Visualize muddy water shield tunneling simulation test box

Abstract

The utility model relates to analog test device technical field, concretely relates to a kind of visual slurry shield excavation simulation test box, including box, the front side wall of box is opened and the window of the rectangle of the front side wall of box is horizontally penetrated box;The right side wall of box is opened and the semicircular notch of the position close to front side wall;The height of window and semicircular notch is same, the upper edge of window and the highest point of semicircular notch are located same height, the right part of window and semicircular notch constitute the accommodating cavity of cylindrical slurry shield shell, the left part of window is equipped with transparent baffle;Sewage shield shell front end from semicircular notch enters window, sewage shield shell rear end is connected with hydraulic jack;Sewage shield shell front end and the rear side of transparent baffle are in contact, the left side of transparent baffle projects out window left side, sewage shield shell and transparent baffle can move horizontally along window.The utility model has the beneficial effect that researcher can observe the whole process of slurry shield simulation excavation in real time through transparent baffle.

Description

Technical Field

[0001] This utility model relates to the field of simulation test device technology, specifically to a visual slurry shield tunneling simulation test box. Background Technology

[0002] A slurry-balanced shield tunneling machine (TBM) has a closed baffle plate installed behind the cutterhead of a mechanical TBM. The space between the baffle plate and the cutterhead is called the slurry chamber. Slurry, a mixture of soil, clay, and additives, is pumped into the slurry chamber through a pipeline. Once the slurry chamber is full and under pressure, it forms a slurry pressure chamber. During TBM advancement, slurry is injected into the excavated soil while excavating. The slurry forms a mud film at the excavation face, acting as a barrier and support, thus balancing the water and soil pressure at the excavation face. This ensures the excavation face remains stable, effectively preventing safety hazards such as soil collapse and guaranteeing the smooth progress of construction.

[0003] When studying the damage mechanism of slurry shield tunneling machines to complex strata during excavation, and the resulting key issues such as ground subsidence, simulation experiments are usually required. Through simulation experiments, researchers can reproduce the excavation conditions of slurry shield tunneling machines in actual complex strata under a controlled environment.

[0004] Existing slurry balance shield tunneling machine excavation simulation devices are all closed-loop excavation systems. Although they simulate the real construction environment to some extent, they cannot observe the entire shield excavation process in real time. Researchers can only rely on corresponding detection methods to understand the soil condition in front of the excavation face, such as setting up sensors at specific locations. However, sensor detection has limitations; it can only acquire data from discrete points and cannot comprehensively and continuously reflect the overall changes in the stratum condition. When faced with complex and ever-changing stratum conditions, it may lead to the omission of key information, thereby affecting the in-depth understanding and accurate grasp of complex phenomena during the slurry balance shield tunneling process. Utility Model Content

[0005] To address the technical problem that existing slurry shield tunneling machine excavation simulation devices are all closed-loop excavation systems, which, while simulating the real construction environment to some extent, cannot provide real-time observation of the entire shield excavation process, researchers can only rely on corresponding detection methods to understand the underlying conditions in front of the excavation face, this utility model provides a visual slurry shield tunneling excavation simulation test chamber.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A visualization simulation test chamber for slurry shield tunneling includes a chamber body. A rectangular window is located on the front side wall of the chamber, horizontally penetrating the front side wall. A semi-circular notch is located on the right side wall of the chamber, near the front side wall. The height of the window is...

[0008] The semi-circular notch is at the same height, and the upper edge of the window is at the same height as the highest point of the semi-circular notch. The right part of the window and the semi-circular notch form the receiving cavity of the cylindrical slurry shield shell, and a transparent baffle is installed on the left part of the window. The front end of the slurry shield shell extends into the window from the semi-circular notch, and the rear end of the slurry shield shell is connected to the hydraulic jack. The front end of the slurry shield shell abuts against the rear side of the transparent baffle, and the left end of the transparent baffle protrudes out of the left side of the window. The slurry shield shell and the transparent baffle can move horizontally along the window.

[0009] By adopting the above structural design, this utility model features a window on the front side wall of the housing, along which a transparent baffle and a slurry shield shell that can move horizontally are installed. This solves the problem of not being able to observe in real time, allowing researchers to intuitively understand the entire process of shield excavation. The semi-circular notch facilitates the extension of the front end of the slurry shield shell into the window, providing space for the installation and movement of the simulated shield's propulsion.

