阅读说明：本技术 沉箱出运控制装置及其控制方法 (Caisson transportation control device and control method thereof ) 是由 胡小文 徐帅 孙超 王艺之 王安琪 马德志 代娜 于 2021-10-25 设计创作，主要内容包括：沉箱出运控制装置及其控制方法,涉及水运工程技术领域,特别是涉及一种沉箱出运控制装置及其控制方法。沉箱上设置有数据监测装置,数据监测装置包括液位计、倾角仪、采集箱、供电装置,所述沉箱的格仓底板处设置有液位计,沉箱顶层的前墙和侧墙均设置有倾角仪,沉箱的封仓盖板上设置有采集箱和供电装置；所述供电装置与采集箱连接,采集箱与液位计和倾角仪连接；所述拖轮设置有中继器；所述中继器通过无线连接采集箱后,将总线信号传输给接收器；所述接收器连接485集线器；所述485集线器将信号传送至中央控制室。本发明实现了沉箱出运实时监测、动态分析、危险预警于一体的安全管理模式,为打造智慧水运施工体系提供了先例。(A caisson transportation control device and a control method thereof relate to the technical field of water transportation engineering, in particular to a caisson transportation control device and a control method thereof. The caisson is provided with a data monitoring device, the data monitoring device comprises a liquid level meter, an inclinometer, a collection box and a power supply device, the liquid level meter is arranged at the bottom plate of the chamber of the caisson, the inclinometer is arranged on the front wall and the side wall of the top layer of the caisson, and the collection box and the power supply device are arranged on a chamber sealing cover plate of the caisson; the power supply device is connected with the collection box, and the collection box is connected with the liquid level meter and the inclinometer; the tug is provided with a repeater; the repeater is wirelessly connected with the acquisition box and then transmits the bus signal to the receiver; the receiver is connected with the 485 concentrator; the 485 hub transmits signals to a central control room. The invention realizes a safety management mode integrating the functions of real-time monitoring, dynamic analysis and danger early warning of caisson delivery, and provides precedent for creating an intelligent water transport construction system.)

1. A caisson transport control device comprises a caisson (3) and a tug (2), and is characterized in that a data monitoring device is arranged on the caisson (3), the data monitoring device comprises a liquid level meter (11), an inclinometer (12), a collection box (13) and a power supply device (14), the liquid level meter (11) is arranged at a bottom plate of a grid bin of the caisson (3), the inclinometer (12) is arranged on both the front wall and the side wall of the top layer of the caisson (3), and the collection box (13) and the power supply device (14) are arranged on a bin sealing cover plate (31) of the caisson (3); the power supply device (14) is connected with the collection box (13), and the collection box (13) is connected with the liquid level meter (11) and the inclinometer (12);

a repeater (21) is arranged on an outer frame of the cabin of the tug (2); after the repeater (21) is wirelessly connected with the collection box (13), the bus signal strength is enhanced and is continuously transmitted to the receiver (22); the receiver (22) is connected with a 485 concentrator (23) in a wired mode; the 485 hub (23) transmits signals to a central control room (24) through a USB data line.

2. The caisson transportation control device according to claim 1, wherein the level gauge (11) is fixed on the upper floating hook (32) of the caisson (3) by a snap ring and covered with a waterproof cloth (33); the inclinometer (12) is fixed on the outer side of the front wall and the outer side of the side wall of the caisson (3) through iron expansion pipes.

3. The caisson transportation control device of claim 1, wherein the power supply means (14) comprises high power lithium batteries and solar panels connected by wires; the high-power lithium battery is connected with the collection box (13) through the USB interface.

4. Caisson handling control according to claim 1, characterised in that the central control room (24) is arranged inside the driving cab of the tug (2), which is powered from inside the tug.

5. The caisson transportation control device of claim 1, wherein the central control room (24) core comprises a stability analysis module, an emergency response module and a voice broadcast module; the stability analysis module converts data transmitted by the collection box (13) into three evaluation parameters of caisson eccentricity, bin water head and fixed inclination height through anti-inclination and floating stability to judge stability, and establishes a three-dimensional dynamic graph to realize visual management in the shipping process of the caisson (3); and the emergency response module compares the stability evaluation parameter of the stability analysis module with a critical value, and immediately starts safety early warning if the monitoring data reaches the critical value.

