A kind of multifunctional underwater geotechnical in-situ testing machine

Abstract

The present invention discloses a carry-on multifunctional underwater geotechnical in-situ testing machine, comprising an in-situ testing mechanism and a submersible carrying the in-situ testing mechanism, wherein the in-situ testing mechanism comprises a multi-head hydraulic arm and a mechanical arm, wherein the multi-head hydraulic arm is arranged at the front end of the mechanical arm, and the end of the mechanical arm is connected to a rotating device in the submersible, wherein the multi-head hydraulic arm is provided with a plurality of chambers loaded with different in-situ testing equipment and a hydraulic system, wherein each chamber is provided with a hydraulic clamping groove and a hydraulic clamp is arranged in the hydraulic clamping groove, and each in-situ testing equipment is clamped on the hydraulic clamp in the corresponding chamber. The carry-on multifunctional underwater geotechnical in-situ testing machine can conduct various geotechnical in-situ tests on underwater geotechnical bodies at a calibrated working depth, which can greatly improve the speed of underwater geotechnical in-situ testing and reduce the test cost of underwater geotechnical in-situ testing, and has a simple structure, diverse functions and is easy to operate.

Description

Technical Field

[0001] The invention relates to the technical field of geotechnical engineering in-situ testing, and in particular to a carry-on underwater multifunctional geotechnical in-situ testing machine. Background Art

[0002] With the large-scale construction of offshore marine resource development projects and offshore land development projects, in order to ensure the safety and stability of offshore structures, it is necessary to determine the foundation properties of offshore structures, that is, the engineering properties of marine rock and soil. Existing in-situ testing of underwater rock and soil generally relies on large underwater working platforms. These devices are relatively bulky. At the same time, the equipment deployment and installation process are all manual operations. In order to prevent the equipment above the foundation surface from breaking under the action of deadweight, water flow, etc., an equipment support tower with the same height as the water depth is often built on the underwater working platform. Using the above equipment to conduct in-situ testing of underwater rock and soil is labor-intensive, time-consuming, and very dangerous. Summary of the invention

[0003] The purpose of the present invention is to provide a carry-on underwater multifunctional geotechnical in-situ testing machine in response to the existing technical status, which can dive to a calibrated working depth to perform various geotechnical in-situ tests on underwater rock and soil bodies, thereby greatly improving the speed of underwater rock and soil in-situ testing and reducing the test cost of underwater rock and soil in-situ testing.

[0004] In order to achieve the above object, the present invention adopts the following technical scheme:

[0005] A carry-on underwater multifunctional geotechnical in-situ testing machine comprises an in-situ testing mechanism and a submersible carrying the in-situ testing mechanism, the in-situ testing mechanism comprises a multi-head hydraulic arm and a mechanical arm, the multi-head hydraulic arm is arranged at the front end of the mechanical arm, the end of the mechanical arm is connected to a rotating device in the submersible, the rotating device drives the mechanical arm to rotate to adjust the angle of the multi-head hydraulic arm, the multi-head hydraulic arm is provided with a plurality of chambers loaded with different in-situ testing equipment and a hydraulic system, each chamber is provided with a hydraulic clamping groove and a hydraulic clamp is provided in the hydraulic clamping groove, each in-situ testing equipment is clamped on the hydraulic clamp in its corresponding chamber, and the hydraulic system provides a power source for the hydraulic clamp to clamp and slide in the hydraulic clamping groove.

[0006] Furthermore, the in-situ testing equipment includes static penetration equipment, spiral plate loading equipment, and standard penetration equipment.

[0007] Furthermore, the static penetration test equipment includes a first force transmission rod and a static penetration test probe arranged at the front end of the first force transmission rod, and the first force transmission rod is clamped on a hydraulic clamp in the corresponding chamber.

