Caisson transport control device and control method thereof
By installing a level gauge and inclination gauge on the caisson and using the central control room for real-time data analysis and wireless transmission, the problems of low accuracy and poor safety of caisson outflow monitoring in the existing technology are solved, real-time caisson outflow is realized Monitoring and dynamic analysis ensure the stability and safety of the caisson.
Patent Information
- Application Number
- CN202111238224.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-10-25
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2041-10-25
AI Technical Summary
The existing caisson discharge monitoring method relies on manual measurement, with low accuracy and discontinuity, safety risks, and lack of scientific basis, making it difficult to ensure the stability control of caisson.
A caisson discharge control device was designed, including a level gauge, inclination meter, collection box and central control room. Real-time monitoring and dynamic analysis of caisson are realized through wireless transmission and digital communication technology, providing hazard warnings and ensuring the stability of caisson. and security.
Real-time monitoring, dynamic analysis and hazard warning for caisson outbound transportation are realized, monitoring accuracy and safety are improved, project progress, safety and quality requirements are met, and scientific decision-making basis is provided.
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Figure CN113776500B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of water transport engineering, and in particular to a caisson shipping control device and a control method thereof. Background Art
[0002] At present, with the deepening of the globalization trend in the world, the types of port business are extensive and professional, which poses higher challenges to terminal construction. The specific characteristics are as follows:
[0003] 1. The construction period of the wharf project is tight and the task is heavy. The owner requires the investment project to be put into production as soon as possible. Caisson shipment is a key point in the project progress. Improving efficiency requires safety and quality guarantees. The control point lies in the dynamic monitoring of caisson stability.
[0004] 2. The structural forms of caissons are gradually diversified, such as wave-breaking hole-through type, slender high type, buttress-ribbed type, etc. The stability of special-shaped caissons is more difficult to control during transportation, which is easy to cause casualties and economic losses.
[0005] The existing caisson transportation monitoring method is to manually pump water to obtain the water level data of the compartment and visually observe the tilt posture of the caisson. Since the caisson transportation needs to be carried out during the tide, and most of the construction is done at night, manual measurement cannot accurately grasp the dynamic data and overall posture of the caisson, the accuracy is low, the data cannot be continuously collected and retained, and there are great safety risks; the stability of the caisson is mainly determined by the construction experience of the water engineering team, without theoretical knowledge support, and has the disadvantages of subjectivity and locality. Summary of the invention
[0006] The purpose of the present invention is to provide a caisson shipping control device to achieve a safety management mode that integrates real-time monitoring, dynamic analysis, and danger warning of caisson shipping, thereby meeting the project's requirements for progress, safety, and quality.
[0007] The caisson shipping control device provided by the present invention comprises a caisson and a tugboat, and is characterized in that a data monitoring device is arranged on the caisson, and the data monitoring device comprises a liquid level meter, an inclinometer, a collection box, and a power supply device; a liquid level meter is arranged at the bottom plate of the cell of the caisson, an inclinometer is arranged on the front wall and the side wall of the top layer of the caisson, and a collection box and a power supply device are arranged on the sealing cover plate of the caisson; the power supply device is connected to the collection box, and the collection box is further connected to the liquid level meter and the inclinometer;
[0008] The cabin outer frame of the tugboat is provided with a repeater; after the repeater is wirelessly connected to the collection box, the bus signal strength is enhanced and further transmitted to the receiver; the receiver is wiredly connected to the 485 hub; the 485 hub transmits the signal to the central control room via a USB data cable.
[0009] Furthermore, the liquid level meter is fixed to the floating hook of the caisson by a clamp ring and covered with a waterproof cloth; the inclinometer is fixed to the outside of the front wall and the outside of the side wall of the caisson by an iron expansion pipe.
[0010] Furthermore, the power supply device includes a high-power lithium battery and a solar panel, and the high-power lithium battery and the solar panel are connected by wires; the high-power lithium battery is connected to the collection box via a USB interface.
