Steel sleeve for whole translation shield launching of shield tunneling machine

Abstract

The application relates to a steel sleeve for whole translation shield launching of a shield machine, and relates to the technical field of shield machine construction.The steel sleeve comprises a cylinder body and a supporting device.The supporting device comprises a base arranged on a launching shaft, a slide arranged on the base, the cylinder body being placed on the slide and the base and sliding on the slide and the base, and a pushing mechanism arranged on the cylinder body and used for driving the cylinder body to move and positioning the cylinder body and the slide together.The application is hoisted by a hole hoisting device to realize installation of the whole structure, then the pushing mechanism is started to drive the shield machine to move to the launching position, and then the shield machine can be used for launching construction, so that the time spent in the shield machine launching process is saved;when the cylinder body needs to be removed, the pushing mechanism is started to push the cylinder body to move back to the hoisting-in position, then the cylinder body can be hoisted and removed, so that the convenience of subsequent disassembly of the structure used for supporting the shield machine is improved, and the construction efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of tunnel boring machine (TBM) construction, and in particular to a steel sleeve for the overall translational launching of a TBM. Background Technology

[0002] In subway construction, the diameter and depth of shield tunnels are constantly increasing, and the geological and environmental conditions are becoming increasingly complex. Engineering accidents such as collapses and water seepage during the shield tunneling launch process are on the rise, bringing enormous difficulties and uncertainties to subway construction. In traditional construction methods, the foundation of the launching shaft needs to be reinforced before the shield machine is launched.

[0003] Currently, the main methods of reinforcing the starting end of a tunnel boring machine (TBM) include grouting reinforcement, jet grouting reinforcement, soil mixing pile reinforcement, and freezing reinforcement. However, in actual engineering projects, the geological structure is often quite complex, and the various reinforcement techniques and solidification testing methods have certain limitations. The effectiveness of the end reinforcement cannot be fully guaranteed, and the risks of TBM starting cannot be completely controlled. Therefore, the steel sleeve starting method has been widely used.

[0004] When a tunnel boring machine (TBM) is launched, a support structure must first be installed to support the TBM, and then the TBM is installed onto the support structure. However, in actual construction, the geological environment of the launching shaft is often unfavorable, and the construction site also plays a role. This is especially true when using the semi-cover method to excavate the launching shaft. Because a traffic guide cover is set above the excavation site, the space for hoisting holes is narrow, and the position of the holes is usually misaligned with the location where the TBM is installed. Therefore, after hoisting the TBM and the support structure into the site, they need to be manually moved to the launching site and then reinstalled. This makes the TBM launching process take a long time. Moreover, when the support structure is dismantled later, it also needs to be manually moved to the holes before hoisting, which reduces construction efficiency. Summary of the Invention

[0005] To improve construction efficiency, this application provides a steel sleeve for the overall translation and launching of a tunnel boring machine.

[0006] This application provides a steel sleeve for the overall translational launching of a tunnel boring machine, which adopts the following technical solution:

[0007] A steel sleeve for the overall translational launching of a tunnel boring machine (TBM) includes a sleeve body for supporting the TBM and a support device mounted on the sleeve body for connection to the launching shaft to achieve support and positioning. The support device includes:

[0008] A base, which is mounted on the launching shaft;

[0009] The slide rail is set on the base and is arranged along the direction from the shield machine hoisting point to the starting point. The cylinder is placed on the slide rail and the base and slides on the slide rail and the base.

[0010] A pushing mechanism is provided on the cylinder and is used to drive the cylinder to move and to connect the cylinder to the slide for positioning.

[0011] By adopting the above technical solution, the base is hoisted into the launching shaft through the hole for fixed installation. Then, the slide rail is hoisted through the hole and fixedly installed on the base. Next, the cylinder is hoisted through the hole and placed on the slide rail and the base. Then, the tunnel boring machine is hoisted and installed on the cylinder. Then, the push mechanism is started to drive the cylinder to move. The movement of the cylinder moves the tunnel boring machine to the launching point. At the same time, the push mechanism is started to connect the cylinder and the slide rail together for positioning. Then the tunnel boring machine can start construction, thus saving the time spent in the tunnel boring machine launching process.

[0012] After the tunnel boring machine (TBM) starts construction and the tunnel body needs to be dismantled, the propulsion mechanism is activated to move the tunnel body back to the hoisting point. Then the tunnel body can be hoisted and moved away. Furthermore, the base and slide can be dismantled as needed, which saves the convenience of subsequent dismantling and assembly of the structures used to support the TBM and improves construction efficiency.

[0013] Optionally, the actuation mechanism includes:

[0014] Two cow legs are slidably disposed on the slide rail along the sliding direction of the cylinder and are spaced apart along the cylinder direction and located on both sides of the cylinder.