[0010] As a preferred implementation of a visual slurry shield tunneling simulation test chamber, the slurry shield shell is a hollow cylindrical structure with an open front end. A semi-circular end cap is connected to the front end of the slurry shield shell. The straight edge of the end cap abuts against the right side of the transparent baffle and the end cap is located outside the shell. The interior of the slurry shield shell is equipped with a cutterhead and a sealing wall. The cutterhead is located at the front end of the sealing wall. The center of the cutterhead is connected to the front end of the rotating rod. The rear end of the rotating rod passes horizontally through the sealing wall and exits through the rear end of the slurry shield shell. The rear end of the rotating rod is connected to the engine. A slurry inlet hole is opened on the sealing wall. The slurry inlet hole is connected to the front end of the slurry inlet pipe. The rear end of the slurry inlet pipe exits through the rear end of the slurry shield shell and is connected to the slurry tank. The slurry tank is connected to an air compressor. A valve and a pressure gauge are provided on the slurry inlet pipe.

[0011] Using the above structural design, the cutterhead is driven by an engine to rotate and excavate. A semi-circular end cap at the front of the slurry shield housing isolates the housing from the outside, ensuring that the cutterhead inside the slurry shield housing can contact the soil while preventing soil leakage from the front of the housing. The slurry inlet pipe connects to the slurry tank and air compressor one, injecting slurry into the slurry chamber through the inlet hole. This simulates the excavation and slurry supply system of an actual slurry balance shield machine, enabling the reproduction of excavation conditions in complex geological formations within the test chamber, including the formation of the slurry pressure chamber and the establishment of the mud film. A valve and a pressure gauge are installed on the slurry inlet pipe. The valve controls the slurry flow rate, and the pressure gauge monitors the slurry pressure in real time, allowing researchers to accurately control and adjust the pressure within the slurry chamber to better simulate the slurry balance state under different geological conditions. This provides accurate pressure control for studying the damage mechanism of slurry balance shield machines in complex geological formations.

[0012] As a preferred implementation of a visual slurry shield tunneling simulation test chamber, the outer circumferential surface of the slurry shield shell is connected to two oppositely positioned sealed slide rails, each of which is provided with a slide groove arranged along the axial direction; the upper and lower edges of the window are provided with slide tracks that fit into the slide grooves.

[0013] The above structural design ensures the airtightness of the slurry shield shell as it moves within the window, preventing leakage of soil and slurry from the shell and maintaining the stability of the simulated environment. On the other hand, the combination of the chute and the slide allows the slurry shield shell to move smoothly horizontally along the window, reducing resistance and deviation during movement and improving the accuracy of the simulation test.

[0014] As a preferred implementation of a visual slurry shield tunneling simulation test chamber, the rear surface of the slurry shield shell is connected to a limiting rod, which is set vertically.

[0015] With the above structural design, the limiting rod can limit the movement of the slurry shield shell, preventing the entire slurry shield shell from entering the window and avoiding soil leakage from the gap between the rear end face of the slurry shield shell and the box body.

[0016] As a preferred implementation method for a visual slurry shield tunneling simulation test chamber, the bottom of the limiting rod is connected to the front end of the advance scale, the advance scale is set horizontally, and the rear end of the advance scale is connected to the hydraulic jack.

[0017] Using the above structural design, the advancing distance of the slurry shield shell can be accurately measured and observed through the advancement scale.

[0018] As a preferred implementation of a visual slurry shield tunneling simulation test chamber, the top of the chamber is equipped with a cover, and an air compressor II is installed outside the chamber. The air compressor II is connected to a pressure stabilizing pump through an air pipe I, and the pressure stabilizing pump is connected to the air pipe II. The air pipe II extends into the chamber from the cover. A valve II is installed on the air pipe I, and a pressure gauge II is installed on the air pipe II.

[0019] Using the above structural design, the air pressure inside the chamber can be regulated by air compressor two and pressure stabilizing pump to simulate different formation pressure environments. Valve two is used to control the gas flow rate, and pressure gauge two monitors the pressure inside the chamber in real time, enabling researchers to precisely adjust and control the pressure conditions inside the test chamber, better simulate the pressure changes in complex formations, and provide a guarantee for studying the impact of slurry balance shield tunneling machines on formations under different pressure environments.

