A new rapid reinforcement method of existing tunnel structure with steel corrugated plate

Abstract

The present application belongs to the field of tunnel construction, and particularly relates to a new type of rapid reinforcing method for existing tunnel structure by using steel corrugated plates, which comprises the following steps: arranging a reinforced concrete foundation on the ground in the tunnel and pre-burying a steel corrugated plate base; installing a steel corrugated plate piece on the steel corrugated plate base; filling the gap between the steel corrugated plate piece and the tunnel with concrete, and monitoring the cross-sectional size of the steel corrugated plate in real time through a detection assembly during the filling process; maintaining the moisture of the concrete; detecting the shape of the steel corrugated plate through the detection assembly on the vertical plate to ensure the symmetry of the left and right ends of the steel corrugated plate; and reinforcing the steel corrugated plate and the tunnel as a whole by filling the gap, and the detection process can be carried out simultaneously with the filling construction without stopping the construction for detection, thereby improving the work efficiency.

Description

Technical Field

[0001] This invention belongs to the field of tunnel construction, specifically a novel and rapid reinforcement method for existing tunnel structures using corrugated steel plates. Background Technology

[0002] Currently, some common problems encountered in the operation of tunnels in China include: cracking of the arch ring, water leakage, debris falling, and damage to the tunnel entrance. These problems can be addressed by using corrugated steel lining for reinforcement and prevention.

[0003] A Chinese patent with publication number CN105951616B discloses a construction method for large-diameter prefabricated corrugated steel pipe culverts. The steps are as follows: 1. Arrange corrugated prefabricated culvert slabs in sequence; 2. Using the midpoint of the culvert's central axis as a reference, extend to both sides until the two ends of the culvert opening; 3. Assemble the culvert units; 4. Determine whether the cross-sectional shape and axial deviation of the assembled culvert units meet the standards and make subsequent corrections. Correct the cross-sectional shape and axial deviation of the pipe sections every 5 meters of assembly; 5. After the culvert assembly is completed, tighten all bolts. The culvert structure constructed by this invention is stable, has high strength, and strong load-bearing capacity.

[0004] The aforementioned construction method for large-diameter prefabricated corrugated steel pipe culverts still has some problems. During the backfilling process after splicing the corrugated steel pipes, it is necessary to check the cross-sectional dimensions of the corrugated pipes. If the deformation of the cross-sectional dimensions exceeds the tolerance, construction needs to be stopped and deformation control implemented. Since the corrugated pipes are constantly vibrating during the backfilling process, it is difficult to measure the accurate cross-sectional dimensions. Therefore, the traditional method often adopts a segmented backfilling approach. After backfilling a certain distance, construction is paused, and then the cross-sectional dimensions of the corrugated pipes are measured and checked. After the check is completed, backfilling is resumed. This operation is cumbersome, time-consuming, and labor-intensive, reducing construction efficiency. The aforementioned construction method for large-diameter prefabricated corrugated steel pipe culverts has not effectively solved this problem.

[0005] Therefore, this invention provides a novel rapid reinforcement method for existing tunnel structures using corrugated steel plates. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this invention to solve its technical problem is: the novel rapid reinforcement method for existing tunnel structures using corrugated steel plates, as described in this invention, includes the following steps:

[0008] S1. Lay a reinforced concrete foundation on the ground inside the tunnel and pre-embed a corrugated steel plate base; by setting a concrete foundation as the foundation for the corrugated steel plate lining, the stability of the bottom end of the corrugated steel plate is enhanced and the damage to the ground inside the tunnel is reduced.

[0009] S2. Install corrugated steel plate components on the corrugated steel plate base. The corrugated steel plate components are used to support the tunnel. The outer diameter of the corrugated steel plate components is smaller than the inner diameter of the tunnel.