[0015] The first and second oil cylinders are respectively mounted on two brackets and are detachably connected to the cylinder body through a connecting assembly. The first and second oil cylinders are located on both sides of the cylinder body and their piston rods are in opposite states and are used to push and pull the cylinder body to move, respectively.

[0016] Two positioning components are disposed on two brackets and connected to a slide rail for positioning the two brackets;

[0017] A lubrication assembly is disposed on the cylinder and is used to lubricate the connection between the cylinder and the base and the slide.

[0018] By adopting the above technical solution, the two positioning components are activated and connected to the slide rail for positioning. The piston rod of the first hydraulic cylinder is in a retracted state while the piston rod of the second hydraulic cylinder is in an extended state, making the piston rod states of the first and second hydraulic cylinders opposite. Therefore, the extended piston rod of the first hydraulic cylinder pushes the cylinder to move, while the retracted piston rod of the second hydraulic cylinder pulls the cylinder to move, thus coordinating the movement of the cylinder together. The cylinder, under its own weight and the weight of the tunnel boring machine, presses against the base and the slide rail for positioning. The activation of the two positioning components unlocks the two brackets, and then the piston rod of the first hydraulic cylinder retracts while the piston rod of the second hydraulic cylinder... The piston rod extends, bringing the bracket connected to the first cylinder closer to the cylinder body, while the other bracket moves away from the cylinder body. Then, the two positioning components are activated, connecting the brackets to the slide rails. This continues to push the cylinder body and the tunnel boring machine to move. Thus, by continuously pushing the cylinder body at intervals, long-distance transportation can be achieved with a small stroke of the first and second cylinders. Moreover, the force is distributed by the two brackets, and the lubrication components provide lubrication, reducing the resistance encountered by the cylinder body during movement, lowering the probability of bracket deformation under stress, improving the stability of transportation, and increasing transportation efficiency, thereby improving construction efficiency.

[0019] Meanwhile, the positioning component is mounted on the bracket. After the movement is completed, the positioning component is activated and connected to the bracket, thereby connecting the pushing mechanism to the slide. When disassembly is required, the positioning component is activated and disengaged from the bracket, thus disengaging the pushing mechanism from the slide, enabling the subsequent disassembly of the cylinder. This improves the convenience of the installation process. In addition, both the first and second hydraulic cylinders are detachably connected to the cylinder, allowing the cylinder and pushing mechanism to be transported separately during installation and disassembly, further improving the convenience of the installation process and increasing construction efficiency.

[0020] Optionally, multiple first and second hydraulic cylinders are provided at intervals, and the connecting assembly includes:

[0021] A connecting plate, which is disposed on the cylinder;

[0022] Multiple fixing plates are respectively set on multiple first cylinder piston rods and can be detachably installed on the connecting plate.

[0023] By adopting the above technical solution, multiple first cylinder piston rods are connected together by a fixed plate and a connecting plate. The connecting plate enables multiple first cylinder piston rods to move simultaneously, resulting in balanced and uniform force. Furthermore, the connecting plate disperses the force received, thereby further reducing the probability of deformation of the bracket due to force and improving construction efficiency.

[0024] Optionally, the positioning component includes:

[0025] A positioning cylinder, wherein the positioning cylinder is mounted on the bracket;

[0026] A positioning plate is mounted on the piston rod of the positioning cylinder and presses against the slide rail for positioning.

[0027] A positioning block is disposed on a positioning plate and inserted into a slide rail for positioning.

[0028] By adopting the above technical solution, the positioning cylinder starts and drives the positioning block to be inserted and installed on the slide rail, while the positioning plate presses against the slide rail for positioning, thereby connecting the bracket and the slide rail together. The positioning cylinder starts and drives the positioning plate away from the slide rail and the positioning block separates from the slide rail, thus separating the bracket from the slide rail.

[0029] Optionally, at least two slides are provided at intervals, and at least two positioning components are provided between two adjacent slides. Multiple positioning grooves are provided at intervals on the sidewall of the slide along the sliding direction of the cylinder. Multiple positioning blocks are provided at intervals on each positioning plate and are inserted into and cooperate with multiple positioning grooves located on the same slide. The positioning plate presses against the sidewall of the slide for positioning.

[0030] By adopting the above technical solution, the two positioning cylinders located between two adjacent slides are activated, causing the two positioning plates to press against the side walls of the two slides on opposite sides. At the same time, multiple positioning blocks on the same positioning plate are inserted and installed in the positioning groove. The multiple positioning blocks disperse the force on the bracket, thereby improving the stability during positioning and reducing the probability of the bracket deforming due to force, thus improving construction efficiency.

[0031] Optionally, a support plate is detachably mounted on the cylinder and slidably disposed on the slide and the base. A lubrication cavity communicating with the lubrication assembly is opened in the support plate. The first oil cylinder and the second oil cylinder are detachably connected to the support plate. A plurality of lubrication holes communicating with the lubrication cavity are evenly opened on the lower surface of the support plate.

