In-hole-seabed combined seabed shield tunnel advanced detection device and method

Abstract

The invention belongs to the field of seabed shield tunnel resistivity method detection. According to the in-hole-seabed combined seabed shield tunnel advanced detection device and method, a transmitter unit carried in a main control room of a shield tunneling machine is connected with a transmitting electrode unit through a cable, and the transmitting electrode unit is a shield cutterhead and a shield shield; a receiver unit used for being arranged on a detection ship is connected with a receiving electrode unit through a traction cable, the receiving electrode unit is a receiving electrode system composed of a plurality of independent receiving electrodes arranged in an array mode, and the receiving electrode unit is used for being arranged in a seabed detection area. The subsea tunnel tunneling efficiency and detection efficiency are improved, the space in a shield tunnel is saved, personnel safety is guaranteed, and instrument abrasion is reduced.

Description

Technical Field

[0001] The invention relates to the field of resistivity detection of submarine shield tunnels, and in particular to an in-hole-seabed combined submarine shield tunnel advance detection device and method. Background Art

[0002] The statements in this section merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] As a key control project to break through the natural barriers in the sea, connect the straits and bays, and consolidate coastal defense, the submarine tunnel has entered an unprecedented period of rapid development. Compared with railway ferries and cross-sea bridges, submarine tunnels do not affect shipping, are not affected by environmental factors such as bad weather and ocean currents, can operate around the clock, have good earthquake resistance, and are highly safe in combat readiness. Therefore, submarine tunnels are increasingly being used as cross-sea transportation facilities internationally.

[0004] Numerous submarine tunnel projects have shown that the unique geological effects such as the collision of sea and land plates and the impact of seawater erosion have created complex geological conditions such as submarine fractures, strong weathering zones, and karst. Submarine tunnels are very likely to induce serious sudden water disasters when crossing large-scale unfavorable geology. Therefore, the prevention of sudden water disasters in tunnels has become a key issue in the construction of submarine tunnels. The inventors found that the construction of submarine tunnels mostly uses shield construction. Artificial resistivity detection requires a certain amount of space on the face, which will slow down the speed of shield excavation and reduce the construction rate. Summary of the invention

[0005] In order to address the deficiencies in the prior art, the present invention provides an in-tunnel-seabed combined submarine shield tunnel advance detection device and method, which improves the efficiency of submarine tunnel excavation and detection, saves space in the shield tunnel, ensures personnel safety, and reduces instrument wear.

[0006] In order to achieve the above object, the present invention adopts the following technical solution: In a first aspect, the present invention provides an in-hole-seabed combined submarine shield tunnel advance detection device.

[0007] A combined in-hole and seabed submarine shield tunnel advance detection device comprises: a transmitter unit, a receiver unit, a transmitting electrode unit and a receiving electrode unit; The transmitter unit mounted in the main control room of the shield machine is connected to the transmitting electrode unit through a cable, and the transmitting electrode unit is a shield cutter head and a shield; The receiver unit arranged on the detection ship is connected to the receiving electrode unit through an entanglement cable. The receiving electrode unit is a receiving electrode system composed of multiple independent receiving electrodes arranged in an array. The receiving electrode unit is used to be arranged in the seabed detection area.

[0008] As a further limitation of the first aspect of the present invention, the transmitter unit includes: a power filter module, a power switch, a signal interpretation module, a constant voltage control module, a constant current control module, a current data receiving module, a voltage data receiving module and a transmitting switch, the AC power supply is connected to the power filter module, the power filter module is connected to the power switch, and the power switch is connected to the signal interpretation module; The signal interpretation module is connected to the constant voltage control module and the constant current control module respectively, the constant voltage control module and the constant current control module are connected to the transmitting switch respectively, and the transmitting switch is connected to the transmitting electrode unit; The current data receiving module, the voltage data receiving module and the signal interpretation module are respectively connected to the computer of the shield main control room.