[0010] S3. Fill the gap between the corrugated steel sheet and the tunnel with concrete. Before filling, install vertical plates at both ends of the corrugated steel sheet, and install detection components on the vertical plates. During the filling process, the cross-sectional dimensions of the corrugated steel sheet are monitored in real time through the detection components. If the deformation of the cross-section exceeds the standard, the filling construction should be stopped immediately, and the deformation should be treated. Filling can only continue after the deformation is treated. The shape of the corrugated steel sheet is detected by the vertical plates to ensure that the left and right ends of the corrugated steel sheet are symmetrical. The filling of the gap is used to reinforce the corrugated steel sheet and the tunnel as a whole.

[0011] S4. After filling is completed, the concrete should be kept moist and cured.

[0012] S5. Clean up the construction site and repair the inner surface of the tunnel.

[0013] During operation, corrugated steel sheets are highly durable and can withstand long-term heavy pressure. They have low requirements for foundation bearing capacity, are lightweight, and are easy to assemble on site. They also occupy little space during construction, allowing for rapid reinforcement of tunnels from the inside, shortening the construction cycle and reducing damage to the tunnel environment.

[0014] Preferably, in step S2, before installation, the pipe axis of the corrugated steel plate needs to be accurately positioned. When assembling the corrugated steel plate, the pipe axis at the end of the corrugated steel plate is assembled in a unidirectional manner. At the same time, the position, curvature, axis and slope of the pipe section of the corrugated steel plate are checked and corrected.

[0015] Preferably, in step S3, when filling the concrete, a method of pouring from the inside out is adopted, and a pump is used to pour concrete from both ends of the corrugated steel plate. During pouring, a vibrator is used to compact the concrete.

[0016] Preferably, the detection assembly includes a lifting seat 3 slidably mounted on a vertical plate 2. Detection rods 4 are movably inserted into the left and right ends of the lifting seat 3. Support springs are provided on the detection rods 4. Contact heads 5 that abut against the corrugated steel plate 1 are fixedly installed on the detection rods 4. A displacement detection unit is installed between the two detection rods 4. A top support 201 is installed at the top of the vertical plate 2. During operation, when filling concrete, the vertical plate 2 is fixed in place, and the top support 201 abuts against the top of the corrugated steel plate 1 to prevent deformation of the top of the corrugated steel plate 1. The lifting seat 3 is activated by a motor or hydraulic lifting rod and slides up and down along the vertical plate 2. During the sliding process of the lifting seat 3, the contact head 5 extends outward under the push of the support spring and abuts against the inner wall of the corrugated steel plate 1 to detect the deformation of the side wall of the corrugated steel plate 1. When the side wall of the corrugated steel plate 1 deforms, the detection rod 4 will move to the deformed part and displace. By measuring the displacement of the two detection rods 4, it can be determined whether the corrugated steel plate 1 has deformed. Moreover, this detection process can be carried out simultaneously with the filling construction without stopping the construction, which improves work efficiency.

[0017] Preferably, a baffle 6 is fixedly installed at the end of the detection rod 4 away from the corrugated steel plate 1, a fixed seat 7 is fixedly installed at the bottom of the lifting seat 3, and a movable seat 8 that can slide up and down is movably installed above the fixed seat 7. A support spring is installed on the movable seat 8, and a stop rod 9 inserted into the lifting seat 3 is fixedly installed on the left and right sides of the top of the movable seat 8. A cavity is opened inside the lifting seat 3 between the stop rod 9 and the baffle 6. The cavity includes a horizontal section and a vertical section, and the left and right cavities are connected. The cavity is filled with a ball 10. During operation, when the detection rod 4 moves to the deformed part of the corrugated steel plate 1 and is displaced, the detection rod 4 moves left and right in the cavity and drives the movable seat 8 to move up and down through the ball 10. Therefore, it is only necessary to detect the position of the movable seat 8 to determine whether the side wall of the corrugated steel plate 1 has deformed, which saves the trouble of observing and detecting both sides of the corrugated steel plate 1. The operation is simple and more convenient to use.

[0018] Preferably, the fixed base 7 is fixedly connected to the lifting base 3 via a connecting plate 11, and the connecting plate 11 is in the form of... Shape. During operation, the fixed seat 7 and the lifting seat 3 remain relatively stable, while the movable seat 8 can move up and down relative to the lifting seat 3.