6. The caisson transportation control device of claim 5, wherein the voice broadcast module pushes a mobile phone APP notification mode to broadcast real-time water level, draft and inclination angle of the caisson to constructors at regular time and to send out an alarm in time after the safety precaution is turned on.

7. The method of controlling a caisson discharging control apparatus according to claim 1, comprising the steps of:

step 1, installing a data monitoring device on a caisson (3):

before a cabin sealing cover plate of the caisson (3) is installed, a liquid level meter (11) is installed at a position 10cm above a bottom plate of a cabin of the caisson;

inclinometers (12) are respectively arranged on the front wall and the side wall of the top layer of the caisson (3);

after a cabin sealing cover plate of the caisson (3) is installed, a collection box (13) and a power supply device (14) are installed on a cabin sealing cover plate (31) of the caisson;

the power supply device (14) is connected with the collection box (13), and the collection box (13) is connected with the liquid level meter (11) and the inclinometer (12);

then, the caisson (3) starts to translate and dock;

step 2, transporting out the caisson (3):

after a floating dock (4) loading a caisson is hauled to a caisson pit from a caisson prefabrication field by a tug (2) for positioning, a water crew installs a valve rod on a cover plate (31) of the sealing bin, and the floating dock (4) opens all ballast tank valves to start to carry out heavy load submerging; when the water inlet valve of the caisson (3) submerges below the water surface, the floating dock (4) stops submerging, the hydraulic power crew rotates the valve rod, and the caisson (3) starts to be filled with water;

step 3, monitoring and transmitting data of the caisson (3):

the liquid level meter (11) converts the pressure signals of various water depths into bus signals and transmits the bus signals to the acquisition box (13), and the inclinometer (12) converts the signals of an included angle between a gravity vertical axis and a sensitive axis of the internal acceleration sensor into the bus signals and transmits the bus signals to the acquisition box (13); the collection box (13) wirelessly transmits the bus signal to a repeater (21) erected outside a cabin of the tug (2), and the repeater (21) continuously transmits the bus signal strength enhancement to a receiver (22) inside the cabin; the receiver converts the signal into a USB data line through the 485 concentrator and transmits the signal to a central control room (24);

step 4, the caisson (3) dynamic stability analysis and emergency response:

a stability analysis module of the central control room (24) analyzes the bus signal into water level data and converts the water level data into stability evaluation parameters of three items, namely caisson eccentricity, bin water level difference and fixed inclination height;

if the critical value is reached, an emergency response module is started immediately to inform information such as early warning danger source, level, time, position and the like; meanwhile, the voice broadcasting module broadcasts the emergency response information to field management personnel and constructors in real time in a mobile phone APP mode;

step 5, finishing the shipment of the caisson (3), and recovering the data monitoring device:

after the caisson (3) is transported out, the liquid level meter (11), the inclinometer (12), the collection box (13) and the power supply device (14) are taken down from the caisson (3) and recovered for the next use.

8. The control method of the caisson discharging control device according to claim 7, wherein in step 1, the level gauge (11) is fixed on the upper floating hook of the caisson (3) by a snap ring and covered with a waterproof cloth (33); the inclinometer (12) is fixed on the outer side of the front wall and the outer side of the side wall of the caisson by adopting iron expansion pipes; a four-core cable (15) connected among the liquid level meter (11), the inclinometer (12) and the collection box (13) is temporarily connected with a pre-embedded circular table on a caisson partition wall, 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 through ropes, fastened to one end, provided with a reserved steel bar, of the top of the caisson, covered with waterproof cloth (33), and the caisson starts to move horizontally to dock.

9. The method for controlling a caisson discharging control device according to claim 7, wherein in step 4, when the central control room (24) activates the emergency response module, the emergency scenario employs color management, divided into three levels according to severity:

1) yellow monitoring and early warning: if the monitoring threshold value is exceeded 70%, immediately executing an early warning process;

2) orange monitoring and early warning: if the monitoring threshold value is exceeded 85%, the early warning process is continuously executed;

3) red monitoring and early warning: and when the monitoring threshold value is reached to 100%, an alarm process is immediately executed.