[0009] As a further limitation of the first aspect of the present invention, the signal interpretation module is used to receive the transmission signal set in the computer of the shield main control room, and control the transmission work of the constant voltage control module or the constant current control module; the constant voltage control module and constant current control module of the transmitter unit are used to execute the set transmission tasks and control the size of the transmission current and the transmission voltage.

[0010] As a further limitation of the first aspect of the present invention, the transmitter unit further includes an indicator light, the indicator light is used to indicate the state of the transmitter unit, the off state indicates that the transmitter unit is turned off and not connected to the power supply, the first color state indicates that the power supply is connected but not transmitting, and the second color state indicates that the transmitter unit is transmitting; The current data receiving module and the voltage data receiving module are used to collect the emitted current and voltage after the transmitter unit emits current, and transmit them to the shield main control room computer. The shield main control room computer displays the actual emission signal of the transmitter unit.

[0011] As a further limitation of the first aspect of the present invention, the receiver unit includes: a power switch unit, a data acquisition module, a Wi-Fi module, a GPS positioning module, a data transmission module, an electrode information transmission module and a receiving electrode access module; The data acquisition module is connected to the data transmission module, the data transmission module is connected to the Wi-Fi module, the Wi-Fi module is connected to the debugging computer, the receiving electrode access module is connected to each independent receiving electrode of the receiving electrode system, the receiving electrode access module is connected to the electrode information transmission module, and the electrode information transmission module is connected to the test computer.

[0012] As a further limitation of the first aspect of the present invention, the receiving electrode system includes: a rectangular frame structure, a plurality of independent receiving electrodes arranged in an array, a plurality of annular fixing rings are connected to the rectangular frame structure, the inner walls of the annular fixing rings are connected to the side walls of the receiving electrodes through springs, and a counterweight block is connected to the top of the independent receiving electrode.

[0013] As a further limitation of the first aspect of the present invention, the GPS positioning module is fixed on the rectangular frame structure.

[0014] As a further limitation of the first aspect of the present invention, each independent receiving electrode of the receiving electrode system is respectively connected to a measuring cable, and the measuring cable is connected to an electrode information transmission module of the receiver unit.

[0015] As a further limitation of the first aspect of the present invention, the detection ship is connected to the rectangular frame structure through a traction steel cable, and the traction steel cable and the measuring cable are integrated into an involvement cable.

[0016] In a second aspect, the present invention provides an operating method for an in-hole-seabed combined submarine shield tunnel advance detection device.

[0017] An operating method of a combined in-hole-seabed submarine shield tunnel advance detection device, using the combined in-hole-seabed submarine shield tunnel advance detection device according to the first aspect of the present invention, comprises the following process: In the shield machine, the transmitter unit is connected to the shield and the shield cutterhead. The shield cutterhead and the shield act as power supply electrodes, and the connection method is cable connection. The detection ship drives to the designated location, sinks the receiving electrode system to the corresponding depth according to the ocean exploration report, connects the receiver unit with the test computer, and ensures the receiving electrode system according to the position information of the receiving electrode system; Connect the transmitter unit to the computer in the shield control room, connect the receiver unit to the test computer on the exploration ship, select the transmission mode, duty cycle, power supply cycle, power supply and acquisition channel number of the transmitter unit through the computer in the shield control room, and the receiver unit receives data and transmits it to the test computer on the exploration ship; All the detected data will be stored in the test computer, and the test computer will determine the detection results of the detection area based on all the received data.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention improves the efficiency of submarine tunnel excavation and detection efficiency. During detection, the shield machine does not need to stop excavation and the cutterhead does not need to retract, which does not affect the normal excavation of the shield machine and ensures that the construction is completed within the construction period. The layout of the detection device is simple, and only the receiving electrode system needs to be sunk to the seabed.

[0019] 2. The present invention saves space in the shield tunnel. The internal space of the shield tunnel is limited, so it is not necessary to arrange power supply electrodes on the side walls, and more space in the tunnel is reserved for construction personnel and machines.

[0020] 3. The present invention ensures personnel safety and reduces instrument wear. The transmitter unit is mounted inside the shield machine, protecting the transmitter unit from damage by water leakage and dust. In addition, the staff does not need to enter the cutter head compartment to arrange the electrodes, thus ensuring personnel safety.

