A laying device and method for shallow stratum deformation monitoring cable

Abstract

The present invention discloses a deployment device and method for a shallow-stratum deformation monitoring cable, which relates to the technical field of deformation monitoring cable deployment. The device comprises a fixed frame fixedly connected to a CPT device and an auxiliary mechanism connected to the CPT device via a detachment mechanism. The fixed frame is equipped with a penetration mechanism for clamping and penetrating the deformation monitoring cable. The auxiliary mechanism comprises an electronic compartment and a battery compartment connected to the deformation monitoring cable. The deformation monitoring cable and the auxiliary mechanism are lowered to a predetermined position along with the CPT device. After the deformation monitoring cable penetrates the predetermined position through the penetration mechanism, it is separated from the CPT device. The auxiliary mechanism is separated from the CPT device via a detachment mechanism, and the deformation monitoring cable and the auxiliary mechanism remain in the predetermined position for in-situ monitoring. The present invention can use the CPT device to achieve precise positioning of the deployment position, and can separate the deployment device from the CPT device after the deformation monitoring cable is penetrated. The auxiliary mechanism is used to provide energy and operational support, so that the deployment device can be left in place for long-term in-situ monitoring.

Description

Technical Field

[0001] The present invention relates to the technical field of deformation monitoring cable laying, and in particular to a laying device and a laying method for a shallow stratum deformation monitoring cable. Background Art

[0002] As a new type of terrain monitoring tool, deformation monitoring cables have become a mainstream device for monitoring shallow marine formations in recent years due to their high sensitivity, long-term effectiveness, and excellent scalability. Currently, the most common method for deploying deformation monitoring cables is to control a manipulator mounted on an ROV. However, this method has problems such as difficult positioning, unstable penetration speed, and short penetration length.

[0003] For example, a Chinese patent with authorization announcement number CN114252049B discloses an ROV-based shallow seabed terrain deformation monitoring device, comprising a plurality of sensor units arranged in an array, each of which is flexibly connected in series via a connecting rod; a battery and a control acquisition circuit board are provided in the electronic compartment, each of which is connected to each sensor unit via a cable; a conical drill bit is connected to the connected sensor units and is located at the front end; the front end of the casing is open, the inner cavity is used to accommodate the sensor units and the electronic compartment, and a handle is provided at the rear end; the bottom surface of the conical drill bit is connected to the front end opening of the casing, and the conical drill bit can be fixed and unlocked at the front end of the casing by a restraining structure. This solution is based on the protection of the casing, and uses an ROV to penetrate the originally flexible monitoring device into the shallow seabed layer at a designated location. However, due to the use of an ROV for deployment, there are the aforementioned problems of difficult positioning, unstable penetration speed, and short penetration length.

[0004] The CPT (Cableless Cone Penetration Tester) is a common device for measuring soil engineering properties. It allows testing in the actual submarine soil environment, providing more realistic soil property parameters. However, it lacks the ability to deploy deformation-modulating cables and is not suitable for long-term submarine stays.

[0005] For example, a Chinese patent application with publication number CN114482000A discloses a seabed static penetration equipment based on real-time data transmission, including a frame and a probe rod. A cylinder column is provided inside the frame, and a probe rod storage for storing the probe rod is provided on the cylinder column. A probe is provided at one end of the probe rod passing through the frame, and the probe is connected to a data transmission cable. One end of the data transmission cable is connected to a cable arrangement mechanism, which can synchronously release the data transmission cable during the probe penetration process; a rotating connecting rod mechanism, which is provided at the top of the cylinder column and can dock multiple probe rods; a rod moving mechanism is provided on the cylinder column and can remove the probe rod from the probe rod storage; the static penetration equipment can complete the automatic docking and penetration of the probe rod, and the data information collected during the probe penetration process can be transmitted back to the computer in real time, realizing real-time data transmission and greatly simplifying the workflow of seabed exploration. This solution actually discloses a CPT device that can perform static penetration, but cannot perform long-term in-situ monitoring after the deformation monitoring cable is deployed. Summary of the Invention

[0006] The purpose of the present invention is to provide a deployment device and deployment method for a shallow-sediment deformation monitoring cable to solve the problems existing in the above-mentioned prior art. The deployment device is lowered together with the CPT device, and the CPT device can be used to accurately locate the deployment position. After the deformation monitoring cable is penetrated, the deployment device and the CPT device can be separated. Auxiliary mechanisms are used to provide energy and operational support, so that the deployment device can be left in place for long-term in-situ monitoring.