[0032] By adopting the above technical solution, during installation, the entire bearing plate and lubrication assembly are hoisted and installed onto the base and slide rail. Then, the first hydraulic cylinder, the second hydraulic cylinder, the two brackets, and the two positioning assemblies are all fixedly installed onto the bearing plate. Finally, the cylinder body is fixedly installed onto the bearing plate, thereby improving the convenience of installation and increasing construction efficiency.

[0033] Simultaneously, the lubrication components are activated, and lubricating oil is added sequentially through the lubrication chamber and lubrication holes to the connection between the cylinder and the base and slide rail, thereby achieving lubrication. Moreover, lubricating oil is added as the cylinder moves, thus reducing lubricating oil waste, improving construction efficiency, and lowering construction costs while achieving lubrication.

[0034] Optionally, the lubrication holes are arranged in multiple rows at intervals along the sliding direction of the cylinder, with adjacent rows of lubrication holes staggered from each other. The lubrication assembly includes:

[0035] A lubricating oil tank, which is mounted on a support plate and contains lubricating oil;

[0036] An oil pump is mounted on a support plate and connected to a lubricating oil tank.

[0037] A connecting pipe is disposed on a support plate and communicates with a lubrication cavity;

[0038] The oil pipe is mounted on the oil pump and plugged into the connecting pipe.

[0039] By adopting the above technical solution, lubricating oil is added through multiple rows of staggered lubrication holes. As the cylinder moves, the lubricating oil moves and disperses, making the lubricating oil spread more evenly, thereby improving the lubrication effect and construction efficiency. When the first and second oil cylinders are started, the oil pump starts, and the lubricating oil in the lubrication tank enters the lubrication chamber through the oil pipe and connecting pipe. Finally, the lubricating oil is added to the connection between the cylinder and the base and the slide, thereby achieving lubrication.

[0040] Optionally, multiple cylindrical bodies are spaced apart and spliced ​​together, and the cylindrical bodies include;

[0041] The lower arc-shaped cylinder and the upper arc-shaped cylinder are provided with a crossbeam that can be detachably connected to the bearing plate on the lower surface of the lower arc-shaped cylinder. The upper arc-shaped cylinder and the lower arc-shaped cylinder are connected together by a fixing component and cooperate to form an installation cavity for the installation of the tunnel boring machine.

[0042] By adopting the above technical solution, the lower arc-shaped cylinder is first hoisted and fixedly installed onto the bearing plate, and then the tunnel boring machine can be fixedly installed inside the lower arc-shaped cylinder. Next, the upper arc-shaped cylinder is fixedly installed onto the lower arc-shaped cylinder to form an installation cavity, so that the tunnel boring machine is located inside the installation cavity, thereby improving the convenience of tunnel boring machine installation and improving construction efficiency.

[0043] The enclosed space of the installation chamber provides a balance of water and soil pressure at the tunnel face, creating a balanced environment before the tunnel boring machine breaks through the portal. This allows for a start-up process equivalent to conventional tunneling, reducing the probability of collapse due to underpressure or leakage during the tunnel boring machine's start-up and further improving construction efficiency.

[0044] Optionally, the fixing component includes:

[0045] Multiple guide posts are provided on the lower arc-shaped cylinder and are in the shape of a frustum. The upper arc-shaped cylinder has multiple insertion holes that are inserted and engaged with the guide posts.

[0046] A fixing screw, which passes through a plug hole and a guide post;

[0047] A fixing nut is provided, and the fixing screw is threaded onto the fixing screw and abuts against the lower arc-shaped cylinder for positioning.

[0048] By adopting the above technical solution, the upper arc-shaped cylinder moves downward, and through multiple insertion holes and multiple guide posts, the upper and lower arc-shaped cylinders can be aligned. Then, the upper arc-shaped cylinder moves downward, allowing multiple guide posts to be inserted into multiple insertion holes. Then, the fixing screw passes through the insertion holes and guide posts, and then the fixing nut is threaded onto the fixing screw and pressed against the lower arc-shaped cylinder for positioning. This achieves a fixed connection between the upper and lower arc-shaped cylinders to form a cylinder body, improving the convenience of installation and disassembly and increasing construction efficiency.

[0049] Optionally, a support assembly for the tunnel boring machine is provided on the lower arc-shaped cylinder, the support assembly including:

[0050] Multiple steel bars are placed at intervals on the inner wall of the lower arc-shaped cylinder and press against the tunnel boring machine. A support cavity is formed between two adjacent steel bars, the lower arc-shaped cylinder and the tunnel boring machine.

[0051] A sand pad layer, which is formed by filling the support cavity with sand and is used to support and cushion the tunnel boring machine.

