Strong permeable stratum shield spewing real-time monitoring and evaluating system

Abstract

The invention relates to a strong permeable stratum shield gushing real-time monitoring and evaluating system, which is characterized by comprising a state monitoring device, a real-time monitoring device and a real-time evaluation device, the water pressure monitoring device is used for monitoring the segmented water pressure of the spiral conveyor in real time; and the water flow monitoring device is used for monitoring the segmented water flow of the spiral conveyor in real time. According to the invention, visualization of soil pressure balance shield muck transportation is creatively realized, real-time monitoring of water pressure and water flow in the screw conveyor can be realized, the risk of gushing of the screw conveyor can be accurately judged, and a real-time monitoring means and an evaluation method for shield gushing of a strong permeable stratum are provided.

Description

Technical Field

[0001] The invention relates to the technical field of shield construction disaster prevention and control, in particular to a real-time monitoring and evaluation system for shield gushing in highly permeable strata. Background Art

[0002] As my country's demand for urban rail transit increases, more and more cities are carrying out urban rail transit line construction plans. At present, 53 cities in my country have opened 290 urban rail transit lines, with a total mileage of nearly 10,000 kilometers. China is currently the country with the fastest urban rail transit construction speed in the world. The earth pressure balance shield machine has become the main construction equipment for my country's urban rail transit lines due to its high degree of mechanization, high intelligence and wide applicability to strata. The earth pressure balance shield maintains the stability of the soil bin pressure through cutter cutting and screw conveyor slag discharge, using the slag in the soil bin as a stabilizer. The medium and the cutterhead panel jointly support and balance the water and soil pressure at the tunnel face to maintain the balance of the face. Therefore, the earth pressure balance shield has high requirements on the characteristics of the slag in the soil bin. However, with the increasing demand for urban rail transit, the urban underground environment is becoming more and more complex, the construction risks and difficulties are increasing, and the traversed strata are complex and diverse. Complex water-rich strata, high-viscosity strata and other unfavorable strata are often encountered. Among them, water-rich, non-viscous and sandy strata account for more than half of the unfavorable strata traversed by the shield. The water-rich strata have high water content, high water pressure and large water flow, which increases the engineering disasters such as screw conveyor gushing during shield construction.

[0003] The screw conveyor is an important part of the earth pressure balance shield machine's slag conveying system. It not only plays the role of shield machine slag discharge, but also plays the role of controlling the soil pressure in the excavation chamber, thereby ensuring the stability of the excavation face. During the excavation of the shield machine in the water-rich sand layer, the screw conveyor is prone to bursting disasters, causing engineering accidents such as face instability and stratum collapse, causing huge safety hazards and seriously affecting construction efficiency. In order to avoid the screw conveyor from bursting during the construction of the shield machine, a number of technologies have been applied to solve construction engineering problems. At present, the most effective technology for dealing with engineering problems in the shield construction process is the slag improvement technology. The slag is improved by injecting bentonite, bursting prevention agent and other slag improvers into the screw conveyor. Although the slag improvement technology has achieved great results in solving engineering problems such as screw conveyor bursting, the current screw conveyor bursting problem has not yet been monitored in real time, and the internal water pressure and cross-sectional water flow of the screw conveyor cannot be monitored. At present, the prevention of screw conveyor bursting problems on the construction site mainly relies on construction experience and lacks scientific basis.