[0020] As a preferred implementation of a visual slurry shield tunneling simulation test chamber, the chamber contains a soil layer, and sensors are installed in the soil layer. The sensors are electrically connected to flow meters and stress strain gauges, which are located outside the chamber.

[0021] By adopting the above structural scheme, while realizing visual observation, data such as flow rate, stress and strain in the soil layer are obtained by using sensors. This makes up for the inability of visual observation to directly obtain these physical quantities. Combining visual observation with traditional detection methods can provide a more comprehensive understanding of the changes in the state of the strata during the simulated excavation process and reduce the omission of key information.

[0022] As a preferred implementation method for a visual slurry shield tunneling simulation test chamber, the chamber body is made of transparent material.

[0023] The above-mentioned structural design uses a transparent material for the box body, which allows researchers to observe the excavation process of the slurry shield shell through the transparent baffle on the front wall, as well as observe the overall changes in the soil layers inside the box from other directions. This achieves comprehensive visualization and is more conducive to researchers' comprehensive and in-depth understanding of the changes in the strata during the simulation test.

[0024] As a preferred implementation of a visual slurry shield tunneling simulation test chamber, the chamber body is provided with a semi-circular guide plate at the connection between the semi-circular notch and the window, and the semi-circular guide plate is in contact with the outer surface of the slurry shield shell.

[0025] By adopting the above structural scheme, a semi-circular guide plate is set at the connection between the semi-circular notch and the window, which fits against the outer surface of the slurry shield shell. This guide plate can guide the slurry shield shell, making it smoother when entering and exiting the window. At the same time, it reduces friction and damage to the outer surface of the slurry shield shell, extends the service life of the test equipment, and ensures the normal conduct of the simulation test.

[0026] As a preferred implementation of a visual slurry shield tunneling simulation test chamber, the chamber cover is made of transparent material.

[0027] With the above-mentioned structural design, the box cover is made of transparent material, allowing researchers to observe the situation inside the box from the top. This enables researchers to observe the simulation test process from multiple angles, including changes in the soil surface and the interaction between the mud and the soil, providing more favorable observation conditions for a comprehensive study of the excavation process of the slurry-balance shield tunneling machine.

[0028] The beneficial effects of this utility model include:

[0029] This invention features a horizontally penetrating window on the front side wall of the casing and a semi-circular notch on the right side wall of the casing. Combined with the installation and movement of the slurry shield shell and the transparent baffle, researchers can observe the entire process of simulated excavation of the slurry shield shell in real time and intuitively through the transparent baffle, and understand the state of the soil layer in front of the excavation face. Attached Figure Description

[0030] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a cross-sectional structural diagram of a visual slurry shield tunneling simulation test chamber according to a specific embodiment of the present utility model.

[0032] Figure 2 This is a three-dimensional structural diagram of the box body in a specific embodiment of this utility model;

[0033] Figure 3 This is a schematic diagram of the three-dimensional structure of the slurry shield tunnel shell in a specific embodiment of this utility model. Figure 1 ;

[0034] Figure 4 This is a schematic diagram of the three-dimensional structure of the slurry shield shell in a specific embodiment of this utility model. Figure 2 ;

[0035] Figure 5 This is a partial structural diagram of the slurry shield shell in a specific embodiment of the present invention.

[0036] List of components and reference numerals:

[0037] 1. Shield housing; 2. Window; 3. Semicircular notch; 4. Rectangular notch; 5. Slurry shield shell; 6. Hydraulic jack; 7. Transparent baffle; 8. Cutterhead; 9. Sealing wall; 10. Rotating rod; 11. Engine; 12. Slurry inlet pipe; 13. Slurry tank; 14. Air compressor one; 15. Valve one; 16. Pressure gauge one; 17. Sealed slide rail; 18. Slide groove; 19. Slide track; 20. Limiting rod; 21. Advancement scale; 22. Shield housing cover; 23. Air compressor two; 24. Pressure stabilizing pump; 25. Air pipe one; 26. Air pipe two; 27. Valve two; 28. Pressure gauge two; 29. ​​Sensor; 30. Flow meter; 31. Stress strain gauge; 32. Semicircular guide plate; 33. End cover. Detailed Implementation

[0038] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0039] Reference Figure 1-5 This embodiment proposes a visualization slurry shield tunneling simulation test chamber, including a chamber body 1, and a cover 22 on the top of the chamber body 1. Both the chamber body 1 and the cover 22 are made of transparent material, such as transparent resin.