[0021] Advantages of additional aspects of the present invention will be given in part in the following description, and in part will become obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0023] Figure 1 The principle and internal unit diagram of the transmitter unit provided by the present invention; Figure 2 The principle and internal unit diagram of the receiver unit provided by the present invention Figure 3 A schematic diagram of the structure of a receiving electrode unit provided by the present invention; Figure 4 A schematic diagram of the overall arrangement provided by the present invention; Among them, 1. power switch; 2. signal interpretation module; 3. constant voltage control module; 4. constant current control module; 5. current data receiving module; 6. voltage data receiving module; 7. transmitting switch; 8. GPS positioning module; 9. Wi-Fi module; 101. shield main control room computer; 102. test computer; 11. power switch module; 12. data transmission module; 13. data acquisition module; 14. electrode information transmission module; 15. receiving electrode access module; 16. spring ; 17. DC / DC module; 18. Counterweight; 19. Traction cable; 20. Receiving electrode; 201. First receiving electrode; 202. Second receiving electrode; 203. Third receiving electrode; 21. Measuring cable; 22. Shield cutterhead; 23. Shield; 24. Main control room; 25. Transmitter unit; 26. Cable; 27. Receiving electrode system; 28. Detection ship; 29. ​​Traction cable; 30. Detection area; 31. 220V AC; 32. AC / DC module. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0026] In this implementation, if Figure 1 , Figure 2 and Figure 3 As shown, a combined in-hole-seabed submarine shield tunnel advance detection device is proposed, including: a transmitter unit 25, a receiver unit, a transmitting electrode unit and a receiving electrode unit; the receiving electrode unit is a receiving electrode system 27 composed of a plurality of independent receiving electrodes 20 arranged in an array, and the receiving electrode unit is used for being arranged in a detection area 30 on the seabed.

[0027] Specifically, the transmitter unit 25 includes: a power filter module, a power switch 1, a signal interpretation module 2, a constant voltage control module 3, a constant current control module 4, a current data receiving module 5, a voltage data receiving module 6 and an indicator light.

[0028] The receiver unit includes: a power switch module 11, a data acquisition module 13, a Wi-Fi module 9, a GPS positioning module 8, a data transmission module 12, an electrode information transmission module 14 and a receiving electrode access module 15; The transmitting electrode unit includes: a shield cutter head 22 and a shield shield 23; The receiving electrode system includes: a plurality of receiving electrodes 20 and a counterweight 18 .

[0029] In this implementation, preferably, Figure 1 As shown, the transmitter unit 25 integrates a power filter module, a power switch 1, a signal interpretation module 2, a constant voltage control module 3, a constant current control module 4, a current data receiving module 5, a voltage data receiving module 6 and an indicator light. The transmitter unit 25 is mounted in the shield machine main control room 24, and the shield machine main control room computer 101 in the main control room 24 controls the transmitter unit 25 to transmit, which is convenient for operators to operate the transmitter unit, and a cable 26 is provided to connect the transmitter unit 25 to the shield machine main control room computer 101.

[0030] More specifically, the transmitting switch 7 of the transmitter unit 25 is connected to the constant voltage control module 3 and the constant current control module 4 respectively. The AC power supply is filtered by the EMC filter unit (i.e., the power supply filter module) and then input into the transmitter unit 25. The transmission mode and transmission current are set by the shield main control room computer 101 in the main control room 24, and the set current is output through the signal interpretation module 2.

[0031] After passing through the power filter module and the power switch 1 , the 220V AC power 31 is converted into DC power through the AC / DC module 32 , and then converted into DC power suitable for detection through the DC / DC module 17 .

[0032] The signal interpretation module 2 of this implementation is used to receive the transmission control signal set in the shield main control room computer 101 or transmitted from the ground, and control the relevant units inside the transmitter unit 25 to complete the transmission work of the specified mode.

[0033] The constant voltage control module 3 and the constant current control module 4 of this implementation are used to execute the set transmission task and control the magnitude of the transmission current and the transmission voltage.