[0007] To achieve the above object, the present invention provides the following solutions:

[0008] The present invention provides a deployment device for a shallow formation deformation monitoring cable, comprising a fixing frame fixedly connected to a CPT device and an auxiliary mechanism connected to the CPT device via a detachment mechanism. The fixing frame is equipped with a penetration mechanism for clamping and penetrating the deformation monitoring cable. The auxiliary mechanism comprises an electronics compartment and a battery compartment connected to the deformation monitoring cable. The deformation monitoring cable and the auxiliary mechanism are lowered to a predetermined position along with the CPT device. After the deformation monitoring cable penetrates the predetermined position through the penetration mechanism, it is separated from the CPT device. The auxiliary mechanism is separated from the CPT device via the detachment mechanism, and the deformation monitoring cable and the auxiliary mechanism remain at the predetermined position for in-situ monitoring.

[0009] Preferably, the penetration mechanism includes a penetration cylinder and a clamping mechanism, the axial direction of the penetration cylinder is in the same direction as the penetration direction of the deformation monitoring cable, the fixed end of the penetration cylinder is connected to the fixed frame, and the movable end of the penetration cylinder is connected to the clamping mechanism, and the clamping mechanism is used to clamp the deformation monitoring cable during penetration.

[0010] Preferably, the clamping mechanism includes a clamping cylinder and a claw, the axial direction of the clamping cylinder is perpendicular to the penetration direction of the deformation monitoring cable, the fixed end of the clamping cylinder is connected to the movable end of the penetration cylinder, and the movable end of the clamping cylinder is connected to the claw, and the claws clamp the deformation monitoring cable when they approach each other.

[0011] Preferably, a slide is included, the slide is vertically connected to the fixed frame, and the movable end of the penetration cylinder and / or the fixed end of the clamping cylinder are slidably connected to the slide.

[0012] Preferably, the disengagement mechanism includes a first latch seat fixed on the auxiliary mechanism, a second latch seat fixed on the CPT device, and a latch rod for inserting into the latch holes on the first latch seat and the second latch seat to achieve locking, and also includes a disengagement cylinder, the fixed end of the disengagement cylinder is fixed on the CPT device, and the movable end of the disengagement cylinder is connected to the latch rod.

[0013] Preferably, a resistance-increasing bracket is included, wherein the resistance-increasing bracket is provided with a resistance-increasing opening for passing the deformation monitoring cable, and a rubber ring abutting against the deformation monitoring cable is provided in the resistance-increasing opening.

[0014] Preferably, the auxiliary mechanism includes a box body surrounded by a support plate, side plates and a top plate, the electronic compartment and the battery compartment are both located in the box body and mounted on the support plate, and the side plates and the top plate are grid plates.

[0015] Preferably, the box is flush with the bottom surface of the CPT device, and a winch is installed on the support plate, and the winch is used to retract the deformation monitoring cable.

[0016] The present invention also provides a method for deploying a shallow stratum deformation monitoring cable, comprising the following contents:

[0017] Clamp the deformation monitoring cable onto the penetration mechanism on the fixed frame and install the auxiliary mechanism on the CPT device;

[0018] Lowering the deformation monitoring cable and the auxiliary mechanism along with the CPT device to a predetermined position;

[0019] The deformation monitoring cable is penetrated into a predetermined position by the penetration mechanism and then separated from the CPT device;

[0020] separating the auxiliary mechanism from the CPT device via a disengagement mechanism;

[0021] The deformation monitoring cable and the auxiliary mechanism remain in a predetermined position for in-situ monitoring.