[0004] Therefore, in order to realize real-time monitoring of the water pressure and water flow inside the screw conveyor and accurately determine whether the screw conveyor is at risk of gushing, a real-time monitoring method and evaluation system for shield gushing in highly permeable strata is needed. Summary of the invention

[0005] The purpose of the present invention is to provide a real-time monitoring and evaluation system for shield tunneling in highly permeable strata to solve the problems existing in the above-mentioned prior art.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] A real-time monitoring and evaluation system for shield tunneling in highly permeable strata, comprising: a state monitoring device, a water pressure monitoring device, a water flow monitoring device, and an intelligent data processing system;

[0008] The state monitoring device, water pressure monitoring device and water flow monitoring device are all installed on the earth pressure balance shield machine;

[0009] The state monitoring device is used to monitor the filling state of the soil in the shield soil bin in real time;

[0010] The water pressure monitoring device is used to monitor the water pressure of the screw conveyor segments in real time;

[0011] The water flow monitoring device is used to monitor the water flow of the screw conveyor segments in real time;

[0012] The intelligent data processing subsystem is used to extract and classify the data of the status monitoring device, the water pressure monitoring device and the water flow monitoring device, and to image the classified data through the data imaging method to realize status monitoring; and to issue early warning for the status monitoring results.

[0013] Optionally, the earth pressure balance shield machine comprises: a shield cutter head, a shield soil bin, a soil bin partition, a shield shell, and a screw conveyor;

[0014] The screw conveyor comprises: a slag discharge port, a reduction motor, a frequency converter, a screw shaft and a screw blade.

[0015] Optionally, the state monitoring device includes: a laser scanner and an image data transmitter;

[0016] The laser scanner is connected to the image data transmitter and embedded in the upper wall of the shield soil bin;

[0017] The laser scanner is used to collect soil status data of the shield soil bin;

[0018] The image data transmission device is used to transmit soil status data to the monitoring system in the shield control room.

[0019] Optionally, the water pressure monitoring device includes: a water pressure gauge on the upper wall of the screw conveyor, a water pressure gauge on the lower wall of the screw conveyor, and a pressure gauge;

[0020] The water pressure gauge on the lower wall of the screw conveyor is installed on the lower wall of the screw conveyor, at a first preset position away from the spiral blade of the screw conveyor;

[0021] The water pressure gauge on the upper wall of the screw conveyor is installed on the upper wall of the screw conveyor, at a second preset position away from the spiral blade of the screw conveyor;

[0022] The connecting lines of the screw shaft, the water pressure gauge on the upper wall of the screw conveyor and the water pressure gauge on the lower wall of the screw conveyor are perpendicular to each other, and a total of four pressure gauges are symmetrically embedded on the inner wall of the slag outlet.

[0023] Optionally, the water pressure monitoring device further comprises: an upper wall water pressure data transmitter, a pressure data transmitter and a lower wall water pressure data transmitter;

[0024] The upper wall water pressure gauge of the screw conveyor is connected to the shield control chamber monitoring system through the upper wall water pressure data transmitter, the lower wall water pressure gauge of the screw conveyor is connected to the shield control chamber monitoring system through the lower wall water pressure data transmitter, and the pressure gauge is connected to the shield control chamber monitoring system through the pressure data transmitter.

[0025] Optionally, the water flow monitoring device includes: a flow meter and a flow data transmitter;

[0026] The flow meter is installed on the lower wall of the screw conveyor, at a third preset position away from the screw blade;

[0027] The flow meter is connected to the shield control chamber monitoring system through a flow data transmitter.

[0028] Optionally, the water pressure gauge on the lower wall of the screw conveyor installed on the lower wall of the screw conveyor includes:

[0029] The screw conveyor is divided into sections, with a single spiral blade as one section, and a screw conveyor lower wall water pressure gauge is installed on the lower wall of each section;

[0030] The water pressure gauge on the upper wall of the screw conveyor is installed on the upper wall of the screw conveyor and includes:

[0031] The screw conveyor is divided into sections, with a single spiral blade as one section, and a screw conveyor upper wall water pressure gauge is installed on the upper wall of each section.

[0032] Optionally, the flow meter is installed on the lower wall of the screw conveyor and includes:

[0033] The screw conveyor is divided into sections, with a single spiral blade as one section, and a flow meter is installed on the lower wall of each section.

[0034] The beneficial effects of the present invention are:

[0035] It breaks the traditional blindness of improving the internal transportation of debris in the screw conveyor based on construction experience to solve the gushing problem of the screw conveyor.