10. The control method of the caisson discharging control device according to claim 7, wherein in step 5, the floating dock (4) is filled with water to submerge, and when the caisson (3) reaches a predetermined floating stable draft, the ship and the caisson are separated; the floating dock suspends, keeps a stable state and starts to float the caisson (3); after the caisson (3) is undocked, 50cm of water is added to each compartment on the basis of the original floating stability, so that the safety in the towing process is ensured, the caisson is shipped out at the moment, and the floating dock (4) returns to the caisson prefabricated field.

Technical Field

The invention relates to the technical field of water transport engineering, in particular to a caisson discharging control device and a caisson discharging control method.

Background

At present, with the global trend deepening of the world, port business types are wide and professional, higher challenges are provided for wharf construction, and the method is specifically characterized in that:

1. the construction period of the wharf project is short, the task is heavy, and the owner requires investment projects to be put into production as soon as possible. The caisson is shipped as a key point of the engineering progress, the efficiency is improved by ensuring the safety and the quality, and the control point is on the dynamic monitoring of the stability of the caisson.

2. The structural forms of the caisson are gradually diversified, such as wave dissipation hole open type, thin and high type, buttress ribbed type and the like. The stability of the special caisson is controlled with increased difficulty in the process of shipping, which is easy to cause casualties and economic loss.

The existing caisson shipment monitoring mode is that water is manually pumped to obtain water level data of a grid bin, and the inclination posture of the caisson is observed by an eye measuring method. Because the caisson needs to be transported by tide, construction is mostly carried out at night, the dynamic data and the whole posture of the caisson cannot be accurately mastered by manual measurement, the precision is low, the retained data cannot be continuously acquired, and a greater safety risk exists; the caisson stability judgment mainly depends on the construction experience of a hydraulic power crew, is free of theoretical knowledge support, and has the defects of subjectivity and locality.

Disclosure of Invention

The invention aims to provide a caisson transportation control device, so as to achieve a safety management mode integrating real-time monitoring, dynamic analysis and danger early warning of caisson transportation and meet the requirements of engineering on progress, safety and quality.

The caisson transportation control device provided by the invention comprises a caisson and a tug, and is characterized in that a data monitoring device is arranged on the caisson, the data monitoring device comprises a liquid level meter, an inclinometer, a collection box and a power supply device, the liquid level meter is arranged at a bottom plate of a grid chamber of the caisson, the inclinometer is arranged on a front wall and a side wall of the top layer of the caisson, and the collection box and the power supply device are arranged on a cover plate of the caisson for sealing the chamber; the power supply device is connected with the collection box, and the collection box is connected with the liquid level meter and the inclinometer;

a repeater is arranged on an outer frame of the cabin of the tug; after the repeater is wirelessly connected with the acquisition box, the repeater continuously transmits the bus signal strength enhancement to the receiver; the receiver is connected with a 485 concentrator in a wired mode; the 485 hub transmits signals to the central control room through a USB data line.

Further, the liquid level meter is fixed on an upper floating hook of the caisson by a snap ring and covered with waterproof cloth; the inclinometer is fixed on the outer side of the front wall and the outer side of the side wall of the caisson through the iron expansion pipes.

Furthermore, the power supply device comprises a high-power lithium battery and a solar panel, and the high-power lithium battery and the solar panel are connected through a wire; the high-power lithium battery is connected with the collection box through the USB interface.

Further, the central control room is arranged in the driving cab of the tug and is powered by the interior of the tug. The central control room comprises a stability analysis module, an emergency response module and a voice broadcast module; the stability analysis module converts data transmitted by the collection box into three evaluation parameters of caisson eccentricity, bin water level difference and fixed inclination height through anti-inclination and floating stability to judge the stability, and establishes a three-dimensional dynamic graph to realize visual management in the caisson delivery process; and the emergency response module compares the stability evaluation parameter of the stability analysis module with a critical value, and immediately starts safety early warning if the monitoring data reaches the critical value.