[0022] Preferably, when penetrating the deformation monitoring cable, the penetration mechanism:

[0023] S1. The clamping mechanism clamps the deformation monitoring cable, and the hydraulic cylinder pushes the clamping mechanism downward for a fixed distance, thereby driving the deformation monitoring cable downward for a fixed distance;

[0024] S2, the clamping mechanism releases the deformation monitoring cable, and the penetration cylinder drives the clamping mechanism to move upward and return to its original position;

[0025] Repeat steps S1 and S2 to complete the penetration of the deformation monitoring cable.

[0026] Compared with the prior art, the present invention has achieved the following technical effects:

[0027] (1) The present invention lowers the deployment device together with the CPT device, and can use the CPT device to accurately locate the deployment position. After the deformation monitoring cable is inserted, the deployment device and the CPT device are separated. Auxiliary mechanisms are used to provide energy and operation support, so that the deployment device can be left in place for long-term in-situ monitoring.

[0028] (2) After the deployment device is lowered, the deformation monitoring cable and the auxiliary mechanism are left at the predetermined position for in-situ monitoring, and the remaining structures are recovered with the CPT device. That is to say, the penetration cylinder, the clamping cylinder, and the disengagement cylinder can all be operated by hydraulic power, so that the penetration and clamping operations can be carried out with great force, ensuring rapid, strong and stable penetration. At the same time, the oil circuit control can be completed by the CPT device, and there is no need to set up an additional energy source on the deployment device, which reduces the cost of the deployment device and facilitates the re-deployment of the CPT device.

[0029] (3) The present invention limits the deformation monitoring cable by means of the resistance-increasing bracket, which can work together with the claws of the clamping mechanism to maintain the stability of the deformation monitoring cable during the lowering process, and prevent the deformation monitoring cable from moving or getting out of control due to factors such as water flow during the lowering process. At the same time, it can assist the slideway in maintaining the penetration direction of the deformation monitoring cable during penetration;

[0030] (4) The housing of the auxiliary mechanism of the present invention is flush with the bottom surface of the CPT device, which can ensure that the auxiliary mechanism is separated from the CPT device smoothly. In addition, a winch is installed on the support plate of the auxiliary mechanism, and the part of the deformation monitoring cable connected to the electronic compartment and the battery compartment can be recovered by the winch, so as to prevent the excess deformation monitoring cable in this part from being affected by water impact, deformation, etc. and affecting the normal operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 This is a schematic diagram of the overall structure of the deployment device of the present invention installed on the CPT device;

[0033] Figure 2 This is a schematic structural diagram of the deployment device of the present invention;

[0034] Figure 3 It is a schematic diagram of the auxiliary mechanism of the present invention;

[0035] Figure 4 This is a schematic diagram of the holding mechanism of the present invention;

[0036] Figure 5 This is a schematic diagram of the disengagement mechanism of the present invention;

[0037] Figure 6 It is a schematic diagram of the penetration mechanism of the present invention;

[0038] Figure 7 This is a schematic diagram of the resistance-increasing bracket of the present invention;

[0039] Among them, 1. Penetration mechanism; 2. Clamping mechanism; 3. Auxiliary mechanism; 4. First deformation monitoring cable; 5. CPT device; 6. Slide; 7. Resistance-increasing bracket; 8. Cable; 9. Disengagement mechanism; 10. Second deformation monitoring cable; 11. Crossbeam; 12. Grid plate; 13. Support plate; 14. First latch seat; 15. Winch; 16. Electronic compartment; 17. Battery compartment; 18. Clamping cylinder piston rod; 19. Claw; 20. Clamping cylinder; 21. Second latch seat; 22. Disengagement cylinder; 23. Latch rod; 24. Latch hole; 25. Penetration cylinder; 26. Penetration cylinder piston rod; 27. Triangular bracket. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] The purpose of the present invention is to provide a deployment device and deployment method for a shallow stratum deformation monitoring cable to solve the problems existing in the prior art. The deployment device is lowered together with the CPT device, and the CPT device can be used to accurately locate the deployment position. After the deformation monitoring cable is penetrated, the deployment device and the CPT device can be separated. Auxiliary mechanisms are used to provide energy and operation support, so that the deployment device can be left in place for long-term in-situ monitoring.

