TBM auxiliary device and construction method thereof

Abstract

The application provides a TBM auxiliary device and a construction method thereof, and belongs to the technical field of shield machines; the device comprises a walking track, a ring-shaped beam and a ring-shaped sweeper; the walking track is installed on the main beam saddle of the TBM and is used for supporting the ring-shaped beam to move along the tunnel axis on the walking track; the ring-shaped sweeper is movably arranged on the ring-shaped beam and is used for ring-shaped sweeping and spraying dust-settling of the tunnel. The TBM auxiliary device comprises the walking track, the ring-shaped beam and the ring-shaped sweeper, the walking track is arranged to realize displacement in the direction of the tunnel axis, the ring-shaped beam is arranged to drive the ring-shaped sweeper to realize 360-degree ring-shaped sweeping and spraying dust-settling, thereby realizing automatic cleaning of the excavation hole wall, reducing the labor intensity and labor cost, reducing the dust concentration in the environment during the operation of the device and improving the operation environment.

Description

Technical Field

[0001] This invention belongs to the field of tunnel boring machine (TBM) technology and relates to a TBM auxiliary equipment and its construction method. Background Technology

[0002] During the excavation of hard rock tunnels using a TBM, when core sampling is required along the normal direction of the excavated tunnel column, the equipment needs to integrate core sampling equipment to meet the requirements of core sampling at different radial angles and depths. In addition, for stable rock strata areas of the excavated tunnel and after initial support, manual cleaning of the tunnel walls is required. To address the issues of large workload and low efficiency in tunnel wall cleaning, integrating a full-circumference cleaning and spraying device into the equipment can reduce labor costs and operational difficulty, and improve operational efficiency. At the same time, it can also reduce dust in front of the TBM equipment and perform preliminary cleaning of the excavated tunnel in the early stage. Summary of the Invention

[0003] The purpose of this invention is to provide a TBM auxiliary device that integrates a circumferential cleaning device and a coring device into one unit, so as to simultaneously satisfy the functions of coring and circumferential cleaning, and improve the space utilization and integration of the equipment.

[0004] This invention provides a TBM auxiliary device, including a travel track, a ring beam, and a circumferential sweeper;

[0005] The travel track is installed on the main beam saddle of the TBM and is used to support the movement of the ring beam along the tunnel axis on the travel track;

[0006] The circumferential sweeper is movably mounted on the annular beam and is used for circumferential sweeping and dust suppression spraying of the tunnel.

[0007] Furthermore, the walking track includes a track and a support frame;

[0008] The support frame is installed on the main beam saddle, one end of the track is fixedly connected to the main beam saddle, and the other end of the track extends along the tunnel axis and is installed on the support frame.

[0009] Furthermore, the annular beam includes an annular track, a stroke cylinder, and a set of moving wheels;

[0010] One end of the stroke cylinder is hinged to the main beam saddle, and the other end of the stroke cylinder is connected to the circular track.

[0011] The fixed end of the movable wheel set is installed on the circular track, and the driving end of the movable wheel set is movably connected to the track.

[0012] A rack is provided on the outer circumference of the annular track for meshing with the circumferential cleaner and the core-taking mechanism.

[0013] Furthermore, the circumferential sweeper includes a first crawling trolley, a support cylinder, a telescopic support, an aerosol device, and a sweeping roller;

[0014] The first crawler trolley is used to carry a telescopic bracket, an aerosol device, and a cleaning roller to move on a circular track;

[0015] One end of the support cylinder is hinged to the first crawling trolley, and the other end of the support cylinder is hinged to the telescopic support.

[0016] An atomizing device and a cleaning roller are installed on the other end of the telescopic bracket. The atomizing device can atomize and spray cleaning liquid; the cleaning roller is used to wipe and clean the cave wall.