Further, the voice broadcast module carries out cell-phone APP notice mode, can regularly report real-time check storehouse water level, draft and inclination to constructor to in time send out the police dispatch newspaper after safety precaution opens.

The invention provides a control method of a caisson discharging control device, which is characterized by comprising the following steps:

step 1, installing a data monitoring device on the caisson:

before the caisson sealing cover plate is installed, a liquid level meter is installed at a position 10cm above the caisson grid chamber bottom plate;

arranging inclinometers on the front wall and the side wall of the top layer of the caisson respectively;

after the caisson bin sealing cover plate is installed, the collecting box and the power supply device are installed on the bin sealing cover plate of the caisson;

connecting a power supply device with a collection box, and connecting the collection box with a liquid level meter and an inclinometer;

then, the caisson starts to translate and dock;

step 2, transporting out the caisson:

after a floating dock loaded with a caisson is hauled to a caisson pit from a caisson prefabrication field by a tug boat for positioning, a water crew installs a valve rod on a cover plate of the sealing cabin, and the floating dock opens all ballast tank valves to start heavy load submerging; when the caisson water inlet valve submerges below the water surface, the floating dock stops submerging, the hydraulic power crew rotates the valve rod, and the caisson starts to be filled with water;

step 3, caisson data monitoring and transmission:

the liquid level meter converts each water depth pressure intensity signal into a bus signal and transmits the bus signal to the acquisition box, and the inclinometer converts an included angle signal between the gravity vertical shaft and a sensitive shaft of the internal acceleration sensor into a bus signal and transmits the bus signal to the acquisition box; the collecting box wirelessly transmits the bus signal to a repeater erected outside a towing ship cabin, and the repeater continuously transmits the bus signal strength enhancement to a receiver inside the cabin; the receiver converts the signal into a USB data line through the 485 concentrator and transmits the signal to the central control room;

step 4, caisson dynamic stability analysis and emergency response:

the stability analysis module of the central control room analyzes the bus signal into water level data and converts the water level data into stability evaluation parameters of three items, namely caisson eccentricity, bin water level difference and fixed inclination height;

if the critical value is reached, an emergency response module is started immediately to inform information such as early warning danger source, level, time, position and the like; meanwhile, the voice broadcasting module broadcasts the emergency response information to field management personnel and constructors in real time in a mobile phone APP mode;

step 5, completing the shipment of the caisson, and recovering the data monitoring device:

and after the caisson is transported out, taking down the liquid level meter, the inclinometer, the collection box and the power supply device from the caisson and recycling the liquid level meter, the inclinometer, the collection box and the power supply device for the next use.

Further, in the step 1, the liquid level meter is fixed on an upper floating hook of the caisson by a snap ring and covered with waterproof cloth 33; the inclinometer adopts an iron expansion pipe fixed on the outer side of the front wall and the outer side of the side wall of the caisson; a four-core cable connected among the liquid level meter, the inclinometer and the collection box is temporarily connected with a pre-embedded circular truncated cone on a 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 through a rope, the collection box and the power supply device are fastened to one end, provided with a reserved steel bar, of the top of the caisson, the waterproof cloth 33 is covered, and the caisson starts to move horizontally and goes to the dock.

Further, in step 4, when the central control room starts the emergency response, the scheme adopts color management, and is divided into three levels according to the severity:

1) yellow monitoring and early warning: if the monitoring threshold value is exceeded 70%, immediately executing an early warning process;

2) orange monitoring and early warning: if the monitoring threshold value is exceeded 85%, the early warning process is continuously executed;

3) red monitoring and early warning: and when the monitoring threshold value is reached to 100%, an alarm process is immediately executed.

Further, in step 5, water is injected into the floating dock to submerge, and when the caisson reaches the preset floating stable draft, the ship and the caisson are separated; the floating dock suspends, keeps a stable state and starts to float; after the caisson is undocked, 50cm of water is added into each compartment on the basis of the original floating stability, so that the safety in the towing process is ensured, the caisson is shipped out at the moment, and the floating dock returns to the caisson prefabrication field.

