Multifunctional Static Cone Penetration System and its Usage

Abstract

This invention relates to civil engineering equipment, and particularly to a multifunctional static cone penetration test system and its method of use. It includes a correction mechanism comprising a lower cylinder located at the lower end of the probe, a motor, a drive gear, a support frame, a transmission assembly, and a telescopic rod assembly. The motor is located within the lower cylinder, and the output shaft is equipped with the drive gear. The support frame comprises an inner frame and an outer frame, which are fitted together. Multiple transmission assemblies are located between the inner and outer frames and are driven by the drive gear. The telescopic rod assembly includes a transmission rod, a telescopic sleeve, and a guide rod. The transmission rod is radially arranged, with its inner end penetrating the support frame. The transmission rod is driven by the transmission assembly. The telescopic sleeve is threadedly connected to the transmission rod, and its outer end penetrates the lower cylinder. The guide rod is slidably connected to the guide hole of the telescopic sleeve, and its inner end is fixedly connected to the outer frame. This invention prevents the probe from deviating during penetration, improves construction efficiency, prevents equipment malfunctions, and reduces maintenance costs.

Description

Technical Field

[0001] This invention relates to civil engineering equipment, and in particular to a multifunctional static cone penetration test system and its method of use. Background Technology

[0002] Currently, land, as a non-renewable resource, faces increasingly prominent environmental pressures. Understanding the types and concentrations of pollutants and soil types at a site is therefore crucial. Traditional static cone penetration testing (CPPT) equipment provides limited data, is complex to operate, and exhibits significant data dispersion. It cannot simultaneously collect, remotely control, store, and analyze the site's pollution level and thermophysical parameters. Furthermore, during the probe's descent, encountering gravel in complex geological structures or strata can cause it to tilt. If this tilting is not corrected promptly, it can lead to accidents. Manually straightening the probe or repositioning it is time-consuming and labor-intensive. Summary of the Invention

[0003] The present invention aims to solve the above-mentioned technical problems, thereby providing a multifunctional static cone penetration test system that automatically straightens the probe when it tilts during the downward probe process, thereby improving work efficiency.

[0004] The technical solution adopted by this invention to solve its technical problem is as follows: A multifunctional static cone penetration testing system includes a data detection device, a digital-to-analog converter, a remote data acquisition device, and a host computer. The data detection device includes a penetration device, a probe rod, and a probe. It also includes a correction mechanism, which includes a lower cylinder located at the lower end of the probe, a motor, a drive gear, a support frame, a transmission assembly, and a telescopic rod assembly. The motor is located inside the lower cylinder and the output shaft is equipped with a drive gear. The support frame includes an inner frame and an outer frame, and multiple transmission components are placed between the inner frame and the outer frame and are driven by a drive gear. The telescopic rod assembly includes a transmission rod, a telescopic sleeve, and a guide rod. The transmission rod is radially arranged and its inner end passes through the support frame. The transmission rod is driven by a transmission assembly. The telescopic sleeve is threadedly connected to the transmission rod and its outer end passes through the lower cylinder. The guide rod is slidably connected to the guide hole of the telescopic sleeve and its inner end is fixedly connected to the outer frame.

