Isolation support plate; / / 219. Power input / output insertion hole; 220. Outer exhaust pipe rack; 221. Vacuum pump; 222. Closing seal cover; 223. Temperature and humidity detector; 224. Sealing electromagnet; 225. Electric heating plate;

[0046] Note: There seems to be a potential error in the original text where "219. Power input / output insertion hole" might be incorrect in terms of naming consistency. It should probably be something more like "Input / Output Insertion Hole" to be more accurate in the context. This translation is done as per the given text while trying to maintain the integrity of the technical terms as much as possible.3. Linkage components; 301. In-out electric push rod; 302. In-out alignment plate; 303. Linkage electric push rod; 304. Linkage support plate; 305. Inner hole support block; 306. Rotating motor; 307. Rotating alignment plate; 308. Alignment electric slide rail; 309. Operation display. Detailed implementation manner

[0047] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0048] Embodiment: As Figure 1-9 shown, the present invention provides a technical solution, a device for measuring the resistivity of a gravel pile for indoor tests, including an integrated processing box 1, and a multi-point measurement component 2 is arranged inside the integrated processing box 1;

[0049] The multi-point measurement component 2 includes a processing cooperation frame 201, a lifting electric slide rail 202, a C-shaped clamping strip 203, a correction electric slide rail 204, an insulating sleeve box 205, an in-out electric slide rail 206, an in-out electrode 207, a fixed electromagnetic ring 208, an in-out processing box 209, a vibration spring 210, a load-bearing support frame 211, a vibration motor 212, a damper 213, a sealing airbag 214, an isolation limiting sleeve 215, a double-shaft motor 216, a fixed electromagnet 217, an isolation support plate 218, an in-out insertion hole 219, an outer discharge pipe rack 220, a vacuum pump 221, a closing sealing cover 222, a temperature and humidity detector 223, a sealing electromagnet 224 and a heating plate 225;

[0050] The processing cooperation frame 201 is clamped at the inner bottom end of the integrated processing box 1. A plurality of lifting electric slide rails 202 are equidistantly and symmetrically installed inside the processing cooperation frame 201. One end of the lifting electric slide rail 202 is connected to the C-shaped clamping strip 203 through a slide rail seat. The C-shaped clamping strip 203 is slidably sleeved on the side end of the processing cooperation frame 201. The side end of the in-out electrode 207 is slidably fitted with the insulating sleeve box 205. The insulating sleeve box 205 is slidably connected to the C-shaped clamping strip 203. By adjusting the lifting at multiple positions and simultaneously performing guiding and supporting, it is ensured that the electrode can be accurately inserted into the position to be measured, ensuring the accuracy of the result. One end of the C-shaped clamping strip 203 is clamped with a correction electric slide rail 204. One end of the correction electric slide rail 204 is installed with an insulating sleeve box 205 through a slide rail seat. The in-out electric slide rails 206 are symmetrically installed inside the insulating sleeve box 205. One end of the in-out electric slide rail 206 is clamped with an in-out electrode 207 through a slide rail seat. There are eight in-out electrodes 207 and insulating sleeve boxes 205, ensuring the accuracy of measurement alignment;

[0051] A fixed electromagnetic ring 208 is sleeved on the top of the inner side of the processing and coordination frame 201, and the side end of the fixed electromagnetic ring 208 is magnetically connected to the in-and-out processing box 209. A number of vibration springs 210 are evenly installed on the bottom end of the inner side of the in-and-out processing box 209. The top ends of the multiple vibration springs 210 are clamped with a load-bearing support frame 211. The bottom end of the load-bearing support frame 211 is installed with a vibration motor 212 through a motor seat. A damper 213 is clamped between the load-bearing support frame 211 and the inner side of the in-and-out processing box 209. A sealing airbag 214 is bonded between the side end of the load-bearing support frame 211 and the in-and-out processing box 209.

[0052] An isolation limit sleeve 215 is clamped on the middle part of the inner side of the integrated processing box 1, the inlet and outlet processing box 209 is placed in the middle part of the inner side of the integrated processing box 1, and the load-bearing support frame 211 is placed on the inner side of the inlet and outlet processing box 209. The top of the inlet and outlet processing box 209 is sleeved and connected with the bottom end of the isolation limit sleeve 215 to achieve steady sleeve feeding and prevent gravel from splashing and falling to a position outside the measurement, ensuring the accuracy of the data. A dual-axis motor 216 is equidistantly installed on the outer end of the isolation limit sleeve 215 through the motor seat, and a fixed electromagnet 217 is clamped on the side end of the output shaft of the dual-axis motor 216. An isolation support plate 218 is magnetically connected to one end of the fixed electromagnet 217. A number of entry and exit insertion holes 219 are equidistantly opened on the side end of the isolation limit sleeve 215. The isolation support plate 218 is rotatably embedded and installed on the inner side of the entry and exit insertion hole 219 to ensure the stability of the isolation protection and at the same time perform the required expansion processing according to the measurement, which is convenient for testing and isolation protection.