[0017] Furthermore, the first crawling vehicle includes a frame, a drive motor, a pinion, track wheels, and sidewall wheels;

[0018] The frame includes a first vertical section, a horizontal section, and a second vertical section connected in sequence, which are connected in sequence to form an n-shaped structure;

[0019] The fixed end of the drive motor is mounted on the horizontal section, and a small gear is mounted on the drive end of the drive motor. The small gear extends between the first vertical section and the second vertical section and meshes with the rack on the circular track.

[0020] At least one set of track wheels is provided on the corresponding inner surfaces of the first and second vertical sections;

[0021] At least one set of side guard wheels is provided on the outer end face of the first vertical section and the second vertical section. The central axis of the side guard wheel is set perpendicular to the central axis of the track wheel to limit the back-and-forth movement of the frame during the movement of the ring beam, so that the first crawling trolley can run smoothly on the ring beam.

[0022] Furthermore, the telescopic bracket includes an outer sleeve, an intermediate sleeve, a spring, a limiting block, and a protective cover mounting base;

[0023] One end of the outer sleeve is fixedly connected to the horizontal section of the frame, and the other end of the outer sleeve extends upward in the vertical direction;

[0024] One end of the intermediate sleeve is fitted onto the extended end of the outer sleeve, and the other end of the intermediate sleeve extends upward in a vertical direction;

[0025] One end of the protective cover mounting base is installed inside the extended end of the intermediate sleeve, and a hinge seat for hinged connection with the support cylinder is installed on the outer end face of the protective cover mounting base.

[0026] The spring is sleeved on one end of the protective cover mounting base, which is installed inside the intermediate sleeve.

[0027] The limiting block is installed on the protective cover mounting base and is used to limit the spring.

[0028] Both the aerosol device and the cleaning roller are mounted on the protective cover mounting base.

[0029] Furthermore, the TBM auxiliary equipment also includes a coring mechanism;

[0030] The core sampling mechanism is movably mounted on the annular beam and spaced apart from the circumferential sweeper, and is used to perform radial core sampling of the tunnel.

[0031] Furthermore, the coring mechanism includes a second crawler trolley, a swing motor, and a coring drill.

[0032] The second crawler trolley is used to carry the swing motor and the core drill to move circumferentially along the ring beam;

[0033] The fixed end of the swing motor is mounted on the second crawler trolley, and the drive end of the swing motor is connected to the core drilling machine to adjust the radial rock entry angle of the core drilling machine.

[0034] Furthermore, the core drilling rig includes a mounting base, a propulsion beam, a propulsion cylinder, a drilling rig, a drilling rig propulsion cylinder, and a drill bit clamp;

[0035] The mounting base is connected to the drive end of the swing motor and is slidably connected to the push beam;

[0036] One end of the propulsion cylinder is connected to the mounting base, and the other end of the propulsion cylinder is connected to the end of the propulsion beam away from the mounting base, which is used to push the propulsion beam to move vertically relative to the mounting base.

[0037] One end of the drilling rig propulsion cylinder is connected to the drilling rig, and the other end of the drilling rig propulsion cylinder is connected to the propulsion beam, which is used to drive the drilling rig to drill or retract.

[0038] The drill bit clamp is installed on the end of the propulsion beam away from the mounting base and is used to support and clamp the drill bit during the drilling process.

[0039] The present invention also provides a construction method for TBM auxiliary equipment, including circumferential cleaning operation and rock core sampling operation;

[0040] The specific process of circumferential cleaning operation is as follows:

[0041] The circumferential sweeper moves to the designated work area in the tunneling direction using the ring beam;

[0042] The support cylinder drives the cleaning roller to stick to the hole wall, and the protective cover mounting seat compresses the spring, so that the spring is in the initial compression state;

[0043] The drive motor drives the first crawler to make a circumferential motion on the ring beam to clean the hole wall in a circular motion.