[0036] The visualization of the earth pressure balance shield machine's soil movement status can be realized, and the soil filling status inside the shield soil bin can be realized, providing a basis for the selection of earth pressure balance shield excavation parameters.

[0037] It realizes real-time monitoring of the water pressure and water flow inside the screw conveyor, presents the water pressure and water flow status of the entire screw conveyor, and accurately determines whether there is a risk of gushing in each section inside the screw conveyor.

[0038] The ultimate water pressure of the construction site gushing at the slag outlet of the screw conveyor is measured. Based on the water pressure and water flow status of each section, bentonite slurry is accurately injected for improvement, so as to achieve targeted improvement of the slag status of the screw conveyor and prevent the gushing problem of the screw conveyor in a more scientific and accurate manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0040] Figure 1 A schematic diagram of the layout of a real-time monitoring device for earth pressure balance shield gushing according to an embodiment of the present invention;

[0041] Figure 2 This is a schematic diagram of the arrangement of a water pressure gauge and a flow meter inside a screw conveyor according to an embodiment of the present invention;

[0042] Figure 3 A schematic diagram of real-time monitoring of gushing according to an embodiment of the present invention;

[0043] Among them, 1. Shield cutter head; 2. Shield soil bin; 3. Partition; 4. Shield shell; 5. Screw conveyor; 6. Slag outlet; 7. Reducer motor; 8. Frequency converter; 9. Screw shaft; 10. Screw blade; 11. Water pressure gauge on the upper wall of screw conveyor; 12. Flow meter; 13. Water pressure gauge on the lower wall of screw conveyor; 14. Pressure gauge; 15. Laser scanner; 16. Upper wall water pressure data transmitter; 17. Water flow data transmitter; 18. Pressure data transmitter; 19. Lower wall water pressure data transmitter; 20. Image data transmitter. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0046] This embodiment proposes a real-time monitoring and evaluation system for shield tunneling in highly permeable strata, including: a state monitoring device, a water pressure monitoring device, a water flow monitoring device, and an intelligent data processing subsystem;

[0047] The status monitoring device, water pressure monitoring device, and water flow monitoring device are all located on the earth pressure balance shield machine;

[0048] A status monitoring device is used to monitor the soil filling status in the shield soil bin in real time;

[0049] Water pressure monitoring device, used for real-time monitoring of the water pressure of the screw conveyor sections;

[0050] Water flow monitoring device, used for real-time monitoring of the water flow of the screw conveyor segments;

[0051] The intelligent data processing subsystem is used to extract and classify the data of the status monitoring device, the water pressure monitoring device and the water flow monitoring device, and to image the classified data through the data imaging method to realize status monitoring; and to provide early warning for status monitoring.

[0052] The intelligent data processing subsystem is used to extract and classify the data of the status monitoring device, the water pressure monitoring device and the water flow monitoring device through computer programming, and to image the CT scan data through the data imaging system to realize status monitoring; the water pressure data and water flow data of the first and second preset positions and the water pressure data and water flow data of the drain outlet are processed by data clearing means and MATLAB to form a curve, and the water pressure critical gushing threshold value is set to 20kPa and the water flow critical gushing threshold value is set to 4cm3 / s on the system. If the curve is above the critical gushing threshold value, the data curve is automatically marked and an alarm is issued.

[0053] Furthermore, the earth pressure balance shield machine is composed of a cutting system, an improvement system, a slag discharge system and a control system; including: a shield cutter head 1, a shield soil bin 2, a soil bin partition 3, a shield shell 4, and a screw conveyor 5;

[0054] The screw conveyor 5 includes: a slag discharge port 6, a reduction motor 7, a frequency converter 8, a screw shaft 9, and a screw blade 10.