[0042] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] like Figures 1 to 7 As shown, the present invention provides a deployment device for shallow-sediment deformation monitoring cables, comprising a fixing frame fixedly connected to a CPT device 5 and an auxiliary mechanism 3 connected to the CPT device 5 via a release mechanism 9. The CPT device 5 is a cableless static penetration tester, a conventional device for measuring soil engineering properties, capable of being accurately lowered to a designated location on the seabed. The present invention utilizes the CPT device 5's ability to accurately reach a designated location and serve as a supporting structure, using the CPT device 5 to carry the deployment device to the desired location. The fixing frame, serving as a foundation connecting the CPT device 5 and the various structures of the deployment device, possesses load-bearing and secure capabilities. The fixing frame may include one or more crossbeams 11, which are mounted to the frame of the CPT device 5 using bolts or screws. Mounted on the fixing frame is a penetration mechanism 1 for clamping and inserting the deformation monitoring cable. The axis of the penetration mechanism 1 is perpendicular to the crossbeams 11. Furthermore, a support frame may be provided on the crossbeams 11 to secure the penetration mechanism 1 to its vertical position. The auxiliary mechanism 3 includes an electronic compartment 16 and a battery compartment 17 connected to the deformation monitoring cable. The electronic compartment 16 and the battery compartment 17 are used to provide energy and operational support for the deformation monitoring cable. The battery voltage in the battery compartment 17 is 12V, which can provide stable power supply during one penetration detection cycle. The deformation monitoring cable and the auxiliary mechanism 3 are lowered to the predetermined position along with the CPT device 5. After the deformation monitoring cable penetrates the predetermined position through the penetration mechanism 1, it is separated from the CPT device 5. The auxiliary mechanism 3 is separated from the CPT device 5 by the detachment mechanism 9, and the deformation monitoring cable and the auxiliary mechanism 3 remain at the predetermined position for in-situ monitoring. The CPT device 5 can be recovered by an ROV via a hook provided on its top. In summary, the present invention lowers the deployment device along with the CPT device 5, can use the CPT device 5 to achieve precise positioning of the deployment position, and can separate the deployment device from the CPT device 5 after the deformation monitoring cable is penetrated. The auxiliary mechanism 3 provides energy and operational support, so that the deployment device can be left in place for long-term in-situ monitoring. In addition, the laying device of the present invention can be recovered as a whole and used multiple times, which greatly reduces the cost of laying the deformation monitoring cable.

[0044] like Figure 6 As shown, the penetration mechanism 1 includes a penetration cylinder 25 and a clamping mechanism 2. The axial direction of the penetration cylinder 25 is aligned with the penetration direction of the deformation monitoring cable. This means that the expansion and contraction of the penetration cylinder 25 can apply force in the direction of the deformation monitoring cable's penetration. The fixed end of the penetration cylinder 25 is connected to a fixed frame, while the movable end of the penetration cylinder 25 is connected to the clamping mechanism 2. This means that the fixed end of the penetration cylinder 25 is stationary relative to the fixed frame and the CPT device 5. When the penetration cylinder piston rod 26 (i.e., the movable end of the penetration cylinder 25) of the penetration cylinder 25 expands and contracts, it drives the clamping mechanism 2 up and down. The clamping mechanism 2 can clamp the deformation monitoring cable, thereby driving it downward during penetration. By controlling the movement of the penetration cylinder 25 and the clamping cylinder 20, the penetration length can be controlled, making the penetration length adjustable, allowing the penetration depth of the deformation monitoring cable to be adjusted according to different terrains and monitoring targets. It should be noted that one or more sets of clamping mechanisms 2 can be provided, and each set of clamping mechanisms 2 is used to clamp one deformation monitoring cable. For example, two sets of clamping mechanisms 2 can be symmetrically provided on both sides of the penetration cylinder piston rod 26, respectively for clamping the first deformation monitoring cable 4 and the second deformation monitoring cable 10. The penetration process of different deformation monitoring cables is controlled by controlling whether the corresponding clamping mechanism 2 clamps the corresponding deformation monitoring cable.