[0034] The transmitting switch 7 of this implementation is used to control the transmitter unit 25 to transmit current and stop transmitting current.

[0035] The indicator light of the present implementation is used to indicate the status of the transmitter unit. The off state indicates that the transmitter unit is turned off and not connected to the power supply. The red state (i.e., the first color) indicates that the power supply is connected but not transmitting. The green state (i.e., the second color) indicates that the transmitter unit 25 is transmitting. The first color is different from the second color. Those skilled in the art can select different colors according to specific working conditions, which will not be repeated here.

[0036] The current data receiving module 5 and the voltage data receiving module 6 of the present implementation are used to collect the emitted current and voltage after the transmitter unit 25 emits current, and transmit them to the shield main control room computer 101. The shield main control room computer 101 displays the actual emission signal of the transmitter unit 25.

[0037] In this implementation, the shield control room computer 101 is used to control the power switch 1 of the transmitter unit 25. When the red light of the transmitter unit 25 is on, the transmission mode required for detection is selected in the control software of the shield control room computer 101. The signal interpretation module 2 of the transmitter unit 25 receives the instruction of the shield control room computer 101, and mobilizes the constant voltage control module 3 or the constant current control module 4 to perform current transmission according to the instruction. After the transmission parameters are set, the transmission switch 7 is controlled by the shield control room computer 101 to perform current transmission. When the indicator light of the transmitter unit 25 is green, it indicates that the transmitter unit 25 is transmitting normally.

[0038] In this implementation, preferably, Figure 2As shown, the receiver unit integrates a power switch module 11, a data acquisition module 13, a Wi-Fi module 9, a GPS positioning module 8, a data transmission module 12 and an electrode information transmission module 14. The power switch module 11 of the receiver unit is turned on by the test computer 102, and the received data is collected by the data acquisition module 13, and then transmitted to the test computer 102 via the data transmission module 12 and the Wi-Fi module 9 for interpretation and processing.

[0039] The functions of the various components of the receiver unit are as follows: The receiving electrode access module 15, each receiving electrode 20 ( Figure 2 Only the first receiving electrode 201, the second receiving electrode 202 and the third receiving electrode 203 are shown in the figure. The receiving electrodes 201, 202 and 203 are connected to the test computer 102 via the receiving electrode access module 15 and are used for connecting the receiving electrode system 27 with the receiver unit. The electrode information transmission module 14 is used to transmit the connection mode of the receiving electrode system 27 on the receiver unit and is reflected on the test computer 102. This module transmits the information to the test computer 102 after the receiving electrode system 27 is connected and the power switch 1 is turned on; Wi-Fi module 9, used for wireless connection with the test computer 102; GPS positioning module 8, used to determine the geographical location of the receiver unit; The receiver unit of this implementation is carried on a survey ship 28, and is brought by the survey ship 28 to the top of the sea area of ​​the survey area 30.

[0040] In this implementation, before detection, the receiving electrode unit must be arranged first, the test computer 102 must be connected to the receiving electrode access module 15, and the power switch 1 of the receiver unit must be turned on. The test computer 102 must be debugged and connected to the receiver unit. After the connection is completed, the electrode information transmission module 14 will feed back the access status of the receiving electrode system 27 to the test computer 102 and display it in a specific software. The data measured during the detection will be collected by the data acquisition module 13 of the receiver unit, and then sent to the Wi-Fi module 9 by the data transmission mode, and finally stored and reflected in the test computer 102.

[0041] In this implementation, the cable 26 of the transmitter unit 25 is connected to the computer 101 in the shield machine's main control room, and when the transmitter unit 25 transmits current, the shield 23 and the shield cutter head 22 of the shield machine are powered by the surface power supply; more specifically, the power supply method of this implementation is that the transmitter unit 25 mounted in the main control room 24 of the shield machine is connected to the shield 23 and the shield cutter head 22 of the shield machine through the cable 26, and the shield machine's main control room computer 101 in the main control room 24 controls the transmitter unit 25 to transmit current.

