TBM tunnel lining precast block installation device and construction method

Abstract

The application discloses a TBM tunnel lining prefabricated block mounting device and a construction method, and aims to solve the technical problem that the existing trolley pouring mode is difficult to travel and affects material transportation and water supply in the tunnel. The mounting device mainly comprises a rear steel rail laid on the installed prefabricated block, a front steel rail laid at the bottom of the area of the prefabricated block to be installed, and a main beam frame arranged on the front steel rail and the rear steel rail through first walking wheels; the main beam frame is provided with a hoisting mechanism for hoisting the prefabricated block and a driving oil cylinder for driving the main beam frame to walk on the front steel rail and the rear steel rail. The lining work of the tunnel is carried out by hoisting the prefabricated block through the hoisting mechanism, and the movement of the device is carried out by supporting the installed prefabricated block through the driving oil cylinder, so that the operation is simple, the material transportation and water supply in the tunnel are not affected, the tunnel lining efficiency is greatly improved, and the technical problem that the existing technology is difficult to travel is effectively solved.

Description

Technical Field

[0001] This application relates to the field of tunnel boring equipment technology, specifically to a TBM tunnel lining precast block installation device and construction method. Background Technology

[0002] Currently, the lining construction process for TBM tunnels is time-consuming and overlaps with the tunneling process, creating conflicts between them. To ensure the efficient operation of TBM tunnel construction, most TBM tunnel projects adopt the method of tunneling through first and then lining. However, for long-distance single-ended TBM tunnels, delayed lining and failure to close the tunnel into a ring in time can easily lead to risks such as tunnel instability, collapse, and "closing down".

[0003] Therefore, for long tunnel projects with large variations in surrounding rock, fractures, and rich groundwater, there are two conventional construction methods to avoid subsequent tunnel instability, collapse, and "closure." One method is to use alternating excavation and lining construction, but this method leads to a disconnect in the excavation process, greatly extending the construction period and increasing construction costs. The second method is to use a frameless self-propelled multi-functional rail-mounted lining steel formwork trolley for in-situ concrete construction, which is carried out simultaneously with TBM excavation. However, practice has shown that this method has complex procedures and is prone to failure, leading to construction stoppages. The trolley is difficult to move, and water and road access must be cut off during movement, which seriously delays the transportation of TBM materials and water supply.

[0004] For the reasons mentioned above, it is necessary to provide a precast block installation device and construction method for TBM tunnel lining construction to ensure the synchronous progress of TBM tunnel excavation and lining construction.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the background technology of this disclosure and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0006] The inventors discovered through research that the installation of precast blocks at the bottom of the tunnel causes conflicts between TBM tunnel excavation and lining construction, making it impossible to carry out them simultaneously. Existing methods generally employ alternating construction of the two or use frameless self-propelled multi-functional rail-mounted lining steel formwork trolleys. However, alternating construction is inefficient and costly, while steel formwork trolleys are difficult to operate and move, and require water and road closures, affecting material transportation and water supply within the tunnel.

[0007] In view of at least one of the above technical problems, this disclosure provides a TBM tunnel lining precast block installation device and construction method. The device is driven by a hydraulic cylinder, which is simple and convenient to operate. The installation of precast blocks at the bottom of the tunnel is completed simultaneously with tunnel excavation, without affecting normal material transportation, and improves construction efficiency and shortens the construction period.

[0008] According to one aspect of this disclosure, a TBM tunnel lining precast block installation device is provided, mainly including a rear rail for laying on the installed precast blocks, a front rail for laying at the bottom of the area where the precast blocks are to be installed, and a main beam frame set on the front rail and the rear rail by a first traveling wheel.

[0009] The main beam frame is equipped with a hoisting mechanism for hoisting precast blocks and a driving hydraulic cylinder for driving the main beam frame to move on the front and rear rails.

