Dynamic monitoring equipment for grouting liquid level of ultra-deep foundation pit

Abstract

The invention relates to the field of foundation pit grouting liquid level monitoring, and discloses ultra-deep foundation pit grouting liquid level dynamic monitoring equipment which comprises a shell, an upper shell is arranged at the top of the shell, a supporting ring is arranged at the top of the upper shell, and a corrugated film is installed in the middle of the supporting ring; the top of the curved bar is connected with the corrugated membrane, the bottom of the curved bar is connected with the transmission mechanism, and the curved bar is used for moving along with the corrugated membrane and driving the transmission mechanism to operate; magnetic sheets are arranged at the tops of the thin ropes, and the transmission mechanism runs to drive the cutting knife to rotate to continuously cut off the thin ropes to enable the magnetic sheets to float upwards. According to the device, along with floating of grouting materials, the corrugated film gradually drives the curved bar to enable the transmission structure to drive the cutting knife to cut off the strings one by one to release the magnetic sheets, the grouting depth can be obtained after information of the magnetic sheets is obtained, real-time monitoring of the grouting liquid level is achieved, and the problem that the liquid level depth is inaccurately judged through a traditional manual lifting type method is solved; and personal errors are reduced, and the problem that the grouting pressure cannot be accurately adjusted is solved.

Description

Technical Field

[0001] The invention relates to the field of foundation pit grouting liquid level monitoring, in particular to a super-deep foundation pit grouting liquid level dynamic monitoring device. Background Art

[0002] In order to improve the overall stability and safety of the dam and extend the service life of the dam, the grouting method is often used to construct the foundation anti-seepage curtain. Real-time monitoring of parameters during the grouting stage has become one of the key indicators for evaluating the quality of grouting. However, at present, under the working condition of a deeper depth of about 200m, the artificial lifting method is generally used to collect data on the distance from the grouting material to the upper surface of the mud. The artificial lifting method is to put a scaled iron rope into the mud. Due to the different densities and hardnesses of the mud and the grouting material, the workers rely on their senses to judge whether the iron rope contacts the grouting material, and read the height of the grouting material through the scale. This traditional measurement method cannot accurately grasp the real-time height reached by the grouting material during the grouting process, resulting in the inability to accurately adjust the grouting pressure, and will also cause phenomena such as untimely pipe removal, resulting in unnecessary waste. In the mud environment with a grouting depth of about 200 meters, the attenuation of ultrasonic and optical signals is relatively fast, and the on-site noise has a large impact, making it impossible to perform effective data collection under this harsh working condition. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention provides a dynamic monitoring device for the grouting liquid level of an ultra-deep foundation pit, which solves the problem in the prior art that workers rely on feeling to judge whether the iron rope contacts the grouting material and read the height of the grouting material through a scale, and therefore cannot accurately grasp the real-time height reached by the grouting material during the grouting process.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a dynamic monitoring device for grouting level of ultra-deep foundation pit, comprising:

[0005] The outer shell is set to be a hollow inverted cone, with an upper shell arranged on the top, a support ring arranged on the top of the upper shell, and a corrugated membrane installed in the middle of the support ring for deforming with pressure;

[0006] A curved rod is located in the housing, the top of which is connected to the corrugated membrane, and the bottom of which is connected to the transmission mechanism. The curved rod is used to move along with the corrugated membrane and drive the transmission mechanism to operate;

[0007] The thin ropes are provided with magnetic pieces on the tops of the plurality of thin ropes. After the transmission mechanism is operated, the cutting knife is driven to rotate and cut the thin ropes successively to make the magnetic pieces float.

[0008] Preferably, the transmission mechanism comprises:

[0009] A support rod, one side of which is connected to a fan gear, and the other side of which is movably connected to a crank rod, wherein the crank rod moves with the deformation of the dynamic corrugated membrane and drives the support rod to swing the fan gear;

[0010] The pinion gear is coaxial with the large gear and is used to transmit the swing of the fan gear to make the large gear rotate;

[0011] One side of the large gear is connected to the ratchet, and the other side is provided with a bevel gear one, and the three are coaxially arranged. The bottom of the bevel gear one is connected to the bevel gear two. The large gear two is used to transmit the kinetic energy of the large gear one to drive the bevel gear two to rotate. A locking mechanism is provided on the outside of the ratchet to make the ratchet rotate in a directional manner and then drive the bevel gear one and the bevel gear two to rotate. The cutting knife is installed at the bottom of the bevel gear two and rotates with the bevel gear two to cut the thin rope.

