A segment deformation prevention structure for a large-angle oblique cross passage starting from the side of a shield tunnel.

Abstract

This invention belongs to the field of tunnel construction technology, specifically a segment anti-deformation structure for a shield-driven, large-angle oblique cross passage. It includes a shield translation channel, with an oblique access road on one side. The shield translation channel and the oblique cross passage are intersected. It should be noted that the oblique angle between the oblique access road and the shield translation channel is 60 degrees. The inner wall of the shield translation channel has an embedded groove. Multiple reinforcing rods are installed in the embedded grooves at different positions and fixed by a fixing mechanism. This angled design of the reinforcing rods improves the anti-deformation of the shield translation channel and the oblique access road, reducing the risk of soil sloughing at the connection between the shield translation channel and the oblique access road over a long period, and potentially leading to collapse, thus ensuring safety during construction.

Description

Technical Field

[0001] This invention belongs to the field of tunnel construction technology, specifically a segment anti-deformation structure for a shield-starting large-angle oblique cross passage. Background Technology

[0002] Currently, in the construction of urban subway tunnels in my country, the shield tunneling method is widely used in the construction of subway, municipal, and power tunnel projects due to its high degree of mechanization, fast construction speed, high safety and minimal impact on the surrounding environment. It has gradually developed into the main method of urban tunnel construction.

[0003] However, with the increasing perfection of urban rail transit systems in China, there are fewer and fewer construction sites available in cities. The shield tunneling starting shaft cannot be built on the main line of the tunnel section. The shield machine can only be moved to the starting position through a section of mined tunnel. The shield machine translation technology in the cross passage is crucial for the smooth starting of the shield machine in the cross passage.

[0004] The structural design of skewed cross passages is crucial to structural safety. Generally speaking, the larger the angle of the skewed tunnel, the larger the skewed area of ​​the cross passage. A larger excavation cross section poses a higher risk during tunnel construction. Due to the complexity of the project, current skewed cross passages cannot ensure that the tunnel boring machine and battery-powered vehicle can smoothly reach the main tunnel line through the cross passage at the starting shaft. Moreover, the skewed structure cannot geometrically meet the normal turning requirements of the tunnel boring machine and battery-powered vehicle transportation system, and deformation problems may occur over a long period of time.

[0005] Therefore, the present invention provides a segment deformation prevention structure for a large-angle oblique cross channel starting from the shield side. 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 as follows: A segment anti-deformation structure for a large-angle oblique cross passage at the side of a shield tunnel, comprising a shield tunneling channel, an oblique access road on one side of the shield tunneling channel, and the shield tunneling channel and the oblique cross passage being intersected. It should be noted that the oblique angle between the oblique access road and the shield tunneling channel is 60 degrees. This arrangement allows for a smaller construction cross-section at the obliquely opened gate, lowers construction risk, and allows for trolley turning. An embedded groove is formed on the inner wall of the shield tunneling channel, and a reinforcing rod is installed in the embedded groove. The reinforcing rod is formed by bending a steel plate. An embedded groove is formed on the inner wall of the oblique access road, and a reinforcing rod is installed in the embedded groove. A fixing mechanism is provided at the connection between the reinforcing rod and the reinforcing rod. The fixing mechanism is used to secure the reinforcing rod. The second reinforcing rod is used for fixation. During operation, to ensure that the tunnel boring machine (TBM) and battery-powered vehicle can smoothly reach the tunnel sine wave by passing through the transverse passage in the starting shaft, the oblique angle between the inclined access road and the TBM translation road is designed to be 60 degrees. This satisfies the turning adjustment of the TBM and the trolley while also ensuring the minimum cross-sectional area of ​​the tunnel entrance. After these designs are completed, several embedding slots 1 and 2 are opened on the inner walls of the TBM translation road and the inclined access road using external equipment. Then, multiple reinforcing rods 1 and 2 are installed in the embedding slots 1 and 2 at different positions and fixed by a fixing mechanism. The angled design of the reinforcing rods 1 and 2 improves the deformation resistance of the TBM translation road and the inclined access road, reduces the problem of soil detachment at the connection between the TBM translation road and the inclined access road over a long period of time, and prevents collapse in severe cases, thus ensuring safety during construction.