[0011] Furthermore, the central control room is arranged in the tugboat cab and powered by the inside of the tugboat. The central control room includes a stability analysis module, an emergency response module and a voice broadcast module; the stability analysis module converts the data transmitted by the collection box into three evaluation parameters, namely, caisson eccentricity, grid water level difference and fixed inclination height, through anti-tilting and floating stability to determine the stability, and establishes a three-dimensional dynamic graph to achieve visual management during the caisson transportation process; the emergency response module compares the stability assessment parameters of the stability analysis module with the critical value, and immediately initiates a safety warning if the monitoring data reaches the critical value.
[0012] Furthermore, the voice broadcast module implements a mobile phone APP notification method, which can regularly broadcast the real-time grid water level, draft depth and tilt angle to the construction personnel, and issue an alarm in time after the safety warning is turned on.
[0013] The control method of the caisson transport control device provided by the present invention is characterized by comprising the following steps:
[0014] Step 1: Install the data monitoring device on the caisson:
[0015] Before installing the caisson sealing cover, install a level meter 10 cm above the caisson cell bottom plate;
[0016] Inclinometers are arranged on the front wall and side walls of the top layer of the caisson;
[0017] After the caisson sealing cover is installed, a collection box and a power supply device are installed on the caisson sealing cover;
[0018] Connect the power supply device to the collection box, which is then connected to the level meter and the inclinometer;
[0019] After that, the caisson began to move horizontally into the dock;
[0020] Step 2, caisson shipment:
[0021] After the floating dock loaded with caissons is towed by a tugboat from the caisson prefabrication yard to the caisson pit for positioning, the hydraulic team installs the valve rod on the sealing cover plate, and the floating dock opens all the ballast tank valves to start diving with heavy load; when the caisson water inlet valve dives below the water surface, the floating dock stops diving, the hydraulic team turns the valve rod, and the caisson water filling begins;
[0022] Step 3, caisson data monitoring and transmission:
[0023] The level meter converts the pressure signals of each water depth into bus signals and transmits them to the collection box. The inclinometer converts the angle signal between the vertical axis of gravity and the sensitive axis of the internal acceleration sensor into bus signals and transmits them to the collection box. The collection box wirelessly transmits the bus signals to the repeater installed outside the tugboat cabin. The repeater strengthens the bus signal and continues to transmit it to the receiver inside the cabin. The receiver transmits the signal to the central control room via a 485 hub to USB data cable.
[0024] Step 4, caisson dynamic stability analysis and emergency response:
[0025] The stability analysis module of the central control room interprets the bus signal into water level data, and converts it into three stability evaluation parameters: caisson eccentricity, cell water level difference and fixed inclination height;
[0026] If the critical value is reached, the emergency response module will be activated immediately to inform the warning of the hazard source, level, time, location and other information; at the same time, the voice broadcast module will broadcast the emergency response information to the on-site management personnel and construction personnel in real time through the mobile phone APP;
[0027] Step 5: Caisson is shipped out and the data monitoring device is recovered:
[0028] After the caisson is shipped, the level meter, inclinometer, collection box and power supply device are removed from the caisson and recycled for next use.
[0029] Furthermore, in step 1, the level meter is fixed to the floating hook of the caisson by a clamp and covered with a waterproof cloth 33; the inclinometer is fixed to the outside of the front wall and the outside of the side wall of the caisson by an iron expansion tube; the four-core cable connecting the level meter, the inclinometer and the collection box is temporarily connected to the embedded truncated table on the partition wall of the caisson, and insulation measures are taken; after the data monitoring device is installed, the collection box and the power supply device are fixed with ropes, tied to one end of the reserved steel bar on the top of the caisson, and covered with a waterproof cloth 33, and the caisson begins to move horizontally onto the dock.