[0019] Preferably, a base 12 is fixedly installed at the bottom of the fixed seat 7, a warning light 13 is installed on the base 12, a switch 131 is provided on the warning light 13, an outer insert plate 14 is movably inserted into the inside of the base 12, the outer insert plate 14 is connected to the movable seat 8 through a transmission mechanism, a marker pen 15 is movably inserted into the inside of the outer insert plate 14, and a contact plate 16 corresponding to the switch 131 is fixedly installed on the marker pen 15. During operation, when the detection rod 4 moves to the deformed area on the corrugated steel plate 1 and causes displacement, the ball 10 drives the movable seat 8 to move up and down. The movable seat 8 drives the outer insert plate 14 to move, and the outer insert plate 14 drives the marker pen 15 to move, so that the marker pen 15 marks the vertical plate 2. At the same time, the contact plate 16 on the marker pen 15 contacts the switch 131, causing the warning light 13 to light up as a reminder. After seeing the warning light 13 light up, the staff can stop the construction in time and directly find the deformed area of ​​the corrugated steel plate 1 on the corresponding horizontal line according to the mark on the vertical plate 2, and then make corrections, thus improving work efficiency.

[0020] Preferably, the transmission mechanism includes a support plate 17 fixedly installed at the bottom of the movable seat 8, a compression spring installed on the outer insert plate 14, the support plate 17 penetrating the fixed seat 7, a lever plate at the bottom of the support plate 17, and a groove corresponding to the lever plate on the outer insert plate 14, with a ramp inside the groove. During operation, when the movable seat 8 and the support plate 17 move up and down, the outer insert plate 14 will move via the lever plate and the groove.

[0021] Preferably, the marker pen 15 is provided with a step, the outer insert plate 14 has a groove corresponding to the step inside, and there is a gap between the step and the side wall of the groove. A cone block 18 is fixedly installed on the marker pen 15, and a compression spring is installed between the cone block 18 and the outer insert plate 14. A retaining plate 19 for blocking the cone block 18 is movably inserted into the interior of the base 12. A ramp is provided at the end of the retaining plate 19 away from the outer insert plate 14. A push plate 20 for pushing the retaining plate 19 is fixedly installed on the outer insert plate 14. A wedge is provided on the push plate 20, and a through groove corresponding to the wedge is opened inside the retaining plate 19. In operation, initially, the locking plate 19 blocks the cone block 18, thus fixing the marker pen 15. The outer insertion plate 14 is also fixed under the push of the compression spring 1. When the movable seat 8 and the support plate 17 move up and down, the outer insertion plate 14 is moved by the lever and groove. At the same time, the compression spring 2 is compressed and stores energy. After the outer insertion plate 14 moves a certain distance, the push plate 20 pushes the locking plate 19 open, so that the locking plate 19 is misaligned with the cone block 18. Then, the marker pen 15 moves under the push of the compression spring 2 and contacts the vertical plate 2 and the switch 131, leaving a mark on the vertical plate 2 and activating the warning light 13. With this setting, when the deformation of the corrugated steel plate 1 is within the normal range, the movement of the movable seat 8 and the support plate 17 will not move the marker pen 15. Only when the deformation of the corrugated steel plate 1 exceeds the tolerance will the marking be performed and the warning be triggered. This improves the problem of falsely triggering the warning when the corrugated steel plate 1 undergoes deformation within the normal range, making it more reliable.

[0022] The beneficial effects of this invention are as follows:

[0023] 1. The novel rapid reinforcement method for existing tunnel structures using corrugated steel plates described in this invention uses a detection component on a vertical plate to detect the shape of the corrugated steel plates, ensuring symmetry at both ends; by filling the gaps, the corrugated steel plates and the tunnel are reinforced as a whole, and the detection process can be carried out simultaneously with the filling construction without stopping construction, thus improving work efficiency.