[0005] The above-mentioned multifunctional static cone penetration test system shall be used in accordance with the following steps: A) Install the penetration device The reaction frame, spiral anchor, hydraulic pipe and power unit will be assembled according to the site conditions; B) Power connection of the penetration device The power unit is connected to the helical anchor via hydraulic lines; C) Inserting a spiral anchor The operator holds the drilling equipment on the top of the spiral anchor to provide drilling reaction force for the spiral anchor. Following this procedure, four spiral anchors are driven into the ground to a depth of 2 meters. The penetration reaction frame and spiral anchors are then installed and fixed through the fixed crossbeam and adjusted to be level. D) Assemble the penetration device Connect the power unit to the penetration reaction frame, assemble the probe rod according to the required length, connect the probe to the penetration reaction frame, install the displacement sensor on the penetration reaction frame, and connect the data line inside the probe to the digital-to-analog converter through the hollow shaft of the probe rod. Then connect the digital-to-analog converter to the remote data acquisition device, and lock the traction line on the displacement sensor at the probe position to measure the penetration depth. E) Debugging of host computer digital display Calibrate the displacement readings, pressure readings, resistivity readings, and thermal property parameter readings on the host computer; F) Start the pressure measurement module The probe is driven in, the power unit is started, and the probe is slowly driven into the predetermined depth according to the reading of the upper displacement sensor on the host computer. The verticality of the drilling is continuously corrected using an inclinometer. During the drilling process, if the probe rod deviates in a certain direction, the motor is started and the thrust element in that direction is operated to make the drive gear in that direction engage with the transmission disk. The motor drives the transmission rod to rotate through the drive gear and the driven gear. The transmission rod drives the telescopic sleeve to extend. The thrust element is operated to reset, the driven gear separates from the transmission disk, the transmission rod stops rotating, and the drilling continues. The telescopic sleeve provides a torque in the opposite direction of the probe rod's tilt, which makes the probe rod return to the correct position. The pressure measurement module measures the side friction resistance, cone tip resistance, and pore water pressure curves at different depths during the drilling process. When stationary at a certain depth, the dissipation curve of excess pore water pressure over time can be obtained. G) Start the resistivity measurement module Resistivity is measured using a resistivity measurement module. The resistivity measurement uses a copper ring-type potentiometric metal ring, with each ring copper sheet connected to a resistivity test sensor. H) Start the heat conduction measurement module Connect the heating plate to the heating power supply, control the working voltage of the heating plate to 220V, heat the heating plate to the set temperature, monitor the soil temperature change over time in real time through the temperature sensor, and invert the thermal properties of the soil based on the temperature heat source theory. The collected data is converted and standardized by a digital-to-analog converter, and then transmitted to the host computer and cloud server through a remote data acquisition device.

[0006] Compared with the prior art, the present invention, which adopts the above technical solution, has the following beneficial effects: During probe insertion, if the probe rod deviates in one direction, the motor is started, and the thrust element in that direction is operated. This engages the drive gear with the transmission disc, and the motor drives the transmission rod to rotate via the drive and driven gears. The transmission rod then extends the telescopic sleeve. The thrust element is then reset, the driven gear disengages from the transmission disc, and the transmission rod stops rotating. As the probe inserts, the telescopic sleeve provides a torque in the opposite direction to the probe rod's tilt, which returns the probe rod to its upright position. Once the probe rod is upright, the motor rotates in the opposite direction, returning the transmission rod to its original position. This improves construction efficiency, prevents equipment malfunctions, and reduces maintenance costs.

[0007] Furthermore, the optimized solution of the present invention is: The inner end of the transmission rod has a stepped shaft structure.

[0008] The transmission assembly includes a driven gear, a transmission disc, a U-shaped fork, and a thrust element. The driven gear is mounted on the shaft head of the transmission rod and rotatably connected to the shaft head. The driven gear has an inner protrusion and an outer protrusion at both ends. The outer circumferential surface of the inner protrusion has an annular groove. The U-shaped fork mates with the annular groove and is mounted on the thrust element. The thrust element is mounted on a support frame. The end face of the outer protrusion of the driven gear has a tooth structure. The transmission disc is mounted on the journal of the transmission rod and keyed to the journal. The inner end face of the transmission disc has a tooth groove structure that mates with the tooth structure.

[0009] The thrust element is an electric push rod, a pneumatic cylinder, or a hydraulic cylinder.

[0010] The driving gear is a bevel gear.

[0011] The driven gear is a bevel gear.

[0012] The support frame shown is a regular polygon, and an L-shaped connecting plate is provided between the inner frame and the outer frame.

[0013] Shaft retaining rings are provided between the transmission rod and the inner side of the inner frame, and between the transmission rod and the outer side of the outer frame.