[0044] The aerosol devices are arranged on both sides of the drum for spraying and cleaning the tunnel walls;

[0045] The specific process of core sampling in rock formations is as follows:

[0046] The coring mechanism moves to the designated work area along the tunneling direction using the ring beam;

[0047] The second crawler trolley, equipped with a swing motor and a core drill, performs circumferential rotation on the ring beam to reach the designated circumferential core sampling position. The radial rock entry angle of the core drill is adjusted by the swing motor to perform the core sampling operation.

[0048] Compared with the prior art, the present invention has the following beneficial effects:

[0049] (1) The TBM auxiliary equipment provided by the present invention includes a walking track, a ring beam and a circumferential cleaner. By setting the walking track, displacement in the direction of the tunnel axis is realized; by setting the ring beam, the circumferential cleaner is driven to perform 360-degree circumferential cleaning and spraying dust reduction, so as to realize automated cleaning of the excavated tunnel wall, reduce the intensity of manual operation and labor costs; and reduce the concentration of environmental dust during equipment operation, thus improving the working environment.

[0050] (2) In this invention, by setting the circumferential cleaner to an adaptive telescopic sleeve design, the cleaning power of the roller on the hole wall can be improved, while adapting to the operation of irregular hole walls and protecting the mechanical structure.

[0051] (3) The present invention also includes a coring mechanism set on a ring beam to enable multi-degree-of-freedom coring of normal rock strata at different rock depths and circumferential ranges; and by integrating the circumferential cleaner with the coring mechanism, the space utilization and integration of the equipment are improved.

[0052] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0053] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0054] Figure 1 This is a schematic diagram of the overall structure of a TBM auxiliary device according to an embodiment of the present invention;

[0055] Figure 2 yes Figure 1A side view of the interconnection between the central travel track, the ring beam, the circumferential sweeper, and the main beam saddle.

[0056] Figure 3 yes Figure 1 A schematic diagram of the structure of the central traveling track;

[0057] Figure 4 yes Figure 1 Schematic diagram of the structure of the ring beam;

[0058] Figure 5 yes Figure 4 Schematic diagram of the AA section;

[0059] Figure 6 yes Figure 1 Schematic diagram of the central ring sweeper;

[0060] Figure 7 yes Figure 6 A side view diagram;

[0061] Figure 8 yes Figure 6 A schematic diagram of the structure of the first crawler vehicle in China;

[0062] Figure 9 yes Figure 8 A side view diagram;

[0063] Figure 10 yes Figure 8 Schematic diagram of the telescopic support structure;

[0064] Figure 11 yes Figure 10 A side view diagram;

[0065] Figure 12 yes Figure 11 A schematic diagram of the centering mechanism;

[0066] Figure 13 yes Figure 12 A side view diagram;

[0067] Figure 14 yes Figure 12 This is a structural schematic diagram of a core drilling rig;

[0068] Figure 15 yes Figure 14 A side view diagram.

[0069] in:

[0070] 01. Main beam saddle frame;

[0071] 1. Traveling track; 101. Track; 102. Support frame;

[0072] 2. Ring beam, 201. Upper ring track, 202. Stroke cylinder, 203. Moving wheel assembly, 204. Lower ring track;

[0073] 3. Circular sweeper, 301. First crawler trolley, 30101. Frame, 30102. Drive motor, 30103. Pinion, 30104. Track wheel, 30105. Side guard wheel, 302. Bracket cylinder, 303. Telescopic bracket, 30301. Outer sleeve, 30302. Intermediate sleeve, 30303. Spring, 30304. Limit block, 30305. Protective cover mounting base, 304. Aerosol device, 305. Sweeping roller;

[0074] 4. Core-taking mechanism, 401. Second crawling trolley, 402. Swing motor, 403. Core-taking drill, 40301. Mounting base, 40302. Push beam, 40303. Push cylinder, 40304. Drilling rig, 40305. Drilling rig push cylinder, 40306. Chip clamp. Detailed Implementation