[0053] One end of the integrated processing box 1 is connected through an outer pipe rack 220, and a vacuum pump 221 is installed at the position of the outer pipe rack 220 at one end of the integrated processing box 1 through a motor seat. One end of the vacuum pump 221 is connected to one end of the outer pipe rack 220 through an adapter to achieve steady air inlet and outlet processing. A closed sealing cover 222 is hinged on the top of the integrated processing box 1, and a number of temperature and humidity detectors 223 are equidistantly installed on the top of the closed sealing cover 222. A sealing electromagnet 224 is clamped at the position of the closed sealing cover 222 at the top of the integrated processing box 1. The sealing electromagnet 224 is magnetically connected to the closed sealing cover 222 to ensure the sealing effect and stability. Electric heating plates 225 are embedded and installed at both ends of the inner side of the isolation limit sleeve 215;

[0054] For stable operation of the equipment, the input ends of the lifting electric slide 202, the correction electric slide 204, the in-and-out electric slide 206, the in-and-out electrode 207, the fixed electromagnetic ring 208, the vibration motor 212, the dual-axis motor 216, the fixed electromagnet 217, the vacuum pump 221, the temperature and humidity detector 223, the sealing electromagnet 224 and the electric heating plate 225 are all electrically connected to the output end of the external controller;

[0055] The signal output terminals of the input and output electrodes 207 and the temperature and humidity detector 223 are electrically connected to the signal input terminals of the external controller;

[0056] The input end of the external controller is electrically connected to the output end of the external power supply.

[0057] A linkage assembly 3 is provided at the side end of the integrated processing box 1;

[0058] The linkage assembly 3 includes an in-and-out electric push rod 301, an in-and-out alignment plate 302, a linkage electric push rod 303, a linkage support plate 304, an inner hole support block 305, a rotating motor 306, a rotating alignment plate 307, an alignment electric slide rail 308 and an operation display 309;

[0059] The bottom end of the inner side of the integrated processing box 1 is equidistantly connected with a number of in-and-out electric push rods 301, the bottom end of the in-and-out electric push rods 301 is connected with an in-and-out alignment plate 302, and the top of the in-and-out alignment plate 302 is equidistantly installed with a number of linkage electric push rods 303, the bottom end of the linkage electric push rods 303 is connected with a linkage support plate 304, and one end of the integrated processing box 1 is fixed with an inner hole support block 305, and one end of the inner hole support block 305 is installed with a rotating motor 306 through a motor seat, and the output shaft of the rotating motor 306 is connected with a rotating alignment plate 307. One end of the alignment plate 307 is symmetrically connected to an alignment electric slide 308, and one end of the alignment electric slide 308 is installed with an operation display 309 through a slide rail seat. The top of the entry and exit alignment plate 302 is fixedly connected to the bottom end of the entry and exit processing box 209, the rotating alignment plate 307 is rotatably fitted with the inner hole support block 305, and the operation display 309 is slidably fitted with the rotating alignment plate 307. The use of multi-stage lifting alignment makes it easy to adjust the equipment according to the actual operating habits and actual operating conditions of the actual personnel, thereby improving the comfort of operation.

[0060] For stable operation of the equipment, the input ends of the in-and-out electric push rod 301, the linkage electric push rod 303, the rotating motor 306 and the alignment electric slide rail 308 are all electrically connected to the output end of the operation display 309;

[0061] The input terminal of the operation display 309 is electrically connected to the external power output.

[0062] The working principle and use process of the present invention are as follows: when it is necessary to conduct a resistivity test on a gravel pile, the staff will place the integrated processing box 1 on the operating table, and power the equipment through an external power supply. After the power supply is completed, the operation display 309 is started, and the operation display 309 is used to control the operation of various electrical appliances of the equipment. The linkage electric push rod 303 drives the linkage support plate 304 to move downward, and the integrated processing box 1 is lifted up. At the same time, the in-and-out electric push rod 301 drives the in-and-out alignment plate 302 to push the in-and-out processing box 2 into the inside of the integrated processing box 1. 09, and finally fit the in-and-out alignment plate 302 with the bottom end of the integrated processing box 1. At this time, the in-and-out processing box 209 is inserted into the position of the fixed electromagnetic ring 208 on the inner side of the processing coordination frame 201. The fixed electromagnetic ring 208 positions and engages the in-and-out processing box 209 to realize the connection of the equipment. By driving the linkage support plate 304 and the in-and-out processing box 209 to rise and fall, the internal crushed stones are quickly discharged, so that the continuous test can be operated quickly and the labor intensity and tediousness of the testers in taking and placing stones are reduced.