[0042] The receiving electrode system 27 of this implementation is composed of a number of common independent receiving electrodes 20 connected in a special manner, such as Figure 3 The counterweight 18 of the receiving electrode system 27 is installed beside each independent receiving electrode 20 (in this implementation, it is preferably connected to the top of each independent receiving electrode) to ensure that the receiving electrode system 27 sinks to the seabed and is fixed. The GPS positioning module 8 of the receiving electrode system 27 is used to determine the exact position of the receiving electrode system 27. Through the arrangement of the counterweight 18 and the spring 16, it is ensured that each receiving electrode 20 can be inserted into the soil layer of the seabed when the seabed is uneven.

[0043] More specifically, the receiving electrode system 27 includes: a rectangular frame structure, a plurality of independent receiving electrodes 20 arranged in an array, a plurality of annular fixing rings are connected to the rectangular frame structure, the inner walls of the annular fixing rings are connected to the side walls of the receiving electrode 20 through springs 16, and a counterweight block 18 is connected to the top of the independent receiving electrode 20.

[0044] The traction cable 19 and the measuring cable 21 in this implementation are integrated into a connecting cable, which facilitates the detection ship 28 to drag and pull the receiving electrode system 27 on the seabed and facilitates the connection of the receiver unit on the detection ship 28.

[0045] like Figure 4 As shown, the transmitter unit 25 carried in the main control room 24 supplies power to the shield 23 and the shield cutter head 22 of the shield machine, so that the shield 23 and the shield cutter head 22 act as power supply electrodes for surface power supply. The receiving electrode system 27 sinks to the seabed and is towed by the detection ship 28 through the traction cable 29 to the designated detection area 30 for detection operations. The receiver is carried on the detection ship 28 and connected to the computer located on the detection ship 28 to receive detection data.

[0046] The operating method of the above-mentioned in-hole-seabed combined submarine shield tunnel advance detection device comprises: Step 1: Transmitter unit 25 is connected.

[0047] In the shield machine, the transmitter unit 25 is connected to the shield 23 and the shield cutter head 22. The shield cutter head 22 and the shield 23 act as power supply electrodes, and the connection method is cable connection.

[0048] Step 2: Arrange and connect the receiving electrodes 20.

[0049] The detection ship 28 drives to the designated location, sinks the receiving electrode system 27 to a corresponding depth according to the ocean exploration report, connects the receiver unit with the test computer 102, and ensures that the receiving electrode system 27 sinks to the right position according to the position information of the GPS positioning module 8.

[0050] Step 3: Set the transmission parameters and detection.

[0051] After connecting the transmitter unit 25 to the computer 101 in the shield main control room and the receiver unit to the test computer on the detection ship 28, select the transmission mode, duty cycle, power supply cycle, power supply and number of acquisition channels of the transmitter unit 25 through the computer in the main control room 24, and the receiver unit receives the data and transmits it to the test computer 102 on the detection ship 28.

[0052] Step 4: View and save data.

[0053] All the detected data will be stored in the test computer 102 , and the detected data will be processed by the specific data processing software in the test computer 102 to determine the specific situation of the detection area 30 .

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A combined in-hole and seabed submarine shield tunnel advance detection device, characterized in that: include: A transmitter unit, a receiver unit, a transmitting electrode unit and a receiving electrode unit; The transmitter unit mounted in the main control room of the shield machine is connected to the transmitting electrode unit through a cable, and the transmitting electrode unit is a shield cutter head and a shield; The receiver unit arranged on the detection ship is connected to the receiving electrode unit through an entanglement cable. The receiving electrode unit is a receiving electrode system composed of multiple independent receiving electrodes arranged in an array. The receiving electrode unit is used to be arranged in the seabed detection area.

2. The in-hole-seabed combined submarine shield tunnel advance detection device according to claim 1, characterized in that: The transmitter unit includes: a power filter module, a power switch, a signal interpretation module, a constant voltage control module, a constant current control module, a current data receiving module, a voltage data receiving module and a transmitting switch, wherein the AC power supply is connected to the power filter module, the power filter module is connected to the power switch, and the power switch is connected to the signal interpretation module; The signal interpretation module is connected to the constant voltage control module and the constant current control module respectively, the constant voltage control module and the constant current control module are connected to the transmitting switch respectively, and the transmitting switch is connected to the transmitting electrode unit; The current data receiving module, the voltage data receiving module and the signal interpretation module are respectively connected to the computer of the shield main control room.