[0024] 2. The novel rapid reinforcement method for existing tunnel structures using corrugated steel plates described in this invention uses a vertical plate and a lifting seat. When the lifting seat slides up and down, a detection rod detects the deformation of the corrugated steel plate. After detecting deformation, a mark is left, and a warning light is triggered to remind workers to stop construction and handle the issue in time. Moreover, this detection process can be carried out during the filling construction without stopping construction, which improves work efficiency. Attached Figure Description

[0025] The invention will now be further described with reference to the accompanying drawings.

[0026] Figure 1 This is a front sectional view of the steel corrugated plate and vertical plate structure of the present invention;

[0027] Figure 2 This is a perspective view of the vertical plate and lifting seat of the present invention;

[0028] Figure 3 This is the present invention. Figure 1 Enlarged view of part A in the middle;

[0029] Figure 4 This is the present invention. Figure 1 Enlarged view of part B in the middle section;

[0030] Figure 5 This is a top sectional view of the sphere and lifting seat of the present invention;

[0031] Figure 6 This is the present invention. Figure 4 Enlarged view of part C in the middle;

[0032] Figure 7 This is a front view of the connection structure between the baffle and the rack plate of the present invention;

[0033] Figure 8 This is a perspective view of the baffle and rack plate of the present invention;

[0034] In the diagram: 1. Corrugated steel plate; 2. Vertical plate; 201. Top support; 3. Lifting seat; 4. Detection rod; 5. Contact head; 6. Baffle; 7. Fixed seat; 8. Movable seat; 9. Stop bar; 10. Ball; 11. Connecting plate; 12. Base; 13. Warning light; 131. Switch; 14. External insertion plate; 15. Marker pen; 16. Contact plate; 17. Support plate; 18. Cone block; 19. Clamping plate; 20. Push plate; 21. Rack plate; 22. Gear. Detailed Implementation

[0035] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0036] The novel rapid reinforcement method for existing tunnel structures using corrugated steel plates as described in this invention includes the following steps:

[0037] S1. Lay a reinforced concrete foundation on the ground inside the tunnel and pre-embed a corrugated steel plate base; by setting a concrete foundation as the foundation for the corrugated steel plate lining, the stability of the bottom end of the corrugated steel plate is enhanced and the damage to the ground inside the tunnel is reduced.

[0038] S2. Install corrugated steel plate component 1 on the corrugated steel plate base. Corrugated steel plate component 1 is used to support the tunnel. The outer diameter of corrugated steel plate component 1 is smaller than the inner diameter of the tunnel.

[0039] S3. Fill the gap between the corrugated steel plate 1 and the tunnel with concrete. Before filling, install vertical plates 2 at both ends of the corrugated steel plate 1. Install detection components on the vertical plates 2. During the filling process, monitor the cross-sectional dimensions of the corrugated steel plate in real time through the detection components. If the deformation of the cross-section exceeds the standard, the filling construction should be stopped immediately and the deformation should be treated. After the deformation is treated, the filling can continue. The shape of the corrugated steel plate is detected by the vertical plates to ensure that the left and right ends of the corrugated steel plate are symmetrical. The filling of the gap is used to reinforce the corrugated steel plate and the tunnel as a whole.

[0040] S4. After filling is completed, the concrete should be kept moist and cured.

[0041] S5. Clean up the construction site and repair the inner surface of the tunnel.

[0042] During operation, corrugated steel sheets are highly durable and can withstand long-term heavy pressure. They have low requirements for foundation bearing capacity, are lightweight, and are easy to assemble on site. They also occupy little space during construction, allowing for rapid reinforcement of tunnels from the inside, shortening the construction cycle and reducing damage to the tunnel environment.

[0043] In step S2, before installation, the pipe axis of the corrugated steel plate 1 needs to be accurately positioned. When assembling the corrugated steel plate 1, the pipe axis at the end of the corrugated steel plate 1 is assembled in a unidirectional manner. At the same time, the position, curvature, axis and slope of the pipe section of the corrugated steel plate 1 are checked and corrected.