Compared with the existing two monitoring modes of a manual water beating plate reading method and a visual measuring method, the caisson delivery control device and the control method thereof provided by the invention have the following advantages:

1. sensor and digital communication technology are introduced to realize continuous monitoring of caisson delivery

The traditional monitoring mode is two modes of manual water beating plate reading and visual measurement, and has the defects of low measurement precision, discontinuity, hysteresis and poor safety. The liquid level meter of the invention has the precision of 2mm and the precision of the inclinometer of 0.01^°The acquisition box is used for acquiring signals in a digital communication mode, the automatic data updating time is 1s, and a power supply device is provided, so that the defect of manual monitoring can be overcome. Meanwhile, the water level monitoring of the grid bins can directly reflect the flow rate ratio between the grid bins with valves in the first bin-designated water stringing area and the grid bins without valves in the second bin-designated water stringing area, so that the constructors can adjust the water adding rate in time, and the stability of the caisson in the delivery process is ensured.

2. Introducing monitoring data into management decision for the first time through stability evaluation parameters

Besides the data monitoring device set, the system is additionally provided with a central control room. The central control room is provided with three modules of stability analysis, emergency response and voice broadcast, qualitative analysis is converted into quantitative analysis according to transmitted data, and the stable state of the caisson in the shipping process is judged by comparing three stability evaluation parameter detection values of the caisson eccentricity, the lattice head difference and the fixed inclination height with a critical value, so that field personnel can make a scientific decision by combining construction experience.

Therefore, the invention realizes a safety management mode integrating the real-time monitoring, dynamic analysis and danger early warning of the caisson transportation, meets the requirements of the engineering on the progress, safety and quality, has the characteristics of originality, high efficiency, science and practicality, and provides precedent for creating a smart water transportation system.

Drawings

The accompanying drawings disclose, in part, specific embodiments of the present invention, wherein,

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is an enlarged view of the structure at A of the present invention;

the system comprises a liquid level meter 11, a liquid level meter 12, an inclinometer 13, a collection box 14, a power supply device 15, a four-core cable 2, a tug wheel 21, a repeater 22, a receiver 23, a 485 concentrator 24, a central control room 24, a caisson 31, a cabin sealing cover plate 32, an upper floating hook 4 and a floating dock.

Detailed Description

As shown in fig. 1 and 2, the caisson transportation control device provided by the invention comprises a caisson 3 and a tug 2, wherein a data monitoring device is arranged on the caisson 3, the data monitoring device comprises a liquid level meter 11, an inclinometer 12, a collection box 13 and a power supply device 14, the liquid level meter 11 is arranged at the bottom plate of a compartment of the caisson 3, the inclinometer 12 is arranged on both the front wall and the side wall of the top layer of the caisson 3, and the collection box 13 and the power supply device 14 are arranged on a cabin sealing cover plate 31 of the caisson 3; the power supply device 14 is connected with the collection box 13, and the collection box 13 is connected with the liquid level meter 11 and the inclinometer 12 through a four-core cable 15; a repeater 21 is arranged on the outer frame of the cabin of the tug 2; after the repeater 21 is wirelessly connected with the collection box 13, the bus signal strength is enhanced and is continuously transmitted to the receiver 22; the receiver 22 is wired to the 485 hub 23; the 485 hub 23 transmits signals to the central control room 24 through USB data lines.

Example 1

The invention provides a control method of a caisson discharging control device, which comprises the following steps:

step 1, installing a data monitoring device on the caisson 3: before a cabin sealing cover plate of the caisson 3 is installed, a liquid level meter 11 is installed at a position 10cm above a bottom plate of a cabin of the caisson; inclinometers 12 are respectively arranged on the front wall and the side wall of the top layer of the caisson 3; after the cover plate of the caisson 3 for sealing the chamber is installed, the collecting box 13 and the power supply device 14 are installed on the cover plate 31 for sealing the chamber of the caisson; the power supply device 14 is connected with the collection box 13, and the collection box 13 is connected with the liquid level meter 11 and the inclinometer 12 through the four-core cable 15; thereafter, caisson 3 begins to translate into dock;