[0045] Combine Figure 4 As shown, the clamping mechanism 2 may include a clamping cylinder 20 and claws 19. The claws 19 are arc-shaped or semicircular and are arranged in pairs. When they are close to each other, they clamp the deformation monitoring cable, and when they are separated from each other, they release the deformation monitoring cable. The axial direction of the clamping cylinder 20 is perpendicular to the penetration direction of the deformation monitoring cable. The fixed end of the clamping cylinder 20 is connected to the movable end (penetration cylinder piston rod 26) of the penetration cylinder 25. When connected, the connection can be made through a frame. The frame mentioned here can support the clamping cylinder 20 and can be fixed to the penetration cylinder piston rod 26. The movable end of the clamping cylinder 20 (i.e., the clamping cylinder piston rod 18) is connected to the claw 19. The movement of the clamping cylinder piston rod 18 drives the claws 19 to move closer or further away from each other. When they approach each other, they clamp the deformation monitoring cable. In order to better clamp the deformation monitoring cable, a flexible anti-slip and buffer structure can be provided on the inner side of the claw 19, or a plurality of protrusions can be provided on the inner side of the claw 19 to increase the vertical friction force and facilitate the clamping of the deformation monitoring cable. In addition, in order to adapt to the clamping action of the claw 19 and to smoothly penetrate the deformation monitoring cable, the deformation monitoring cable can include a relatively hard shell sleeved on the outer diameter side, and the penetration end is set into a cone.

[0046] like Figure 2As shown, the slide 6 includes a slide 6 vertically connected to the fixed frame, and the slide 6 is used to guide the movement direction of the clamping mechanism 2. Specifically, the movable end of the penetration cylinder 25 is slidably connected to the slide 6, and the fixed end of the clamping cylinder 20 is connected and slidably connected to the slide 6. Alternatively, the movable end of the penetration cylinder 25 and the fixed end of the clamping cylinder 20 are simultaneously slidably connected to the slide 6. The slide 6 can adopt a guide groove (or slide groove), and the corresponding guide groove (or slide groove) is provided with a guide rod (or slide rod), which is connected to the movable end of the penetration cylinder 25 and / or the fixed end of the clamping cylinder 20.

[0047] like Figure 3 and Figure 5 As shown, the disengagement mechanism 9 may include a first latch seat 14 fixed to the auxiliary mechanism 3, a second latch seat 21 fixed to the CPT device 5, and a latch rod 23 for inserting into latch holes 24 in the first and second latch seats 14, 21 to achieve locking. Both the first and second latch seats 14, 21 may utilize an ear-plate structure, each provided with a latch hole 24. After the auxiliary mechanism 3 and the CPT device 5 are positioned, the latch holes 24 can be aligned. Inserting the latch rod 23 into the latch hole 24 locks the connection between the first and second latch seats 14, 21. The disengagement mechanism 9 also includes a disengagement cylinder 22. The fixed end of the disengagement cylinder 22 is fixed to the CPT device 5, and the movable end of the disengagement cylinder 22 is connected to the latch rod 23. By controlling the disengagement cylinder 22, the latch rod 23 can be extended and retracted, thereby controlling whether the auxiliary mechanism 3 and the CPT device 5 are locked.

[0048] The penetration cylinder 25, the clamping cylinder 20, and the disengagement cylinder 22 of the present invention can all rely on hydraulic power to achieve high-force penetration, clamping, and other operating states, ensuring rapid, powerful, and stable penetration. At the same time, the corresponding hydraulic power mechanism is installed on the CPT device 5, and the CPT device 5 completes the oil circuit control. There is no need to set up an additional energy source on the deployment device separately, which can reduce the cost of the deployment device. It is also convenient to use the CPT device 5 to carry the deployment device for another deployment after completing a deployment task.