[0012] Preferably, a bracket one is fixedly connected to one side in the middle of the bottom surface of the upper shell, the bottom of the bracket one is rotatably connected to shaft one, the small gear and large gear one are both fixedly connected to the outside of shaft one, a bracket two is fixedly connected to the middle of the bottom surface of the upper shell, the bottom of the bracket two is rotatably connected to shaft two, the ratchet is rotatably connected to shaft two, and the bevel gear one is fixedly connected to shaft two.

[0013] Preferably, a bracket three is fixedly connected to the outer middle part of the bottom surface of the upper shell, a fixing rod is fixedly connected to the middle part of the bracket three, and the bevel gear two is rotatably connected to the fixing rod.

[0014] Preferably, a bracket four is fixedly connected to the top of the fixing rod, and the top of the bracket four is rotatably connected to one side of the fan gear.

[0015] Preferably, a clamp is fixedly connected to the outer middle part of the bottom of the bracket, a plurality of holes are opened in the middle of the clamp, and the bottom of the thin rope is installed in the hole, and a pressing sheet of silicone material is provided on the outer middle part of the top surface of the upper shell, and the pressing sheet is located on the top surface of the magnetic sheet.

[0016] Preferably, the locking mechanism includes an insert rod and a pawl, a support is installed at the end of the insert rod, one side of the pawl is in contact with the outer side of the ratchet, the middle part of the pawl is fixedly connected to a connecting rod, the connecting rod is located in the support, and a torsion spring is sleeved on the outer side of the connecting rod, the middle part of the insert rod is fixedly connected to the middle part of the second shaft, and is located between the ratchet and the bevel gear one.

[0017] Preferably, the colors and patterns on the surfaces of the plurality of magnetic sheets are different, and the overall density of the device is greater than the density of the mud but less than the density of the grouting material. When the magnetic sheets float up, the liquid level depth of the grouting material is obtained by analyzing the colors and patterns of the magnetic sheets.

[0018] Preferably, analyzing the color and pattern of the magnetic sheet to obtain the liquid depth of the grouting material comprises the following steps:

[0019] S1. First, mark and record the color and pattern type of each magnetic piece, then determine the color and image of the magnetic piece closest to the cutting surface of the cutting knife, and set it as the initial magnetic piece, and then arrange and record the remaining magnetic pieces in sequence according to the cutting direction of the cutting knife.

[0020] S2. When the magnetic piece floats up and is collected, a scanning device is first used to obtain a color image of the magnetic piece, and the image is pre-processed and converted into a uniform format and size, and then grayscaled, and an algorithm is applied to improve the image quality;

[0021] S3, according to the color features of the color card after grayscale processing, use the color segmentation algorithm to divide the image into different color areas, use the color histogram to represent and identify, then compare and record the pre-recorded magnetic disk arrangement, find the same features and determine the number and information of the floating magnetic disk;

[0022] S4, packaging the finally extracted information, recognition results and comparison results into a data format and transmitting them to a computer;

[0023] S5. The computer analyzes the transmission information and displays the depth information.

[0024] Preferably, the scanning device includes a camera, and filtering and denoising algorithms are used to improve image quality. In S4, data transmission includes wireless network and USB cable.

[0025] The present invention provides a dynamic monitoring device for ultra-deep foundation pit grouting level. It has the following beneficial effects:

[0026] 1. The present invention uses the device to gradually drive the displacement of the curved rod by the corrugated membrane as the grouting material floats up, and then the transmission structure gradually drives the cutting knife to cut multiple thin ropes one by one and release the magnetic pieces one by one. After obtaining the magnetic piece information, the grouting depth can be obtained, and the real-time monitoring of the grouting liquid level is realized, which solves the inaccuracy of judging the liquid level depth by the traditional manual pulling method, reduces human errors, and avoids the problem of inability to accurately adjust the grouting pressure.