step 2, transporting out the caisson 3:

after a floating dock 4 loading a caisson is hauled to a caisson pit from a caisson prefabrication field by tugboats 2 for positioning, a hydraulic power crew installs a valve rod on a cover plate 31 of the caisson, and the floating dock 4 opens all ballast tank valves to start heavy load submerging; when the water inlet valve of the caisson 3 submerges below the water surface, the floating dock 4 stops submerging, the hydraulic power crew rotates the valve rod, and the caisson 3 starts to inject water;

step 3, caisson 3 data monitoring and transmission:

the liquid level meter 11 converts each water depth pressure intensity signal into a bus signal and transmits the bus signal to the acquisition box 13, and the inclinometer 12 converts an included angle signal between a gravity vertical shaft and a sensitive shaft of the internal acceleration sensor into a bus signal and transmits the bus signal to the acquisition box 13; the collection box 13 wirelessly transmits the bus signal to a repeater 21 erected outside the cabin of the tug 2, and the repeater 21 continuously transmits the bus signal strength enhancement to a receiver 22 inside the cabin; the receiver converts the signal to the central control room 24 through a 485 concentrator-USB data line;

step 4, the 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 the water level data into stability evaluation parameters of three items, namely caisson eccentricity, bin water level difference and fixed inclination height; if the critical value is reached, an emergency response module is started immediately to inform information such as early warning danger source, level, time, position and the like; meanwhile, the voice broadcasting module broadcasts the emergency response information to field management personnel and constructors in real time in a mobile phone APP mode;

step 5, the caisson 3 is transported out, and the data recovery monitoring device comprises:

after the caisson 3 is transported out, the liquid level meter 11, the inclinometer 12, the collection box 13 and the power supply device 14 are taken down from the caisson 3 and recovered for the next use.

The precision of the liquid level meter is 2mm, and the precision of the inclinometer is 0.01^°The acquisition box is used for acquiring signals in a digital communication mode, the automatic data updating time is 1s, and a power supply device is provided, so that the defect of manual monitoring can be overcome. Meanwhile, the water level monitoring of the grid bins can directly reflect the flow rate ratio between the grid bins with valves in the first bin-designated water stringing area and the grid bins without valves in the second bin-designated water stringing area, so that the constructors can adjust the water adding rate in time, and the stability of the caisson in the delivery process is ensured.

The power supply device 14 comprises a high-power lithium battery and a solar panel, and the high-power lithium battery and the solar panel are connected through a wire; the high-power lithium battery is connected with the collection box 13 through a USB interface. The power supply device 14 supplies electric energy for the collection box 13, facilitates the collection box 13 to collect caisson transportation information through a liquid level meter and an inclinometer, and is convenient for realizing a safe management mode integrating caisson transportation real-time monitoring, dynamic analysis and emergency response.

The central control room 24 is arranged in the driving cab of the tug 2 and is powered by the interior of the tug, so that a safety management mode integrating real-time monitoring, dynamic analysis and emergency response of the central control room 24 can be met, and the requirements of engineering on progress, safety and quality are met.

The central control room 24 comprises 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, bin water level difference and fixed inclination height through anti-inclination and floating stability to judge the stability, and establishes a three-dimensional dynamic graph to realize visual management in the process of shipping the caisson 3; and the emergency response module compares the stability evaluation parameter of the stability analysis module with a critical value, and immediately starts safety early warning if the monitoring data reaches the critical value. The central control room 24 realizes the safe management mode of the caisson transportation real-time monitoring, dynamic analysis and emergency response in an integrated manner through the synergistic effect of the stability analysis module, the emergency response module and the voice broadcast module, meets the requirements of the engineering on progress, safety and quality, has the characteristics of originality, high efficiency, science and practicality, and provides precedent for creating a smart water transportation system.

The mobile phone APP notification mode is pushed by the voice broadcast module, the real-time water level, the draft and the inclination angle of the check bin can be broadcasted to constructors regularly, an alarm is timely sent out after the safety early warning is started, the response is timely, the requirements of the project on the progress, the safety and the quality are met, and the safety is good.