[0014] The transmission rod inside the transmission disc is fitted with a shaft retaining ring. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the longitudinal section structure of the probe according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the heat conduction measurement module according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the correction mechanism according to an embodiment of the present invention; Figure 5 for Figure 4AA section view; Figure 6 for Figure 5 BB cross-sectional view; Figure 7 This is a schematic diagram of the telescopic rod assembly, transmission assembly, and support frame of the correction mechanism according to an embodiment of the present invention. Figure 8 This is a schematic diagram of the telescopic rod assembly and transmission assembly of the correction mechanism according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the transmission components of the correction mechanism according to an embodiment of the present invention; Figure 10 This is a schematic diagram of a regular octagonal support frame structure according to an embodiment of the present invention.

[0016] In the diagram: 1. Data detection device; 2. Analog-to-digital converter; 3. Remote data acquisition device; 4. Host computer; 5. Penetration device; 6. Probe; 7. Thermal conductivity measurement module; 8. Resistivity measurement module; 9. Pressure measurement module; 10. First metal shell; 11. Heating plate; 12. Thermal insulation filling material; 13. First hollow metal shaft; 14. Temperature sensor; 15. Second metal shell; 16. Resistivity test sensor; 17. Metal ring; 18. Second hollow metal shaft; 19. Friction cylinder; 20. Conical probe; 21. Power unit; 22. Hydraulic pipe; 23. Penetration reaction frame; 24. Fixed crossbeam; 25. 26. Spiral ground anchor; 27. Penetration caliper; 28. Cloud server; 29. ​​Mobile terminal; 30. Pore water pressure measuring sensor; 31. Displacement sensor; 32. Correction mechanism; 321. Lower cylinder; 3211. Support; 322. Motor; 323. Drive gear; 324. Support frame; 3241. Inner frame; 3242. Outer frame; 3243. Connecting plate; 3243. Telescopic rod assembly; 325. Transmission rod; 3251. Telescopic sleeve; 3252. Guide rod; 3253. Transmission assembly; 326. Driven gear; 3261. Transmission disc; 3262. U-shaped fork; 3263. Thrust element; 3264. Sleeve; 33. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0018] See Figures 1-3This embodiment provides a multifunctional static cone penetration testing system, mainly composed of a data detection device 1, a digital-to-analog converter 2, a remote data acquisition device 3, and a host computer 4. The data detection device 1 mainly consists of a penetration device 5, a probe rod 6, and a probe 7. The probe 7 is connected to the penetration device 5 via the probe rod 6. The probe 7 mainly consists of a thermal conductivity measurement module 8, a resistivity measurement module 9, a pressure measurement module 10, and a correction mechanism 32, which are connected sequentially from top to bottom. The pressure measurement module 10, resistivity measurement module 9, and thermal conductivity measurement module 8 are electrically connected to the digital-to-analog converter 2, the digital-to-analog converter 2 is electrically connected to the remote data acquisition device 3, and the remote data acquisition device 3 is communicatively connected to the host computer 4.

[0019] The heat conduction measurement module 8 mainly consists of a first metal shell 11, a heating plate 12, a heat insulation filling material 13, and a first hollow metal shaft 14. Inside the first metal shell 11, from the outside in, the heating plate 12, the heat insulation filling material 13, and the first hollow metal shaft 14 penetrating the first metal shell 11 are arranged sequentially. A temperature sensor 15 is installed at the contact point between the heating plate 12 and the heat insulation filling material 13. The heating plate 12 is electrically connected to the host computer 4, and the temperature sensor 15 is electrically connected to the digital-to-analog converter 2. In this embodiment, there are four temperature sensors 15, arranged in a ring array on the inner wall of the first metal shell 11. The host computer 4 is equipped with a DC regulated power supply, which supplies power to the heating plate 12. The first metal shell 11 is made of nickel-chromium alloy, and the heating plate 12 is a mica heating plate.