[0010] In some embodiments of this disclosure, the end of the main beam frame to be installed with the precast block is connected to the rear end of the slag removal mechanism, and the slag removal mechanism is mounted on the front rail via a second traveling wheel;

[0011] The slag removal mechanism includes a main frame, support legs that support the main frame, a primary conveyor belt and a secondary conveyor belt installed on the main frame;

[0012] One end of the primary conveyor belt is close to the bottom of the tunnel, and the other end is positioned above one end of the secondary conveyor belt to transport the excavated soil from the tunnel surface to the secondary conveyor belt. The other end of the secondary conveyor belt is positioned above the TBM continuous belt to transport the excavated soil onto the TBM continuous belt and then out of the tunnel.

[0013] In some embodiments of this disclosure, the main beam frame includes support assemblies interconnected by connectors, and the support assemblies include support columns interconnected by support beams;

[0014] One of the support columns of each support assembly is mounted on the front rail via the first traveling wheel, and the other support column is mounted on the rear rail via the first traveling wheel.

[0015] In some embodiments of this disclosure, a turnout platform connected to the main beam frame is provided on the rear rail, and the turnout platform is connected to a rear climbing component;

[0016] The rear climbing assembly includes a rear climbing frame with a slope and a rear climbing rail mounted on the rear climbing frame.

[0017] The bottom of both the turnout platform and the rear climbing frame is equipped with a third traveling wheel corresponding to the rear rail, so that the drive cylinder drives the main beam frame and moves the turnout platform and the rear climbing rail.

[0018] In some embodiments of this disclosure, the bottom of the connector extends downward and is provided with a telescopic part, one end of the drive cylinder is fixedly connected to the telescopic part, and the other end of the drive cylinder is provided with a pad block. The drive cylinder drives the main beam frame to move by supporting the precast block installed on the pad block.

[0019] The lower end of the rear ramp rail is connected to the rear rail, and the upper end is connected to the track of the turnout platform. The connector is provided with a central track that is connected to the track of the turnout platform, so as to facilitate the transport trolley to travel to the installation area via the rear ramp rail and the turnout platform.

[0020] In some embodiments of this disclosure, the central track is connected to a translation cylinder that drives its translation, so as to facilitate the installation of precast blocks;

[0021] The piston rod of the translation cylinder is connected to the sleeper of the central track to facilitate the movement of the central track.

[0022] In some embodiments of this disclosure, the primary conveyor belt is mounted on one side of the main frame via a primary support column, and the secondary conveyor belt is mounted on the main frame via a secondary support column;

[0023] The main frame is provided with a transport track that is connected to the central track. The front end of the slag removal mechanism is connected to a front climbing component. The front climbing component includes a front climbing frame with a slope and a front climbing track laid on the front climbing frame.

[0024] The lower end of the front climbing rail is connected to the front steel rail, and the upper end is connected to the transport rail to ensure uninterrupted transport of materials inside the tunnel.

[0025] In some embodiments of this disclosure, the two sides of the connector are provided with balancing cylinders for balancing the main beam frame. One end of the balancing cylinder is connected to the connector, and the other end extends out and supports the tunnel wall when the precast blocks are installed, thereby ensuring the stability of the main beam frame.

[0026] In some embodiments of this disclosure, the hoisting mechanism includes a hoisting frame that moves along the support beam via rollers, a reel mounted on the hoisting frame for winding and unwinding a wire rope, a translation motor that drives the rollers to rotate, a rotation motor that drives the reel to rotate to wind and unwind the wire rope, and a clamping assembly mounted on the other end of the wire rope.

[0027] The clamping assembly includes a clamping body connected to the wire rope, a rotating disk mounted on the bottom of the clamping body, clamps mounted on the rotating disk corresponding to the lifting points of the precast blocks, and a rotary motor that drives the rotating disk to rotate laterally.