Example 2

Step 1, installing a data monitoring device on the caisson 3:

before the caisson 3 bin sealing cover plate is installed, a liquid level meter 11 is installed at the position 10cm above the bottom plate of the caisson grid bin, and the liquid level meter 11 is fixed by a snap ringFixed on the upper floating hook 32 of the caisson 3 and covered with a waterproof cloth 33; inclinometers 12 are respectively arranged on the front wall and the side wall of the top layer of the caisson 3, and the inclinometers 12 are fixed on the outer side of the front wall and the outer side of the side wall of the caisson 3 through iron expansion pipes. The four-core cable 15 connected among the liquid level meter 11, the inclinometer 12 and the collection box 13 is temporarily connected with the embedded round table on the caisson partition wall because the four-core cable 15 cannot bear force, and insulation measures are taken. After the bin sealing cover plate of the caisson 3 is installed, the collecting box 13 and the power supply device 14 are installed on the bin sealing cover plate 31 of the caisson, wherein the power supply device 14 comprises a high-power lithium battery and a solar panel which are connected through a wire; the high-power lithium battery is connected with the collection box 13 through a USB interface; the power supply device 14 is connected with the collection box 13, the reserved four-core cable 15 penetrates through a hole formed in the upper portion of the bin sealing cover plate, and then the collection box 13 is connected with the liquid level meter 11 and the inclinometer 12 through the four-core cable 15. After the data monitoring device is installed, a constructor fixes the collection box 13 and the power supply device 14 by using a rope, fastens the collection box and the power supply device at one end of a reserved steel bar at the top of the caisson, covers the waterproof cloth 33, and enables the caisson to move horizontally to dock. Wherein the precision of the liquid level meter is 2mm, and the precision of the inclinometer is 0.01^°The acquisition box is used for acquiring signals in a digital communication mode, the automatic data updating time is 1s, and a power supply device is provided, so that the defect of manual monitoring can be overcome.

Step 2, transporting out the caisson 3:

after a floating dock 4 loading a caisson is hauled to a caisson pit from a caisson prefabrication field by tugboats 2 for positioning, a hydraulic power crew installs a valve rod on a cover plate 31 of the caisson, and the floating dock 4 opens all ballast tank valves to start heavy load submerging; when the water inlet valve of the caisson 3 submerges below the water surface, the floating dock 4 stops submerging, the hydraulic power crew rotates the valve rod, and the caisson 3 starts to be filled with water.

Step 3, caisson 3 data monitoring and transmission:

the liquid level meter 11 arranged on the bottom plate of the caisson grid bin converts water depth pressure signals into bus signals and transmits the bus signals to the collection box 13 through the four-core cable 15, and the inclinometer 12 arranged on the top layer of the caisson converts included angle signals between the gravity vertical axis and the sensitive axis of the internal acceleration sensor into bus signals and transmits the bus signals to the collection box 13 through the four-core cable 15. Short wave wireless transmitting equipment is arranged in the acquisition box 13, bus signals are wirelessly transmitted to a repeater 21 erected outside a cabin of the tug 2, and the repeater 21 enhances the strength of the bus signals and continuously transmits the enhanced strength of the bus signals to a receiver 22 in the cabin; the receiver converts the signal into a USB data wire through a 485 concentrator and transmits the signal to a central control room 24, and the central control room 24 is arranged in a driving cab of the tug 2 and is powered by the interior of the tug;

step 4, the caisson 3 dynamic stability analysis and emergency response:

in the water injection process of the caisson 3, the floating dock 4 starts to drain water, and the caisson is kept in a stable state. The valve rod rotates the valve, external water flow is poured into the caisson grid chamber from the water inlet hole, and the water level of the second chamber (the grid chamber without the valve in the water stringing area) is leveled with the water level of the first chamber (the grid chamber with the valve in the water stringing area) through the water stringing hole. At the moment, the data monitoring device is used as an input device, the monitored water level in the format and the monitored inclination angle data are automatically input into the central control room, and are calculated by means of a written JAVA program and a CPU (Central processing Unit) to be converted into three stability evaluation parameters of the caisson eccentricity, the bin water head and the fixed inclination height. The central control room compares the stability evaluation parameter actual value with the critical value to judge the stable state of the caisson at the moment. And if the critical value is reached, immediately starting emergency response to inform information such as early warning danger source, level, time, position and the like. Meanwhile, the voice broadcasting module broadcasts emergency response information to field management personnel and constructors in real time in a mobile phone APP mode.