[0055] Furthermore, the state monitoring device includes: a laser scanner 15 and an image data transmitter 20;

[0056] The laser scanner 15 is connected to the image data transmission device 20 and embedded in the upper wall of the shield soil bin;

[0057] A laser scanner 15 is used to collect soil status data of the shield soil bin 2;

[0058] The image data transmitter 20 is used to transmit soil status data to the monitoring system in the shield control room.

[0059] Specifically, in this embodiment, the shield soil bin cabin status monitoring device includes a laser scanner 15, an image data transmitter 20, and an intelligent imaging system. The laser scanner 15 is connected to the image data transmitter 20 and is embedded in the upper wall of the shield soil bin. The laser scanner 15 collects soil status data of the shield soil bin 2 and establishes a connection with the shield control room internal monitoring system through the image data transmitter 20.

[0060] A laser scanner 15 is embedded in the upper wall of the shield soil bin. The laser scanner 15 scans the soil below a specific height in the shield soil bin, and transmits the data to the shield control bin through the image data transmitter 20. The computer processes the data and forms an image, thereby realizing real-time monitoring of the soil filling status in the shield soil bin.

[0061] Further, the water pressure monitoring device includes: a water pressure gauge 11 on the upper wall of the screw conveyor, a water pressure gauge 13 on the lower wall of the screw conveyor, and a pressure gauge 14;

[0062] The screw conveyor lower wall water pressure gauge 13 is installed on the lower wall of the screw conveyor 5, at a first preset position away from the screw blade 10 of the screw conveyor;

[0063] The screw conveyor upper wall water pressure gauge 11 is installed on the upper wall of the screw conveyor 5, at a second preset position away from the screw blade 10 of the screw conveyor;

[0064] The connecting lines of the screw shaft 9 and the water pressure gauge 11 on the upper wall of the screw conveyor and the water pressure gauge 13 on the lower wall of the screw conveyor are perpendicular to each other, and a total of four pressure gauges 14 are symmetrically embedded on the inner wall of the slag outlet 6 .

[0065] The water pressure monitoring device further comprises: an upper wall water pressure data transmitter 16 , a pressure data transmitter 18 and a lower wall water pressure data transmitter 19 .

[0066] Specifically, in the present embodiment, the water pressure monitoring device of the screw conveyor includes a water pressure gauge 11 on the upper wall of the screw conveyor, a water pressure gauge 13 on the lower wall of the screw conveyor, a pressure gauge 14, an upper wall water pressure data transmitter 16, a pressure data transmitter 18, and a lower wall water pressure data transmitter 19, wherein the water pressure gauge 13 on the lower wall of the screw conveyor is embedded in the lower wall of the screw conveyor 5 at the position closest to the spiral blade 10 of the screw conveyor, the water pressure gauge 11 on the upper wall of the screw conveyor is embedded in the upper wall of the screw conveyor 5 at the position farthest from the spiral blade 10 of the screw conveyor, the spiral shaft 9 and the lines connecting the water pressure gauge 11 on the upper wall of the screw conveyor and the water pressure gauge 13 on the lower wall of the screw conveyor are perpendicular to each other, and a total of four pressure gauges 14 are symmetrically embedded in the inner wall of the slag outlet 6.

[0067] The upper wall water pressure gauge 11 of the screw conveyor is connected to the shield control chamber monitoring system through the upper wall water pressure data transmitter 16, the lower wall water pressure gauge 13 of the screw conveyor is connected to the shield control chamber monitoring system through the lower wall water pressure data transmitter 19, and the pressure gauge 14 is connected to the shield control chamber monitoring system through the pressure data transmitter 18.

[0068] Further, the water flow monitoring device includes: a flow meter 12 and a flow data transmitter 19;

[0069] The flow meter 12 is installed on the lower wall of the screw conveyor 5, at a third preset position away from the spiral blade 10;

[0070] The flow meter 12 is connected to the shield control chamber monitoring system through the flow data transmitter 17.

[0071] Specifically, in this embodiment, the water flow monitoring device of the screw conveyor includes a flow meter 12 and a flow data transmitter 19. The flow meter 12 is located on the lower wall of the screw conveyor 5 at the farthest position from the spiral blade 10. The flow meter 12 is connected to the shield control chamber monitoring system through the flow data transmitter 17.