[0008] Furthermore, the spiral plate loading device includes a low-speed rotating motor, a second force transmission rod, a force sensor, and a spiral pressure plate. The front end of the second force transmission rod is connected to the force sensor, the end of the second force transmission rod is connected to the main shaft of the low-speed rotating motor, and the spiral pressure plate is connected to the force sensor.

[0009] Furthermore, the standard penetration equipment includes an impact cylinder and a penetrator connected to each other, the impact cylinder is provided with a motor, and a bent rod piston, an impact block and an impactor are sequentially arranged in the impact cylinder, the output end of the motor is connected to the bent rod piston, a sealing ring is provided between the impactor and the impact cylinder, the front end of the penetrator is provided with a penetration air boot with an inner diameter the same as the outer diameter of the front end body of the penetrator, and the end of the penetrator is provided with a sounding rod.

[0010] Furthermore, the penetrator body is composed of two semicircular tubes, and a plurality of water outlet holes are arranged on the penetrator body.

[0011] Furthermore, it also includes a data collector, which is connected to the in-situ testing equipment in each chamber through a data acquisition cable.

[0012] Furthermore, the data collector is arranged in the submersible.

[0013] Furthermore, the submersible is a manned submersible or an underwater robot.

[0014] Furthermore, the submersible is provided with a leveling device to ensure the effective implementation of the in-situ test of the rock and soil. The beneficial effects of the present invention are:

[0015] The mounted multifunctional underwater geotechnical in-situ testing machine can conduct various geotechnical in-situ tests on underwater rock and soil at a calibrated working depth, which can greatly improve the speed of underwater geotechnical in-situ testing and reduce the test cost of underwater geotechnical in-situ testing. It has a simple structure, diverse functions and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attached Figure 1 It is a structural schematic diagram of the present invention;

[0017] Attached Figure 2 It is a structural schematic diagram of the multi-head hydraulic arm of the present invention;

[0018] Attached Figure 3 It is a structural schematic diagram of the static penetration device of the present invention;

[0019] Attached Figure 4 It is a structural schematic diagram of the spiral plate loading device of the present invention;

[0020] Attached Figure 5 It is a schematic diagram of the structure of the standard penetration device of the present invention.

[0021] Label instructions: 1. Submersible, 2. Multi-head hydraulic arm, 3. Mechanical arm, 4. Chamber, 5. Hydraulic clamping groove, 6. Hydraulic clamp, 7. Leveling device, 8. First force transmission rod, 9. Static sounding probe, 10. Data acquisition cable, 11. Data collector, 12. Low-speed rotating motor, 13. Second force transmission rod, 14. Force sensor, 15. Spiral pressure plate, 16. Impact cylinder, 17. Motor, 18. Crank rod piston, 19. Impact block, 20. Impactor, 21. Sounding rod, 22. Water outlet, 23. Penetrator, 24. Penetration air boot. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] See also Figure 1 As shown, a carry-on underwater multifunctional geotechnical in-situ testing machine includes an in-situ testing mechanism and a submersible 1 carrying the in-situ testing mechanism. The in-situ testing mechanism includes a multi-head hydraulic arm 2 and a mechanical arm 3. The multi-head hydraulic arm 2 is arranged at the front end of the mechanical arm 3. The end of the mechanical arm 3 is connected to a rotating device in the submersible 1. The rotating device drives the mechanical arm 3 to rotate to adjust the angle of the multi-head hydraulic arm 2. The multi-head hydraulic arm 2 is provided with a plurality of chambers 4 loaded with different in-situ testing equipment and a hydraulic system. Each chamber 4 is provided with a hydraulic clamping groove 5 and a hydraulic clamp 6 is provided in the hydraulic clamping groove 5. Each in-situ testing equipment is clamped on the hydraulic clamp 6 in the corresponding chamber 4. The hydraulic system provides a power source for the hydraulic clamp 6 to clamp and slide in the hydraulic clamping groove 5.