[0044] In step S3, when filling the concrete, the method of pouring from the inside out is adopted. The concrete is poured from both ends of the corrugated steel plate 1 using a pump. During the pouring, a vibrator is used to compact the concrete.

[0045] Example 1

[0046] like Figures 1 to 2As shown, the detection assembly includes a lifting seat 3 that is slidably mounted on a vertical plate 2. Detection rods 4 are movably inserted into the left and right ends of the lifting seat 3. Support springs are provided on the detection rods 4. Contact heads 5 that abut against the corrugated steel plate 1 are fixedly installed on the detection rods 4. A displacement detection unit is installed between the two detection rods 4. A top support 201 is installed at the top of the vertical plate 2. During operation, when filling concrete, the vertical plate 2 is fixed in place, and the top support 201 abuts against the top of the corrugated steel plate 1 to prevent deformation of the top of the corrugated steel plate 1. The lifting seat 3 is activated by a motor or hydraulic lifting rod and slides up and down along the vertical plate 2. During the sliding process of the lifting seat 3, the contact head 5 extends outward under the push of the support spring and abuts against the inner wall of the corrugated steel plate 1 to detect the deformation of the side wall of the corrugated steel plate 1. When the side wall of the corrugated steel plate 1 deforms, the detection rod 4 will move to the deformed part and displace. By measuring the displacement of the two detection rods 4, it can be determined whether the corrugated steel plate 1 has deformed. Moreover, this detection process can be carried out simultaneously with the filling construction without stopping the construction, which improves work efficiency.

[0047] like Figures 1 to 5 As shown, a baffle 6 is fixedly installed at the end of the detection rod 4 away from the corrugated steel plate 1. A fixed seat 7 is fixedly installed at the bottom of the lifting seat 3. A movable seat 8 that can slide up and down is movably installed above the fixed seat 7. A support spring is installed on the movable seat 8. A stop bar 9 that is inserted into the lifting seat 3 is fixedly installed on the left and right sides of the top of the movable seat 8. A cavity is opened inside the lifting seat 3 between the stop bar 9 and the baffle 6. The cavity includes a horizontal section and a vertical section. The left and right cavities are connected. The cavity is filled with a ball 10. During operation, when the detection rod 4 moves to the deformed part of the corrugated steel plate 1 and is displaced, the detection rod 4 moves left and right in the cavity and drives the movable seat 8 to move up and down through the ball 10. Therefore, by detecting the position of the movable seat 8, it is possible to determine whether the side wall of the corrugated steel plate 1 has deformed, which saves the trouble of observing and detecting both sides of the corrugated steel plate 1, making it more convenient to use.

[0048] like Figures 1 to 4 As shown, the fixed base 7 is fixedly connected to the lifting base 3 via a connecting plate 11, and the connecting plate 11 is in the form of... Shape. During operation, the fixed seat 7 and the lifting seat 3 remain relatively stable, while the movable seat 8 can move up and down relative to the lifting seat 3.

[0049] like Figures 1 to 6As shown, a base 12 is fixedly installed at the bottom of the fixed seat 7. A warning light 13 is installed on the base 12. A switch 131 is provided on the warning light 13. An outer insert plate 14 is movably inserted into the interior of the base 12. The outer insert plate 14 is connected to the movable seat 8 through a transmission mechanism. A marker pen 15 is movably inserted into the interior of the outer insert plate 14. A contact plate 16 corresponding to the switch 131 is fixedly installed on the marker pen 15. During operation, when the detection rod 4 moves to the deformed area on the corrugated steel plate 1 and causes displacement, the ball 10 drives the movable seat 8 to move up and down. The movable seat 8 drives the outer insert plate 14 to move, and the outer insert plate 14 drives the marker pen 15 to move, so that the marker pen 15 marks the vertical plate 2. At the same time, the contact plate 16 on the marker pen 15 contacts the switch 131, causing the warning light 13 to light up as a reminder. After seeing the warning light 13 light up, the staff can stop the construction in time and directly find the deformed area of ​​the corrugated steel plate 1 on the corresponding horizontal line according to the mark on the vertical plate 2, and then make corrections, thus improving work efficiency.