[0052] By adopting the above technical solution, the tunnel boring machine (TBM) is hoisted and moved downwards. Then, multiple steel bars are placed at intervals on the inner wall of the lower arc-shaped cylinder. The TBM presses down against the multiple steel bars for positioning. Thus, a support cavity is formed between two adjacent steel bars, the lower arc-shaped cylinder, and the TBM. Finally, sand is filled into the support cavity to form a sand pad layer. Therefore, the steel bars and the sand pad layer support and buffer the TBM, improving the stability of the TBM during operation and increasing construction efficiency.

[0053] In summary, this application includes at least one of the following beneficial technical effects:

[0054] The entire structure is installed using a hoisting device through a hole. Then, a drive mechanism is activated to move the tunnel boring machine (TBM) to the starting point, allowing the TBM to begin construction. This saves time during the TBM's initial launch. When the tunnel body needs to be dismantled, the drive mechanism is activated to move the tunnel body back to the hoisting point, where it can then be lifted and removed. This saves time and improves the convenience of subsequent dismantling and assembly of structures used to support the TBM, thus increasing construction efficiency. Attached Figure Description

[0055] Figure 1 This is a three-dimensional structural diagram of this application;

[0056] Figure 2This is a partial exploded view of this application;

[0057] Figure 3 This is a schematic diagram of the connection component in this application.

[0058] Reference numerals: 1. Cylinder; 11. Lower arc-shaped cylinder; 12. Upper arc-shaped cylinder; 13. Crossbeam; 14. First cross plate; 15. Second cross plate; 16. Mounting cavity; 17. Tunnel boring machine; 2. Support device; 21. Base; 22. Slide rail; 23. Positioning groove; 24. Bearing plate; 3. Pushing mechanism; 31. Bracket; 32. First hydraulic cylinder; 33. Second hydraulic cylinder; 34. Positioning assembly; 35. Positioning hydraulic cylinder; 36. Fixed... Positioning plate; 37. Positioning block; 4. Lubrication assembly; 41. Lubricating oil tank; 42. Oil pump; 43. Connecting pipe; 44. Oil pipe; 5. Fixing assembly; 51. Guide post; 52. Fixing screw; 53. Fixing nut; 54. Insertion hole; 6. Support assembly; 61. Steel rod; 62. Sand pad layer; 63. Support cavity; 7. Connecting assembly; 71. Connecting plate; 72. Fixing plate; 73. Connecting screw; 74. Connecting nut. Detailed Implementation

[0059] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0060] This application discloses a steel sleeve for the overall translational launching of a tunnel boring machine.

[0061] Reference Figure 1 The shield machine overall translation shield launching steel sleeve includes a cylinder 1 for supporting the shield machine 17 and a support device 2 set on the cylinder 1 for connecting with the launching shaft to achieve support and positioning.

[0062] Reference Figure 1 The support device 2 includes a base 21, a slide rail 22, and a pushing mechanism 3. The base 21 is fixedly installed on the bottom wall of the launching shaft, and the slide rail 22 is fixedly installed on the upper surface of the base 21. The slide rail 22 extends horizontally along the hole through which the hoisting equipment enters to the starting point of the tunnel boring machine 17. At the same time, multiple slide rails 22 are spaced apart along the direction perpendicular to the length of the slide rail 22. The number of slide rails 22 is at least two or even more.

[0063] Reference Figure 1Multiple cylindrical bodies 1 are spaced apart and spliced ​​together along the length direction perpendicular to the slide rail 22. The axis of the cylindrical body 1 is perpendicular to the length direction of the slide rail 22. Each cylindrical body 1 has a detachable support plate 24 that is slidably mounted on the base 21 and the slide rail 22. After the support plate 24 is lowered, it can be placed on the base 21 and the slide rail 22. The support plate 24 has spaced-apart clearance holes for the slide rail 22 to pass through. At the same time, the support plate 24 extends to the inside of the slide rail 22 and slides along the length direction of the slide rail 22. The cylindrical body 1 includes a lower arc-shaped cylinder 11 and an upper arc-shaped cylinder 12 spaced apart. A crossbeam 13 for support is fixedly installed on the lower surface of the lower arc-shaped cylinder 11. The crossbeam 13 is detachably mounted on the upper surface of the support plate 24 by screws. The upper arc-shaped cylinder 12 is located above the lower arc-shaped cylinder 11 and is connected together by a fixing component 5 to form an installation cavity 16. The tunnel boring machine 17 is installed in the installation cavity 16.