[0072] Further, the screw conveyor lower wall water pressure gauge 13 is installed on the lower wall of the screw conveyor 5 and includes:

[0073] The screw conveyor 5 is divided into sections, with a single screw blade 10 as one section, and a screw conveyor lower wall water pressure gauge 13 is installed on the lower wall of each section.

[0074] The upper wall water pressure gauge 11 of the screw conveyor is installed on the upper wall of the screw conveyor 5 and includes:

[0075] The screw conveyor 5 is divided into sections, with a single screw blade 10 forming one section, and a screw conveyor upper wall water pressure gauge 11 is installed on the upper wall of each section.

[0076] Further, the flow meter 12 is installed on the lower wall of the screw conveyor 5 and includes:

[0077] The screw conveyor 5 is divided into sections, with a single screw blade 10 forming a section, and a flow meter 12 is installed on the lower wall of each section.

[0078] Specifically, in this embodiment, the real-time monitoring means of the gushing is monitored through water pressure and water flow data, and the screw conveyor 5 is divided into sections, with a single spiral blade 10 as one section, and a screw conveyor upper wall water pressure gauge 11 is installed on the upper wall of each section, a screw conveyor lower wall water pressure gauge 13 is installed on the lower wall, and a flow meter 12 is installed on the lower wall.

[0079] The screw conveyor 5 is divided into sections according to the spiral blades 10. When the screw conveyor 5 is stopped, the sections of the screw conveyor from the soil bin partition 3 to the slag outlet 6 are arranged according to Arabic numerals. A single spiral blade 10 is a single section of the screw conveyor. An upper wall water pressure gauge 11 and a lower wall water pressure gauge 13 are arranged on the upper and lower walls of the single-section screw conveyor 5, respectively. The connecting line of the upper wall water pressure gauge 11 and the lower wall water pressure gauge 13 is perpendicular to the screw shaft 9 of the screw conveyor. A flow meter 12 is arranged at the center of the lower wall of the single-section screw conveyor 5.

[0080] The data transmission instrument, from the end of the screw conveyor close to the soil bin 2 to the end of the drain outlet 6, sorts the data of the water pressure gauge 11 on the upper wall of the screw conveyor in the system in order of A, B, and C, and the data of the water pressure gauge 13 on the lower wall of the screw conveyor in the system in order of a, b, and c, and the data of the flow meter 1) in the system in order of Ⅰ, Ⅱ, and Ⅲ.

[0081] In this embodiment, a laser scanner 15 is used to image the part below a specific height in the soil bin 2, so as to realize real-time monitoring of the slag feeding status at the opening of the shield cutter head 1, the slag storage status in the shield soil bin 2, and the slag transportation status of the screw conveyor 5. An upper wall water pressure gauge 11, a lower wall water pressure gauge 13, and a lower wall water flow meter 12 are used to measure the two most critical parameters, water pressure and water flow, which determine whether the screw conveyor has a risk of gushing. The screw conveyor 5 is sorted by sections to realize real-time monitoring of the water pressure and water flow of each section of the screw conveyor 5, and accurately determine the area where the inner wall of the screw conveyor 5 may have a risk of gushing. A pressure gauge 14 is used to measure the water pressure at the slag outlet, so as to realize the on-site measurement of the ultimate water pressure of gushing.

