In-hole-sea combined submarine shield tunnel advance detection device and method

Abstract

The present invention belongs to the field of resistivity detection in submarine shield tunnels. It provides a combined in-hole and submarine submarine shield tunnel advance detection device and method. A transmitter unit, mounted in the shield machine's main control room, is connected via cables to a transmitting electrode unit, comprising a shield cutterhead and shield. A receiver unit, mounted on a detection vessel, is connected via connecting cables to a receiving electrode unit, comprising a plurality of independent receiving electrodes arranged in an array. The receiving electrode unit is deployed in the submarine detection area. The present invention improves submarine tunneling and detection efficiency, saves space within the shield tunnel, ensures personnel safety, and reduces instrument wear.

Description

Technical Field

[0001] The present invention relates to the field of resistivity detection of submarine shield tunnels, and in particular to a device and method for advanced detection of submarine shield tunnels using a combined in-hole and submarine 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 project for breaking through natural barriers in the sea, connecting straits and bays, and strengthening coastal defenses, undersea tunnels are experiencing unprecedented rapid development. Compared to rail ferries and cross-sea bridges, undersea tunnels do not affect shipping, are unaffected by inclement weather, ocean currents, and other environmental factors, can operate 24 / 7, offer excellent seismic resistance, and are highly secure for combat readiness. Consequently, undersea tunnels are increasingly being adopted internationally as cross-sea transportation facilities.

[0004] Numerous submarine tunnel projects demonstrate that unique geological processes, such as the collision of continental and oceanic plates and the impact of seawater erosion, have created complex geological conditions, including submarine faults, highly weathered zones, and karst formations. Subsea tunnels traversing large, unfavorable geological conditions are highly susceptible to severe water inrush disasters, making the prevention of water inrush disasters a key issue in submarine tunnel construction. The inventors discovered that shield tunneling is commonly used in submarine tunnel construction, and manual resistivity detection requires a certain amount of space at the tunnel face, which slows down the shield tunneling process and reduces the construction rate. Summary of the Invention

[0005] In order to address the deficiencies of the prior art, the present invention provides a combined in-hole and seabed 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 solutions:

[0007] In a first aspect, the present invention provides a combined in-hole and seabed submarine shield tunnel advance detection device.

[0008] 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;

[0009] The transmitter unit mounted in the main control room of the shield machine is connected to the transmitting electrode unit via a cable. The transmitting electrode unit is the shield cutter head and the shield shield;

[0010] 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.

[0011] 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 transmission 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;

[0012] 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;

[0013] The current data receiving module, the voltage data receiving module and the signal interpretation module are respectively connected to the computer in the shield main control room.

[0014] 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 shield main control room computer and control the transmission operation 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 transmission voltage.

[0015] As a further limitation of the first aspect of the present invention, the transmitter unit further includes an indicator light, the indicator light being used to indicate a status of the transmitter unit, wherein an off state indicates that the transmitter unit is turned off and not connected to a power source, a first color state indicates that the transmitter unit is connected to a power source but not transmitting, and a second color state indicates that the transmitter unit is transmitting;

[0016] 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.

[0017] 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;

[0018] 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.

[0019] 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 is connected to the top of the independent receiving electrode.

[0020] As a further limitation of the first aspect of the present invention, the GPS positioning module is fixed on the rectangular frame structure.

[0021] 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 the electrode information transmission module of the receiver unit.

[0022] 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 entrainment cable.

[0023] In a second aspect, the present invention provides an operating method for an in-hole-seabed combined submarine shield tunnel advance detection device.

[0024] An operating method of a combined in-hole-seabed submarine shield tunnel advance detection device, utilizing the combined in-hole-seabed submarine shield tunnel advance detection device described in the first aspect of the present invention, comprises the following steps:

[0025] In the shield machine, the transmitter unit is connected to the shield and the cutter head. The cutter head and the shield act as power supply electrodes, and the connection method is cable connection.

[0026] The survey 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 to the test computer, and ensures the receiving electrode system according to the position information of the receiving electrode system;

[0027] Connect the transmitter unit to the computer in the shield control room, and connect the receiver unit to the test computer on the exploration ship. Select the transmitter unit's transmission mode, duty cycle, power supply cycle, power supply, and number of acquisition channels through the computer in the shield control room. The receiver unit receives data and transmits it to the test computer on the exploration ship.

[0028] All the detection 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.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. The present invention improves the efficiency of submarine tunnel excavation and detection. During detection, the shield machine does not need to stop excavation or retract the cutterhead, 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.

[0031] 2. The present invention saves space in the shield tunnel. The internal space of the shield tunnel is limited, so there is no need to arrange power supply electrodes on the side walls, and more space in the tunnel is reserved for construction personnel and equipment.

[0032] 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, workers do not need to enter the cutterhead compartment to arrange electrodes, thus ensuring personnel safety.

[0033] Advantages of additional aspects of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings, 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.

[0035] Figure 1 The principle and internal unit diagram of the transmitter unit provided by the present invention;

[0036] Figure 2 The principle and internal unit diagram of the receiver unit provided by the present invention

[0037] Figure 3 A schematic structural diagram of a receiving electrode unit provided by the present invention;

[0038] Figure 4 A schematic diagram of the overall arrangement provided by the present invention;

[0039] 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. Transmitter 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 vessel; 29. ​​Traction cable; 30. Detection area; 31. 220V AC; 32. AC / DC module. DETAILED DESCRIPTION

[0040] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0041] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention belongs.

[0042] 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 multiple independent receiving electrodes 20 arranged in an array, and the receiving electrode unit is used to be deployed in the detection area 30 on the seabed.

[0043] 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.