[0020] The resistivity measurement module 9 mainly consists of a second metal housing 16, a resistivity test sensor 17, metal rings 18, and a second hollow metal shaft 19. The resistivity test sensor 17 is installed inside the second metal housing 16. Metal rings 18 are spaced apart from top to bottom on the inner wall of the second metal housing 16. The second hollow metal shaft 19 passes through the second metal housing 16. The metal rings 18 are insulated from each other. Each probe of the resistivity test sensor 17 is connected to one metal ring 18. The resistivity test sensor 17 is electrically connected to the digital-to-analog converter 2. In this embodiment, there are three metal rings 18 and two resistivity test sensors 17. The three probes on the resistivity test sensor 17 are connected to different metal rings 18.

[0021] The pressure measurement module 10 mainly consists of a friction cylinder 20 and a cone tip probe 21. The friction cylinder 20 is used to measure the side friction resistance, and the cone tip probe 21 is used to test the cone tip resistance. The friction cylinder 20 and the cone tip probe 21 are electrically connected to the digital-to-analog converter 2.

[0022] A correction mechanism 32 is installed between the friction cylinder 20 and the cone tip probe 21. Figures 4-9As shown, the correction mechanism 32 mainly consists of a lower cylinder 321, a motor 322, a drive gear 323, a support frame 324, a telescopic rod assembly 325, and a transmission assembly 326. The motor 322 is vertically installed inside the lower cylinder 321 and is connected to the lower cylinder 321 via a bracket 3211. The output shaft of the motor 322 has a hollow structure, and the wiring or conduit passes through the output shaft of the motor 322. The drive gear 323 is mounted on the output shaft of the motor 322 and is a disc bevel gear.

[0023] The support frame 324 is installed inside the lower cylinder 321 below the drive gear 323. The support frame 324 is mainly composed of an inner frame 3241, an outer frame 3242 and a connecting plate 3243. The inner frame 3241 and the outer frame 3242 are fitted together. The inner frame 3241 and the outer frame 3242 are square. A connecting plate 3243 is welded between the bottom of the inner frame 3241 and the outer frame 3242. The connecting plate 3243 is L-shaped and is connected to the inner wall of the lower cylinder 321 by bolts.

[0024] Each side of the support frame 324 is equipped with a telescopic rod assembly 325. The telescopic rod assembly 325 mainly consists of a transmission rod 3251, a telescopic sleeve 3252, and a guide rod 3253. The inner end of the transmission rod 3251 has a stepped shaft structure. The transmission rod 3251 is radially arranged, and its inner end penetrates the inner frame body 3241 and the outer frame body 3242 of the support frame 324. Shaft retaining rings are installed between the transmission rod 3251 and the inner side of the inner frame body 3241, and between the transmission rod 3251 and the outer side of the outer frame body 3242, respectively. Bearing seats can also be installed. The rod body of the transmission rod 3251 is threaded. The telescopic sleeve 3252 is fitted onto the rod body of the transmission rod 3251, and the telescopic sleeve 3252 is threadedly connected to the transmission rod 3251. The outer end of the telescopic sleeve 3252 is a closed structure and penetrates the cylinder wall of the lower cylinder 321. A sealing ring is installed between the lower cylinder 321 and the telescopic sleeve 3252. The telescopic sleeve 3252 has four axial guide holes on its cylindrical wall. The guide rod 3253 is slidably connected to the guide holes of the telescopic sleeve 3252. The inner end of the guide rod 3253 is threadedly connected to the outer frame 3242. A locking nut is installed on the inner end of the guide rod 3253.