[0082] The screw conveyor drives the screw shaft through a reduction motor, adjusts the screw conveyor speed through a frequency converter, and relies on spiral blades to transport the slag. During the slag transportation process, the on-site stratum conditions and shield excavation parameters will affect the screw conveyor's gushing. Among them, the water pressure and water flow of the screw conveyor transporting the slag play a decisive role in the risk of gushing. Once the water pressure and water flow of the transported slag exceed a certain limit, the screw conveyor will be at risk of gushing. In order to accurately judge the location of the screw conveyor with a risk of gushing, the water pressure gauge on the upper wall, the water pressure gauge on the lower wall, and the flow meter on the lower wall of the screw conveyor are numbered according to the screw conveyor section. During the slag transportation process, the water pressure gauge and flow meter monitor the internal data of the screw conveyor in real time, and feed it back to the shield control room through the data transmitter. The monitoring system sets a limit alarm. Once the water pressure and water flow exceed the limit, the shield control room will alarm and remind, and cooperate with the slag improvement system to achieve accurate improvement.

[0083] The four pressure gauges at the slag outlet of the screw conveyor are responsible for measuring the water pressure of the slag at the slag outlet, realizing the determination of the ultimate water pressure value of the slag outlet of the screw conveyor at the construction site, and transmitting it to the shield control room through the data transmission instrument.

[0084] The shield monitoring system and the slag improvement system cooperate with each other. The shield soil bin is made transparent through the laser scanner, providing a basis for determining the shield excavation parameters. The screw conveyor water flow meter and water pressure gauge monitor the internal water pressure and water flow of the screw conveyor in real time, accurately determine the location of the screw conveyor with a risk of eruption, and cooperate with the slag improvement system to improve the internal slag of the screw conveyor, thereby preventing and controlling the eruption disasters of the screw conveyor.

[0085] The real-time monitoring of the gushing in this embodiment is as follows: Figure 3 shown.

[0086] The device of this embodiment includes a shield soil bin cabin status monitoring device, a screw conveyor water pressure monitoring device, a screw conveyor water flow monitoring device, a data transmission system, and an intelligent data processing system applied to an earth pressure balance shield machine. The shield soil bin cabin slag status monitoring device uses a laser scanner to scan the soil below a specific height inside the soil bin, and transmits the scanned data to the shield control room through an image data transmitter for data processing and imaging by a computer, thereby realizing real-time monitoring of the shield soil bin soil status; the screw conveyor water pressure monitoring device is installed on the upper and lower walls of each section of the screw conveyor vertically to the rotating shaft. Pressure gauge, and transmit the water pressure of each section to the shield control room through the water pressure data transmitter for computer processing and recording. The computer sets the critical threshold of water pressure. When the critical threshold is exceeded, the shield control room alarms and reminds. Four pressure gauges are symmetrically installed at the slag outlet of the screw conveyor to achieve the determination of the critical value of the construction site gushing; the screw conveyor water flow monitoring device, a flow meter is installed on the lower wall of each section of the screw conveyor, and the water flow of each section is transmitted to the shield control room through the water flow data transmitter for computer processing and recording. The computer sets the critical threshold of water flow. When the critical threshold is exceeded, the shield control room alarms and reminds. The innovative process of this embodiment realizes the visualization of the slag movement of the earth pressure balance shield, can realize the real-time monitoring of the water pressure and water flow inside the screw conveyor, accurately judge the risk of gushing of the screw conveyor, and provide a real-time monitoring means and evaluation method for the gushing of the shield in a highly permeable stratum.

[0087] The embodiments described above are only descriptions of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A real-time monitoring and evaluation system for shield tunneling in highly permeable strata, characterized in that: The system is applied to an earth pressure balance shield machine, and includes: a state monitoring device, a water pressure monitoring device, a water flow monitoring device, and an intelligent data processing system; The state monitoring device, water pressure monitoring device and water flow monitoring device are all installed on the earth pressure balance shield machine; The state monitoring device is used to monitor the filling state of the soil in the shield soil bin in real time; The water pressure monitoring device is used to monitor the water pressure of the screw conveyor segments in real time; The water flow monitoring device is used to monitor the water flow of the screw conveyor segments in real time; The intelligent data processing subsystem is used to extract and classify the data of the status monitoring device, the water pressure monitoring device and the water flow monitoring device, and to image the classified data through the data imaging method to realize status monitoring; and to issue early warning for the status monitoring results.