[0024] See also Figure 2 As shown, there are three chambers 4 in the multi-head hydraulic arm 2. The in-situ test equipment includes a static penetration device, a spiral plate loading device, and a standard penetration device, which are respectively arranged in the three chambers 4 of the multi-head hydraulic arm 2.

[0025] See also Figure 3 As shown, the static penetration equipment includes a first force transmission rod 8 and a static penetration probe 9 arranged at the front end of the first force transmission rod 8, and the first force transmission rod 8 is clamped on the hydraulic clamp 6 in the corresponding chamber 4. The static penetration probe 9 can be replaced with different probes to perform multifunctional static penetration, including the measurement and recording of cone tip resistance, cone side resistance, temperature, conductivity, inclinometer, geomagnetism, resistivity and other data.

[0026] See also Figure 4As shown, the spiral plate loading device includes a low-speed rotating motor 12, a second force transmission rod 13, a force sensor 14, and a spiral pressure plate 15. The front end of the second force transmission rod 13 is connected to the force sensor 14, the rear end of the second force transmission rod 13 is connected to the main shaft of the low-speed rotating motor 12, and the spiral pressure plate 15 is connected to the force sensor 14.

[0027] See also Figure 5 As shown, the standard penetration equipment includes an impact cylinder 16 and a penetrator 23 connected to each other, the impact cylinder 16 is provided with a motor 17, the impact cylinder 16 is provided with a crank piston 18, an impact block 19 and an impactor 20 in sequence, the output end of the motor 17 is connected to the crank piston 18, a sealing ring is provided between the impactor 20 and the impact cylinder 16, the front end of the penetrator 23 is provided with a penetration air boot 24 with an inner diameter the same as the outer diameter of the front end of the penetrator 23, and the end of the penetrator 23 is provided with a sounding rod 21. The penetrator 23 body is composed of two semicircular tubes, and the penetrator 23 body is provided with a plurality of water outlet holes 22.

[0028] The submersible 1 also includes a data collector 11, which is connected to the in-situ test equipment in each chamber 4 through a data acquisition cable 10, and is used to collect data measured by the in-situ test equipment. Preferably, the data collector 11 is arranged in the submersible 1.

[0029] The submersible 1 is a manned submersible or an underwater robot. The submersible 1 can receive instructions to reach a designated test point. The submersible 1 is provided with a leveling device 7 to ensure the effective implementation of the rock and soil in-situ test. Specifically, the leveling device 7 is a drilling rig with a drill bit, and the drill bit drills into the underground rock and soil to ensure the stability of the submersible 1.

[0030] During the static penetration test, the hydraulic clamp 6 in the chamber 4 corresponding to the static penetration equipment in the multi-head hydraulic arm 2 is opened. The hydraulic clamp 6 clamps the first force transmission rod 8 and moves downward along the hydraulic clamping groove 5 to penetrate the static penetration equipment into the seabed rock and soil and reach the penetration depth required for the test. During the penetration process, the data collector 11 measures and records the resistance encountered by the static penetration probe 9 in real time.

[0031] During the spiral plate load test, the hydraulic clamp 6 and the low-speed rotating motor 12 in the chamber 4 corresponding to the spiral plate load device in the multi-head hydraulic arm 2 are turned on. The low-speed rotating motor 12 drives the spiral pressure plate 15 to rotate at a low speed through the second force transmission rod 13. At the same time, the hydraulic clamp 6 clamps the spiral pressure device and moves downward. The spiral pressure test equipment realizes slow downward drilling until it reaches the required depth for the test. The hydraulic system is pressurized according to the test needs, and the force sensor 14 transmits the data back to the data collector 11 for measurement and recording through the data acquisition cable 10.