[0008] Preferably, multiple embedding slots are provided for both the first and second embedding slots, and they are arranged in a linear array on the sidewalls of the shield tunnel and the inclined roadway, with each embedding slot corresponding to the other. During operation, since multiple embedding slots are provided, the reinforcing rods are also arranged in a linear array. This design improves the strength of the connection between the shield tunnel and the inclined roadway, which is beneficial for normal construction.

[0009] Preferably, each of the first and second reinforcing rods has a bolt groove on its surface. The number of bolt grooves on each of the first and second reinforcing rods is multiple and equidistant. Each bolt groove contains an expansion bolt. During operation, after the first and second reinforcing rods are installed, workers install expansion bolts into each bolt groove, placing them into the bolt groove, the shield tunneling traverse channel, and the inclined passageway. This allows for the installation of the first and second reinforcing rods at different locations, ensuring their stability and safety during use.

[0010] Preferably, the fixing mechanism includes a support seat fixed to one end of the reinforcing rod, the support seat being located near one end of the second reinforcing rod, and a through rod fixed to the end of the second reinforcing rod near the support seat. Each support seat has a through groove, and the through rod passes through the through groove, the shape of the through rod matching the shape of the through groove. During operation, the first reinforcing rod is first installed in the first embedded groove, and then the corresponding second reinforcing rod is installed in the second embedded groove, so that the through rod at the end of the second reinforcing rod passes through the through groove in the support seat, that is, the second reinforcing rod extends to one side of the end of the corresponding first reinforcing rod, thereby fixing the first and second reinforcing rods. With the first and second reinforcing rods fixed, the connection between the inclined passage and the shield tunneling traverse is also pressed and fixed, reducing the problem of soil detachment at the connection between the shield tunneling traverse and the inclined passage over a long period of time, and in severe cases, the problem of collapse. It also facilitates the turning and adjustment of the shield machine and the trolley, ensuring safety during construction.

[0011] Preferably, the upper and lower end faces of the through rod are rotatably connected with a plurality of limiting teeth one, and the plurality of limiting teeth one are arranged at equal intervals on the upper and lower end faces of the through rod. The upper and lower inner walls of the through groove are fixed with a plurality of limiting teeth two, and the plurality of limiting teeth two are arranged at equal intervals on the upper and lower inner walls of the through groove. Each limiting tooth one has an elastic push rod fixed to its side wall. The side of the elastic push rod away from the limiting tooth one is connected to the surface of the through rod. When the through rod moves along the through groove, the limiting teeth one and the limiting teeth two will engage with each other.

[0012] Preferably, the distance between adjacent limiting teeth 2 is equal to the distance between adjacent limiting teeth 1, and a spring is sleeved on the outer surface of each elastic push rod, with one end of the spring connected to the side wall of the elastic push rod and the other end connected to the surface of the through rod.

[0013] Preferably, each of the two limiting teeth has a locking post fixed to its outer wall, and each of the first limiting teeth has a locking groove on its surface. The shape of the locking post and the shape of the locking groove are matched, and the locking post and the locking groove are arranged correspondingly. During operation, when the first limiting tooth and the second limiting tooth move to the appropriate position, the through rod is moved to the left along the through groove for a certain distance until the locking groove on the surface of the first limiting tooth engages with the locking post on the surface of the second limiting tooth. This design further improves the stability of the first limiting tooth and the second limiting tooth when they engage with each other, as well as the strength of the connection between the first reinforcing rod and the second reinforcing rod, thus improving the safety during construction.

[0014] Preferably, the through rod is provided with a rotating shaft that matches the first limiting tooth, and the through rod is provided with a groove that matches the first limiting tooth. Multiple receiving seats are fixedly connected inside the through rod, and each receiving seat is provided in a one-to-one correspondence with the first limiting tooth and is located at the bottom edge of the first limiting tooth. During operation, due to the provision of the receiving seats, the first limiting tooth can rotate in one direction, which facilitates the mutual engagement between the first limiting tooth and the second limiting tooth.

[0015] Preferably, each of the support bases and through rods has a threaded groove on its outer wall, and each threaded groove is provided with a fastening bolt. The fastening bolt can be used to fasten the support base and through rod. During operation, after the support base and through rod are installed, the fastening bolt is screwed into the threaded groove to further fasten the support base and through rod.