[0064] Reference Figure 1 and Figure 2 The fixing component 5 includes multiple guide posts 51, fixing screws 52, and fixing nuts 53. A horizontal first transverse plate 14 is integrally provided on both opposite outer side walls of the lower arc-shaped cylinder 11, while a horizontal second transverse plate 15 is integrally provided on both opposite side walls of the upper arc-shaped cylinder 12. After the upper arc-shaped cylinder 12 and the lower arc-shaped cylinder 11 are installed together, the two second transverse plates 15 are respectively positioned on the two first transverse plates 14. Multiple guide posts 51 are respectively fixedly installed on the upper surface of the two first transverse plates 14. The guide posts 51 are vertical and have a hollow, frustum-shaped structure. Meanwhile, the outer diameter of the top end of the guide post 51 is smaller than the outer diameter of the bottom end; the second horizontal plate 15 is provided with insertion holes 54 at the corresponding positions of the multiple guide posts 51, and the multiple insertion holes 54 are respectively inserted and engaged with the multiple guide posts 51; multiple fixing screws 52 and fixing nuts 53 are provided and are provided one-to-one with the multiple insertion holes 54. The fixing screws 52 extend vertically through the insertion holes 54, the guide posts 51 and the first horizontal plate 14 to the bottom of the first horizontal plate 14, and the fixing nuts 53 are threadedly connected to the fixing screws 52 and are pressed against the lower surface of the first horizontal plate 14 for positioning.

[0065] A support assembly 6 for supporting the tunnel boring machine 17 is provided on the lower arc-shaped cylinder 11 and inside the installation cavity 16. The support assembly 6 includes multiple steel bars 61 and a sand pad layer 62. The multiple steel bars 61 are placed on the inner wall of the lower arc-shaped cylinder 11 as needed. The axes of the steel bars 61 and the lower arc-shaped cylinder 11 are parallel, and the multiple steel bars 61 are arranged circumferentially around the axis of the lower arc-shaped cylinder 11. After the tunnel boring machine 17 is placed, it is pressed against the multiple steel bars 61 for positioning. A support cavity 63 is formed between two adjacent steel bars 61, the inner wall of the lower arc-shaped cylinder 11 and the tunnel boring machine 17. The sand pad layer 62 is formed by filling the support cavity 63 with sand. The sand pad layer 62 is used to support and buffer the tunnel boring machine 17.

[0066] During installation, the bearing plate 24 is placed on the base 21, and then the lower arc-shaped cylinder 11 is hoisted and installed sequentially, so that the crossbeam 13 on the lower arc-shaped cylinder 11 is fixedly connected to the bearing plate 24. Then, the tunnel boring machine 17 is hoisted and moved downwards. Then, workers place multiple steel bars 61 on the inner wall of the lower arc-shaped cylinder 11 as needed. After the tunnel boring machine 17 is placed, it presses against the multiple steel bars 61 for positioning. Then, padding sand is filled into the support cavity 63 to form a padding sand layer 62. Therefore, the steel bars 61 and the padding sand layer 62 are used for support. The tunnel boring machine 17 provides support and cushioning; then the upper arc-shaped cylinder 12 is hoisted and installed. The upper arc-shaped cylinder 12 moves down so that multiple guide columns 51 are respectively inserted into multiple insertion holes 54 for positioning. At the same time, the second horizontal plate 15 is placed on the first horizontal plate 14 for positioning. Then, the fixing screw 52 passes through the insertion hole 54, the guide column 51 and the first horizontal plate 14. Next, the fixing nut 53 is threaded to the fixing screw 52 and pressed against the lower surface of the first horizontal plate 14 for positioning, thereby realizing the installation of the cylinder 1 and the tunnel boring machine 17.

[0067] Reference Figure 1 and Figure 2 The pushing mechanism 3 is mounted on the cylinder 1 and is used to drive the cylinder 1 to move and to connect the cylinder 1 to the slide 22 for positioning. The pushing mechanism 3 includes two brackets 31, a first oil cylinder 32 and a second oil cylinder 33, two positioning components 34, and a lubrication component 4. The two brackets 31 are spaced apart along the length of the slide 22 and are located on both sides of the cylinder 1 and the support plate 24. The length of the brackets 31 is perpendicular to the length of the slide 22. Multiple pushing holes for the slide 22 to pass through are provided on the brackets 31. After the brackets 31 move down, they can be placed on the slide 22 and the base 21, so that the brackets 31 slide along the length of the slide 22 and are installed on the slide 22 and the base 21. Positioning grooves 23 are provided on both opposite side walls of the slide 22 that are perpendicular to the length of the slide 22. The positioning grooves 23 are spaced apart along the length of the slide 22.