[0030] Furthermore, in step 4, when the central control room initiates the emergency response, the plan adopts color management and is divided into three levels according to the severity:
[0031] 1) Yellow monitoring warning: if the monitoring threshold exceeds 70%, the warning process will be executed immediately;
[0032] 2) Orange monitoring warning: When the monitoring threshold exceeds 85%, the warning process will continue;
[0033] 3) Red monitoring warning: When the monitoring critical value reaches 100%, the alarm process will be executed immediately.
[0034] Furthermore, in step 5, the floating dock is filled with water and dives. When the caisson reaches the predetermined stable floating draft, the ship and the caisson are separated. The floating dock stops diving to maintain a stable state, and the caisson begins to float. When the caisson is undocking, 50 cm of water is added to each compartment on the basis of the original floating stability to ensure safety during towing. At this time, the caisson is shipped out and the floating dock returns to the caisson prefabrication site.
[0035] Compared with the existing monitoring methods of manual water-splashing plate reading method and visual inspection method, the caisson delivery control device and control method provided by the present invention have the following advantages:
[0036] 1. Introduce sensors and digital communication technology to achieve continuous monitoring of caisson shipment
[0037] Traditional monitoring methods include manual water-splash reading and visual inspection, which have the disadvantages of low measurement accuracy, discontinuity, hysteresis, and poor safety. The accuracy of the liquid level meter of the present invention is 2 mm, and the accuracy of the inclinometer is 0.01 ° , the signal is collected through the digital communication method of the collection box, the data is automatically updated in 1s, and a power supply device is provided to avoid the disadvantages of manual monitoring. At the same time, the water level monitoring of the compartment can directly reflect the flow rate ratio between the first compartment (referring to the compartment with valves in the water-streaming area) and the second compartment (referring to the compartment without valves in the water-streaming area), which is convenient for construction personnel to adjust the water addition rate in time and ensure the stability of the caisson during transportation.
[0038] 2. Through stability evaluation parameters, monitoring data is introduced into management decisions for the first time
[0039] In addition to the data monitoring equipment group, this system also adds a central control room. The central control room has three modules: stability analysis, emergency response and voice broadcast. According to the transmitted data, the qualitative analysis is converted into quantitative analysis. By comparing the detection values of the three stability evaluation parameters of caisson eccentricity, cell head difference and fixed inclination height with the critical values, the stability state of the caisson during transportation is determined, which is convenient for on-site personnel to make scientific decisions based on construction experience.
[0040] Therefore, the present invention realizes a safety management mode that integrates real-time monitoring, dynamic analysis, and danger warning of caisson transportation, meets the project's requirements for progress, safety, and quality, and has the characteristics of originality, efficiency, science, and practicality, providing a precedent for building a smart water transport system. BRIEF DESCRIPTION OF THE DRAWINGS
[0041] The accompanying drawings partially disclose specific embodiments of the present invention, wherein:
[0042] Figure 1 , a schematic diagram of the structure of the present invention;
[0043] Figure 2 , an enlarged view of the structure at A of the present invention;
[0044] Among them, 11. Liquid level meter, 12. Inclinometer, 13. Collection box, 14. Power supply device, 15. Four-core cable, 2. Tugboat, 21. Repeater, 22. Receiver, 23. 485 hub, 24. Central control room 24, 3. Caisson, 31. Sealing cover, 32. Floating hook, 4. Floating dock. DETAILED DESCRIPTION
[0045] like Figure 1 , 2 As shown, the caisson shipping control device provided by the present invention comprises a caisson 3 and a tugboat 2, wherein a data monitoring device is arranged on the caisson 3, and the data monitoring device comprises a liquid level meter 11, an inclinometer 12, a collection box 13, and a power supply device 14; a liquid level meter 11 is arranged at the bottom plate of the cell of the caisson 3, and the front wall and the side wall of the top layer of the caisson 3 are both provided with inclinometers 12; a collection box 13 and a power supply device 14 are arranged on the sealing cover plate 31 of the caisson 3; the power supply device 14 is connected to the collection box 13, and the collection box 13 is connected to the liquid level meter 11 and the inclinometer 12 through a four-core cable 15; a repeater 21 is arranged on the cabin outer frame of the tugboat 2; after the repeater 21 is wirelessly connected to the collection box 13, the bus signal strength is enhanced and continued to be transmitted to the receiver 22; the receiver 22 is wired to the 485 hub 23; the 485 hub 23 transmits the signal to the central control room 24 through a USB data cable.