[0040] A rectangular window 2 is opened on the front side wall of the box body 1, and the window 2 horizontally penetrates the front side wall of the box body 1; a semi-circular notch 3 is opened on the right side wall of the box body 1 near the front side wall (i.e., the left edge of the box body 1), the straight edge of the semi-circular notch 3 coincides with the left edge of the box body 1, the height of the window 2 is the same as the height of the semi-circular notch 3, and the upper edge of the window 2 is at the same height as the highest point of the semi-circular notch 3, that is, the diameter of the semi-circular notch 3 is equal to the height of the window 2; the right part of the window 2 and the semi-circular notch 3 form a cavity that can accommodate the cylindrical slurry shield shell 5, and a transparent baffle 7 is installed on the left part of the window 2.

[0041] The slurry shield tunnel shell 5 is a hollow cylindrical structure with an open front end. A semi-circular end cap 33 is connected to the front end of the slurry shield tunnel shell 5. The front end of the slurry shield tunnel shell 5 extends into the window 2 through the semi-circular notch 3, and the rear end extends out of the window 2. The end cap 33 is located outside the housing 1. A semi-circular guide plate 32 is provided on the housing 1 at the junction of the semi-circular notch 3 and the window 2, and the semi-circular guide plate 32 is fitted to the outer surface of the slurry shield tunnel shell 5. The rear surface of the slurry shield tunnel shell 5 is connected to a limiting rod 20, which is vertically positioned. The bottom of the limiting rod 20 is connected to the front end of the advance scale 21, which is horizontally positioned. The rear end of the advance scale 21 is connected to a hydraulic jack 6.

[0042] The straight edge of the end cap 33 connected to the front end of the slurry shield shell 5 abuts against the right side of the transparent baffle 7. The left side of the transparent baffle 7 protrudes out of the left side of the window 2. Specifically, a rectangular notch 4 is opened on the left side wall of the box body 1 near the front side wall (i.e., the right edge of the box body 1). The height of the rectangular notch 4 is equal to the height of the window 2. The upper and lower edges of the window 2, the semi-circular notch 3, and the rectangular notch 4 are flush. The left side of the transparent baffle 7 passes through the rectangular notch 4 and can protrude out of the left side of the window 2. The rectangular notch 4 provides space for the left side of the transparent baffle 7 to protrude out of the left side of the window 2.

[0043] In this embodiment, the outer periphery of the slurry shield shell 5 and the upper and lower edges of the transparent baffle 7 abut against the upper and lower edges of the window 2, allowing the slurry shield shell 5 and the transparent baffle 7 to move horizontally along the window 2. The length of the transparent baffle 7 is equal to the length of the window 2.

[0044] The outer periphery of the slurry shield shell 5 is connected to two opposing sealing slide rails 17, each of which is provided with a slide groove 18 arranged in the axial direction; the upper and lower edges of the window 2 are provided with slide tracks 19 that fit into the slide grooves 18. The transparent baffle 7 can move along the inner side or the outer side of the slide track 19.

[0045] The front end of the slurry shield tunneling machine shell 5 is equipped with a cutterhead 8 and a sealing wall 9. The cutterhead 8 is located at the front end of the sealing wall 9, and its center is threadedly connected to the front end of the rotating rod 10. The rear end of the rotating rod 10 passes horizontally through the sealing wall 9 and exits the rear end of the slurry shield tunneling machine shell 5. The rear end of the rotating rod 10 is connected to the engine 11, and the rotating rod 10 and the sealing wall 9 are connected by a rotary seal. The sealing wall 9 has a slurry inlet hole, which communicates with the front end of the slurry inlet pipe 12. The rear end of the slurry inlet pipe 12 exits the rear end of the slurry shield tunneling machine shell 5 and is connected to the slurry tank 13. The slurry tank 13 is connected to the air compressor 14. The slurry inlet pipe 12 is equipped with a valve 15 and a pressure gauge 16.