[0025] The transmission rod 3251 is driven by the transmission assembly 326. The transmission assembly 326 mainly consists of a driven gear 3261, a transmission disc 3262, a U-shaped fork 3263, and a thrust element 3264. The driven gear 3261 is a bevel gear, which is fitted onto the shaft head of the transmission rod 3251 and rotatably connected to the shaft head. The driven gear 3261 has an inner protrusion and an outer protrusion at both ends. The end face of the outer protrusion of the driven gear 3261 has a tooth structure, which is radially arranged. The outer circumferential surface of the inner protrusion has an annular groove. The U-shaped fork 3263 cooperates with the annular groove and is mounted on the thrust element 3264. The thrust element 3264 is mounted on the connecting plate 3243 of the support frame 324. The thrust element 3264 can be an electric push rod, a cylinder, or a hydraulic cylinder. The transmission disc 3262 is mounted on the journal of the transmission rod 3251 and is keyed to the journal. A retaining ring for the shaft is installed on the transmission rod 3251 inside the transmission disc 3262. The inner end face of the transmission disc 3262 is provided with a tooth groove structure that mates with the tooth structure of the driven gear 3261.

[0026] The thrust element 3264 drives the driven gear 3261 to move axially through the U-shaped fork 3263. The tooth structure of the driven gear 3261 meshes with the tooth groove structure of the transmission disk 3262, thereby driving the transmission disk 3262 to rotate. The transmission disk 3262 drives the transmission rod 3251 to rotate, and the transmission rod 3251 drives the telescopic sleeve 3252 to extend outward.

[0027] The first metal shell 11 and the second metal shell 16 can be hollow metal cylinders with an outer diameter of 3.5 cm and an inner diameter of 3.1 cm. The height of the heat conduction measuring module 8 is 80 cm, the height of the resistivity measuring module 9 is 30 cm, and the height of the pressure measuring module 10 is 30 cm. The first metal shell 11, the second metal shell 16, and the friction cylinder 20 are connected by threads.

[0028] The penetration device 5 mainly consists of a power unit 22, a hydraulic pipe 23, a penetration reaction frame 24, a fixed crossbeam 25, a spiral ground anchor 26, and a penetration clamp 27. One end of the probe 6 is fixed inside the penetration clamp 27, and the other end is connected to the probe 7. The probe 6 and the probe 7 can be connected by a sleeve 33. The penetration device 5 is a commonly used reaction device in building pile driving tools, and its specific structure will not be described in detail here. A displacement sensor 31 is installed on the penetration reaction frame 24, and the displacement sensor 31 is connected to the remote data acquisition device 3.

[0029] The multifunctional static cone penetration test system also includes a cloud server 28 and a mobile terminal 29. The cloud server 28 is communicatively connected to the remote data acquisition device 3, and the mobile terminal 29 is communicatively connected to the cloud server 28. The remote data acquisition device 3 communicates with the cloud server 28 via a network to realize data storage and analysis; users can log in to the cloud server 28 using the mobile terminal 29 to view data in real time.

[0030] A pore water pressure measuring sensor 30 is installed between the lower cylinder 321 and the cone tip probe 21. The pore water pressure measuring sensor 30 is electrically connected to the digital-to-analog converter 2.