[0046] Example 1
[0047] The control method of the caisson transport control device provided by the present invention comprises the following steps:
[0048] Step 1, installing a data monitoring device on the caisson 3: before installing the sealing cover of the caisson 3, install a liquid level meter 11 10 cm above the bottom plate of the caisson compartment; arrange an inclinometer 12 on the front wall and side wall of the top layer of the caisson 3; after installing the sealing cover of the caisson 3, install a collection box 13 and a power supply device 14 on the sealing cover 31 of the caisson; connect the power supply device 14 to the collection box 13, and the collection box 13 is connected to the liquid level meter 11 and the inclinometer 12 through a four-core cable 15; then, the caisson 3 starts to move horizontally onto the dock;
[0049] Step 2, caisson 3 shipment:
[0050] After the floating dock 4 loaded with caissons is towed by the tugboat 2 from the caisson prefabrication yard to the caisson pit for positioning, the hydraulic team installs the valve rod on the sealing cover plate 31, and the floating dock 4 opens all the ballast tank valves to start heavy-load diving; when the water inlet valve of the caisson 3 dives below the water surface, the floating dock 4 stops diving, the hydraulic team turns the valve rod, and the caisson 3 starts to be filled with water;
[0051] Step 3, caisson 3 data monitoring and transmission:
[0052] The level meter 11 converts each water depth pressure signal into a bus signal and transmits it to the collection box 13. The inclinometer 12 converts the angle signal between the vertical axis of gravity and the sensitive axis of the internal acceleration sensor into a bus signal and transmits it to the collection box 13. The collection box 13 wirelessly transmits the bus signal to the repeater 21 set up outside the cabin of the tugboat 2. The repeater 21 enhances the bus signal strength and continues to transmit it to the receiver 22 inside the cabin. The receiver transmits the signal to the central control room 24 via a 485 hub to USB data cable.
[0053] Step 4, dynamic stability analysis and emergency response of caisson 3:
[0054] The stability analysis module of the central control room 24 analyzes the bus signal into water level data and converts it into three stability evaluation parameters: caisson eccentricity, cell water level difference and fixed inclination height; if the critical value is reached, the emergency response module is immediately activated to inform the warning of the hazard source, level, time, location and other information; at the same time, the voice broadcast module broadcasts the emergency response information to the on-site management personnel and construction personnel in real time through the mobile phone APP;
[0055] Step 5: Caisson 3 is shipped out and the data monitoring device is recovered:
[0056] After the caisson 3 is shipped out, the level meter 11, the inclinometer 12, the collection box 13, and the power supply device 14 are removed from the caisson 3 and recycled for next use.
[0057] The accuracy of the above level gauge is 2mm, and the accuracy of the inclinometer is 0.01 ° , the signal is collected through the digital communication method of the collection box, the data is automatically updated in 1s, and a power supply device is provided to avoid the disadvantages of manual monitoring. At the same time, the water level monitoring of the compartment can directly reflect the flow rate ratio between the first compartment (referring to the compartment with valves in the water-streaming area) and the second compartment (referring to the compartment without valves in the water-streaming area), which is convenient for construction personnel to adjust the water addition rate in time and ensure the stability of the caisson during transportation.
[0058] The power supply device 14 includes a high-power lithium battery and a solar panel, which are connected by wires; the high-power lithium battery is connected to the collection box 13 via a USB interface. The power supply device 14 supplies power to the collection box 13, which is conducive to the collection box 13 collecting caisson shipping information through a liquid level meter and an inclinometer, and is convenient for realizing a safety management mode integrating real-time monitoring, dynamic analysis, and emergency response of caisson shipping.