[0075] To make the above-mentioned objectives, features, and advantages of the present invention clearer and easier to understand, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the accompanying drawings of the present invention are all in a simplified form and use non-precise proportions, and are only used to facilitate and clearly assist in illustrating the implementation of the present invention; the "several" mentioned in the present invention are not limited to the specific number shown in the examples in the accompanying drawings; the orientations or positional relationships indicated by terms such as "front," "middle," "rear," "left," "right," "up," "down," "top," "bottom," and "center" mentioned in the present invention are all based on the orientations or positional relationships shown in the accompanying drawings of the present invention, and do not indicate or imply that the device or component referred to must have a specific orientation, nor should they be construed as limitations on the present invention.

[0076] Example:

[0077] See Figure 1 and Figure 2 As shown, the present invention provides a TBM auxiliary device for radial core sampling, tunnel dust suppression spraying, and circumferential cleaning of the tunnel after excavation by the shield tunneling equipment; the TBM auxiliary device includes a traveling track 1, a ring beam 2, a circumferential cleaner 3, and a core sampling mechanism 4;

[0078] The traveling track 1 is provided with two sets of symmetrically arranged along the central axis of the ring beam 2. Both sets of traveling tracks 1 are installed on the main beam saddle 01 of the TBM to support the ring beam 2 to move along the tunnel axis on the traveling track 1, so that the ring beam 2 can independently have the ability to cover the working range along the tunnel axis.

[0079] The circumferential sweeper 3 is movably mounted on the annular beam 2 and is used for circumferential sweeping and dust suppression spraying in the tunnel.

[0080] The core sampling mechanism 4 is movably mounted on the annular beam 2 and is used to perform radial core sampling of the tunnel.

[0081] See Figure 3 As shown, a single set of the traveling track 1 includes a track 101 and a support frame 102; the support frame 102 is installed on the main beam saddle 01, one end of the track 101 is fixedly connected to the main beam saddle 01, and the other end of the track 101 extends along the tunnel axis and is installed on the support frame 102.

[0082] See Figure 4 and Figure 5 As shown, the annular beam 2 includes an annular track, a stroke cylinder 202, and a set of moving wheels 203;

[0083] One end of the stroke cylinder 202 is hinged to the main beam saddle 01, and the other end of the stroke cylinder 202 is connected to the circular track.

[0084] The fixed end of the movable wheel set 203 is installed on the circular track, and the driving end of the movable wheel set 203 is movably connected to the track 101.

[0085] The circular track is driven by the stroke cylinder 202 and the movement of the wheel set 203 and the track 101 to achieve displacement along the tunnel axis.

[0086] Preferably, the annular track includes an upper annular track 201 and a lower annular track 202. Both the upper annular track 201 and the lower annular track 202 are configured as semi-circular arc structures, and the upper annular track 201 and the lower annular track 202 are spliced ​​together to form a complete annular track structure.

[0087] More preferably, racks are provided on the outer circumference of the upper annular track 201 and the lower annular track 202 for meshing with the circumferential cleaner 3 and the core-taking mechanism 4.

[0088] See Figures 6 to 11 As shown, the circumferential sweeper 3 includes a first crawling trolley 301, a support cylinder 302, a telescopic support 303, an aerosol device 304, and a sweeping roller 305;

[0089] The first crawler trolley 301 is used to carry the telescopic bracket 303, the aerosol device 304 and the cleaning roller 305 to move on the circular track;

[0090] One end of the support cylinder 302 is hinged to the first crawling trolley 301, and the other end of the support cylinder 302 is hinged to the telescopic support 303.

[0091] The telescopic bracket 303 is equipped with an atomizing device 304 and a cleaning roller 305 at the other end. The atomizing device 304 can atomize and spray cleaning liquid; the cleaning roller 305 is used to wipe and clean the cave wall.