[0044] 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;

[0045] The transmitting electrode unit includes: a shield cutter head 22 and a shield shield 23;

[0046] The receiving electrode system includes a plurality of receiving electrodes 20 and a counterweight 18 .

[0047] 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 main control room computer 101 in the main control room 24 controls the transmitter unit 25 to transmit, which is convenient for the operator to operate the transmitter unit, and a cable 26 is provided to connect the transmitter unit 25 to the shield main control room computer 101.

[0048] 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 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.

[0049] After passing through the power filter module and the power switch 1 , the 220V AC power 31 is converted into DC power by the AC / DC module 32 , and then converted into DC power suitable for detection by the DC / DC module 17 .

[0050] 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.

[0051] 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.

[0052] The transmitting switch 7 of this implementation is used to control the transmitter unit 25 to transmit current and stop transmitting current.

[0053] The indicator light of this 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.

[0054] The current data receiving module 5 and the voltage data receiving module 6 of this 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.

[0055] 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 instructions 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 instructions. 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.

[0056] In this implementation, preferably, Figure 2 As 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 through the data transmission module 12 and the Wi-Fi module 9 for interpretation and processing.

[0057] The functions of the various components of the receiver unit are as follows:

[0058] 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. They are connected to the test computer 102 via the receiving electrode access module 15 and are used to connect the receiving electrode system 27 to the receiver unit.

[0059] 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 displayed 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;

[0060] Wi-Fi module 9, used for wireless connection with the test computer 102;

[0061] GPS positioning module 8, used to determine the geographical location of the receiver unit;

[0062] The receiver unit of this embodiment is carried on a survey ship 28 and is brought by the survey ship 28 to the sea area of ​​the survey area 30 .

[0063] 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.

[0064] In this implementation, the cable 26 of the transmitter unit 25 is connected to the shield machine's main control room computer 101, 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 power supply; more specifically, the power supply method of this implementation is that the transmitter unit 25 mounted in the shield machine's main control room 24 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.

[0065] The receiving electrode system 27 of this embodiment is composed of several common independent receiving electrodes 20 connected in a special way, such as Figure 3 As shown, the counterweight 18 of the receiving electrode system 27 is installed next to each independent receiving electrode 20 (preferably connected to the top of each independent receiving electrode in this embodiment), ensuring that the receiving electrode system 27 is sunk into the seabed and 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. The arrangement of the counterweight 18 and the spring 16 ensures that each receiving electrode 20 can be inserted into the soil layer of the seabed when the seabed is uneven.

[0066] 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 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.

[0067] In this implementation, the traction cable 19 and the measurement cable 21 are integrated into a connecting cable, which facilitates the detection vessel 28 to drag and pull the receiving electrode system 27 on the seabed and facilitates the connection of the receiver unit on the detection vessel 28.

[0068] like Figure 4As shown, the transmitter unit 25 mounted 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 mounted on the detection ship 28 and connected to the computer located on the detection ship 28 to receive detection data.

[0069] The operating method of the above-mentioned in-hole-seabed combined submarine shield tunnel advance detection device includes:

[0070] Step 1: Transmitter unit 25 is connected.

[0071] 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.

[0072] Step 2: Arrange and connect the receiving electrodes 20.

[0073] The exploration ship 28 drives to the designated location, sinks the receiving electrode system 27 to the 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 into place according to the position information of the GPS positioning module 8.

[0074] Step 3: Set the launch parameters and detection.

[0075] After connecting the transmitter unit 25 to the shield main control room computer 101 and the receiver unit to the test computer on the detection ship 28, the transmission mode, duty cycle, power supply cycle, power supply and number of acquisition channels of the transmitter unit 25 are selected through the computer in the main control room 24. The receiver unit receives the data and transmits it to the test computer 102 on the detection ship 28.

[0076] Step 4: View and save data.

[0077] 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 .

[0078] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection 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 via a cable. The transmitting electrode unit is the shield cutter head and the shield shield; The receiver unit arranged on the detection vessel is connected to the receiving electrode unit via an entrainment 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. The detection vessel is connected to the rectangular frame structure via a towing steel cable. The towing steel cable and the measuring cable are integrated into the entrainment cable. The transmitter unit installed in the shield machine's main control room supplies power to the shield shield and cutterhead of the shield machine, allowing the shield shield and cutterhead to act as power supply electrodes for surface power supply. The receiving electrode system is sunk to the seabed and towed by the survey ship via a towing cable to the designated detection area for detection operations. The receiver is installed on the survey ship and connected to the computer on the survey ship to receive detection data. 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 being connected to the side walls of the receiving electrodes via springs, and a counterweight block being connected to the top of the independent receiving electrodes; In the shield machine, the transmitter unit is connected to the shield and the cutter head. The cutter head and the shield act as power supply electrodes, and the connection method is cable connection. The survey 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 to 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, and connect the receiver unit to the test computer on the exploration ship. Select the transmitter unit's transmission mode, duty cycle, power supply cycle, power supply, and number of acquisition channels through the computer in the shield control room. The receiver unit receives data and transmits it to the test computer on the exploration ship. All the detection 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.

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 transmission 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 in the shield main control room.

3. The in-hole-seabed combined submarine shield tunnel advance detection device according to claim 2, characterized in that: The signal interpretation module is used to receive the transmission signal set in the shield main control room computer 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 transmission voltage.

4. The in-hole-sea combined submarine shield tunnel advance detection device according to claim 2, characterized in that: The transmitter unit further includes an indicator light, which 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 first color state indicates that the power supply is connected but not transmitting. 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 test 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-sea combined submarine shield tunnel advance detection device according to claim 1, characterized in that: The GPS positioning module is fixed on the rectangular frame structure.

7. The in-hole-sea combined submarine shield tunnel advance detection device according to claim 1, 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 the electrode information transmission module of the receiver unit.

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