[0031] The above-mentioned multifunctional static cone penetration test system shall be used in accordance with the following steps: A) Install the penetration device The reaction frame 24, spiral anchor 26, hydraulic pipe 23, and power unit 22 shall be placed in the designated positions according to the site conditions; B) Power connection of penetration device 5 Connect the power unit 22 to the spiral anchor 26 using hydraulic pipe 23; C) Inserting a spiral anchor The testers hold the drilling equipment on the top of the spiral anchor 26 to provide drilling reaction force for the spiral anchor 26. Following this procedure, the four spiral anchors 26 are driven into the ground to a depth of 2 meters. The penetration reaction frame 24 and the spiral anchors 26 are installed and fixed through the fixed crossbeam 25 and the level is adjusted. D) Assemble the penetration device Connect the power unit 22 to the penetration reaction frame 24, assemble the probe rod 6 according to the required length, connect the probe 7 to the penetration reaction frame 24, install the displacement sensor 31 on the penetration reaction frame 24, and connect the data line inside the probe 7 to the digital-to-analog converter 2 through the hollow shaft of the probe rod 6. Then connect the digital-to-analog converter 2 to the remote data acquisition device 3, and lock the traction line on the displacement sensor 31 to the probe 7 so as to measure the penetration depth. E) Debugging of the host computer 4 digital display: Calibrate the displacement reading, pressure reading, resistivity reading and thermal property parameter reading on the host computer 4; F) Start the pressure measurement module The probe 7 is driven in, and the power unit 22 is started. Based on the reading of the displacement sensor 31 on the host computer 4, the probe 7 is slowly driven into the predetermined depth, and the verticality of the drilling is continuously corrected using an inclinometer. During the downward movement, if the probe rod 6 deviates in a certain direction, the motor 322 is started, and the thrust element 3264 in that direction is operated, so that the drive gear 323 in that direction engages with the transmission disc 3262. The motor 322 drives the transmission rod 3251 to rotate through the drive gear 323 and the driven gear 3261, and the transmission rod 3251 drives the extension... The telescopic sleeve 3252 extends, the operating thrust element 3264 resets, the driven gear 3261 separates from the transmission disc 3262, the transmission rod 3251 stops rotating and continues to descend, the telescopic sleeve 3252 provides the probe rod 6 with a torque in the opposite direction of tilting, this torque makes the probe rod 6 return to center, and after the probe rod 6 returns to center, the telescopic sleeve 3252 resets; the pressure measuring module 10 measures the side friction resistance, cone tip resistance and pore water pressure curves at different depths during the driving process, and the excess pore water pressure dissipation curve over time can be obtained when it is stationary at a certain depth; G) Start the resistivity measurement module Resistivity is measured using resistivity measurement module 9. The resistivity measurement uses a copper ring-type potential measuring metal ring 18, and each ring copper sheet is connected to the resistivity test sensor 17. H) Start the heat conduction measurement module Connect the heating plate 12 to the heating power supply, control the working voltage of the heating plate 12 to 220V, heat the heating plate 12 to the set temperature, monitor the soil temperature change over time in real time through the temperature sensor 15, and invert the thermal physical parameters of the soil according to the temperature heat source theory. K) The collected data is converted and unified in data format by the digital-to-analog converter 2, and then transmitted to the host computer 4 and cloud server 28 through the remote data acquisition device 3.

[0032] During probe installation, the four sets of telescopic rod assemblies 325 of the correction mechanism are positioned in the east, south, west, and north directions, respectively. When the probe rod 6 tilts to the southeast, southwest, northeast, or northwest direction, two adjacent telescopic rod assemblies 325 extend simultaneously. For more precise correction, the support frame 324 can also be a regular octagon (…). Figure 10 (As shown).

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A multifunctional static cone penetration testing system, comprising a data detection device, a digital-to-analog converter, a remote data acquisition device, and a host computer, wherein the data detection device includes a penetration device, a probe rod, and a probe, characterized in that: It also includes a correction mechanism, which includes a lower cylinder located at the lower end of the probe, a motor, a drive gear, a support frame, a transmission assembly, and a telescopic rod assembly. The motor is located inside the lower cylinder and the output shaft is equipped with a drive gear. The support frame includes an inner frame and an outer frame, and multiple transmission components are placed between the inner frame and the outer frame and are driven by a drive gear. The telescopic rod assembly includes a transmission rod, a telescopic sleeve, and a guide rod. The transmission rod is radially arranged and its inner end passes through the support frame. The transmission rod is driven by a transmission assembly. The telescopic sleeve is threadedly connected to the transmission rod and its outer end passes through the lower cylinder. The guide rod is slidably connected to the guide hole of the telescopic sleeve and its inner end is fixedly connected to the outer frame.

2. The multifunctional static cone penetration test system according to claim 1, characterized in that: The inner end of the transmission rod has a stepped shaft structure.

3. The multifunctional static cone penetration test system according to claim 1, characterized in that: The transmission assembly includes a driven gear, a transmission disc, a U-shaped fork, and a thrust element. The driven gear is mounted on the shaft head of the transmission rod and rotatably connected to the shaft head. The driven gear has an inner protrusion and an outer protrusion at both ends. The outer circumferential surface of the inner protrusion has an annular groove. The U-shaped fork mates with the annular groove and is mounted on the thrust element. The thrust element is mounted on a support frame. The end face of the outer protrusion of the driven gear has a tooth structure. The transmission disc is mounted on the journal of the transmission rod and keyed to the journal. The inner end face of the transmission disc has a tooth groove structure that mates with the tooth structure.