[0059] The above-mentioned central control room 24 is arranged in the cab of the tugboat 2 and is powered by the inside of the tugboat. It can meet the safety management mode of the central control room 24 integrating real-time monitoring, dynamic analysis and emergency response, and meet the project's requirements for progress, safety and quality.
[0060] The above-mentioned central control room 24 includes a stability analysis module, an emergency response module and a voice broadcast module; the stability analysis module converts the data transmitted by the collection box 13 into three evaluation parameters of caisson eccentricity, grid water level difference and fixed tilt height through anti-tilting and floating stability to determine the stability, and establishes a three-dimensional dynamic graph to realize the visual management of the caisson 3 during transportation; the emergency response module compares the stability assessment parameters of the stability analysis module with the critical value, and immediately initiates a safety warning if the monitoring data reaches the critical value. The central control room 24 realizes a safety management mode integrating real-time monitoring, dynamic analysis and emergency response of caisson transportation through the coordinated action of the stability analysis module, the emergency response module and the voice broadcast module, which meets the project's requirements for progress, safety and quality, and has the characteristics of originality, efficiency, science and practicality, and provides a precedent for building a smart water transport system.
[0061] The above-mentioned voice broadcast module implements the mobile phone APP notification method, which can regularly broadcast the real-time grid water level, draft depth and inclination angle to the construction personnel, and issue an alarm in time after the safety warning is turned on. The response is timely, which meets the project's requirements for progress, safety and quality, and has good safety.
[0062] Example 2
[0063] Step 1: Install a data monitoring device on caisson 3:
[0064] Before installing the caisson 3 sealing cover, a level gauge 11 is installed 10 cm above the caisson compartment bottom plate. The level gauge 11 is fixed to the floating hook 32 of the caisson 3 by a clamp ring and covered with a waterproof cloth 33. Inclinometers 12 are arranged on the front wall and side wall of the top floor of the caisson 3. Inclinometers 12 are fixed to the outside of the front wall and the outside of the side wall of the caisson 3 through iron expansion pipes. The four-core cable 15 connected between the level gauge 11, the inclinometer 12 and the collection box 13 is temporarily connected to the pre-buried round table on the caisson partition wall because the four-core cable 15 cannot bear force, and insulation measures are taken. After the sealing cover of caisson 3 is installed, the collection box 13 and the power supply device 14 are installed on the sealing cover 31 of the caisson, wherein the power supply device 14 includes a high-power lithium battery and a solar panel, and the high-power lithium battery and the solar panel are connected by wires; the high-power lithium battery is connected to the collection box 13 via a USB interface; the power supply device 14 is connected to the collection box 13, and the reserved four-core cable 15 passes through the hole opened in the upper part of the sealing cover, and then the collection box 13 is connected to the liquid level meter 11 and the inclinometer 12 through the four-core cable 15. After the data monitoring device is installed, the construction personnel fix the collection box 13 and the power supply device 14 with ropes, tie them to one end of the reserved steel bars on the top of the caisson, and cover them with waterproof cloth 33, and the caisson begins to move horizontally onto the dock. The accuracy of the liquid level meter is 2mm, and the accuracy of the inclinometer is 0.01 °The signal is collected through the digital communication method of the collection box. The data is automatically updated in 1s and is equipped with a power supply device to avoid the disadvantages of manual monitoring.
[0065] Step 2, caisson 3 shipment:
[0066] After the floating dock 4 loaded with caissons is towed by the tugboat 2 from the caisson prefabrication yard to the caisson pit for positioning, the hydraulic team installs the valve rod on the sealing cover plate 31, and the floating dock 4 opens all the ballast tank valves and starts to dive with heavy load; when the water inlet valve of the caisson 3 dives below the water surface, the floating dock 4 stops diving, the hydraulic team turns the valve rod, and the caisson 3 starts to be filled with water.