[0016] Preferably, both the first limiting tooth and the second limiting tooth are conical in shape, and the shapes of the locking post and the locking groove are compatible. During operation, since the first limiting tooth and the second limiting tooth are conical in shape, they can easily engage with each other.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The present invention discloses a segment anti-deformation structure for a shield tunnel starting at a large angle and intersecting with a transverse passage. By installing multiple reinforcing rods 1 and 2 in embedded grooves 1 and 2 at different positions and fixing them with a fixing mechanism, the angled design of the reinforcing rods 1 and 2 can improve the anti-deformation of the shield tunnel and the transverse passage, reduce the problem of soil detachment at the connection between the shield tunnel and the transverse passage over a long period of time, and prevent collapse in severe cases, thus ensuring the safety of the construction process.

[0019] 2. The anti-deformation structure for the tunnel segments of a shield-side starting large-angle oblique cross passage described in this invention stops the movement of the through rod when it moves to a suitable distance within the through groove, i.e., when the first limiting tooth and the second limiting tooth can engage with each other. Therefore, the engagement of the first limiting tooth and the second limiting tooth improves the stability and strength of the connection between the through rod and the support seat, i.e., improves the stability and strength of the connection between the first reinforcing rod and the second reinforcing rod, resulting in higher safety. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is a schematic diagram of a portion of the reinforcing rod structure of the present invention;

[0023] Figure 3This is a top view schematic diagram of the bolt groove and expansion bolt structure in this invention;

[0024] Figure 4 This is a schematic diagram of the two-part structure of the reinforcing rod in this invention;

[0025] Figure 5 This is a schematic diagram of the through rod and support structure in this invention;

[0026] Figure 6 This is a schematic diagram of the through rod and through slot structure in this invention;

[0027] Figure 7 In this invention Figure 6 Enlarged view of the structure at point A;

[0028] Figure 8 This is a schematic diagram of the fastening bolt part in this invention;

[0029] Figure 9 This is a schematic diagram of the structure when the card post is inserted into the card slot in this invention.

[0030] In the diagram: 1. Shield tunnel translation channel; 2. Inclined access road; 3. Embedded slot one; 4. Reinforcing rod one; 5. Embedded slot two; 6. Reinforcing rod two; 7. Bolt slot; 701. Expansion bolt; 8. Support seat; 9. Through rod; 10. Through slot; 11. Limiting tooth one; 12. Limiting tooth two; 13. Elastic top rod; 14. Locking post; 15. Locking slot; 16. Receiving seat; 17. Threaded groove; 18. Fastening bolt. Detailed Implementation

[0031] 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.

[0032] Example

[0033] like Figures 1 to 9 As shown in the embodiment of the present invention, a segment anti-deformation structure for a shield tunnel starting at a large angle oblique cross passage includes a shield translation channel 1. An oblique passage 2 is provided on one side of the shield translation channel 1. The shield translation channel 1 and the oblique cross passage are intersected. It should be noted that the oblique angle between the oblique passage 2 and the shield translation channel 1 is 60 degrees. This setting allows for a smaller construction cross section for the oblique opening gate, lower construction risk, and also allows for trolley turning. An embedding groove 3 is provided on the inner wall of the shield translation channel 1. A reinforcing rod 4 is provided in the embedding groove 3. The reinforcing rod 4 is formed by bending a steel plate. An embedding groove 5 is provided on the inner wall of the oblique passage 2. A reinforcing rod 6 is provided in the embedding groove 5. A fixing mechanism is provided at the connection between the reinforcing rod 4 and the reinforcing rod 6 to fix the reinforcing rod 4 and the reinforcing rod 6.