[0050] like Figures 1 to 6 As shown, the transmission mechanism includes a support plate 17 fixedly installed at the bottom of the movable seat 8, a compression spring installed on the outer insert plate 14, the support plate 17 penetrating the fixed seat 7, a lever plate at the bottom of the support plate 17, and a groove corresponding to the lever plate on the outer insert plate 14, with a ramp inside the groove. During operation, when the movable seat 8 and the support plate 17 move up and down, the outer insert plate 14 will move via the lever plate and the groove.

[0051] like Figures 1 to 6As shown, the marker 15 is provided with a step, and the inner side of the outer insert plate 14 is provided with a groove corresponding to the step, and a gap is left between the step and the side wall of the groove. A cone block 18 is fixedly installed on the marker 15, and a compression spring is installed between the cone block 18 and the outer insert plate 14. A retaining plate 19 for blocking the cone block 18 is movably inserted into the inner side of the base 12. A ramp is provided at the end of the retaining plate 19 away from the outer insert plate 14. A push plate 20 for pushing the retaining plate 19 is fixedly installed on the outer insert plate 14. A wedge is provided on the push plate 20, and a through groove corresponding to the wedge is provided inside the retaining plate 19. In operation, initially, the locking plate 19 blocks the cone block 18, thus fixing the marker pen 15. The outer insertion plate 14 is also fixed under the push of the compression spring 1. When the movable seat 8 and the support plate 17 move up and down, the outer insertion plate 14 is moved by the lever and groove. At the same time, the compression spring 2 is compressed and stores energy. After the outer insertion plate 14 moves a certain distance, the push plate 20 pushes the locking plate 19 open, so that the locking plate 19 is misaligned with the cone block 18. Then, the marker pen 15 moves under the push of the compression spring 2 and contacts the vertical plate 2 and the switch 131, leaving a mark on the vertical plate 2 and activating the warning light 13. With this setting, when the deformation of the corrugated steel plate 1 is within the normal range, the movement of the movable seat 8 and the support plate 17 will not move the marker pen 15. Only when the deformation of the corrugated steel plate 1 exceeds the tolerance will the marking be performed and the warning be triggered. This improves the problem of falsely triggering the warning when the corrugated steel plate 1 undergoes deformation within the normal range, making it more reliable.

[0052] Example 2

[0053] like Figures 2 to 8 As shown in the comparative embodiment one, another embodiment of the present invention is as follows: a rack plate 21 is fixedly installed on the baffle 6, and the two rack plates 21 are connected by a gear 22. The gear 22 is rotatably installed inside the lifting seat 3. During operation, the two detection rods 4 achieve synchronous and reverse movement through the rack plate 21 and the gear 22, so that the balls 10 on the left and right sides move synchronously, thereby stably driving the movable seat 8 to move up and down. This improves the problem that when the two detection rods 4 move asynchronously, the forces exerted by the balls 10 on the movable seat 8 on the left and right sides may be different, resulting in a mismatch between the displacement of the detection rod 4 and the movable seat 8, making it more reliable in use.

[0054] Working principle:

[0055] During concrete filling, the vertical plate 2 is fixed in place, and the top support 201 abuts against the top of the corrugated steel plate 1 to prevent deformation of the top of the corrugated steel plate 1. The lifting seat 3 is started by a motor or hydraulic lifting rod and other mechanisms. The lifting seat 3 slides up and down along the vertical plate 2. During the sliding process of the lifting seat 3, the contact head 5 extends outward under the push of the support spring and abuts against the inner wall of the corrugated steel plate 1 to detect the deformation of the side wall of the corrugated steel plate 1. When the side wall of the corrugated steel plate 1 is deformed, the detection rod 4 will be displaced when it moves to the deformed part. By the displacement of the two detection rods 4, it can be determined whether the corrugated steel plate 1 has been deformed.