[0027] 2. The present invention achieves blocking of external mud by tightly fitting the pressing sheet with the upper shell, preventing mud from entering the device after the magnetic sheet and the thin rope are released, ensuring the normal operation of the equipment under harsh working conditions, and solving the problems of equipment contamination and data accuracy in the liquid level measurement process.

[0028] 3. The upper shell can be separated from the outer shell by rotating it, and then the magnetic sheet and the string can be reinstalled. By tying the bottom of the string to the clamp, the magnetic sheet can be tightened, and then the magnetic sheet information can be re-recorded. Finally, the upper shell can be screwed onto the outer shell to carry out the next depth test, thereby realizing the recycling of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0030] Figure 2 It is a schematic diagram of the internal structure of the housing of the present invention;

[0031] Figure 3 It is a schematic diagram of the internal structure of the upper shell of the present invention;

[0032] Figure 4 It is a schematic diagram of the structure of the branch ring part of the present invention;

[0033] Figure 5 It is a sectional view of the local structure of the tablet of the present invention;

[0034] Figure 6 It is a schematic diagram of the structure of the pinion part of the present invention;

[0035] Figure 7 It is a schematic diagram of the three-part structure of the bracket of the present invention;

[0036] Figure 8 It is a schematic structural diagram of the curved rod part of the present invention;

[0037] Fig. 9 It is a schematic diagram of the ratchet part structure of the present invention.

[0038] Among them, 1. outer shell; 2. upper shell; 3. support ring; 4. corrugated membrane; 5. curved rod; 6. support rod; 7. fan gear; 8. small gear; 9. large gear one; 10. large gear two; 11. ratchet; 12. bevel gear one; 13. bevel gear two; 14. cutting knife; 15. thin rope; 16. magnetic sheet; 17. bracket one; 18. bracket two; 19. bracket three; 20. fixing rod; 21. bracket four; 22. snap ring; 23. plug rod; 24. support; 25. pawl; 26. connecting rod; 27. pressing sheet. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0040] In order to better understand the present invention, the above contents are described in detail below in conjunction with specific embodiments.

[0041] Embodiment 1:

[0042] Please see attached Figure 1-Figure 9The embodiment of the present invention provides a dynamic monitoring device for the grouting level of an ultra-deep foundation pit, including: a shell 1, which is set to be a hollow inverted cone, and an upper shell 2 is arranged on the top of the upper shell 2, and a support ring 3 is arranged on the top of the upper shell 2. A corrugated membrane 4 is installed in the middle of the support ring 3, which is used to deform with pressure; a curved rod 5, which is located in the shell 1, and the top of which is connected to the corrugated membrane 4, and the bottom is connected to the transmission mechanism, and the curved rod 5 is used to move with the corrugated membrane 4 and drive the transmission mechanism to operate; a thin rope 15, and a magnetic sheet 16 is arranged on the top of each of the multiple thin ropes 15. After the transmission mechanism is operated, it drives the cutting knife 14 to rotate and cut the thin ropes 15 one by one to make the magnetic sheet 16 float up. Therefore, in the process of gradual floating of the device, the corrugated membrane 4 The pressure on the membrane 4 gradually decreases, so it will gradually deform and return to its initial state. At this time, the corrugated membrane 4 will pull the curved rod 5 to gradually move upward, thereby driving the transmission mechanism to gradually operate, and then the transmission mechanism will drive the cutting knife 14 to rotate, thereby cutting multiple thin ropes 15 to remove the magnetic piece 16, and then the magnetic piece 16 floats up. Finally, after obtaining the information of the magnetic piece 16, the current grouting depth can be obtained, and a counterweight block can be added to the bottom of the outer shell 1, so that the center of gravity of the entire device can be set at the bottom of the device, so that during the sinking and floating process, the entire device always remains in a vertical state, thereby ensuring the operation of the internal mechanism and the release of the magnetic piece 16.