[0049] like Figure 7As shown, it can include a resistance-increasing bracket 7, which is fixedly connected to the fixed frame through a triangular bracket 27. In addition, the resistance-increasing bracket 7 is provided corresponding to the first deformation monitoring cable 4 and / or the second deformation monitoring cable 10. The resistance-increasing bracket 7 is provided with a resistance-increasing opening for passing the corresponding deformation monitoring cable. A rubber ring that abuts the deformation monitoring cable can also be provided in the resistance-increasing opening to provide vertical friction to resist the effect of gravity and prevent the deformation monitoring cable from twisting during the penetration process. The deformation monitoring cable is limited by the resistance-increasing bracket 7, which can work together with the claws 19 of the clamping mechanism 2 to maintain the stability of the deformation monitoring cable during the lowering process, prevent the deformation monitoring cable from moving or getting out of control due to factors such as water flow during the lowering process, and at the same time, can assist the slide 6 in maintaining the penetration direction of the deformation monitoring cable during penetration.

[0050] like Figure 2 As shown, the auxiliary mechanism 3 may include a housing formed by a support plate 13, side panels, and a top panel. The electronics compartment 16 and battery compartment 17 are both located within the housing and mounted on the support plate 13. The side panels and top panel utilize a grid plate 12. The support plate 13 serves to mount and secure the various compartments, while the grid plate 12 protects the compartments within the housing, preventing impacts during deployment and attacks by seabed organisms during long-term deployment on the seabed. A lifting ring may be welded to the grid plate 12 on the top panel to facilitate transportation and salvage of the auxiliary mechanism 3.

[0051] like Figure 1 and Figure 3 As shown, the housing of the auxiliary mechanism 3 is flush with the bottom surface of the CPT device 5, which can ensure that the auxiliary mechanism 3 is separated from the CPT device 5 smoothly. In addition, a winch 15 is installed on the support plate 13. The winch 15 is used to recycle the deformation monitoring cable. The winch 15 can recycle the part of the deformation monitoring cable connected to the electronic compartment 16 and the battery compartment 17. This part refers to the Figure 2 The cable 8 shown can be a Kevlar cable, capable of withstanding significant axial tension. The cable 8 is connected to the first and second strain monitoring cables 4 and 10 via watertight connectors. Stainless steel mesh sleeves are installed at both ends of the cable 8, with one end attached to the top of the strain monitoring cable and the other end attached to a winch 15. This prevents the ends of the cable 8 from being damaged by stress. Before penetration, there is a certain distance between the top of the strain monitoring cable and the auxiliary mechanism 3. After penetration, the top of the strain monitoring cable is flush with the top or bottom of the auxiliary mechanism 3, leaving the cable 8 free and unconstrained. If left unchecked, it could be affected by water impact, deformation, and other factors that could affect its operation. Therefore, retrieving the strain monitoring cable using the winch 15 prevents this excess strain monitoring cable (cable 8) from being affected by water impact, deformation, and other factors that could affect the normal operation of the device. The winch 15 can be electrically driven, powered by a battery compartment 17, or it can employ a torsion spring structure for self-recovery, or adopt other existing drive methods.

[0052] like Figures 1 to 7 As shown, the present invention also provides a method for laying a shallow stratum deformation monitoring cable, which can apply the above-mentioned laying device, including the following contents:

[0053] Clamp the deformation monitoring cable onto the penetration mechanism 1 on the fixed frame, and install the auxiliary mechanism 3 on the CPT device 5;

[0054] Lower the deformation monitoring cable and the auxiliary mechanism 3 along with the CPT device 5 to the predetermined position;

[0055] The deformation monitoring cable is penetrated into the predetermined position by the penetration mechanism 1 and then separated from the CPT device 5;

[0056] The auxiliary mechanism 3 is separated from the CPT device 5 by the disengagement mechanism 9;

[0057] The deformation monitoring cable and the auxiliary mechanism 3 remain in the predetermined position for in-situ monitoring.

[0058] Furthermore, the penetration mechanism 1 may be configured to penetrate the deformation monitoring cable in the following manner:

[0059] S1: The clamping mechanism 2 clamps the deformation monitoring cable, and the oil cylinder 25 pushes the clamping mechanism 2 downward for a fixed distance, driving the deformation monitoring cable downward for a fixed distance;

[0060] S2, the clamping mechanism 2 releases the deformation monitoring cable, and the oil cylinder 25 drives the clamping mechanism 2 to move upward and return to its original position;

[0061] Repeat steps S1 and S2 to complete the penetration of the deformation monitoring cable.