[0046] An air compressor 23 is installed on the outside of the housing 1. The air compressor 23 is connected to the pressure stabilizing pump 24 through an air pipe 25. The pressure stabilizing pump 24 is connected to the air pipe 26. The air pipe 26 extends into the housing 1 from the cover 22. A valve 27 is installed on the air pipe 25, and a pressure gauge 28 is installed on the air pipe 26.

[0047] The housing 1 contains a soil layer, and a sensor 29 is installed in the soil layer. The sensor 29 is electrically connected to a flow meter 30 and a strain gauge 31. The strain gauge 31 and the flow meter 30 are located outside the housing 1.

[0048] Work process:

[0049] The front end of the slurry shield shell 5 extends into the window 2 through the semi-circular notch 3 on the right side wall of the housing 1, ensuring that the outer circumference of the slurry shield shell 5 and the upper and lower edges of the transparent baffle 7 abut against the upper and lower edges of the window 2, guaranteeing a good seal. The rear end of the slurry shield shell 5 is connected to the hydraulic jack 6, and a limiting rod 20 is connected to the rear end surface of the slurry shield shell 5. The bottom of the limiting rod 20 is connected to the front end of the advance scale 21, and the rear end of the advance scale 21 is connected to the hydraulic jack 6, used to measure and control the advance distance of the shield shell. The rear end of the rotating rod 10 is connected to the engine 11. The cutterhead 8 is located at the front end of the sealing wall 9 inside the front end of the slurry shield shell 5, and the rotating rod 10 passes through the sealing wall 9 so that the engine 11 drives the cutterhead 8 to rotate.

[0050] The mud tank 13 is connected to the air compressor 14 to supply mud to the mud-water shield shell 5 through the mud inlet pipe 12. A valve 15 and a pressure gauge 16 are installed on the mud inlet pipe 12 to control and monitor the mud pressure and flow rate. The air compressor 23 is connected to the pressure stabilizing pump 24 through an air pipe 25. The pressure stabilizing pump 24 is connected to an air pipe 26. The air pipe 26 extends from the tank cover 22 into the housing 1. A valve 27 and a pressure gauge 28 are installed on the air pipe 25 to control and monitor the air pressure inside the housing 1.

[0051] The soil material to be simulated is placed in layers inside the chamber 1. Sensors 29 are installed in the soil layers according to experimental requirements, and the sensors 29 are electrically connected to the flow meter 30 and stress strain gauge 31 outside the chamber 1. After filling the soil layers, enough water is poured into the chamber 1 to saturate the soil material, ensuring that the water level is higher than the saturated material.

[0052] Air compressor 14 is turned on, and the slurry in mud tank 13 is forced into the slurry shield shell 5 through slurry inlet pipe 12 and slurry inlet hole on sealing wall 9, forming a slurry pressure chamber. After the pressure in the slurry pressure chamber stabilizes, engine 11 is started, driving cutterhead 8 to rotate, simulating the excavation action of the tunnel boring machine. At the same time, hydraulic jacks 6 push the slurry shield shell 5 and transparent baffle 7 to move horizontally along window 2, simulating the tunnel boring machine's propulsion process. During this process, slurry forms a mud film on the excavation face, balancing the water and soil pressure on the excavation face. Researchers can observe the entire tunnel excavation process in real time through transparent baffle 7 and transparent box 1.

[0053] During the simulated excavation process, the pressure of the mud in the slurry inlet pipe 12 is monitored by pressure gauge 16, the air pressure in the box 1 is monitored by pressure gauge 28, and the relevant data changes in the soil layer are monitored by flow meter 30 and stress strain gauge 31. Based on these data, the working status of air compressor 14 and air compressor 23, as well as the opening and closing degree of valve 15 and valve 27 are adjusted in a timely manner to ensure the accuracy and stability of the simulation test.

[0054] After the simulation test, shut down engine 11, air compressor 14, and air compressor 23, close the relevant valves, and stop the mud supply and tunnel boring machine (TBM) advance. Disassemble the mud-water shield shell 5 and other related components, clean the soil and mud inside the housing 1, and perform maintenance and upkeep on the test equipment in preparation for the next test.