[0034] During operation, to ensure that the tunnel boring machine (TBM) and battery-powered vehicle can smoothly reach the tunnel sine wave via the transverse passage in the launching shaft, the oblique angle between the inclined access road 2 and the TBM translation passage 1 is designed to be 60 degrees. This satisfies the turning adjustment of the TBM and the trolley while minimizing the cross-sectional area of ​​the tunnel entrance. After these designs are completed, external equipment is used to create several embedded grooves 1-3 and 2-5 on the inner walls of the TBM translation passage 1 and the inclined access road 2. Then, multiple reinforcing rods 1-4 and 2-6 are installed in the embedded grooves 1-3 and 2-5 at different positions and fixed by a fixing mechanism. The angled design of the reinforcing rods 1-4 and 2-6 improves the deformation resistance of the TBM translation passage 1 and the inclined access road 2, reduces the risk of soil detachment at the connection between the TBM translation passage 1 and the inclined access road 2 over a long period of time, and prevents collapse in severe cases, thus ensuring safety during construction.

[0035] Multiple embedding slots 3 and 5 are provided and are arranged in a linear array on the side walls of the shield tunnel 1 and the inclined passage 2. The embedding slots 3 and 5 are arranged in a one-to-one correspondence. During operation, since multiple embedding slots 3 and 5 are provided, the reinforcing rods 4 and 6 are also arranged in a linear array. This design improves the strength of the connection between the shield tunnel 1 and the inclined passage 2, which is conducive to normal construction.

[0036] Each of the reinforcing rod 1 4 and each of the reinforcing rod 2 6 has a bolt groove 7 on its surface. The number of bolt grooves 7 on the surface of a single reinforcing rod 1 4 and a single reinforcing rod 2 6 is multiple and they are arranged at equal intervals. An expansion bolt 701 is provided in each bolt groove 7.

[0037] During operation, after reinforcing rod 1 (4) and reinforcing rod 2 (6) are installed, workers install expansion bolts 701 into each bolt slot 7, and then install the expansion bolts 701 into the bolt slot 7, the shield tunneling translation channel 1, and the inclined traffic channel 2. This ensures the stability and safety of reinforcing rod 1 (4) and reinforcing rod 2 (6) in different positions.

[0038] The fixing mechanism includes a support base 8 fixed to the end of the reinforcing rod 4. The support base 8 is located near the end of the reinforcing rod 6. A through rod 9 is fixed to the end of the reinforcing rod 6 near the support base 8. Each support base 8 has a through groove 10, and the through rod 9 passes through the through groove 10. The shape of the through rod 9 matches the shape of the through groove 10. During operation, the reinforcing rod 4 is first installed in the embedding groove 3, and then the corresponding reinforcing rod 6 is installed in the embedding groove 5, so that the end of the reinforcing rod 6 passes through the through groove 3. Rod 9 passes through the through groove 10 inside the support seat 8, that is, the second reinforcing rod 6 extends to one side of the end of the corresponding first reinforcing rod 4, thereby fixing the first reinforcing rod 4 and the second reinforcing rod 6. With the first reinforcing rod 4 and the second reinforcing rod 6 fixed, the connection between the inclined traffic channel 2 and the shield translation channel 1 is also pressed and fixed at the same time, which reduces the problem of soil detachment at the connection between the shield translation channel 1 and the inclined traffic channel 2 over a long period of time, and in severe cases, the problem of collapse. It also facilitates the turning and adjustment of the shield machine and the trolley, and ensures the safety during the construction process.

[0039] The upper and lower end faces of the through rod 9 are rotatably connected to multiple limiting teeth 11, which are equidistantly arranged on the upper and lower end faces of the through rod 9. The upper and lower inner walls of the through groove 10 are fixedly connected to multiple limiting teeth 12, which are equidistantly arranged on the upper and lower inner walls of the through groove 10. Each limiting tooth 11 has a side wall fixedly connected to an elastic push rod 13, the side of the elastic push rod 13 away from the limiting tooth 11 being connected to the surface of the through rod 9. The through rod 9 moves along the through groove 10... During movement, the first limiting tooth 11 and the second limiting tooth 12 will engage with each other. During operation, when the through rod 9 moves to the right along the through groove 10, the first limiting tooth 11 on the upper and lower end faces of the through rod 9 will first contact the second limiting tooth 12. Since the second limiting tooth 12 is fixed to the inner wall of the through groove 10, while the first limiting tooth 11 is rotatably connected to the end face of the through rod 9, the first limiting tooth 11 will rotate under pressure. When the through rod 9 moves to a suitable distance within the through groove 10, that is, when the first limiting tooth 11 and the second limiting tooth 12 can engage with each other, ... Figure 9 As shown, the movement of the through rod 9 stops at this time. Therefore, with the mutual engagement of the limiting tooth 11 and the limiting tooth 22, the stability and strength of the connection between the through rod 9 and the support seat 8 can be improved, that is, the stability and strength of the connection between the reinforcing rod 14 and the reinforcing rod 26 are improved, and the safety is higher.