[0092] Preferably, the first crawling trolley 301 includes a frame 30101, a drive motor 30102, a pinion 30103, a track wheel 30104, and a sidewall wheel 30105;

[0093] The frame 30101 includes a first vertical section, a horizontal section, and a second vertical section connected in sequence, which are connected in sequence to form an n-shaped structure;

[0094] The fixed end of the drive motor 30102 is mounted on the horizontal section, and a pinion 30103 is mounted on the drive end of the drive motor 30102. The pinion 30103 extends between the first vertical section and the second vertical section and meshes with the rack on the annular track.

[0095] At least one set of track wheels 30104 are provided on the inner sides corresponding to the first vertical section and the second vertical section;

[0096] At least one set of side guard wheels 30105 are provided on the outer end face of the first vertical section and the second vertical section. The central axis of the side guard wheel 30105 is perpendicular to the central axis of the track wheel 30104. It is used to limit the back-and-forth movement of the frame 30101 during the movement of the ring beam 2, so that the first crawling trolley 301 can run smoothly on the ring beam 2.

[0097] Preferably, one end of the support cylinder 302 is hinged to the horizontal section.

[0098] Preferably, the telescopic bracket 303 includes an outer sleeve 30301, an intermediate sleeve 30302, a spring 30303, a limiting block 30304, and a protective cover mounting base 30305;

[0099] One end of the outer sleeve 30301 is fixedly connected to the horizontal section of the frame 30101, and the other end of the outer sleeve 30301 extends upward in the vertical direction.

[0100] One end of the intermediate sleeve 30302 is fitted with the extended end of the outer sleeve 30301, and the other end of the intermediate sleeve 30302 extends upward in the vertical direction.

[0101] One end of the protective cover mounting base 30305 is installed inside the extension end of the intermediate sleeve 30302, and a hinge seat for hinged connection with the support cylinder 302 is installed on the outer end face of the protective cover mounting base 30305.

[0102] The spring 30303 is sleeved on one end of the protective cover mounting base 30305 and installed inside the intermediate sleeve 30302;

[0103] The limiting block 30304 is installed on the protective cover mounting base 30305 and is used to limit the spring 30303;

[0104] Both the aerosol device 304 and the cleaning roller 305 are mounted on the protective cover mounting base 30305.

[0105] More preferably, the aerosol device 304 has multiple sets arranged side by side.

[0106] More preferably, the sweeping rollers 305 are provided in at least two sets arranged side by side, and the central axis of a single set of sweeping rollers 305 is parallel to the arrangement direction of multiple sets of aerosol devices 304.

[0107] See Figures 12 to 15 As shown, the core-taking mechanism 4 includes a second crawling trolley 401, a swing motor 402, and a core-taking drill 403;

[0108] The second crawler trolley 401 is used to carry the swing motor 402 and the core drill 403 to move circumferentially along the ring beam 2;

[0109] The fixed end of the swing motor 402 is mounted on the second crawler trolley 401, and the drive end of the swing motor 402 is connected to the core drill 403 to adjust the radial rock entry angle of the core drill 403.

[0110] Preferably, the structure and operation mode of the second crawling trolley 401 are the same as those of the first crawling trolley 301;

[0111] Preferably, the swing motor 402 can adjust the radial rock entry angle of the core drilling machine 403 within the range of 0°-180° to adapt to different core angle requirements.

[0112] More preferably, the core drilling rig 403 includes a mounting base 40301, a propulsion beam 40302, a propulsion cylinder 40303, a drilling rig 40304, a drilling rig propulsion cylinder 40305, and a drill bit clamp 40306;

[0113] The mounting base 40301 is connected to the drive end of the swing motor 402 and is slidably connected to the push beam 40302;

[0114] One end of the propulsion cylinder 40303 is connected to the mounting base 40301, and the other end of the propulsion cylinder 40303 is connected to the end of the propulsion beam 40302 away from the mounting base 40301. It is used to push the propulsion beam 40302 to move vertically relative to the mounting base 40301, so as to realize the adjustment of the position of the drill bit clamp on the borehole rock wall and adapt to the operation of different diameter tunnel walls within a certain adjustment range.