When the central control room 24 starts the emergency response module, the emergency scheme adopts color management, and is divided into three levels according to the severity:

1) yellow monitoring and early warning: if the monitoring threshold value is exceeded 70%, immediately executing an early warning process;

2) orange monitoring and early warning: if the monitoring threshold value is exceeded 85%, the early warning process is continuously executed;

3) red monitoring and early warning: and when the monitoring threshold value is reached to 100%, an alarm process is immediately executed.

The early warning process comprises the following steps:

(1) monitoring personnel call to inform a project leader and a station supervision engineer at the first time, inform site information such as early warning danger sources, levels, time, positions and the like, and simultaneously start an encryption monitoring program.

(2) Monitoring personnel, project leaders, premise supervision engineers and site verification conditions, and confirming the existence of early warning facts.

(3) The construction unit and the supervision unit are responsible for organizing relevant departments to jointly analyze the early warning reason and put forward a processing scheme.

(4) After the risk processing is finished, the chief supervisory engineer can put forward an alarm-eliminating suggestion.

The alarm process comprises the following steps:

(1) the project department calls the construction unit and the supervisor unit in the first time to inform the construction unit and the supervisor unit of site information such as alarming hazard source, level, time, position and the like.

(2) And (5) suspending construction operation at the project department and evacuating the related operating personnel in the alarm area. Monitoring personnel continue to encrypt the monitoring program according to actual conditions when the personal safety of the monitoring personnel is not involved, related monitoring can be suspended when the personal safety is involved, and other safer monitoring modes are adopted for continuous monitoring.

(3) The monitoring unit can carry out on-site verification with the management personnel of the supervision unit and the construction unit, and the monitoring unit confirms and alarms.

(4) The engineering department of the construction unit is responsible for organizing relevant departments to put forward treatment schemes.

(5) And after the risk processing is finished, the supervision unit provides a warning-eliminating suggestion.

Wherein, the alarm-eliminating flow comprises the following steps:

(1) after the risk processing is finished, the supervision unit provides a police-clearing suggestion, and the police-clearing suggestion fills a police-clearing application form.

(2) If the police are not approved, the construction unit implements corresponding correction measures according to the improvement opinions proposed by all levels of departments and continuously maintains the pre-warning and alarming states. And re-submitting the alarm-eliminating suggestions until the hidden dangers are completely eliminated.

Step 5, the caisson 3 is transported out, and the data recovery monitoring device comprises:

the floating dock 4 is injected with water to submerge, and when the caisson 3 reaches the preset floating stable draft, the ship and the caisson are separated; the floating dock suspends, keeps a stable state and starts to float the caisson 3; after the caisson 3 is undocked, 50cm of water is added to each compartment on the basis of the original floating stability, so that the safety in the towing process is ensured, the caisson is shipped out at the moment, and the floating dock 4 returns to the caisson prefabrication field.

After the caisson 3 is transported out, the liquid level meter 11, the inclinometer 12, the collection box 13 and the power supply device 14 are taken down from the caisson 3 and recovered for the next use. Personnel on the upper portion of the cabin sealing cover plate pull the four-core cable 15 from a gap of the cabin sealing cover plate to take the liquid level meter 11 out of a reserved steel bar of the bottom plate of the cabin, and the inclinometer 12 is taken out from the top layer of the caisson by unscrewing the nut. The collection box 13, the power supply device 14 and other equipment are hoisted to the floating dock, and the central control room is continuously left in the tug. Before the floating dock arrives at the caisson prefabrication field, the data monitoring device is installed on the next caisson to be shipped in advance.