[0068] The first hydraulic cylinder 32 and the second hydraulic cylinder 33 are both fixedly installed on the side wall of the two brackets 31 near the support plate 24. The first hydraulic cylinder 32 is located on the side of the support plate 24 near the hole through which the equipment enters, while the second hydraulic cylinder 33 is located on the side of the support plate 24 near the starting point of the tunnel boring machine 17. The piston rod axes of the first hydraulic cylinder 32 and the second hydraulic cylinder 33 are parallel to the length of the slide rail 22, and the piston rods of the first hydraulic cylinder 32 and the second hydraulic cylinder 33 are in opposite states. When the piston rod of the first hydraulic cylinder 32 is extended, the piston rod of the second hydraulic cylinder 33 is retracted, and when the piston rod of the first hydraulic cylinder 32 is retracted, the piston rod of the second hydraulic cylinder 33 is extended. When the equipment is just installed through the hole, the piston rod of the first hydraulic cylinder 32 is retracted, while the piston rod of the second hydraulic cylinder 33 is extended.

[0069] Reference Figure 2 and Figure 3 The piston rods of the first hydraulic cylinder 32 and the second hydraulic cylinder 33 extend to the support plate 24 and are connected to the support plate 24 by the connecting assembly 7. Multiple first hydraulic cylinders 32 and multiple second hydraulic cylinders 33 are arranged at intervals along the length direction perpendicular to the slide rail 22. The following explanation takes the connecting assembly 7 connected to multiple first hydraulic cylinders 32 as an example. The connecting assembly 7 includes a connecting plate 71 and multiple fixing plates 72. The connecting plate 71 is fixedly installed on the upper surface of the support plate 24, and the length direction of the connecting plate 71 is perpendicular to the length direction of the slide rail 22. Multiple fixing plates 72 are respectively fixedly installed on the piston rods of multiple first hydraulic cylinders 32, and multiple fixing plates 72 abut against the connecting plate 71 and are positioned by connecting screws 73 and connecting nuts 74. The connecting screws 73 pass horizontally through the connecting plate 71 and the fixing plates 72, and the connecting nuts 74 are threadedly connected to the connecting screws 73 and abut against the fixing plates 72 for positioning.

[0070] Reference Figure 1 and Figure 2 Two positioning components 34 are respectively installed on two brackets 31, and the positioning components 34 are connected to the slide rails 22 and used to position the two brackets 31. At least two positioning components 34 are provided between each of the two adjacent slide rails 22. The two positioning components 34 are respectively connected to the positioning grooves 23 on the opposite side of the two adjacent slide rails 22 for positioning. The positioning component 34 includes a positioning cylinder 35, a positioning plate 36 and a positioning block 37. The positioning cylinder 35 is fixedly installed on the side wall of the bracket 31 away from the bearing plate 24, and the piston rod axis of the positioning cylinder 35 is perpendicular to the length direction of the slide rail 22. The positioning plate 36 is fixedly installed on the piston rod of the positioning cylinder 35 and the positioning plate 36 is pressed against the slide rail 22 for positioning. Multiple positioning blocks 37 are provided. The multiple positioning blocks 37 are arranged in an array along the length direction of the slide rail 22 and the array distance is the same as the array distance of the multiple positioning grooves 23.

[0071] Two positioning cylinders 35 located between two adjacent slide rails 22 are activated simultaneously, causing two positioning plates 36 to press against the side walls of the two slide rails 22 on opposite sides. Multiple positioning blocks 37 located on the same positioning plate 36 are inserted into the positioning grooves 23 of the same slide rail 22, so that the positioning blocks 37 on the two positioning plates 36 are respectively inserted into the positioning grooves 23 of the two slide rails 22, so that the two brackets 31 and the slide rails 22 are connected together for positioning. When movement is required, the positioning cylinders 35 are activated to disengage the positioning plates 36 and positioning blocks 37 from the slide rails 22, thereby unlocking the two brackets 31, and then the two brackets 31 can move freely.

[0072] After placing the support plate 24 onto the base 21 and slide rail 22, the bracket 31, the first hydraulic cylinder 32, and the positioning component 34 are hoisted into place. The bracket 31 is placed onto the base 21 and slide rail 22, and then the first hydraulic cylinder 32 is connected to the support plate 24. The second hydraulic cylinder 33 is then connected to the support plate 24 in the same way. Then, the positioning components 34 on both brackets 31 are activated, connecting both brackets 31 to the slide rail 22. This connects the pushing mechanism 3 to the support plate 24, thereby positioning the support plate 24. Then, the cylinder 1 and the tunnel boring machine 17 can be installed, thus completing the installation of the entire equipment.

[0073] Reference Figure 1 and Figure 2 When movement is required, the piston rod of the first cylinder 32 extends while the piston rod of the second cylinder 33 retracts, thereby pushing and pulling the bearing plate 24, the cylinder 1, and the tunnel boring machine 17 together to move closer to the starting point of the tunnel boring machine 17. After the movement is completed, the positioning components 34 on the two brackets 31 are activated to unlock the two brackets 31. Then, the piston rod of the first cylinder 32 retracts while the piston rod of the second cylinder 33 extends, so that the two brackets 31 move along the moving direction of the bearing plate 24 and closer to the starting point of the tunnel boring machine 17. Then, the positioning components 34 on the two brackets 31 continue to be activated to position the two brackets 31. This process is repeated to achieve continuous and intermittent driving of the cylinder 1 and the tunnel boring machine 17 toward the starting point of the tunnel boring machine 17, thereby improving construction efficiency.