[0043] Please see attached Figure 1-Figure 9 The transmission mechanism includes: a support rod 6, one side of which is connected to a fan gear 7, and the other side is movably connected to a curved rod 5, the curved rod 5 moves with the deformation of the movable corrugated membrane 4, and drives the support rod 6 to swing the fan gear 7; a small gear 8, which is coaxial with a large gear 9, and is used to transmit the swing of the fan gear 7 to rotate the large gear 9; a large gear 2 10, one side of which is connected to a ratchet 11, and the other side is provided with a bevel gear 12, and the three are coaxially arranged, a bevel gear 2 13 is connected to the bottom of the bevel gear 12, the large gear 2 10 is used to transmit the kinetic energy of the large gear 19 to drive the bevel gear 2 13 to rotate, a locking mechanism is provided on the outside of the ratchet 11, which is used to make the ratchet 11 rotate in a directional manner for transmission and then drive the bevel gear 12 and the bevel gear 2 13 to rotate, and a cutting knife 14 is installed at the bottom of the bevel gear 2 13 and rotates with the bevel gear 2 13 to cut the thin rope 15.

[0044] In the present invention, after one side of the support rod 6 moves along with the bent rod 5, the other side thereof can drive the fan gear 7 to swing, and the swing of the fan gear 7 further drives the small gear 8 connected thereto to rotate. The small gear 8 is coaxially arranged with the large gear 1 9, so that the swing of the fan gear 7 is transmitted to the large gear 1 9, causing it to rotate. In addition, one side of the large gear 2 10 is connected to the ratchet 11, and the other side is provided with a bevel gear 1 12, and the three are coaxially arranged. The bottom of the bevel gear 1 12 is connected to the bevel gear 2 13, and the function of the large gear 2 10 is to transmit the rotational kinetic energy of the large gear 1 9 to the bevel gear 2 13, so that the bevel gear 2 13 rotates synchronously. At the same time, the ratchet 11 is provided with a locking mechanism on the outside, which can ensure that the ratchet 11 rotates in a directional manner for transmission, thereby controlling the rotation of the bevel gear 1 12 and the bevel gear 2 13. A cutting knife 14 is installed at the bottom of the bevel gear 2 13, and as the bevel gear 2 13 rotates, the cutting knife 14 gradually cuts off the thin rope 15 connecting the multiple magnetic sheets 16.

[0045] Please see attached Figure 1-Figure 9 , a bracket 17 is fixedly connected to one side of the middle of the bottom surface of the upper shell 2, and the bottom of the bracket 17 is rotatably connected to the shaft 1, the small gear 8 and the large gear 19 are fixedly connected to the outside of the shaft 1, the middle of the bottom surface of the upper shell 2 is fixedly connected to the bracket 2 18, the bottom of the bracket 2 18 is rotatably connected to the shaft 2, the ratchet 11 is rotatably connected to the shaft 2, and the bevel gear 12 is fixedly connected to the shaft 2. A bracket 3 19 is fixedly connected to the outside of the middle of the bottom surface of the upper shell 2, a fixed rod 20 is fixedly connected to the middle of the bracket 3 19, and the bevel gear 2 13 is rotatably connected to the fixed rod 20. The top of the fixed rod 20 is fixedly connected to the bracket 4 21, and the top of the bracket 4 21 is rotatably connected to one side of the fan gear 7.

[0046] In the present invention, the bottom of the bracket 17 is connected to the shaft 1 by a rotational connection, and the small gear 8 and the large gear 1 9 are fixed on the outside of the shaft 1, so that the rotation of the small gear 8 can be effectively transmitted to the large gear 1 9. In addition, a bracket 2 18 is fixedly connected to the middle of the bottom surface of the upper shell 2, and the bottom of the bracket 2 18 is rotatably connected to the shaft 2. The ratchet 11 is installed on the shaft 2 and is rotationally connected to the shaft 2, and the bevel gear 12 is fixedly connected to the shaft 2 so that it rotates synchronously with the shaft 2. In the whole structure, the rotation of the ratchet 11 is controlled by the locking mechanism to ensure its directional rotation so as to control The motion state of bevel gear 12 is that a bracket three 19 is fixedly connected to the outer middle part of the bottom surface of the upper shell 2, and a fixing rod 20 is further fixedly connected to the middle part of the bracket three 19. Bevel gear 2 13 is rotationally connected with the fixing rod 20. In this way, bevel gear 2 13 can rotate smoothly under the support of the fixing rod 20, thereby transmitting the power from bevel gear 12. The top of bracket four 21 is rotationally connected with one side of the fan gear 7. Through the support of bracket four 21, the fan gear 7 can realize reliable rotation under the transmission of force, ensuring that the entire device accurately responds to pressure changes under different liquid levels.