[0040] The distance between adjacent limiting teeth 12 is equal to the distance between adjacent limiting teeth 11. A spring is fitted onto the outer surface of each elastic push rod 13, with one end connected to the side wall of the elastic push rod 13 and the other end connected to the surface of the through rod 9. During operation, when the limiting tooth 11 is compressed by the limiting tooth 12, such as… Figure 6As shown, the limiting tooth 11 will squeeze the elastic push rod 13 on the other side, so that the elastic push rod 13 is in a compressed state. When the limiting tooth 11 and the limiting tooth 2 12 are engaged with each other, under the recovery compression of the elastic push rod 13, it can ensure that the limiting tooth 11 is locked between the adjacent limiting tooth 2 12, thereby improving the service life of the entire reinforcing rod 1 4 and reinforcing rod 2 6.

[0041] Each of the two limiting teeth 12 has a locking post 14 fixedly attached to its outer wall, and each of the first limiting teeth 11 has a locking groove 15 on its surface. The shape of the locking post 14 and the shape of the locking groove 15 are adapted to each other, and the locking post 14 and the locking groove 15 are arranged in a corresponding manner. During operation, when the first limiting tooth 11 and the second limiting tooth 12 move to the appropriate position, the through rod 9 is then moved to the left along the through groove 10 for a certain distance until the locking groove 15 on the surface of the first limiting tooth 11 is engaged with the locking post 14 on the surface of the second limiting tooth 12. This design further improves the stability of the first limiting tooth 11 and the second limiting tooth 12 when they are engaged with each other, as well as the strength of the connection between the first reinforcing rod 4 and the second reinforcing rod 6, thereby improving the safety during construction.

[0042] The through rod 9 is provided with a rotating shaft that matches the limiting tooth 11, and the through rod 9 is provided with a groove that matches the limiting tooth 11. Multiple receiving seats 16 are fixedly connected to the through rod 9. Each receiving seat 16 is provided in a one-to-one correspondence with the limiting tooth 11 and is located at the bottom edge of the limiting tooth 11. During operation, due to the provision of the receiving seats 16, the limiting tooth 11 can rotate in one direction, which facilitates the mutual engagement between the limiting tooth 11 and the limiting tooth 12.

[0043] Each of the support bases 8 and the through rod 9 has a threaded groove 17 on its outer wall, and a fastening bolt 18 is provided in each threaded groove 17. The support base 8 and the through rod 9 can be fastened by the fastening bolt 18. During operation, after the support base 8 and the through rod 9 are installed, the fastening bolt 18 is screwed into the threaded groove 17 to further fasten the support base 8 and the through rod 9.

[0044] The first limiting tooth 11 and the second limiting tooth 12 are both conical in shape, and the shapes of the locking post 14 and the locking groove 15 are compatible. During operation, since the first limiting tooth 11 and the second limiting tooth 12 are conical in shape, they can easily engage with each other.

[0045] During operation, to ensure that the tunnel boring machine (TBM) and battery-powered vehicle can smoothly reach the tunnel sine wave via the transverse passage in the launching shaft, the oblique angle between the inclined access road 2 and the TBM translation passage 1 is designed to be 60 degrees. This satisfies the turning adjustment requirements of the TBM and the trolley while minimizing the cross-sectional area of ​​the tunnel entrance. After these designs are completed, external equipment is used to create several embedded slots 1 (3) and 2 (5) on the inner walls of the TBM translation passage 1 and the inclined access road 2. Then, multiple reinforcing rods 1 (4) and 2 (6) are installed in different positions in embedded slots 1 (3) and 2 (5). The reinforcing rods 4 and 6, with their angled design, are fixed in place by a fixing mechanism. This design improves the deformation resistance of the shield tunnel 1 and the inclined tunnel 2, reducing the risk of soil detachment and even collapse at the connection between the shield tunnel 1 and the inclined tunnel 2 over a long period, thus ensuring safety during construction. Because multiple embedding slots 3 and 5 are provided, the reinforcing rods 4 and 6 are also arranged linearly. This design enhances the strength of the connection between the shield tunnel 1 and the inclined tunnel 2, facilitating normal construction.