[0056] When the detection rod 4 moves to the deformed part of the corrugated steel plate 1 and is displaced, the detection rod 4 moves left and right in the cavity and drives the movable seat 8 to move up and down through the ball 10. Therefore, by detecting the position of the movable seat 8, it is possible to determine whether the side wall of the corrugated steel plate 1 has been deformed, which saves the trouble of observing and detecting both sides of the corrugated steel plate 1 and makes it more convenient to use.

[0057] When the detection rod 4 moves to the deformed area on the corrugated steel plate 1 and is displaced, the ball 10 drives the movable seat 8 to move up and down. The movable seat 8 drives the outer insert plate 14 to move, and the outer insert plate 14 drives the marker pen 15 to move, so that the marker pen 15 marks the vertical plate 2. At the same time, the contact plate 16 on the marker pen 15 contacts the switch 131, causing the warning light 13 to light up as a reminder. After seeing the warning light 13 light up, the staff can stop the construction in time and directly find the deformed area of ​​the corrugated steel plate 1 on the corresponding horizontal line according to the mark on the vertical plate 2, and then make corrections, thus improving work efficiency.

[0058] When the movable seat 8 and the support plate 17 move up and down, they will drive the outer insert plate 14 to move through the lever and groove.

[0059] In the initial state, the locking plate 19 blocks the cone block 18, thus fixing the marker pen 15. The outer insertion plate 14 is also fixed under the push of the compression spring 1. When the movable seat 8 and the support plate 17 move up and down, the outer insertion plate 14 is moved by the lever and the groove. At the same time, the compression spring 2 is compressed and stores energy. After the outer insertion plate 14 moves a certain distance, the push plate 20 pushes the locking plate 19 open, so that the locking plate 19 is misaligned with the cone block 18. Then, the marker pen 15 moves under the push of the compression spring 2 and contacts the vertical plate 2 and the switch 131, leaving a mark on the vertical plate 2 and activating the warning light 13. With this setting, when the deformation of the corrugated steel plate 1 is within the normal range, the movement of the movable seat 8 and the support plate 17 will not move the marker pen 15. Only when the deformation of the corrugated steel plate 1 exceeds the tolerance will the mark be made and the warning be triggered. This improves the problem of falsely triggering the warning when the corrugated steel plate 1 undergoes deformation within the normal range, making it more reliable.

[0060] The two detection rods 4 achieve synchronous and reverse movement through the rack plate 21 and gear 22, which causes the balls 10 on the left and right sides to move synchronously, thereby stably driving the movable seat 8 to move up and down. This improves the problem that when the two detection rods 4 move asynchronously, the forces exerted by the balls 10 on the movable seat 8 on the left and right sides may be different, resulting in a mismatch between the displacement of the detection rod 4 and the movable seat 8, making it more reliable in use.

[0061] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0062] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0063] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for rapid reinforcement of existing tunnel structures using corrugated steel plates, characterized by: Includes the following steps: S1. Lay a reinforced concrete foundation on the ground inside the tunnel and pre-embed a corrugated steel plate base. S2. Install a corrugated steel plate (1) on the corrugated steel plate base. The corrugated steel plate (1) is used to support the tunnel. The outer diameter of the corrugated steel plate (1) is smaller than the inner diameter of the tunnel. S3. Fill the gap between the corrugated steel plate (1) and the tunnel with concrete. Before filling, install vertical plates (2) at both ends of the corrugated steel plate (1). Install detection components on the vertical plates (2). During the filling process, monitor the cross-sectional dimensions of the corrugated steel plate in real time through the detection components. If the deformation of the cross-section exceeds the standard, the filling construction should be stopped immediately and the deformation should be treated. After the deformation treatment is completed, the filling can continue. S4. After filling is completed, the concrete should be kept moist and cured. S5. Clean up the construction site and repair the inner surface of the tunnel; The detection assembly includes a lifting seat (3) that is slidably mounted on a vertical plate (2). Detection rods (4) are movably inserted into the left and right ends of the lifting seat (3). Support springs are provided on the detection rods (4). Contact heads (5) that abut against the corrugated steel plate (1) are fixedly installed on the detection rods (4). A displacement detection unit is installed between the two detection rods (4). A top support (201) is installed at the top of the vertical plate (2). A baffle (6) is fixedly installed at the end of the detection rod (4) away from the corrugated steel plate (1). A fixed seat (7) is fixedly installed at the bottom of the lifting seat (3). A movable seat (8) that can slide up and down is movably installed above the fixed seat (7). A support spring is installed on the movable seat (8). A stop bar (9) that is inserted into the lifting seat (3) is fixedly installed on the left and right sides of the top of the movable seat (8). A cavity is opened inside the lifting seat (3) between the stop bar (9) and the baffle (6). The cavity includes a horizontal section and a vertical section. The left and right cavities are connected. The cavity is filled with a sphere (10).