[0047] Please see attached Figure 5-Figure 7 A clamping ring 22 is fixedly connected to the outer middle part of the bottom of the bracket three 19, a plurality of holes are opened in the middle of the clamping ring 22, and the bottom of the thin rope 15 is installed in the hole. A pressing piece 27 made of silicone material is arranged on the outer middle part of the top surface of the upper shell 2, and the pressing piece 27 is located on the top surface of the magnetic sheet 16.

[0048] In the present invention, the clamping ring 22 is used to fix the thin rope 15, and a plurality of holes are opened in the middle thereof. The bottom of each thin rope 15 is installed in these holes, so that the thin rope 15 is stably suspended inside the device, ensuring that the magnetic piece 16 remains in place before being released. In addition, a pressing piece 27 made of silicone material is arranged on the outer side of the middle part of the top surface of the upper shell 2. The pressing piece 27 is located on the top surface of the magnetic piece 16, which can provide protection when the magnetic piece 16 is released, preventing mud from entering the device through the hole, and ensuring the normal operation of the device in a complex environment. And accurate monitoring effect, and bracket 1 17, bracket 2 18, bracket 3 19 and bracket 4 21 are all connected to the upper shell 2, so when the use of the device is over, the upper shell 2 can be separated from the outer shell 1 by rotating the upper shell 2, and then the magnetic sheet 16 and the thin rope 15 can be reinstalled, and the magnetic sheet 16 can be tightened by tying the bottom of the thin rope 15 to the clamp ring 22, and then the magnetic sheet 16 information is re-recorded, and finally the upper shell 2 is screwed into the outer shell 1 to carry out the next depth test, thereby realizing the recycling of the device.

[0049] Please see attached Figure 6-Figure 9 The locking mechanism includes an insert rod 23 and a pawl 25. A support 24 is installed at the end of the insert rod 23. One side of the pawl 25 contacts the outer side of the ratchet 11. The middle part of the pawl 25 is fixedly connected with a connecting rod 26. The connecting rod 26 is located in the support 24, and a torsion spring is sleeved on the outer side of the connecting rod 26. The middle part of the insert rod 23 is fixedly connected to the middle part of the second shaft and is located between the ratchet 11 and the bevel gear 1 12.

[0050] In the present invention, the locking mechanism includes an insert rod 23 and a pawl 25. A support 24 is installed at the end of the insert rod 23 for supporting the entire locking assembly. One side of the pawl 25 contacts the outer side of the ratchet 11, thereby controlling the rotation direction of the ratchet 11 under specific conditions. The middle part of the pawl 25 is fixedly connected with a connecting rod 26, and the connecting rod 26 is located in the support 24 to ensure that the pawl 25 can rotate flexibly when subjected to external force. In addition, a torsion spring is sleeved on the outer side of the connecting rod 26 to provide elastic restoring force for the pawl 25 to ensure that it is always in close contact with the outer side of the ratchet 11. The middle part of the insert rod 23 is fixedly connected to the middle part of the second shaft and is located between the ratchet 11 and the bevel gear 1 12, so that the locking mechanism can effectively control the rotation of the bevel gear, thereby achieving precise positioning and control of the entire device.

[0051] The colors and patterns on the surfaces of the multiple magnetic sheets 16 are all different, and the overall density of the device is greater than the density of the mud but less than the density of the grouting material. When the magnetic sheets 16 float, the liquid depth of the grouting material is obtained by analyzing the color and pattern of the magnetic sheets 16. Analyzing the color and pattern of the magnetic sheets 16 to obtain the liquid depth of the grouting material includes the following steps:

[0052] S1. First, mark and record the color and pattern type of each magnetic sheet 16, then determine the color and pattern of the magnetic sheet 16 closest to the cutting surface of the cutting knife 14, and set it as the initial magnetic sheet 16, and then arrange and record the remaining magnetic sheets 16 in sequence according to the cutting direction of the cutting knife 14.