[0046] After reinforcing rod 4 and reinforcing rod 6 are installed, workers then install expansion bolts 701 into each bolt slot 7, placing the expansion bolts 701 into the bolt slot 7, the shield tunneling translation channel 1, and the inclined passageway 2. This ensures the stability and safety of reinforcing rods 4 and 6 at different locations during use. First, reinforcing rod 4 is installed in the embedding slot 3, and then the corresponding reinforcing rod 6 is installed in the embedding slot 5, ensuring the end of reinforcing rod 6... The through rod 9 passes through the through groove 10 in the support seat 8, that is, the second reinforcing rod 6 extends into one side of the end of the corresponding first reinforcing rod 4, thereby fixing the first reinforcing rod 4 and the second reinforcing rod 6. With the fixing of the first reinforcing rod 4 and the second reinforcing rod 6, the connection between the inclined traffic channel 2 and the shield translation channel 1 is also pressed and fixed at the same time, which reduces the problem of soil detachment at the connection between the shield translation channel 1 and the inclined traffic channel 2 over a long period of time, and in severe cases, the problem of collapse. It also facilitates the turning and adjustment of the shield machine and the trolley, and ensures the safety during the construction process.

[0047] When the through rod 9 moves to the right along the through groove 10, the limiting tooth 11 on the upper and lower end faces of the through rod 9 will first contact the limiting tooth 12. Since the limiting tooth 12 is fixed to the inner wall of the through groove 10, and the limiting tooth 11 is rotatably connected to the end face of the through rod 9, the limiting tooth 11 will rotate under pressure. When the through rod 9 moves to a suitable distance in the through groove 10, that is, when the limiting tooth 11 and the limiting tooth 12 can engage with each other, ... Figure 9As shown, the movement of the through rod 9 stops at this time. Therefore, with the mutual engagement of the limiting tooth 11 and the limiting tooth 22, the stability and strength of the connection between the through rod 9 and the support seat 8 can be improved, that is, the stability and strength of the connection between the reinforcing rod 14 and the reinforcing rod 26 are improved, and the safety is higher.

[0048] When the limiting tooth 11 is squeezed by the limiting tooth 12, as Figure 6 As shown, the limiting tooth 11 will squeeze the elastic push rod 13 on the other side, so that the elastic push rod 13 is in a compressed state. When the limiting tooth 11 and the limiting tooth 2 12 are engaged with each other, under the recovery compression of the elastic push rod 13, the limiting tooth 11 can be secured between the adjacent limiting tooth 2 12, which improves the service life of the entire reinforcing rod 1 4 and reinforcing rod 2 6. When the limiting tooth 11 and the limiting tooth 2 12 move to the appropriate position, the through rod 9 is then moved to the left along the through groove 10 for a certain distance until the slot 15 on the surface of the limiting tooth 11 is engaged in the locking post 14 on the surface of the limiting tooth 2 12. This design further improves the stability of the limiting tooth 11 and the limiting tooth 2 12 when they are engaged with each other, as well as the strength of the connection between the reinforcing rod 1 4 and the reinforcing rod 2 6, thus improving the safety during construction. Since the receiving seat 16 is provided, the limiting tooth 11 can rotate in one direction, which facilitates the engagement between the limiting tooth 11 and the limiting tooth 2 12.