[0067] Step 3, caisson 3 data monitoring and transmission:
[0068] The level gauge 11 arranged on the bottom plate of the caisson compartment converts each water depth pressure signal into a bus signal and transmits it to the collection box 13 through a four-core cable 15. The inclinometer 12 arranged on the top layer of the caisson converts the angle signal between the vertical axis of gravity and the sensitive axis of the internal acceleration sensor into a bus signal and transmits it to the collection box 13 through a four-core cable 15. The collection box 13 is equipped with a short-wave wireless transmitter, which wirelessly transmits the bus signal to the repeater 21 set up outside the cabin of the tugboat 2. The repeater 21 enhances the bus signal strength and continues to transmit it to the receiver 22 inside the cabin; the receiver transmits the signal to the central control room 24 through a 485 hub to USB data cable. The central control room 24 is arranged in the cab of the tugboat 2 and is powered by the inside of the tugboat;
[0069] Step 4, dynamic stability analysis and emergency response of caisson 3:
[0070] During the water filling process of caisson 3, floating dock 4 starts to drain water to keep the caisson in a stable state. The valve stem rotates the valve, and the external water flows into the caisson compartment from the water inlet hole, and the water level of the second compartment (referring to the compartment without valve in the water string area) is leveled with the first compartment (referring to the compartment with valve in the water string area) through the water string hole. At this time, the data monitoring device, as an input device, automatically inputs the monitored format water level and inclination angle data into the central control room, and calculates with the help of the written JAVA program and CPU, and converts them into three stability evaluation parameters: caisson eccentricity, compartment water level difference and fixed inclination height. The central control room compares the actual value of the stability evaluation parameter with the critical value to determine the stability of the caisson at this time. If the critical value is reached, the emergency response is immediately initiated to inform the warning of the source of danger, level, time, location and other information. At the same time, the voice broadcast module broadcasts the emergency response information to the on-site management personnel and construction personnel in real time through the mobile phone APP.
[0071] When the central control room 24 activates the emergency response module, the emergency plan adopts color management and is divided into three levels according to the severity:
[0072] 1) Yellow monitoring warning: if the monitoring threshold exceeds 70%, the warning process will be executed immediately;
[0073] 2) Orange monitoring warning: When the monitoring threshold exceeds 85%, the warning process will continue;
[0074] 3) Red monitoring warning: When the monitoring critical value reaches 100%, the alarm process will be executed immediately.
[0075] The early warning process includes the following steps:
[0076] (1) The monitoring personnel shall immediately notify the project leader and the on-site supervisory engineer by phone, informing them of the on-site information such as the warning hazard source, level, time, and location, and simultaneously initiate the encrypted monitoring procedure.
[0077] (2) Monitoring personnel, project leaders and resident supervision engineers verify the situation on site and confirm the existence of the warning.
[0078] (3) The construction unit and the supervision unit are responsible for organizing relevant departments to jointly analyze the causes of the warning and propose treatment plans.
[0079] (4) After the risk management is completed, the chief supervisor engineer may make suggestions for eliminating the alarm.
[0080] The alarm process includes the following steps:
[0081] (1) The project department shall immediately notify the person in charge of the construction unit and the supervision unit by phone and inform them of the alarm hazard source, level, time, location and other on-site information.
[0082] (2) The project department suspends construction work and evacuates relevant workers from the alarm area. Based on the actual situation, the monitoring personnel will continue to carry out the encrypted monitoring procedures when the personal safety of the monitoring personnel is not involved. When the safety of personnel is involved, the relevant monitoring can be suspended and other safer monitoring methods can be adopted to continue monitoring.
[0083] (3) The monitoring unit will conduct on-site verification together with the supervision unit and construction unit management personnel to confirm the alarm.
[0084] (4) The engineering department of the construction unit is responsible for organizing relevant departments to propose treatment plans.
[0085] (5) After the risk treatment is completed, the supervision unit will put forward suggestions for eliminating the alarm.
[0086] The alarm elimination process includes the following steps:
[0087] (1) After the risk treatment is completed, the supervision unit will make suggestions for eliminating the alarm, and the alarm elimination suggestion will be filled in the alarm elimination application form.