[0063] The rotary motor 306 drives the rotary alignment plate 307 to rotate along the inner hole support block 305, changing the angle between the rotary alignment plate 307 and the operation display 309. The alignment electric slide 308 drives the operation display 309 to move along the rotary alignment plate 307, changing the position of the operation display 309. The position of the operation display 309 is adjusted according to the operating habits, thereby improving the comfort of the operator during the test operation.

[0064] After the connection is completed, the closed sealing cover 222 is rotated to open, and the debris is poured into the top of the load-bearing support frame 211 at the top of the inlet and outlet processing box 209 along the isolation limit sleeve 215. After the input is completed, the closed sealing cover 222 is rotated again, and the sealing electromagnet 224 is used to seal the closed sealing cover 222 and the integrated processing box 1. After the sealing is completed, the electric heating plate 225 and the vacuum pump 221 can be started according to the type of stone to be tested, the stone environment and the application environment of the stone. The temperature of the environment is changed by the electric heating plate 225, and the air pressure of the environment is changed by the vacuum pump 221. The combination of the two can control the internal humidity, thereby adjusting the temperature, humidity and air pressure of the test environment;

[0065] After the adjustment is completed, the lifting electric slide rail 202 drives the U-shaped clamping strip 203 to move along the processing cooperation frame 201, the correction electric slide rail 204 drives the insulating sleeve box 205 to move along the U-shaped clamping strip 203, and the in-out electric slide rail 206 drives the in-out electrode 207 to move along the insulating sleeve box 205. The positions of the four groups of electrodes during the test are adjusted according to the test requirements. Using the four-electrode method, the resistivity is calculated by applying current and measuring voltage. The fixed electromagnet 217 magnetically fixes the isolation support plate 218 according to the required test position. The two-axis motor 216 drives the fixed electromagnet 217 and the isolation support plate 218 to rotate to open the in-out insertion hole 219, so that the in-out electrode 207 is inserted into the crushed stone pile along the in-out insertion hole 219, thereby measuring the resistivity. The vibration motor 212 drives the load-bearing support frame 211 to perform vibration compaction treatment on the crushed stone with the assistance of the vibration spring 210, the damper 213 and the sealing airbag 214, thereby further changing the state of the crushed stone pile, facilitating the measurement of the resistivity of the crushed stone pile under more different conditions, and ensuring the accuracy of the measurement result.

[0066] Finally, it should be noted that the above are only preferred examples of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for measuring the resistivity of a rubble pile for indoor testing, comprising an integrated processing box (1), characterized in that: Inside the integrated processing box (1), a multi-point measurement component (2) is provided; The multi-point measurement component (2) includes a processing cooperation frame (201); The processing cooperation frame (201) is clamped at the inner bottom end of the integrated processing box (1). A number of lifting electric slide rails (202) are equidistantly and symmetrically installed inside the processing cooperation frame (201). One end of the lifting electric slide rail (202) is connected to a U-shaped clamping strip (203) through a slide rail seat. One end of the U-shaped clamping strip (203) is clamped with a correction electric slide rail (204). One end of the correction electric slide rail (204) is installed with an insulating sleeve box (205) through a slide rail seat. Inside the insulating sleeve box (205), access electric slide rails (206) are symmetrically installed. One end of the access electric slide rail (206) is clamped with an access electrode (207) through a slide rail seat; At the inner top end of the processing cooperation frame (201), a fixed electromagnetic ring (208) is sleeved. The side end of the fixed electromagnetic ring (208) is magnetically connected to an access processing box (209). A number of vibration springs (210) are equidistantly installed at the inner bottom end of the access processing box (209). The top ends of the plurality of vibration springs (210) are clamped with a load-bearing support frame (211). The bottom end of the load-bearing support frame (211) is installed with a vibration motor (212) through a motor seat. A damper (213) is clamped between the load-bearing support frame (211) and the inner side of the access processing box (209). A sealing airbag (214) is adhesively bonded between the side end of the load-bearing support frame (211) and the access processing box (209); In the middle of the inner side of the integrated processing box (1), an isolation limit sleeve (215) is clamped. At the outer side end of the isolation limit sleeve (215), a double-shaft motor (216) is equidistantly installed through a motor seat. At the side end of the output shaft of the double-shaft motor (216), a fixed electromagnet (217) is clamped. One end of the fixed electromagnet (217) is magnetically connected to an isolation support plate (218). A number of access insertion holes (219) are equidistantly opened at the side end of the isolation limit sleeve (215).