[0049] 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 segment deformation prevention structure for a shield tunnel starting at a large angle oblique cross passage, characterized in that: The shield tunnel is equipped with a shield translation channel (1), and a sloping traffic channel (2) is provided on one side of the shield translation channel (1). The shield translation channel (1) and the sloping cross channel are intersected. The sloping angle between the sloping traffic channel (2) and the shield translation channel (1) is 60 degrees. An embedding groove 1 (3) is provided on the inner wall of the shield translation channel (1). A reinforcing rod 1 (4) is provided in the embedding groove 1 (3). The reinforcing rod 1 (4) is made of bent steel plate. An embedding groove 2 (5) is provided on the inner wall of the sloping traffic channel (2). A reinforcing rod 2 (6) is provided in the embedding groove 2 (5). A fixing mechanism is provided at the connection between the reinforcing rod 1 (4) and the reinforcing rod 2 (6). The fixing mechanism is used to fix the reinforcing rod 1 (4) and the reinforcing rod 2 (6). The fixing mechanism includes a support seat (8) fixed to the end of the reinforcing rod (4). The support seat (8) is located at one end near the reinforcing rod (6). A through rod (9) is fixed to the end of the reinforcing rod (6) near the support seat (8). Each support seat (8) has a through groove (10). The through rod (9) passes through the through groove (10). The shape of the through rod (9) matches the shape of the through groove (10). The upper and lower end faces of the through rod (9) are rotatably connected with multiple limiting teeth (11). The multiple limiting teeth (11) are arranged at equal intervals on the upper and lower end faces of the through rod (9). The upper and lower inner walls of the through groove (10) are fixed with multiple limiting teeth (2) and the multiple limiting teeth (12) are arranged at equal intervals on the upper and lower inner walls of the through groove (10). Each limiting tooth (11) has an elastic push rod (13) fixed to its side wall. The side of the elastic push rod (13) away from the limiting tooth (11) is connected to the surface of the through rod (9). When the through rod (9) moves along the through groove (10), the limiting teeth (11) and the limiting teeth (2) will engage with each other.

2. The segment deformation prevention structure for a large-angle oblique cross passage starting from the shield tunnel side according to claim 1, characterized in that: Multiple embedding slots are provided for each of the first (3) and the second (5), and they are arranged in a linear array on the side walls of the shield translation channel (1) and the inclined traffic channel (2), respectively. The first (3) and the second (5) are arranged in a one-to-one correspondence.

3. The segment deformation prevention structure for a large-angle oblique cross passage starting from the shield tunnel side according to claim 2, characterized in that: Each of the first reinforcing rod (4) and each of the second reinforcing rods (6) has a bolt groove (7) on its surface. The number of bolt grooves (7) on the surface of a single first reinforcing rod (4) and a single second reinforcing rod (6) is multiple and they are arranged at equal intervals. Each bolt groove (7) is provided with an expansion bolt (701).

4. The segment deformation prevention structure for a large-angle oblique cross passage starting from the shield tunnel side according to claim 1, characterized in that: The distance between adjacent limiting teeth 2 (12) is equal to the distance between adjacent limiting teeth 1 (11). Each elastic push rod (13) has a spring sleeved on its outer surface. One end of the spring is connected to the side wall of the elastic push rod (13), and the other end is connected to the surface of the through rod (9).

5. The segment deformation prevention structure for a large-angle oblique cross passage starting from the shield tunnel side according to claim 1, characterized in that: Each of the two limiting teeth (12) has a locking post (14) fixed to its outer wall, and each of the first limiting teeth (11) has a locking groove (15) on its surface. The shape of the locking post (14) and the shape of the locking groove (15) are adapted to each other, and the locking post (14) and the locking groove (15) are arranged in a corresponding manner.

6. The segment deformation prevention structure for a large-angle oblique cross passage starting from the shield tunnel side according to claim 1, characterized in that: The through rod (9) is provided with a rotating shaft that is compatible with the limiting tooth (11). The through rod (9) is provided with a groove that is compatible with the limiting tooth (11). Multiple receiving seats (16) are fixedly connected inside the through rod (9). Each receiving seat (16) is provided in a one-to-one correspondence with the limiting tooth (11) and is located at the bottom edge of the limiting tooth (11).

7. The segment deformation prevention structure for a large-angle oblique cross passage starting from the shield tunnel side according to claim 6, characterized in that: Each of the support bases (8) and the through rods (9) has a threaded groove (17) on its outer wall, and each of the threaded grooves (17) is provided with a fastening bolt (18). The support base (8) and the through rods (9) can be fastened by the fastening bolts (18).

8. The segment deformation prevention structure for a shield tunnel starting at a large angle oblique cross passage according to claim 7, characterized in that: The first limiting tooth (11) and the second limiting tooth (12) are both conical in shape.

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