[0074] The support plate 24 has a lubrication cavity inside, and multiple rows of lubrication holes are spaced apart on the lower surface of the support plate 24 along the sliding direction of the cylinder 1. The lubrication holes in adjacent rows are staggered. At the same time, multiple lubrication holes are spaced apart along the length of the slide 22 perpendicular to the length of the slide 22, and the lubrication holes are connected to the lubrication cavity. The lubrication component 4 is installed on the support plate 24 and is connected to the lubrication cavity. After the lubrication component 4 is activated, lubricating oil is added to the connection between the support plate 24 and the slide 22 and the base 21 through the lubrication holes to perform lubrication.

[0075] Reference Figure 1 and Figure 2The lubrication assembly 4 includes a lubricating oil tank 41, an oil pump 42, a connecting pipe 43, and an oil pipe 44. A horizontal mounting plate is fixedly installed on the side wall of the support plate 24. The lubricating oil tank 41 is fixedly installed on the upper surface of the mounting plate and contains lubricating oil. The oil pump 42 is fixedly installed on the upper surface of the mounting plate and communicates with the lubricating oil tank 41. A control plate for controlling the start and stop of the oil pump 42 is fixedly installed on the support plate 24. When the support plate 24 moves, the control plate controls the oil pump 42 to start. The connecting pipe 43 is fixedly installed on the outer side wall of the support plate 24 and communicates with the lubrication cavity. The oil pipe 44 is fixedly installed on the oil pump 42, and the oil pipe 44 is inserted into the connecting pipe 43. When the oil pump 42 starts, the lubricating oil enters the lubrication cavity through the oil pipe 44 and the connecting pipe 43. Finally, the lubricating oil is added to the connection between the support plate 24 and the base 21 and the slide 22 through the lubrication hole to lubricate, reducing the resistance generated when the support plate 24 moves.

[0076] The working principle of this application embodiment is as follows:

[0077] Using the hole hoisting structure, the base 21 is first fixedly installed on the bottom wall of the launching shaft, then multiple slide rails 22 are fixedly installed, and then the bearing plate 24 is hoisted and placed on the base 21. Next, the pushing mechanism 3 is connected to the bearing plate 24, and then the positioning component 34 is activated to connect the two brackets 31 to the slide rails 22, thereby positioning the bearing plate 24. Then, the lower arc cylinder 11, the shield machine 17 and the upper arc cylinder 12 are installed in sequence to complete the installation of the entire equipment.

[0078] When movement is required, the piston rod of the first cylinder 32 extends while the piston rod of the second cylinder 33 retracts, thereby pushing and pulling the cylinder 1 and the tunnel boring machine 17 together. After the movement is completed, the positioning components 34 on the two brackets 31 are activated to unlock the two brackets 31. Then, the piston rod of the first cylinder 32 retracts while the piston rod of the second cylinder 33 extends, causing the two brackets 31 to move. Then, the positioning components 34 on the two brackets 31 continue to activate to position the two brackets 31. This process is repeated to continuously drive the cylinder 1 and the tunnel boring machine 17 toward the starting point of the tunnel boring machine 17 until the tunnel boring machine 17 stops running at the starting point. Then, the tunnel boring machine 17 starts construction, thus saving the time spent on the starting of the tunnel boring machine 17. At the same time, when it is necessary to dismantle the cylinder 1 and other structures, the first cylinder 32, the second cylinder 33 and the positioning components 34 work together to drive the bearing plate 24 and the cylinder 1 back to the equipment entry point, thereby enabling the dismantling of subsequent structures and improving construction efficiency.