2. The device for measuring resistivity of a gravel pile for indoor testing according to claim 1, characterized in that: One end of the integrated processing box (1) is connected through an external discharge pipe rack (220). At the position corresponding to the external discharge pipe rack (220) at one end of the integrated processing box (1), a vacuum pump (221) is installed through a motor seat. The top end of the integrated processing box (1) is hinged with a closing seal cover (222); A number of temperature and humidity detectors (223) are equidistantly installed at the top end of the closing seal cover (222). At the position corresponding to the closing seal cover (222) at the top end of the integrated processing box (1), a sealing electromagnet (224) is clamped. Electric heating plates (225) are embedded at both ends of the inner side of the isolation limit sleeve (215).

3. The device for measuring resistivity of a gravel pile for indoor testing according to claim 1, characterized in that: The U-shaped clamping strip (203) is slidably sleeved on the side end of the processing cooperation frame (201). The side end of the access electrode (207) is slidably attached to the insulating sleeve box (205). The insulating sleeve box (205) is slidably connected to the U-shaped clamping strip (203).

4. The device for measuring resistivity of a gravel pile for indoor testing according to claim 1, characterized in that: There are eight access electrodes (207) and insulating sleeve boxes (205). The access processing box (209) is placed in the middle of the inner side of the integrated processing box (1).

5. The device for measuring resistivity of a gravel pile for indoor testing according to claim 1, characterized in that: The load-bearing support frame (211) is placed inside the inlet and outlet processing box (209), and the top end of the inlet and outlet processing box (209) is sleeved and connected with the bottom end of the isolation limiting sleeve (215).

6. The device for measuring resistivity of a gravel pile for indoor testing according to claim 2, characterized in that: The isolation support plate (218) is rotatably embedded and installed inside the inlet and outlet insertion hole (219), and one end of the vacuum pump (221) is connected to one end of the outer row pipe rack (220) via an adapter.

7. The device for measuring resistivity of a gravel pile for indoor testing according to claim 2, characterized in that: The sealing electromagnet (224) is magnetically connected to the closed sealing cover (222); The input ends of the lifting electric slide rail (202), the correction electric slide rail (204), the in-and-out electric slide rail (206), the in-and-out electrode (207), the fixed electromagnetic ring (208), the vibration motor (212), the double-axis motor (216), the fixed electromagnet (217), the vacuum pump (221), the temperature and humidity detector (223), the sealing electromagnet (224) and the electric heating plate (225) are all electrically connected to the output end of the external controller; The signal output ends of the input and output electrodes (207) and the temperature and humidity detector (223) are electrically connected to the signal input end of the external controller; The input end of the external controller is electrically connected to the output end of the external power supply.

8. The device for measuring resistivity of a gravel pile for indoor testing according to claim 7, characterized in that: A linkage assembly (3) is provided at the side end of the integrated processing box (1); The linkage assembly (3) comprises an in-and-out electric push rod (301); A plurality of in-and-out electric push rods (301) are equidistantly connected to the bottom inner side of the integrated processing box (1), an in-and-out alignment plate (302) is connected to the bottom end of the in-and-out electric push rods (301), a plurality of linkage electric push rods (303) are equidistantly installed on the top of the in-and-out alignment plate (302), a linkage support plate (304) is connected to the bottom end of the linkage electric push rods (303), an inner hole support block (305) is fixed to one end of the integrated processing box (1), a rotating motor (306) is installed to one end of the inner hole support block (305) through a motor seat, a rotating alignment plate (307) is connected to the output shaft of the rotating motor (306), an alignment electric slide rail (308) is symmetrically connected to one end of the rotating alignment plate (307), and an operation display (309) is installed to one end of the alignment electric slide rail (308) through a slide rail seat.

9. The device for measuring resistivity of a gravel pile for indoor testing according to claim 8, characterized in that: The top end of the in-and-out alignment plate (302) is fixedly connected to the bottom end of the in-and-out processing box (209), and the rotation alignment plate (307) is rotationally fitted with the inner hole support block (305).

10. The device for measuring resistivity of a gravel pile for indoor testing according to claim 8, characterized in that: The operation display (309) is slidably fitted with the rotation alignment plate (307); The input ends of the in-and-out electric push rod (301), the linkage electric push rod (303), the rotating motor (306) and the alignment electric slide rail (308) are all electrically connected to the output end of the operation display (309); The input end of the operation display (309) is electrically connected to the external power output.

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