[0028] According to another aspect of this disclosure, a method for installing precast blocks for TBM tunnel lining is provided, implemented based on the aforementioned tunnel bottom precast block installation device, mainly including the following steps:

[0029] (1) Remove the front rails in the installation area that affect the installation of precast blocks, and transport the silt at the bottom of the tunnel in the installation area to the TBM continuous belt and then out of the tunnel through the slag removal mechanism;

[0030] (2) The precast block transport vehicle transports the precast blocks to be installed to the central track, the hoisting mechanism lifts the precast blocks, and the transport vehicle drives away from the main beam frame;

[0031] (3) The translation cylinder moves the center track to one side of the main beam frame, the hoisting mechanism lowers the precast block and adjusts the orientation of the precast block, and installs the precast block to the area to be installed;

[0032] (4) Fill the gaps between the precast blocks after installation with concrete to ensure a tight connection, and lay steel rails on the newly installed precast blocks;

[0033] (5) The entire device is moved forward by driving the hydraulic cylinder to support the precast blocks to carry out the next installation.

[0034] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0035] 1. This application can clean the silt at the bottom of the installation area by setting up a slag removal mechanism, thereby facilitating the installation of the bottom precast blocks.

[0036] 2. This application uses a hydraulic cylinder to support the precast blocks, which makes the device easy to operate. Furthermore, the use of front and rear climbing rails and a turnout platform allows for synchronous operation with material transportation without affecting other construction work inside the tunnel.

[0037] 3. This application uses precast blocks for tunnel bottom invert lining. The precast blocks are processed and manufactured outside the tunnel, saving the original invert lining construction processes such as reinforcing bar binding, formwork positioning, concrete pouring, and equal strength demolding, which greatly improves the tunnel bottom lining speed. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the structure of an embodiment of this application.

[0039] Figure 2 This is one of the structural schematic diagrams of the main beam frame in one embodiment of this application.

[0040] Figure 3 This is a second schematic diagram of the main beam frame in one embodiment of this application.

[0041] Figure 4 for Figure 3 Enlarged view of section A.

[0042] Figure 5 for Figure 3 Enlarged view of section B in the middle.

[0043] Figure 6 This is a schematic diagram of the slag removal mechanism in one embodiment of this application.

[0044] Figure 7 This is a schematic diagram of the turnout platform in one embodiment of this application.

[0045] Figure 8 This is a schematic diagram of the hoisting mechanism in one embodiment of this application.

[0046] Figure 9 for Figure 8 Enlarged view of section A.

[0047] In the above figures, 1 is the front rail, 2 is the rear rail, 21 is the installed precast block, 211 is the lifting point, 3 is the main beam frame, 11 is the supporting crossbeam, 12 is the supporting column, 121 is the first traveling wheel, 13 is the reinforcing rib, 14 is the connecting piece, 141 is the extension, 15 is the center rail, 16 is the drive cylinder, 161 is the pad block, 17 is the balance cylinder, 18 is the translation cylinder, 4 is the slag removal mechanism, 41 is the main frame, 42 is the transport rail, and 43 is the primary transport belt. 44 is the primary support column, 45 is the secondary conveyor belt, 46 is the secondary support column, 5 is the turnout platform, 51 is the turnout lever plate, 52 is the third traveling wheel, 6 is the front climbing rail, 7 is the rear climbing rail, 8 is the hoisting mechanism, 81 is the hoisting frame, 811 is the roller, 82 is the translation motor, 83 is the reel, 84 is the rotation motor, 85 is the wire rope, 86 is the clamp assembly, 861 is the clamp body, 862 is the rotation motor, 863 is the rotary disk, and 864 is the clamp. Detailed Implementation

[0048] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "vertical," "horizontal," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. The terms "first," "second," etc., used in this application are used to distinguish the described objects and do not have any sequential or technical meaning. And the terms "connection" and "linkage," unless otherwise specified, include both direct and indirect connections (linkages).

[0049] Unless otherwise specified, the unit modules, components, structures, mechanisms, and other devices involved in the following embodiments are all commercially available products.

[0050] This application provides a TBM tunnel lining precast block installation device and construction method, which solves the technical problems of existing methods for on-site concrete construction using frameless self-propelled multi-functional rail-mounted lining steel formwork trolleys, which involve complex procedures, difficulty in advancement, and impact on material transportation and water supply within the tunnel. By installing precast blocks, tunnel excavation and tunnel lining can be carried out simultaneously.