[0032] During the standard penetration test, the hydraulic clamp 6 in the chamber 4 corresponding to the standard penetration device in the multi-head hydraulic arm 2 is turned on, and the hydraulic clamp 6 clamps the standard penetration device to penetrate the surface of the rock and soil body, and the motor 17 is turned on. The motor 17 drives the connecting rod piston 18 to make a piston movement, and the connecting rod piston 18 compresses the air in the impact cylinder 16 to generate air pressure to impact the impact block 19, and the impact block 19 then impacts the impact 20, and the impact 20 hits the sounding rod 21. At this time, the hydraulic clamp 6 cancels the clamping of the standard penetration device, and the penetrator 23 receives the impact and penetrates into the rock and soil body. After completing the standard penetration test, the hydraulic clamp 6 clamps the penetrator 23 and retracts it into the chamber 4 corresponding to the standard penetration device, and the test is over.

[0033] It should be pointed out that the standards adopted in the standard penetration test here should be distinguished from the standards adopted on land, and the standards corresponding to the standard penetration test on land can be determined based on the pressure of the impact cylinder 16 and the mass of the impact block 19 and the impactor 20.

[0034] Of course, the above are only preferred embodiments of the present invention, and are not intended to limit the scope of use of the present invention. Therefore, any equivalent changes made to the principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multifunctional underwater geotechnical in-situ testing machine, characterized in that: It comprises an in-situ testing mechanism and a submersible equipped with the in-situ testing mechanism, wherein the in-situ testing mechanism comprises a multi-head hydraulic arm and a mechanical arm, wherein the multi-head hydraulic arm is arranged at the front end of the mechanical arm, and the rear end of the mechanical arm is connected to a rotating device in the submersible, and the rotating device drives the mechanical arm to rotate to adjust the angle of the multi-head hydraulic arm, wherein the multi-head hydraulic arm is provided with a plurality of chambers loaded with different in-situ testing equipment and a hydraulic system, wherein each chamber is provided with a hydraulic clamping groove and a hydraulic clamp is arranged in the hydraulic clamping groove, wherein each in-situ testing equipment is clamped on the hydraulic clamp in the corresponding chamber, and the hydraulic system provides a power source for the hydraulic clamp to clamp and slide in the hydraulic clamping groove; The in-situ testing equipment includes static penetration equipment, spiral plate loading equipment, and standard penetration equipment; The static penetration test equipment comprises a first force transmission rod and a static penetration test probe arranged at the front end of the first force transmission rod, wherein the first force transmission rod is clamped on a hydraulic clamp in a chamber corresponding to the first force transmission rod; The spiral plate loading device comprises a low-speed rotating motor, a second force transmission rod, a force sensor, and a spiral pressure plate, wherein the front end of the second force transmission rod is connected to the force sensor, the rear end of the second force transmission rod is connected to the main shaft of the low-speed rotating motor, and the spiral pressure plate is connected to the force sensor; The standard penetration equipment includes an impact cylinder and a penetrator connected to each other, wherein the impact cylinder is provided with a motor, and a bent rod piston, an impact block and an impactor are sequentially arranged in the impact cylinder, the output end of the motor is connected to the bent rod piston, and a sealing ring is arranged between the impactor and the impact cylinder, the front end of the penetrator is provided with a penetration air boot with an inner diameter the same as the outer diameter of the front end body of the penetrator, and the end of the penetrator is provided with a sounding rod.

2. The multifunctional underwater geotechnical in-situ testing machine according to claim 1, characterized in that: The penetrator body is composed of two semicircular tubes and is provided with a plurality of water outlet holes.

3. The multifunctional underwater geotechnical in-situ testing machine according to claim 1 is characterized in that: The device also comprises a data collector, which is connected with the in-situ testing equipment in each chamber through a data collection cable.

4. The multifunctional underwater geotechnical in-situ testing machine according to claim 3 is characterized by: The data collector is arranged in the submersible.

5. The multifunctional underwater geotechnical in-situ testing machine according to claim 1 or 3, characterized in that: The submersible is a manned submersible or an underwater robot.

6. The multifunctional underwater geotechnical in-situ testing machine according to claim 5 is characterized by: The submersible is provided with a leveling device to ensure effective implementation of the rock and soil in-situ test.

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