[0115] One end of the drilling rig propulsion cylinder 40305 is connected to the drilling rig 40304, and the other end of the drilling rig propulsion cylinder 40305 is connected to the propulsion beam 40302, which is used to drive the drilling rig 40304 to drill or retract.

[0116] The drill bit clamp 40306 is installed on the end of the propulsion beam 40302 away from the mounting base 40301. It is used to support and clamp the drill bit during the drilling process of the drilling rig 40304, thereby achieving stable positioning and rod replacement during the drilling operation and enabling core sampling operations in deeper rock strata.

[0117] Preferably, circumferential sweeping and core sampling can be performed synchronously (or asynchronously). In their respective operating modes, the circumferential sweeper 3 and the core sampling mechanism 4 have a fixed installation distance between their respective crawler trolleys (mounted structures) and drive in the same direction simultaneously, thereby avoiding interference caused by overlapping travel areas when operating in the two modes.

[0118] As a further embodiment of the present invention, the specific process of performing circumferential cleaning operations using the TBM auxiliary equipment described above is as follows:

[0119] After the circumferential sweeper 3 moves to the designated working area in the tunneling (axis) direction based on the ring beam 2, the support cylinder 302 drives the sweeping roller 305 (installed on the telescopic support 303) to stick to the hole, and the protective cover mounting seat 30305 compresses the spring 30303, so that the spring 30303 has a certain initial compression amount. Then the drive motor 30102 drives the first crawling trolley 301 to make circumferential movement on the ring beam 2 to perform circumferential sweeping of the tunnel wall.

[0120] The initial compression of spring 30303 allows the cleaning roller 305 to compress / spring during circumferential cleaning, adapting to irregularly changing hole walls (diameter) and improving cleaning efficiency. It also prevents damage to the equipment caused by large rigid interference during operation. Atomizing devices 304 are arranged on both sides of the roller 305, which can throttle water and air passing through the pipes to spray and clean the hole walls (or switch to atomized water and air mode to suppress dust in the area being cleaned by the roller 305).

[0121] As a further embodiment of the present invention, the specific process of using the TBM auxiliary equipment described above for rock core sampling is as follows:

[0122] The coring mechanism 4 moves to the designated work area in the tunneling (axis) direction by relying on the ring beam 2. Then, the second crawler trolley 401, carrying the swing motor 402 and the coring drill 403, makes a circumferential motion on the ring beam 2 to reach the designated circumferential coring position. The radial rock entry angle of the coring drill 403 can be adjusted by the swing motor 402 to carry out coring operations.

[0123] The core drilling rig 403 uses the drilling rig propulsion cylinder 40305 to extend and retract the propulsion beam 40302, thereby achieving the core drilling operation requirements within a certain range (diameter of the tunnel wall); the drill bit clamp 40306 can support and stabilize the drill bit during the drilling process, thereby achieving stable positioning of the drilling rig during operation to change drill rods and achieve core drilling operations in deeper rock strata.

[0124] As a further embodiment of the present invention, the TBM equipment needs to have two different functional requirements: core sampling of rock strata and circumferential cleaning of the excavated tunnel walls. The specific requirements for each function need to be clarified here:

[0125] Core sampling: Enables core sampling of rock strata within a 240° circumferential range on the upper side of the excavation section, at different entry angles and depths; Circumferential cleaning: Provides cleaning and dust suppression for the tunnel walls covering a 300° circumferential range on the upper side of the excavation section. Since both require circumferential operation, they can be integrated into a single design (shared main structure) with separate mounting structures. This improves space utilization and equipment integration. The structural design and implementation are as follows:

[0126] To achieve a circumferential working range on the cross-section, a circumferential beam is used as the circumferential support and functional equipment mounting device (circumferential) moving track. The circumferential (drive) is achieved by the gear on the mounting device meshing with the gear ring on the ring beam. At the same time, the moving wheel set 203 on the ring beam 2 cooperates with the traveling track 1, so that the ring beam 2 also needs to have a certain range of travel movement in the direction of the tunnel axis, which can improve the overall operational flexibility of the equipment.