2. The method for rapid reinforcement of existing tunnel structures using corrugated steel plates according to claim 1, characterized in that: In step S2, before the installation of the corrugated steel plate (1), the pipe axis needs to be accurately positioned. When assembling the corrugated steel plate (1), the end pipe axis of the corrugated steel plate (1) is assembled in a unidirectional manner. At the same time, the position, curvature, axis and slope of the pipe section of the corrugated steel plate (1) are checked and corrected.

3. The method for rapid reinforcement of existing tunnel structures using corrugated steel plates according to claim 1, characterized in that: In step S3, when filling the concrete, the method of pouring from the inside out is adopted. The concrete is poured from both ends of the corrugated steel plate (1) using a pump. During the pouring, a vibrator is used to compact the concrete.

4. The method for rapid reinforcement of existing tunnel structures using corrugated steel plates according to claim 3, characterized in that: The fixed base (7) is fixedly connected to the lifting base (3) through the connecting plate (11), and the connecting plate (11) is in the form of... Shape.

5. The method for rapid reinforcement of existing tunnel structures using corrugated steel plates according to claim 4, characterized in that: The bottom end of the fixed base (7) is fixedly installed with a base (12), a warning light (13) is installed on the base (12), a switch (131) is provided on the warning light (13), an outer plate (14) is movably inserted into the base (12), the outer plate (14) is connected to the movable base (8) through a transmission mechanism, a marker pen (15) is movably inserted into the outer plate (14), and a contact plate (16) corresponding to the switch (131) is fixedly installed on the marker pen (15).

6. The method for rapid reinforcement of existing tunnel structures using corrugated steel plates according to claim 5, characterized in that: The transmission mechanism includes a support plate (17) fixedly installed at the bottom of the movable seat (8), a compression spring is installed on the outer insert plate (14), the support plate (17) passes through the fixed seat (7), a lever is provided at the bottom of the support plate (17), and a groove corresponding to the lever is provided on the outer insert plate (14), and a ramp is provided in the groove.

7. The method for rapid reinforcement of existing tunnel structures using corrugated steel plates according to claim 6, characterized in that: The marker (15) is provided with a step, and the inner side of the outer insert plate (14) is provided with a groove corresponding to the step, and there is a gap between the side wall of the step and the groove. A cone (18) is fixedly installed on the marker (15), and a compression spring is installed between the cone (18) and the outer insert plate (14). A card plate (19) for blocking the cone (18) is movably inserted into the inner side of the base (12). A ramp is provided at the end of the card plate (19) away from the outer insert plate (14). A push plate (20) for pushing the card plate (19) is fixedly installed on the outer insert plate (14). A wedge is provided on the push plate (20), and a through groove corresponding to the wedge is provided inside the card plate (19).

8. The method for rapid reinforcement of existing tunnel structures using corrugated steel plates according to claim 7, characterized in that: A rack plate (21) is fixedly installed on the baffle (6). The two rack plates (21) are connected by a gear (22). The gear (22) is rotatably installed inside the lifting seat (3).

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