[0051] The technical solution in this application embodiment is to solve the aforementioned technical problems of difficulty in advancing and impact on material transportation and water supply within the tunnel. The overall approach is as follows:

[0052] The installation of precast blocks using an installation device can effectively avoid affecting material transportation and water supply within the tunnel. The installation device mainly includes a rear rail laid on the precast blocks, a front rail laid at the bottom of the area where the precast blocks are to be installed, and a main beam frame mounted on the front and rear rails via first traveling wheels. The main beam frame is equipped with a hoisting mechanism for hoisting the precast blocks and a drive cylinder for driving the main beam frame to travel on the front and rear rails.

[0053] The aforementioned main beam frame includes support assemblies connected to each other on both sides of the front and rear rails via connectors. Each support assembly includes support columns connected to each other via support beams. One of the support columns of each support assembly is mounted on the front rail via the first traveling wheel, and the other support column is mounted on the rear rail via the first traveling wheel.

[0054] The bottom of the aforementioned connector extends downwards and is provided with a telescopic part. One end of the drive cylinder is fixedly connected to the telescopic part, and the other end of the drive cylinder is provided with a pad. The drive cylinder drives the main beam frame to move by supporting the precast block installed on the pad. This effectively solves the technical problem that the existing casting trolley is difficult to advance and affects the material transportation and water supply in the tunnel.

[0055] To better understand the technical solution of this application, the above technical solution will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0056] Example 1

[0057] This example discloses a TBM tunnel lining precast block installation device. See [link / reference] Figure 1It mainly includes a rear rail (2) laid on the precast blocks (21) that have been installed, a front rail (1) laid at the bottom of the area where the precast blocks to be installed are to be installed, and a main beam frame (3) set on the front rail (1) and the rear rail (2) by the first traveling wheel (121).

[0058] Furthermore, such as Figure 2 and Figure 3 As shown, the main beam frame (3) is equipped with a hoisting mechanism (8) for hoisting precast blocks and a drive cylinder (16) for driving the main beam frame (3) to travel on the front rail (1) and the rear rail (2); furthermore, the main beam frame (3) includes two support components connected to each other by a connector (14), and the support components include support columns (12) connected to each other by a support beam (11); as Figure 4 As shown, one of the two support components, the support column (12), is mounted on the front rail (1) via the first traveling wheel (121), and the other support column (12) is mounted on the rear rail (2) via the first traveling wheel (121). A reinforcing rib (13) is provided between the support column (12) and the support beam (11) to improve the stability of the support component.

[0059] In addition, such as Figure 8 As shown, the hoisting mechanism (8) includes a hoisting frame (81) that moves along the support beam (11) via rollers (811), a reel (83) mounted on the hoisting frame (81) for winding the wire rope (85), a translation motor (82) that drives the rollers (811) to rotate, a rotation motor (84) that drives the reel (83) to rotate to wind the wire rope (85), and a clamp assembly (86) mounted on the other end of the wire rope (85). Specifically, there are two reels (83), and two wire ropes (85) are wound on each reel (83) to securely hoist the clamp assembly (86).

[0060] Furthermore, such as Figure 9As shown, the clamp assembly (86) includes a clamp body (861) connected to the wire rope (85), a rotating disk (863) mounted on the bottom of the clamp body (861), a clamp mounted on the rotating disk (863) corresponding to the precast block lifting point (211), and a rotary motor (862) that drives the rotating disk (863) to rotate laterally. Specifically, when hoisting the precast blocks, after the precast block transport vehicle moves onto the central track (15), the rotating motor (84) rotates the reel (83) to wind up the clamp assembly (86) at the other end of the wire rope (85). After the clamp hooks the precast block, the rotating motor (84) winds up the wire rope (85) and then lifts the precast block. After the transport vehicle leaves and the central track (15) is moved away, the rotating motor (84) rotates the wire rope (85) again to lift the precast block. The rotating motor (862) rotates the rotating disk (863) to make the precast block rotate to a suitable angle to fit with the installed precast block (21), thereby completing the hoisting of the precast block.