[0127] The circumferential cleaning mechanism is mainly equipped with an aerosol device 304 and a cleaning roller 305 to achieve circumferential drive along the ring beam 2, and to adjust the aerosol effect and the cleaning roller's adaptability range during operation to meet different environmental operation requirements.

[0128] The rock strata coring mechanism is mainly equipped with a coring drill 403, which realizes circumferential drive along the ring beam 2. At different circumferential angle positions, the swing motor 402 realizes different radial rock entry angles and different depths for coring operations.

[0129] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A TBM auxiliary device, characterized in that, It includes a walking track (1), a ring beam (2), a circumferential sweeper (3), and a core-taking mechanism (4); The travel track (1) is installed on the main beam saddle (01) of the TBM and is used to support the ring beam (2) to move along the tunnel axis on the travel track (1); The circumferential sweeper (3) is movably mounted on the annular beam (2) and is used for circumferential sweeping and dust suppression of the tunnel; The circumferential sweeper (3) includes a first crawling trolley (301), a support cylinder (302), a telescopic support (303), an aerosol device (304), and a sweeping roller (305). The first crawling trolley (301) is used to carry the telescopic bracket (303), the aerosol device (304) and the cleaning roller (305) to move on the circular track; One end of the support cylinder (302) is hinged to the first crawling trolley (301), and the other end of the support cylinder (302) is hinged to the telescopic support (303); An atomizing device (304) and a cleaning roller (305) are installed on the other end of the telescopic bracket (303). The atomizing device (304) can atomize and spray cleaning liquid; the cleaning roller (305) is used to wipe and clean the cave wall. The core sampling mechanism (4) is movably mounted on the ring beam (2) and spaced apart from the circumferential sweeper (3) for radial core sampling of the tunnel; and the core sampling mechanism (4) includes a second crawler trolley (401), a swing motor (402) and a core drilling rig (403). The second crawler (401) is used to carry the swing motor (402) and the core drill (403) to make circumferential movements along the ring beam (2); The fixed end of the swing motor (402) is mounted on the second crawler trolley (401), and the drive end of the swing motor (402) is connected to the core drill (403) to adjust the radial rock entry angle of the core drill (403).

2. The TBM auxiliary equipment according to claim 1, characterized in that, The walking track (1) includes a track (101) and a support frame (102); The support frame (102) is installed on the main beam saddle (01). One end of the track (101) is fixedly connected to the main beam saddle (01), and the other end of the track (101) extends along the tunnel axis and is installed on the support frame (102).

3. The TBM auxiliary equipment according to claim 1, characterized in that, The ring beam (2) includes a ring track, a stroke cylinder (202), and a set of moving wheels (203). One end of the stroke cylinder (202) is hinged to the main beam saddle (01), and the other end of the stroke cylinder (202) is connected to the circular track; The fixed end of the movable wheel set (203) is installed on the circular track, and the driving end of the movable wheel set (203) is movably connected to the walking track (1). A rack is provided on the outer circumference of the annular track for meshing with the circumferential cleaner (3) and the core-taking mechanism (4).