[0053] S2, when the magnetic sheet 16 floats up and is collected, firstly, a color image of the magnetic sheet 16 is obtained by using a scanning device, and the image is pre-processed, converted into a uniform format and size, and then gray-scaled, and an algorithm is applied to improve the image quality;

[0054] S3, according to the color features of the color card after grayscale processing, use the color segmentation algorithm to divide the image into different color areas, use the color histogram to represent and identify, then compare and record the pre-recorded magnetic sheet 16 arrangement, find the same features and determine the number and information of the floating magnetic sheet 16;

[0055] S4, packaging the finally extracted information, recognition results and comparison results into a data format and transmitting them to a computer;

[0056] S5. The computer analyzes the transmission information and displays the depth information.

[0057] In S2, the scanning device includes a camera, and filtering and denoising algorithms are used to improve image quality. In S4, data transmission includes wireless network and USB cable.

[0058] Working principle: When in use, first mark and record the color and pattern type of each magnetic piece 16, then determine the color and picture of the magnetic piece 16 closest to the cutting surface of the cutting knife 14, and set it as the initial magnetic piece 16, and then arrange and record the remaining magnetic pieces 16 in sequence according to the cutting direction of the cutting knife 14, and then place the device in the foundation pit. Since the overall density of the device is greater than the mud, the device will sink at this time, and the density of the device is less than the grouting material, so the device will eventually float between the grouting material and the mud, and during the sinking process of the device, the depth will gradually increase, so the pressure will also increase. At this time, the corrugated membrane 4 will deform and enter the outer shell 1, thereby squeezing the curved rod 5 downward, and then driving the support rod 6 to move downward on the left side, and then the support rod 6 drives the fan gear 7 Rotate counterclockwise. Since the small gear 8 and the large gear 1 9 are fixed on the shaft 1, the fan gear 7 will drive the small gear 8 and the large gear 1 9 to rotate synchronously clockwise at the same time. Then the large gear 1 9 drives the large gear 2 10 and the ratchet 11 to rotate counterclockwise. At this time, the pawl 25 passes from the outside of the ratchet 11, so the large gear 2 10 and the ratchet 11 will rotate on the shaft 2 and will not drive any parts to rotate. However, as the grouting material increases, its liquid level gradually rises, squeezing the mud out of the foundation pit. Therefore, the device will gradually rise with the liquid level of the grouting material. Therefore, the pressure of the mud on the device will gradually decrease. At this time, the pressure on the corrugated membrane 4 will also decrease, and then it will gradually withdraw from the inside of the shell 1 and gradually return to its initial state. During the recovery process, the corrugated membrane 4 will pull The curved rod 5 moves upward, thereby driving the left side of the support rod 6 to move upward and drive the fan gear 7 to rotate clockwise. Then the fan gear 7 drives the small gear 8 and the large gear 1 9 to rotate counterclockwise synchronously, and the large gear 1 9 drives the large gear 2 10 and the ratchet 11 to rotate clockwise. At this time, the pawl 25 is engaged in the groove on the outer wall of the ratchet 11, and the force of the rotation of the ratchet 11 will be transmitted to the second shaft through the pawl 25, the support 24 and the insertion rod 23. Since the second shaft and the insertion rod 23 are fixed, the insertion rod 23 will drive the second shaft to rotate, and the second shaft can drive the bevel gear 12 to rotate, and the bevel gear 12 can drive the bevel gear 2 13 and the cutting knife 14 to rotate, thereby cutting the thin rope 15. After the thin rope 15 is cut, the corresponding magnetic piece 16 will lose the pull of the thin rope 15, so it will be separated from the upper shell 2. And float to the liquid surface of the mud, then the pressing plate 27 will fit with the upper shell 2 to prevent the mud from entering the inner part of the outer shell 1 through the small hole. Therefore, as the device gradually rises with the liquid level of the grouting material, the pressure on the device gradually decreases, and the corrugated membrane 4 gradually resets, thereby driving the bevel gear 2 13 to gradually rotate, gradually cutting off multiple thin ropes 15, and finally realizing the successive release of multiple magnetic pieces 16, and then analyzing the color and pattern of the magnetic piece 16, the liquid level of the grouting material in the foundation pit, by setting a pressing plate 27 on the top surface of the magnetic piece 16, and the pressing plate 27 is connected to the upper shell 2 on one side, so when the thin rope 15 cuts off the magnetic piece 16, it will lift up the pressing plate 27, at this time, the magnetic piece 16 and the thin rope 15 will detach from the inside of the device to realize the release of the magnetic piece 16, after the release is completed,Since the device is in a gradually rising state, the pressing sheet 27 will be in close contact with the upper shell 2, thereby preventing the mud from entering the interior of the device.