[0061] Furthermore, the main beam frame (3) is connected to the rear end of the precast block to be installed by the slag cleaning mechanism (4). The connection between the main beam frame (3) and the slag cleaning mechanism (4) is detachable, such as by using ear plates and bolts, to facilitate disassembly and assembly later. The slag cleaning mechanism (4) is mounted on the front rail (1) via a second traveling wheel. Further, such as Figure 6 As shown, the slag removal mechanism (4) includes a main frame (41), legs supporting the main frame (41), a primary conveyor belt and a secondary conveyor belt installed on the main frame (41).

[0062] Specifically, one end of the primary conveyor belt is close to the bottom of the tunnel, and the other end is positioned above one end of the secondary conveyor belt to transport the excavated soil from the tunnel surface to the secondary conveyor belt. The other end of the secondary conveyor belt is positioned above the TBM continuous belt to transport the excavated soil to the TBM continuous belt and then out of the tunnel.

[0063] In addition, the primary conveyor belt is installed on one side of the main frame (41) via a primary support column (44), and the secondary conveyor belt is erected on the main frame (41) via a secondary support column (46). The primary conveyor belt is set on one side of the main frame (41) to prevent it from affecting the transportation of materials in the tunnel. The secondary conveyor belt is set in parallel, and multiple secondary support columns (46) are set at its bottom. The secondary support columns (46) are unobstructed, which is conducive to the transportation of materials. A transportation track (42) connected to the central track (15) is laid on the main frame (41). The front end of the slag removal mechanism (4) is connected to a front climbing component. Further, the front climbing component includes a front climbing frame with a slope and a front climbing rail (6) laid on the front climbing frame. The lower end of the front climbing rail (6) is connected to the front steel rail (1), and the upper end is connected to the transportation track (42) to ensure uninterrupted transportation of materials in the tunnel.

[0064] A turnout platform (5) connected to the main beam frame (3) is provided on the rear rail (2), and a rear climbing assembly is connected to the turnout platform (5); further, the rear climbing assembly includes a rear climbing frame with a slope and a rear climbing rail (7) provided on the rear climbing frame; in addition, as Figure 7 As shown, the turnout platform (5) is equipped with a turnout lever plate (51) to control the connection of the central track (15) with the rails of different tracks.

[0065] In addition, the bottom of the turnout platform (5) and the rear climbing frame are provided with a third traveling wheel (52) corresponding to the rear rail (2), so that the driving cylinder (16) drives the main beam frame (3) and drives the turnout platform (5) and the rear climbing rail (7) to move.

[0066] Furthermore, the bottom of the connector (14) extends downwards with a telescopic portion, on which one end of the drive cylinder (16) is fixedly connected, such as... Figure 5 As shown, a pad (161) is provided at the other end of the driving cylinder (16), and the driving cylinder (16) drives the main beam frame (3) to move by supporting the precast block (21) installed by the pad (161);

[0067] The lower end of the rear climbing rail (7) is connected to the rear rail (2), and the upper end is connected to the track of the turnout platform (5). The connecting piece (14) is provided with a central track (15) that is connected to the track of the turnout platform (5) to facilitate the transport trolley to travel to the installation area via the rear climbing rail (7) and the turnout platform (5). Specifically, the angle of the front climbing frame and the rear climbing frame is ≤3%, and the front climbing rail (6) is a single-track climbing rail, while the rear climbing rail (7) is a double-track climbing rail to achieve the connection between the original track and the central track (15).

[0068] The central track (15) is connected to a translation cylinder (18) that drives it to move horizontally, so as to facilitate the installation of the precast blocks; when the hoisting mechanism (8) lifts the precast blocks, the translation cylinder (18) drives the central track (15) to move to one side of the connector (14), thereby making the installation of the precast blocks below unobstructed; specifically, the piston rod of the translation cylinder (18) is connected to the sleeper of the central track (15) to facilitate the movement of the central track (15).