[0055] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A visual slurry shield tunneling simulation test chamber, comprising a chamber body (1), characterized in that, A rectangular window (2) is opened on the front side wall of the box body (1), and the window (2) horizontally penetrates the front side wall of the box body (1); a semi-circular notch (3) is opened on the right side wall of the box body (1) near the front side wall; the height of the window (2) is the same as the height of the semi-circular notch (3), and the upper edge of the window (2) is at the same height as the highest point of the semi-circular notch (3); the right part of the window (2) and the semi-circular notch (3) form the cavity of the cylindrical slurry shield shell (5), and a transparent baffle (7) is installed on the left part of the window (2); the front end of the slurry shield shell (5) extends into the window (2) from the semi-circular notch (3), and the rear end of the slurry shield shell (5) is connected to the hydraulic jack (6); The front end of the slurry shield shell (5) abuts against the right side of the transparent baffle (7), and the left side of the transparent baffle (7) protrudes out to the left of the window (2). The slurry shield shell (5) and the transparent baffle (7) can move horizontally along the window (2).

2. The visual slurry shield tunneling simulation test chamber according to claim 1, characterized in that, The slurry shield shell (5) is a cylindrical structure with a hollow interior and an open front end. A semi-circular end cap (33) is connected to the front end of the slurry shield shell (5). The straight edge of the end cap (33) abuts against the right side of the transparent baffle (7), and the end cap (33) is located outside the box body (1). The interior of the slurry shield shell (5) is equipped with a cutterhead (8) and a sealing wall (9). The cutterhead (8) is located at the front end of the sealing wall (9). The center of the cutterhead (8) is connected to the front end of the rotating rod (10). The rear end of the rotating rod (10) passes horizontally through the sealing wall (9) and exits the rear end of the slurry shield shell (5). The rear end of the rotating rod (10) is connected to the engine (11). The sealing wall (9) has a slurry inlet hole, which is connected to the front end of the slurry inlet pipe (12). The rear end of the slurry inlet pipe (12) exits the rear end of the slurry shield shell (5) and is connected to the mud tank (13). The mud tank (13) is connected to the air compressor (14). The slurry inlet pipe (12) is equipped with a valve (15) and a pressure gauge (16).

3. The visual slurry shield tunneling simulation test chamber according to claim 1, characterized in that, The outer periphery of the slurry shield shell (5) is connected to two opposite sealing slide rails (17), each of which is provided with a slide groove (18) arranged in the axial direction; the upper and lower edges of the window (2) are provided with slides (19) that fit into the slide groove (18).

4. The visual slurry shield tunneling simulation test chamber according to claim 1, characterized in that, The rear surface of the slurry shield shell (5) is connected to the limiting rod (20), which is set vertically.

5. The visual slurry shield tunneling simulation test chamber according to claim 4, characterized in that, The bottom of the limit rod (20) is connected to the front end of the push ruler (21), the push ruler (21) is set horizontally, and the rear end of the push ruler (21) is connected to the hydraulic jack (6).

6. The visual slurry shield tunneling simulation test chamber according to claim 1, characterized in that, The top of the box (1) is provided with a box cover (22), and the outside of the box (1) is provided with an air compressor (23). The air compressor (23) is connected to the pressure stabilizing pump (24) through an air pipe (25). The pressure stabilizing pump (24) is connected to the air pipe (26). The air pipe (26) extends from the box cover (22) into the box (1). The air pipe (25) is provided with a valve (27), and the air pipe (26) is provided with a pressure gauge (28).

7. The visual slurry shield tunneling simulation test chamber according to claim 1, characterized in that, The housing (1) contains a soil layer, and a sensor (29) is installed in the soil layer. The sensor (29) is electrically connected to a flow meter (30) and a strain gauge (31). The strain gauge (31) and the flow meter (30) are located outside the housing (1).

8. The visual slurry shield tunneling simulation test chamber according to claim 1, characterized in that, The box (1) is made of transparent material.

9. The visual slurry shield tunneling simulation test chamber according to claim 1, characterized in that, The box body (1) has a semi-circular guide plate (32) at the connection between the semi-circular notch (3) and the window (2), and the semi-circular guide plate (32) is attached to the outer surface of the slurry shield shell (5).

10. A visual slurry shield tunneling simulation test chamber according to claim 6, characterized in that, The lid (22) is made of transparent material.

Images