[0088] (2) If the fire alarm is not approved, the construction unit shall implement corresponding rectification measures according to the improvement suggestions put forward by departments at all levels, and continue to maintain the warning and alarm status until the hidden danger is completely eliminated and resubmit the fire alarm suggestion.
[0089] Step 5: Caisson 3 is shipped out and the data monitoring device is recovered:
[0090] The floating dock 4 is filled with water and dives. When the caisson 3 reaches the predetermined stable floating draft, the ship and the caisson are separated. The floating dock stops diving to maintain a stable state, and the caisson 3 begins to float. When the caisson 3 is undocking, 50 cm of water is added to each compartment on the basis of the original floating stability to ensure safety during towing. At this time, the caisson is shipped out and the floating dock 4 returns to the caisson prefabrication site.
[0091] After the caisson 3 is shipped, the level meter 11, inclinometer 12, data collection box 13, and power supply device 14 are removed from the caisson 3 and recycled for next use. The personnel on the upper part of the sealing cover pull the four-core cable 15 from the gap of the sealing cover to remove the level meter 11 from the reserved steel bars on the bottom plate of the grid, and the inclinometer 12 is removed from the top layer of the caisson by loosening the nut. The data collection box 13, power supply device 14 and other equipment are hoisted onto the floating dock, and the central control room continues to remain in the tugboat. Before the floating dock arrives at the caisson prefabrication site, the data monitoring device is installed in advance on the next caisson to be shipped.
Claims
1. A control method for a caisson shipping control device, the caisson shipping control device comprising a caisson (3) and a tugboat (2), wherein: The caisson (3) is provided with a data monitoring device, the data monitoring device comprising a liquid level meter (11), an inclinometer (12), a collection box (13), and a power supply device (14); the liquid level meter (11) is provided at the bottom plate of the cell of the caisson (3); the front wall and the side wall of the top layer of the caisson (3) are both provided with inclinometers (12); the collection box (13) and the power supply device (14) are provided on the sealing cover plate (31) of the caisson (3); the power supply device (14) is connected to the collection box (13), and the collection box (13) is further connected to the liquid level meter (11) and the inclinometer (12); the power supply device (14) comprises a high-power lithium battery and a solar panel, the high-power lithium battery and the solar panel are connected via electric wires; the high-power lithium battery is connected to the collection box (13) via a USB interface; The cabin outer frame of the tugboat (2) is provided with a repeater (21); after the repeater (21) is wirelessly connected to the acquisition box (13), the bus signal strength is enhanced and then transmitted to the receiver (22); the receiver (22) is wiredly connected to the 485 hub (23); the 485 hub (23) transmits the signal to the central control room (24) via a USB data cable; The liquid level meter (11) is fixed to the floating hook (32) of the caisson (3) by a clamp ring and covered with a waterproof cloth (33); the inclinometer (12) is fixed to the outside of the front wall and the outside of the side wall of the caisson (3) by an iron expansion pipe; The central control room (24) is arranged in the cab of the tugboat (2) and is powered by the inside of the tugboat. The core of the central control room (24) includes a stability analysis module, an emergency response module and a voice broadcast module. The stability analysis module converts the data transmitted by the acquisition box (13) into three evaluation parameters, namely, caisson eccentricity, compartment water level difference and fixed inclination height, through anti-tilting and floating stability to determine stability, and establishes a three-dimensional dynamic graph to achieve visual management of the caisson (3) during shipment. The emergency response module compares the stability evaluation parameter of the stability analysis module with a critical value. If the monitoring data reaches the critical value, a safety warning is immediately initiated. When the central control room (24) activates the emergency response module, the emergency plan adopts color management and is divided into three levels according to the severity: 1) Yellow monitoring warning: if the monitoring threshold exceeds 70%, the warning process will be executed immediately; 2) Orange monitoring warning: When the monitoring threshold exceeds 85%, the warning process will continue; 3) Red monitoring warning: When the monitoring critical value reaches 100%, the alarm process will