[0062] The present invention provides a specific deployment method as follows:

[0063] (1) Before lowering the deployment device, the auxiliary mechanism 3 is installed on the CPT device 5. The first latch seat 14 on the auxiliary mechanism 3 is aligned with the latch hole 24 of the second latch seat 21 on the CPT device 5. The disengagement cylinders 22 on both sides are driven to push the latch rod 23 outward. The latch rod 23 passes through the latch hole 24 of the first latch seat 14 and the second latch seat 21, locking the auxiliary mechanism 3 and the CPT device 5.

[0064] (2) There are two first deformation monitoring cables 4 and second deformation monitoring cables 10, each with a length of 3 m. Adjust the positions of the first deformation monitoring cables 4 and the second deformation monitoring cables 10, adjust the lower bosses of the first deformation monitoring cables 4 and the second deformation monitoring cables 10 to the clamping cylinder 20, and the upper bosses are located at the resistance-increasing bracket 7. Control the clamping cylinders 20 to move toward each other, and use different claws 19 to clamp the first deformation monitoring cables 4 and the second deformation monitoring cables 10 respectively.

[0065] (3) Lowering the CPT device 5, the first deformation monitoring cable 4, the second deformation monitoring cable 10, and the auxiliary mechanism 3 to a predetermined position on the seabed. The landing point of the CPT device 5 is the penetration position of the deformation monitoring cable.

[0066] (4) Control the oil supply device of the CPT device 5 to supply oil, so that the penetration cylinder 25 pushes the penetration cylinder piston rod 26 to move downward a fixed distance, and at the same time drives the clamping mechanism 2 to move downward a fixed distance, so that the first deformation monitoring cable 4 and / or the second deformation monitoring cable 10 penetrate to a certain depth; after reaching the position, control the clamping cylinder 20 to move outward, so that the first deformation monitoring cable 4 and the second deformation monitoring cable 10 are no longer locked, and then control the penetration cylinder 25 to move upward back to its original position through the oil supply device of the CPT device 5, and then control the oil supply device of the CPT device 5 to supply oil so that the clamping cylinder 20 moves inward to clamp the first deformation monitoring cable 4 and the second deformation monitoring cable 10, preparing for the next penetration.

[0067] (5) Repeat step (4) several times, the number of times depending on the length of the first deformation monitoring cable 4, the second deformation monitoring cable 10 and the required penetration length, until the first deformation monitoring cable 4, the second deformation monitoring cable 10 is completely penetrated or reaches the specified penetration depth.

[0068] (6) After step (5) is completed, the oil supply device of the CPT device 5 is controlled to supply oil so that the clamping cylinder 20 moves outward and no longer locks the first deformation monitoring cable 4 and the second deformation monitoring cable 10. Then, the penetration cylinder 25 is controlled to return to its original position. At this time, the clamping cylinder 20 and the first deformation monitoring cable 4 and the second deformation monitoring cable 10 are in a disengaged state, ready for device separation.

[0069] (7) Control the disengagement cylinder 22 to move inward, so that the latch rod 23 moves inward and leaves the latch hole 24. After completely disengaging from the latch hole 24, the first deformation monitoring cable 4, the second deformation monitoring cable 10 and the auxiliary mechanism 3 are no longer fixed to the CPT device 5. The CPT device 5 can be recovered by the ROV through the hook on the top. The first deformation monitoring cable 4, the second deformation monitoring cable 10 and the auxiliary mechanism 3 remain in place for long-term in-situ monitoring.