[0069] The connector (14) has balancing cylinders (17) on both sides for balancing the main beam frame (3). One end of the balancing cylinder (17) is connected to the connector (14), and the other end extends out and supports the tunnel wall when the precast blocks are installed, thereby ensuring the stability of the main beam frame (3). When the device passes through the curved section of the tunnel, the extension distance of the balancing cylinder (17) can be adjusted to realize the slow rotation of the entire trolley and cope with the turning of the curved section of the tunnel.

[0070] In addition, the radius of the arc of the precast block is determined by the radius of the initial branch tunnel of the tunnel, and the precast block is processed and made outside the tunnel. Its height and width need to ensure that the precast block rotates at the bottom of the main beam frame (3) without interfering with the rock wall, and it needs to have a hanging point (211), a central water ditch, etc.

[0071] Furthermore, this device is equipped with a hydraulic oil pump station that supplies hydraulic oil to the device's cylinders. Those skilled in the art can select the pump station and oil tank models based on the hydraulic flow and pressure required by the entire device to provide hydraulic power to the device.

[0072] Example 2

[0073] This example discloses a method for installing precast blocks for TBM tunnel lining, implemented based on the tunnel bottom precast block installation device described in Example 1, and includes the following steps:

[0074] (1) Remove the front rails in the installation area that affect the installation of precast blocks to ensure that the installation route under the precast blocks is unobstructed. The silt at the bottom of the tunnel in the installation area is transported to the TBM continuous belt and then out of the tunnel by the slag removal mechanism. The silt is manually transported to the primary conveyor belt and then transported to the TBM continuous belt via the secondary conveyor belt and then out of the tunnel to ensure that the installation area is clean and facilitates the installation of precast blocks.

[0075] (2) The precast block transport vehicle transports the precast blocks to be installed to the center track. The hoisting mechanism lifts the precast blocks and the transport vehicle leaves the main beam frame. The transport vehicle passes the rear ramp rail and the turnout platform to the center track. The hoisting mechanism drives the clamp assembly to lift the precast blocks through the roller. At this time, the precast block transport vehicle leaves the center track. Since the rear ramp rail is a double track, it does not affect the material transport. The vehicle changes lanes through the turnout platform.

[0076] (3) The translation cylinder moves the center track to one side of the main beam frame. The hoisting mechanism lowers the precast block and drives the rotating disk through the rotary motor to rotate the precast block to adjust the orientation and installation angle of the precast block and install the precast block to the area to be installed.

[0077] (4) Fill the gaps between the precast blocks after installation with concrete to ensure a tight connection, and lay steel rails on the newly installed precast blocks.

[0078] (5) The entire device is moved forward by driving the hydraulic cylinder to support the precast blocks to carry out the next installation.

[0079] Although some preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0080] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the inventive spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A TBM tunnel lining precast block installation device, characterized in that, The system includes a rear rail for laying on precast blocks, a front rail for laying at the bottom of the area where precast blocks are to be installed, and a main beam frame mounted on the front and rear rails via first traveling wheels. The main beam frame includes support components interconnected by connectors, each support component including support columns interconnected by support beams. A turnout platform connected to the main beam frame is mounted on the rear rail. A central rail connected to the track of the turnout platform is mounted on the connectors. The central rail is connected to a translation cylinder that drives its translation to facilitate the installation of precast blocks. The piston rod of the translation cylinder is connected to a sleeper of the central rail to facilitate the movement of the central rail. The main beam is equipped with a hoisting mechanism for hoisting precast blocks and a drive cylinder for driving the main beam to move on the front and rear rails; the hoisting mechanism includes a hoisting frame that moves along the supporting crossbeam via rollers, a reel mounted on the hoisting frame for winding up a wire rope, a translation motor that drives the rollers to rotate, a rotation motor that drives the reel to rotate to wind up the wire rope, and a clamp assembly mounted on the other end of the wire rope; The clamping assembly includes a clamping body connected to the wire rope, a rotating disk mounted on the bottom of the clamping body, clamps mounted on the rotating disk corresponding to the lifting points of the precast blocks, and a rotary motor that drives the rotating disk to rotate laterally.