be executed immediately; The voice broadcast module implements the mobile phone APP notification method, which can regularly broadcast the real-time water level, draft depth and tilt angle of the cell to the construction personnel, and issue an alarm in time after the safety warning is turned on; The control method of the caisson transport control device comprises the following steps: Step 1: Install a data monitoring device on the caisson (3): Before installing the sealing cover of the caisson (3), install a liquid level meter (11) 10 cm above the bottom plate of the caisson compartment; Inclinometers (12) are arranged on the front wall and side walls of the top layer of the caisson (3); After the sealing cover plate of the caisson (3) is installed, a collection box (13) and a power supply device (14) are installed on the sealing cover plate (31) of the caisson; The power supply device (14) is connected to the collection box (13), and the collection box (13) is then connected to the liquid level meter (11) and the inclinometer (12); Afterwards, the caisson (3) begins to move horizontally to the dock; The liquid level meter (11) is fixed to the floating hook of the caisson (3) by a clamp ring and covered with a waterproof cloth (33); the inclinometer (12) is fixed to the outside of the front wall and the outside of the side wall of the caisson by an iron expansion tube; the four-core cable (15) connecting the liquid level meter (11), the inclinometer (12) and the collection box (13) is temporarily connected to the pre-buried round table on the partition wall of the caisson, and insulation measures are taken; after the data monitoring device (1) is installed, the collection box (13) and the power supply device (14) are fixed with ropes, tied to one end of the steel bars reserved on the top of the caisson, and covered with a waterproof cloth (33), and the caisson begins to move horizontally onto the dock; Step 2, caisson (3) shipment: After the floating dock (4) loaded with the caisson is towed by the tugboat (2) from the caisson prefabrication site to the caisson pit for positioning, the hydraulic team installs a valve rod on the sealing cover plate (31), and the floating dock (4) opens all ballast tank valves and starts to dive with heavy load; when the water inlet valve of the caisson (3) dives below the water surface, the floating dock (4) stops diving, and the hydraulic team turns the valve rod, and the caisson (3) starts to be filled with water; Step 3, caisson (3) data monitoring and transmission: The level meter (11) converts each water depth pressure signal into a bus signal and transmits it to the collection box (13); the inclinometer (12) converts the angle signal between the gravity vertical axis and the sensitive axis of the internal acceleration sensor into a bus signal and transmits it to the collection box (13); the collection box (13) wirelessly transmits the bus signal to a repeater (21) installed outside the cabin of the tugboat (2); the repeater (21) enhances the bus signal strength and continues to transmit it to the receiver (22) inside the cabin; the receiver transmits the signal to the central control room (24) via a 485 hub to USB data cable; Step 4, caisson (3) dynamic stability analysis and emergency response: The stability analysis module of the central control room (24) analyzes the bus signal into water level data and converts it into three stability evaluation parameters: caisson eccentricity, cell water level difference and fixed inclination height; If the critical value is reached, the emergency response module will be activated immediately to inform the warning of the hazard source, level, time, location and other information; at the same time, the voice broadcast module will broadcast the emergency response information to the on-site management personnel and construction personnel in real time through the mobile phone APP; Step 5: The caisson (3) is shipped out and the data monitoring device is recovered: After the caisson (3) is shipped, the level meter (11), the inclinometer (12), the collection box (13), and the power supply device (14) are removed from the caisson (3) and recycled for next use.
2. The control method of the caisson transport control device according to claim 1, characterized in that: In step 5, the floating dock (4) is filled with water and submerged. When the caisson (3) reaches a predetermined floating stable draft, the ship and the caisson are separated. The floating dock stops diving and maintains a stable state, and the caisson (3) begins to float. When the caisson (3) is undocking, 50 cm of water is added to each compartment on the basis of the original floating stability to ensure safety during the towing process. At this time, the caisson is shipped out and the floating dock (4) returns to the caisson prefabrication site.
Citation Information
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