3. The in-hole-seabed combined submarine shield tunnel advance detection device as claimed in claim 2, characterized in that: The signal interpretation module is used to receive the transmission signal set in the computer of the shield main control room and control the transmission work of the constant voltage control module or the constant current control module; the constant voltage control module and constant current control module of the transmitter unit are used to execute the set transmission tasks and control the size of the transmission current and the transmission voltage.

4. The in-hole-seabed combined submarine shield tunnel advance detection device as claimed in claim 2, characterized in that: The transmitter unit further includes an indicator light, which is used to indicate the state of the transmitter unit. The off state indicates that the transmitter unit is turned off and not connected to the power supply, the first color state indicates that the power supply is connected but not transmitting, and the second color state indicates that the transmitter unit is transmitting; The current data receiving module and the voltage data receiving module are used to collect the emitted current and voltage after the transmitter unit emits current, and transmit them to the shield main control room computer. The shield main control room computer displays the actual emission signal of the transmitter unit.

5. The in-hole-seabed combined submarine shield tunnel advance detection device according to any one of claims 1 to 4, characterized in that: The receiver unit includes: a power switch unit, a data acquisition module, a Wi-Fi module, a GPS positioning module, a data transmission module, an electrode information transmission module and a receiving electrode access module; The data acquisition module is connected to the data transmission module, the data transmission module is connected to the Wi-Fi module, the Wi-Fi module is connected to the debugging computer, the receiving electrode access module is connected to each independent receiving electrode of the receiving electrode system, the receiving electrode access module is connected to the electrode information transmission module, and the electrode information transmission module is connected to the test computer.

6. The in-hole-seabed combined submarine shield tunnel advance detection device as claimed in claim 5, characterized in that: The receiving electrode system includes: a rectangular frame structure, a plurality of independent receiving electrodes arranged in an array, a plurality of annular fixing rings connected to the rectangular frame structure, the inner walls of the annular fixing rings are connected to the side walls of the receiving electrodes through springs, and a counterweight is connected to the top of the independent receiving electrode.

7. The in-hole-seabed combined submarine shield tunnel advance detection device according to claim 6, characterized in that: The GPS positioning module is fixed on the rectangular frame structure.

8. The in-hole-seabed combined submarine shield tunnel advance detection device according to claim 6, characterized in that: Each independent receiving electrode of the receiving electrode system is connected to a measuring cable respectively, and the measuring cable is connected to an electrode information transmission module of a receiver unit.

9. The in-hole-seabed combined submarine shield tunnel advance detection device as claimed in claim 8, characterized in that: The detection ship is connected to the rectangular frame structure through a traction steel cable, and the traction steel cable and the measuring cable are integrated into a connecting cable.

10. An operating method of an in-hole-seabed combined submarine shield tunnel advance detection device, characterized in that: Using the in-hole-seabed combined submarine shield tunnel advance detection device as described in any one of claims 1 to 9, The process includes: In the shield machine, the transmitter unit is connected to the shield and the shield cutterhead. The shield cutterhead and the shield act as power supply electrodes, and the connection method is cable connection. The detection ship drives to the designated location, sinks the receiving electrode system to the corresponding depth according to the ocean exploration report, connects the receiver unit with the test computer, and ensures the receiving electrode system according to the position information of the receiving electrode system; Connect the transmitter unit to the computer in the shield control room, connect the receiver unit to the test computer on the exploration ship, select the transmission mode, duty cycle, power supply cycle, power supply and acquisition channel number of the transmitter unit through the computer in the shield control room, and the receiver unit receives data and transmits it to the test computer on the exploration ship; All the detected data will be stored in the test computer, and the test computer will determine the detection results of the detection area based on all the received data.

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