[0059] Embodiment 2:

[0060] When arranging the magnetic sheets 16, for example, multiple magnetic sheets 16 are arranged in sequence from black to white. The black one closest to the cutting knife 14 is recorded as the first magnetic sheet 16, and the next magnetic sheet 16 is recorded as the second magnetic sheet 16, and so on. When in use, for example, the foundation pit depth is 200 meters. When the grouting material is initially poured, the device is at a depth of 200 meters. As the grouting material is injected into the device, it floats up. When it floats to a depth of 199 meters, the pressure on the device decreases. Since the corrugated membrane 4 can sense a pressure change of 0.1MPa, the corrugated membrane 4 will pull the curved rod 5 after the pressure decreases, and finally the bevel gear 2 13 drives the cutting knife 14 to rotate and cut the thin rope 15 connected to the first magnetic sheet 16, releasing the first magnetic sheet 16. When the first magnetic sheet 16 is collected, it indicates that the grouting depth is 199 meters at this time. When the device floats to a depth of 198 meters, the second magnetic sheet 16 is released, and so on. After collecting the magnetic sheets 16, first use the camera The head or scanner captures the color image of the magnetic sheet. During the capture process, it is necessary to ensure that the image is clear and well-lit for subsequent processing. The image is then preprocessed and converted into a unified format and size. Grayscale processing is performed to reduce the amount of calculation, and filtering and denoising algorithms are applied to improve image quality. According to the color characteristics of the color card, the color segmentation algorithm is used to segment the image into different color areas. For each color, a color histogram can be used to represent and identify it. The extracted features are then classified using a trained classifier to identify different color cards. The final extracted information and recognition results are packaged into a data format and transferred to a computer through a network or USB interface. After the computer receives the data, the corresponding software or script can be used to parse the data. According to the needs, the data can be further processed and calculated, such as statistics, analysis or report generation, and finally output through a graphical interface, report file or printout.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dynamic monitoring device for ultra-deep foundation pit grouting level, characterized in that: include: The outer shell (1) is in the shape of a hollow inverted cone, with an upper shell (2) disposed on the top thereof, a support ring (3) disposed on the top of the upper shell (2), and a corrugated membrane (4) installed in the middle of the support ring (3) for deforming in response to pressure; A curved rod (5) is located in the housing (1), the top of which is connected to the corrugated membrane (4) and the bottom of which is connected to the transmission mechanism. The curved rod (5) is used to move along with the corrugated membrane (4) and drive the transmission mechanism to operate; A thin rope (15), a plurality of thin ropes (15) are each provided with a magnetic sheet (16) at the top, and after the transmission mechanism is operated, the cutting knife (14) is driven to rotate and successively cut the thin ropes (15) so that the magnetic sheet (16) floats up.

2. The ultra-deep foundation pit grouting level dynamic monitoring device according to claim 1 is characterized in that: The transmission mechanism comprises: A support rod (6) is connected to a fan gear (7) on one side and is movably connected to a curved rod (5) on the other side. The curved rod (5) moves with the deformation of the corrugated membrane (4) and drives the support rod (6) to swing the fan gear (7). A small gear (8) is coaxial with the large gear one (9) and is used to transmit the swing of the fan gear (7) to rotate the large gear one (9); A large gear (10) is connected to the ratchet (11) on one side and is provided with a bevel gear (12) on the other side, and the three are coaxially arranged. The bottom of the bevel gear (12) is connected to the bevel gear (13). The large gear (10) is used to transmit the kinetic energy of the large gear (9) to drive the bevel gear (13) to rotate. A locking mechanism is provided outside the ratchet (11) to make the ratchet (11) rotate in a directional manner and drive the bevel gear (12) and the bevel gear (13) to rotate. The cutting knife (14) is installed at the bottom of the bevel gear (13) and rotates with the bevel gear (13) to cut the thin rope (15).