2. The real-time monitoring and evaluation system for shield tunneling in highly permeable strata according to claim 1 is characterized in that: The earth pressure balance shield machine comprises: a shield cutter head (1), a shield soil bin (2), a soil bin partition (3), a shield shell (4), and a screw conveyor (5); The screw conveyor (5) comprises: a slag discharge port (6), a reduction motor (7), a frequency converter (8), a screw shaft (9), and a screw blade (10).

3. The real-time monitoring and evaluation system for shield tunneling in highly permeable strata according to claim 2 is characterized in that: The state monitoring device comprises: a laser scanner (15) and an image data transmitter (20); The laser scanner (15) is connected to the image data transmitter (20) and is embedded in the upper wall of the shield soil bin; The laser scanner (15) is used to collect soil state data of the shield soil bin (2); The image data transmitter (20) is used to transmit soil state data to the shield control chamber monitoring system.

4. The real-time monitoring and evaluation system for shield tunneling in highly permeable strata according to claim 2 is characterized in that: The water pressure monitoring device comprises: a water pressure gauge (11) on the upper wall of the screw conveyor, a water pressure gauge (13) on the lower wall of the screw conveyor, and a pressure gauge (14); The screw conveyor lower wall water pressure gauge (13) is installed on the lower wall of the screw conveyor (5) at a first preset position away from the screw blade (10) of the screw conveyor; The screw conveyor upper wall water pressure gauge (11) is installed on the upper wall of the screw conveyor (5) at a second preset position away from the screw blade (10) of the screw conveyor; The connecting lines of the spiral rotating shaft (9) and the water pressure gauge (11) on the upper wall of the spiral conveyor and the water pressure gauge (13) on the lower wall of the spiral conveyor are perpendicular to each other, and a total of four pressure gauges (14) are symmetrically embedded on the inner wall of the slag outlet (6).

5. The real-time monitoring and evaluation system for shield tunneling in highly permeable strata according to claim 4 is characterized in that: The water pressure monitoring device further comprises: an upper wall water pressure data transmitter (16), a pressure data transmitter (18) and a lower wall water pressure data transmitter (19); The upper wall water pressure gauge (11) of the screw conveyor is connected to the shield control chamber monitoring system via the upper wall water pressure data transmitter (16), the lower wall water pressure gauge (13) of the screw conveyor is connected to the shield control chamber monitoring system via the lower wall water pressure data transmitter (19), and the pressure gauge (14) is connected to the shield control chamber monitoring system via the pressure data transmitter (18).

6. The real-time monitoring and evaluation system for shield tunneling in highly permeable strata according to claim 4 is characterized in that: The water flow monitoring device comprises: a flow meter (12) and a flow data transmitter (19); The flow meter (12) is installed on the lower wall of the screw conveyor (5) at a third preset position away from the screw blade (10); The flow meter (12) is connected to the shield control chamber monitoring system via a flow data transmitter (17).

7. The real-time monitoring and evaluation system for shield tunneling in highly permeable strata according to claim 6 is characterized in that: The screw conveyor lower wall water pressure gauge (13) is installed on the screw conveyor (5) lower wall and comprises: The screw conveyor (5) is divided into sections, with a single screw blade (10) forming a section, and a screw conveyor lower wall water pressure gauge (13) is installed on the lower wall of each section; The screw conveyor upper wall water pressure gauge (11) is installed on the upper wall of the screw conveyor (5) and comprises: The screw conveyor (5) is divided into sections, with a single screw blade (10) forming a section, and a screw conveyor upper wall water pressure gauge (11) is installed on the upper wall of each section.

8. The real-time monitoring and evaluation system for shield tunneling in highly permeable strata according to claim 7 is characterized in that: The flow meter (12) is installed on the lower wall of the screw conveyor (5) and comprises: The screw conveyor (5) is divided into sections, with a single screw blade (10) forming a section, and a flow meter (12) is installed on the lower wall of each section.

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