2. The TBM tunnel lining precast block installation device according to claim 1, characterized in that, The end of the main beam frame to be installed with the precast block is connected to the rear end of the slag removal mechanism, and the slag removal mechanism is set on the front rail through the second traveling wheel; The slag removal mechanism includes a main frame, support legs that support the main frame, a primary conveyor belt and a secondary conveyor belt installed on the main frame; One end of the primary conveyor belt is close to the bottom of the tunnel, and the other end is positioned above one end of the secondary conveyor belt. This is used to transport excavated soil from the tunnel surface to the secondary conveyor belt. The other end of the secondary conveyor belt is located above the TBM continuous belt, and is used to transport excavated soil onto the TBM continuous belt and then out of the tunnel.

3. The TBM tunnel lining precast block installation device according to claim 2, characterized in that, One of the support columns of each support assembly is mounted on the front rail via the first traveling wheel, and the other support column is mounted on the rear rail via the first traveling wheel.

4. The TBM tunnel lining precast block installation device according to claim 3, characterized in that, The turnout platform is connected to a rear ramp assembly; The rear climbing assembly includes a rear climbing frame with a slope and a rear climbing rail mounted on the rear climbing frame. The bottom of both the turnout platform and the rear climbing frame is equipped with a third traveling wheel corresponding to the rear rail, so that the drive cylinder drives the main beam frame and moves the turnout platform and the rear climbing rail.

5. The TBM tunnel lining precast block installation device according to claim 4, characterized in that, The bottom of the connector extends downward and is provided with a telescopic part. One end of the drive cylinder is fixedly connected to the telescopic part. The other end of the drive cylinder is provided with a pad. The drive cylinder drives the main beam frame to move by supporting the precast block installed on the pad. The lower end of the rear ramp rail is connected to the rear rail, and the upper end is connected to the track of the turnout platform, so as to facilitate the transport trolley to travel to the area where the precast blocks are to be installed by passing through the rear ramp rail and the turnout platform.

6. The TBM tunnel lining precast block installation device according to claim 5, characterized in that, The primary conveyor belt is installed on one side of the main frame via a primary support column, and the secondary conveyor belt is mounted on the main frame via a secondary support column; The main frame is provided with a transport track that is connected to the central track. The front end of the slag removal mechanism is connected to a front climbing component. The front climbing component includes a front climbing frame with a slope and a front climbing track laid on the front climbing frame. The lower end of the front climbing rail is connected to the front steel rail, and the upper end is connected to the transport rail to ensure uninterrupted transport of materials inside the tunnel.

7. The TBM tunnel lining precast block installation device according to claim 3, characterized in that, The connector has balancing cylinders on both sides for balancing the main beam frame. One end of the balancing cylinder is connected to the connector, and the other end extends out and supports the tunnel wall when the precast blocks are installed, thereby ensuring the stability of the main beam frame.

8. A method for constructing a TBM tunnel lining, characterized in that, The installation of the precast TBM tunnel lining block based on claim 1 includes the following steps: (1) Remove the front rails that affect the installation of precast blocks in the area to be installed, and transport the silt at the bottom of the tunnel in the area to be installed to the TBM continuous belt and then out of the tunnel through the slag removal mechanism. (2) The precast block transport vehicle transports the precast blocks to be installed to the central track, the hoisting mechanism lifts the precast blocks, and the transport vehicle drives away from the main beam frame; (3) The translation cylinder moves the center track to one side of the main beam frame, the hoisting mechanism lowers the precast block and adjusts the orientation of the precast block, and installs the precast block to the area where the precast block is to be installed; (4) Fill the gaps between the precast blocks after installation with concrete to ensure a tight connection, and lay steel rails on the newly installed precast blocks; (5) The entire device is moved forward by driving the hydraulic cylinder to support the precast blocks to carry out the next installation.

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