3. The ultra-deep foundation pit grouting level dynamic monitoring device according to claim 2 is characterized in that: A bracket 1 (17) is fixedly connected to one side of the middle of the bottom surface of the upper shell (2), and the bottom of the bracket 1 (17) is rotatably connected to the shaft 1. The small gear (8) and the large gear 1 (9) are both fixedly connected to the outside of the shaft 1. A bracket 2 (18) is fixedly connected to the middle of the bottom surface of the upper shell (2), and the bottom of the bracket 2 (18) is rotatably connected to the shaft 2. The ratchet (11) is rotatably connected to the shaft 2, and the bevel gear 1 (12) is fixedly connected to the shaft 2.

4. The ultra-deep foundation pit grouting level dynamic monitoring device according to claim 2 is characterized in that: A third bracket (19) is fixedly connected to the outer middle part of the bottom surface of the upper shell (2), a fixed rod (20) is fixedly connected to the middle part of the third bracket (19), and the second bevel gear (13) is rotatably connected to the fixed rod (20).

5. The ultra-deep foundation pit grouting level dynamic monitoring device according to claim 4 is characterized in that: The top of the fixed rod (20) is fixedly connected to a bracket four (21), and the top of the bracket four (21) is rotatably connected to one side of the fan gear (7).

6. The ultra-deep foundation pit grouting level dynamic monitoring device according to claim 4 is characterized in that: A clamping ring (22) is fixedly connected to the outer middle part of the bottom of the bracket three (19), a plurality of holes are opened in the middle of the clamping ring (22), and the bottom of the thin rope (15) is installed in the hole, and a pressing sheet (27) made of silicone material is arranged on the outer middle part of the top surface of the upper shell (2), and the pressing sheet (27) is located on the top surface of the magnetic sheet (16).

7. The ultra-deep foundation pit grouting level dynamic monitoring device according to claim 3 is characterized in that: The locking mechanism comprises an insert rod (23) and a pawl (25), the end of the insert rod (23) is installed with a support (24), one side of the pawl (25) contacts the outer side of the ratchet (11), the middle part of the pawl (25) is fixedly connected with a connecting rod (26), the connecting rod (26) is located in the support (24), and the outer side of the connecting rod (26) is sleeved with a torsion spring, the middle part of the insert rod (23) is fixedly connected to the middle part of the second shaft, and is located between the ratchet (11) and the bevel gear (12).

8. The ultra-deep foundation pit grouting level dynamic monitoring device according to claim 1 is characterized in that: The colors and patterns on the surfaces of the plurality of magnetic sheets (16) are all different, and the overall density of the device is greater than the density of the mud but less than the density of the grouting material. When the magnetic sheets (16) float up, the liquid depth of the grouting material is obtained by analyzing the colors and patterns of the magnetic sheets (16).

9. The ultra-deep foundation pit grouting liquid level dynamic monitoring device according to claim 8 is characterized in that: Analyzing the color and pattern of the magnetic sheet (16) to obtain the liquid level depth of the grouting material includes the following steps: S1. First, mark and record the color and pattern type of each magnetic sheet (16), then determine the color and pattern of the magnetic sheet (16) closest to the cutting surface of the cutting knife (14), and set it as the initial magnetic sheet (16), and then arrange and record the remaining magnetic sheets (16) in sequence according to the cutting direction of the cutting knife (14). S2, when the magnetic sheet (16) floats up and is collected, firstly, a color image of the magnetic sheet (16) is obtained by using a scanning device, and the image is pre-processed and converted into a uniform format and size, and then gray-scaled, and an algorithm is applied to improve the image quality; S3, according to the color features of the color card after grayscale processing, use the color segmentation algorithm to divide the image into different color areas, use the color histogram to represent and identify, then compare and record the pre-recorded magnetic sheet (16), find the same features and determine the number and information of the floating magnetic sheet (16); S4, packaging the finally extracted information, recognition results and comparison results into a data format and transmitting them to a computer; S5. The computer analyzes the transmission information and displays the depth information.

10. The ultra-deep foundation pit grouting liquid level dynamic monitoring device according to claim 9, characterized in that: In S2, the scanning device includes a camera, and filtering and denoising algorithms are used to improve image quality. In S4, data transmission includes wireless network and USB cable.

Images