4. The TBM auxiliary equipment according to any one of claims 1-3, characterized in that, The first crawling trolley (301) includes a frame (30101), a drive motor (30102), a pinion (30103), a track wheel (30104), and a side wheel (30105). The frame (30101) includes a first vertical section, a horizontal section and a second vertical section connected in sequence, which are connected in sequence to form an n-shaped structure; The fixed end of the drive motor (30102) is mounted on the horizontal section, and a pinion (30103) is mounted on the drive end of the drive motor (30102). The pinion (30103) extends between the first vertical section and the second vertical section and meshes with the rack on the circular track. At least one set of track wheels (30104) is provided on the inner side of the first vertical section and the second vertical section respectively. At least one set of side guard wheels (30105) are provided on the outer end face of the first vertical section and the second vertical section. The central axis of the side guard wheel (30105) is perpendicular to the central axis of the track wheel (30104) to limit the back-and-forth movement of the frame (30101) during the movement of the ring beam (2) so that the first crawling trolley (301) can run smoothly on the ring beam (2).

5. The TBM auxiliary equipment according to claim 4, characterized in that, The telescopic bracket (303) includes an outer sleeve (30301), an intermediate sleeve (30302), a spring (30303), a limiting block (30304), and a protective cover mounting base (30305). One end of the outer sleeve (30301) is fixedly connected to the horizontal section of the frame (30101), and the other end of the outer sleeve (30301) extends upward in the vertical direction; One end of the intermediate sleeve (30302) is fitted together with the extended end of the outer sleeve (30301), and the other end of the intermediate sleeve (30302) extends upward in the vertical direction; One end of the protective cover mounting base (30305) is installed inside the extension end of the intermediate sleeve (30302), and a hinge seat for hinged to the support cylinder (302) is installed on the outer end face of the protective cover mounting base (30305). The spring (30303) is sleeved on one end of the protective cover mounting base (30305) and installed inside the intermediate sleeve (30302); The limiting block (30304) is installed on the protective cover mounting base (30305) and is used to limit the spring (30303); The aerosol device (304) and the sweeping roller (305) are both mounted on the protective cover mounting base (30305).

6. The TBM auxiliary equipment according to claim 5, characterized in that, The core drilling rig (403) includes a mounting base (40301), a propulsion beam (40302), a propulsion cylinder (40303), a drilling rig (40304), a drilling rig propulsion cylinder (40305), and a drill bit clamp (40306). The mounting base (40301) is connected to the drive end of the swing motor (402) and is slidably connected to the push beam (40302); One end of the propulsion cylinder (40303) is connected to the mounting base (40301), and the other end of the propulsion cylinder (40303) is connected to the end of the propulsion beam (40302) away from the mounting base (40301), which is used to push the propulsion beam (40302) to move vertically relative to the mounting base (40301); One end of the drilling rig propulsion cylinder (40305) is connected to the drilling rig (40304), and the other end of the drilling rig propulsion cylinder (40305) is connected to the propulsion beam (40302), which is used to drive the drilling rig (40304) to drill or retract; The drill bit clamp (40306) is installed on the end of the propulsion beam (40302) away from the mounting base (40301) and is used to support and clamp the drill bit during the drilling process of the drilling rig (40304).

7. A construction method for TBM auxiliary equipment, characterized in that, This includes using the TBM auxiliary equipment as described in claim 6 for circumferential cleaning operations and rock core sampling operations; The specific process of circumferential cleaning operation is as follows: The circumferential sweeper (3) moves to the designated work area in the tunneling direction, relying on the ring beam (2); The support cylinder (302) drives the cleaning roller (305) to stick to the hole wall, and the protective cover mounting seat (30305) compresses the spring (30303), so that the spring (30303) is in the initial compression state; The drive motor (30102) drives the first crawler (301) to make a circumferential motion on the ring beam (2) to clean the hole wall in a circular motion; The aerosol device (304) is arranged on both sides of the cleaning drum (305) for spraying and cleaning the tunnel wall; The specific process of core sampling in rock formations is as follows: The coring mechanism (4) moves to the designated work area in the tunneling direction, relying on the ring beam (2); The second crawler (401) is equipped with a swing motor (402) and a core drill (403) to perform circumferential rotation on the ring beam (2) to reach the designated circumferential core position, and the radial rock entry angle of the core drill (403) is adjusted by the swing motor (402) to perform core operation.

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