4. The multifunctional static cone penetration test system according to claim 3 is characterized in that: The thrust element is an electric push rod, a pneumatic cylinder, or a hydraulic cylinder.

5. The multifunctional static cone penetration test system according to claim 1, characterized in that: The driving gear is a bevel gear.

6. The multifunctional static cone penetration test system according to claim 3, characterized in that: The driven gear is a bevel gear.

7. The multifunctional static cone penetration test system according to claim 1, characterized in that: The support frame shown is a regular polygon, and an L-shaped connecting plate is provided between the inner frame and the outer frame.

8. The multifunctional static cone penetration test system according to claim 1, characterized in that: Shaft retaining rings are provided between the transmission rod and the inner side of the inner frame, and between the transmission rod and the outer side of the outer frame.

9. The multifunctional static cone penetration test system according to claim 1, characterized in that: The transmission rod inside the transmission disc is fitted with a shaft retaining ring.

10. A method of using a multifunctional static cone penetration test system as described in any one of claims 1-9, comprising the following steps A) Install the penetration device The reaction frame, spiral anchor, hydraulic pipe and power unit will be assembled according to the site conditions; B) Power connection of the penetration device The power unit is connected to the helical anchor via hydraulic lines; C) Inserting a spiral anchor The operator holds the drilling equipment on the top of the spiral anchor to provide drilling reaction force for the spiral anchor. Following this procedure, four spiral anchors are driven into the ground to a depth of 2 meters. The penetration reaction frame and spiral anchors are then installed and fixed through the fixed crossbeam and adjusted to be level. D) Assemble the penetration device Connect the power unit to the penetration reaction frame, assemble the probe rod according to the required length, connect the probe to the penetration reaction frame, install the displacement sensor on the penetration reaction frame, and connect the data line inside the probe to the digital-to-analog converter through the hollow shaft of the probe rod. Then connect the digital-to-analog converter to the remote data acquisition device, and lock the traction line on the displacement sensor at the probe position to measure the penetration depth. E) Debugging of host computer digital display Calibrate the displacement readings, pressure readings, resistivity readings, and thermal property parameter readings on the host computer; F) Start the pressure measurement module Drive the probe in, start the power unit, and slowly drive the probe into the predetermined depth according to the reading of the upper displacement sensor on the host computer. Continuously use the inclinometer to correct the verticality of the drilling. During the drilling process, if the probe rod deviates in a certain direction, start the motor and operate the thrust element in that direction to engage the drive gear with the transmission disc. The motor drives the transmission rod to rotate through the drive gear and driven gear. The transmission rod drives the telescopic sleeve to extend. Operate the thrust element to reset, the driven gear separates from the transmission disc, the transmission rod stops rotating, and the drilling continues. The telescopic sleeve provides a torque in the opposite direction of the probe rod's tilt, which returns the probe rod to the correct position. The pressure measurement module measures the side friction, cone tip resistance and pore water pressure curves at different depths during the injection process. When stationary at a certain depth, the dissipation curve of excess pore water pressure over time can be obtained. G) Start the resistivity measurement module Resistivity is measured using a resistivity measurement module. The resistivity measurement uses a copper ring-type potentiometric metal ring, with each ring copper sheet connected to a resistivity test sensor. H) Start the heat conduction measurement module Connect the heating plate to the heating power supply, control the working voltage of the heating plate to 220V, heat the heating plate to the set temperature, monitor the soil temperature change over time in real time through the temperature sensor, and invert the thermal properties of the soil based on the temperature heat source theory. K) The collected data is converted and unified in data format by the digital-to-analog converter, and then transmitted to the host computer and cloud server through the remote data acquisition device.

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