[0070] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A deployment device for shallow stratum deformation monitoring cable, characterized by: The device comprises a fixing frame fixedly connected to a CPT device and an auxiliary mechanism connected to the CPT device via a detachment mechanism. The fixing frame is equipped with a penetration mechanism for clamping and penetrating a deformation monitoring cable. The auxiliary mechanism includes an electronics compartment and a battery compartment connected to the deformation monitoring cable. The deformation monitoring cable and the auxiliary mechanism are lowered to a predetermined position along with the CPT device. After the deformation monitoring cable penetrates the predetermined position through the penetration mechanism, it is separated from the CPT device. The auxiliary mechanism is separated from the CPT device via the detachment mechanism. The deformation monitoring cable and the auxiliary mechanism remain in the predetermined position for in-situ monitoring. The disengagement mechanism includes a first latch seat fixed on the auxiliary mechanism, a second latch seat fixed on the CPT device, and a latch rod for inserting into the latch holes on the first latch seat and the second latch seat to achieve locking. It also includes a disengagement cylinder, the fixed end of which is fixed on the CPT device, and the movable end of which is connected to the latch rod.

2. The deployment device for shallow stratum deformation monitoring cable according to claim 1, characterized in that: The penetration mechanism includes a penetration cylinder and a clamping mechanism. The axial direction of the penetration cylinder is in the same direction as the penetration direction of the deformation monitoring cable. The fixed end of the penetration cylinder is connected to the fixed frame, and the movable end of the penetration cylinder is connected to the clamping mechanism. The clamping mechanism is used to clamp the deformation monitoring cable during penetration.

3. The deployment device for shallow stratum deformation monitoring cable according to claim 2, characterized in that: The clamping mechanism includes a clamping cylinder and a clamping claw. The axial direction of the clamping cylinder is perpendicular to the penetration direction of the deformation monitoring cable. The fixed end of the clamping cylinder is connected to the movable end of the penetration cylinder. The movable end of the clamping cylinder is connected to the clamping claw. When the clamping claws approach each other, they clamp the deformation monitoring cable.

4. The deployment device for shallow stratum deformation monitoring cable according to claim 3, characterized in that: It comprises a slideway, which is vertically connected to the fixing frame, and the movable end of the penetration cylinder and / or the fixed end of the clamping cylinder are slidably connected to the slideway.

5. The deployment device for shallow stratum deformation monitoring cable according to claim 1, characterized in that: It comprises a resistance-increasing bracket, wherein the resistance-increasing bracket is provided with a resistance-increasing opening for passing the deformation monitoring cable, and a rubber ring abutting against the deformation monitoring cable is provided in the resistance-increasing opening.

6. The deployment device for shallow stratum deformation monitoring cable according to claim 1, characterized in that: The auxiliary mechanism includes a box body surrounded by a support plate, side plates and a top plate. The electronic compartment and the battery compartment are both located in the box body and mounted on the support plate. The side plates and the top plate are grid plates.

7. The deployment device for shallow stratum deformation monitoring cable according to claim 6, characterized in that: The box is flush with the bottom surface of the CPT device, and a winch is installed on the support plate, and the winch is used to retract the deformation monitoring cable.

8. A method for laying a shallow stratum deformation monitoring cable, characterized in that: A deployment device for a shallow stratum deformation monitoring cable according to any one of claims 1 to 7 includes the following contents: Clamp the deformation monitoring cable onto the penetration mechanism on the fixed frame and install the auxiliary mechanism on the CPT device; Lowering the deformation monitoring cable and the auxiliary mechanism along with the CPT device to a predetermined position; The deformation monitoring cable is penetrated into a predetermined position by the penetration mechanism and then separated from the CPT device; separating the auxiliary mechanism from the CPT device via a disengagement mechanism; The deformation monitoring cable and the auxiliary mechanism remain in a predetermined position for in-situ monitoring.

9. The method for laying a shallow stratum deformation monitoring cable according to claim 8, characterized in that: When the penetration mechanism penetrates the deformation monitoring cable: S1. The clamping mechanism clamps the deformation monitoring cable, and the hydraulic cylinder pushes the clamping mechanism downward for a fixed distance, thereby driving the deformation monitoring cable downward for a fixed distance; S2, the clamping mechanism releases the deformation monitoring cable, and the penetration cylinder drives the clamping mechanism to move upward and return to its original position; Repeat steps S1 and S2 to complete the penetration of the deformation monitoring cable.

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