[0079] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A steel sleeve for the overall translational launching of a tunnel boring machine (TBM), characterized in that: Includes a cylinder (1) for supporting a tunnel boring machine (17), and a support device (2) mounted on the cylinder (1) for connection with the launching shaft to achieve support positioning, the support device (2) comprising: A base (21) is provided on the launching well; The slide (22) is set on the base (21) and is set along the direction from the hoisting point of the shield machine (17) to the starting point. The cylinder (1) is placed on the slide (22) and the base (21) and slides on the slide (22) and the base (21). A pushing mechanism (3) is provided on the cylinder (1) and is used to drive the cylinder (1) to move and to connect the cylinder (1) with the slide (22) for positioning; The propulsion mechanism (3) includes: Two cow legs (31) are slidably disposed on the slide rail (22) along the sliding direction of the cylinder (1) and spaced apart along the direction of the cylinder (1) and located on both sides of the cylinder (1); The first oil cylinder (32) and the second oil cylinder (33) are respectively mounted on two brackets (31) and are detachably connected to the cylinder (1) through a connecting assembly (7). The first oil cylinder (32) and the second oil cylinder (33) are located on both sides of the cylinder (1) and their piston rods are in opposite states and are used to push and pull the cylinder (1) to move respectively. Two positioning components (34) are disposed on two brackets (31) and connected to the slide rail (22) for positioning the two brackets (31); Lubrication assembly (4), which is disposed on the cylinder (1) and is used to lubricate the connection between the cylinder (1) and the base (21) and the slide (22); The positioning component (34) includes: Positioning cylinder (35), the positioning cylinder (35) is mounted on the bracket (31); Positioning plate (36), the positioning plate (36) is set on the piston rod of positioning cylinder (35) and presses against the slide (22) for positioning; Positioning block (37), which is disposed on positioning plate (36) and inserted into slide rail (22) for positioning; The cylinder (1) is detachably mounted with a support plate (24) that slides on the slide (22) and the base (21). The support plate (24) has a lubrication cavity that communicates with the lubrication assembly (4). The first oil cylinder (32) and the second oil cylinder (33) are detachably connected to the support plate (24). The lower surface of the support plate (24) has a plurality of lubrication holes that communicate with the lubrication cavity.

2. The steel sleeve for the overall translational launching of a tunnel boring machine according to claim 1, characterized in that: The first hydraulic cylinder (32) and the second hydraulic cylinder (33) are each provided in multiples at intervals, and the connecting assembly (7) includes: A connecting plate (71) is disposed on the cylinder (1); Multiple fixing plates (72) are respectively set on the piston rods of multiple first oil cylinders (32) and can be detachably installed on the connecting plate (71).

3. A steel sleeve for launching a tunnel boring machine (TBM) with overall translational movement, as described in claim 1, is characterized in that: At least two slides (22) are provided at intervals, and at least two positioning components (34) are provided between two adjacent slides (22). Multiple positioning grooves (23) are provided at intervals on the side wall of the slide (22) along the sliding direction of the cylinder (1). Multiple positioning blocks (37) are provided at intervals on each positioning plate (36) and are inserted into and cooperate with multiple positioning grooves (23) located on the same slide (22). The positioning plate (36) presses against the side wall of the slide (22) for positioning.

4. A steel sleeve for launching a tunnel boring machine (TBM) with overall translational movement, as described in claim 1, characterized in that: The lubrication holes are arranged in multiple rows at intervals along the sliding direction of the cylinder (1), and adjacent rows of lubrication holes are staggered. The lubrication assembly (4) includes: A lubricating oil tank (41) is mounted on a support plate (24) and contains lubricating oil. Oil pump (42), which is mounted on the support plate (24) and communicates with the lubricating oil tank (41); A connecting pipe (43) is disposed on a support plate (24) and communicates with a lubrication cavity; Oil pipe (44) is mounted on oil pump (42) and plugged into connecting pipe (43).

5. A steel sleeve for launching a tunnel boring machine (TBM) with overall translational movement, as described in claim 1, characterized in that: The cylindrical body (1) is provided with multiple parts at intervals and spliced ​​together, and the cylindrical body (1) includes; The lower arc-shaped cylinder (11) and the upper arc-shaped cylinder (12) are provided with a crossbeam (13) that is detachably connected to the bearing plate (24) on the lower surface of the lower arc-shaped cylinder (11). The upper arc-shaped cylinder (12) and the lower arc-shaped cylinder (11) are connected together by a fixing component (5) and cooperate to form an installation cavity (16) for the installation of the tunnel boring machine (17).

6. A steel sleeve for the overall translational launching of a tunnel boring machine according to claim 5, characterized in that: The fixing component (5) includes: Multiple guide posts (51) are arranged on the lower arc-shaped cylinder (11) and are in the form of a frustum. Multiple insertion holes (54) are provided on the upper arc-shaped cylinder (12) to be inserted and matched with the guide posts (51). A fixing screw (52) passes through a plug hole (54) and a guide post (51); The fixing nut (53) is threaded onto the fixing screw (52) and abuts against the lower arc-shaped cylinder (11) for positioning.

7. A steel sleeve for the overall translational launching of a tunnel boring machine according to claim 5, characterized in that: The lower arc-shaped cylinder (11) is provided with a support assembly (6) for the tunnel boring machine (17), the support assembly (6) including: Multiple steel bars (61) are placed at intervals on the inner wall of the lower arc-shaped cylinder (11) and press against the tunnel boring machine (17). A support cavity (63) is formed between two adjacent steel bars (61), the lower arc-shaped cylinder (11) and the tunnel boring machine (17). Sand cushion layer (62), which is formed by filling the support cavity (63) with sand cushion and is used to support and buffer the tunnel boring machine (17).

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