A TBM suitable for inclined shaft construction

Abstract

The utility model relates to tunnel construction technical field, concretely provides a TBM suitable for inclined shaft construction, including a plurality of trolleys walking in tunnel in proper order, ventilation system, laser guiding system and laser guiding passageway system, laser guiding passageway system includes a plurality of openable guiding passageway module installed in a plurality of trolleys in proper order along the heading direction, and the openable guiding passageway module on adjacent trolleys is communicated through flexible pipeline and forms continuous passageway, openable guiding passageway module includes a plurality of openable guiding passageways connected in proper order, and openable guiding passageway includes fixed part and open-close part set in proper order from below to above, laser guiding system includes laser guide instrument, and it sets up in tunnel hole wall, and the laser beam it transmits is from the continuous passageway and goes out, and ventilation system communicates with laser guiding passageway system. The TBM provided by the utility model can realize the clear and stable transmission of laser guiding signal, and provides basic guarantee for the accurate heading of TBM in inclined shaft.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, specifically to a TBM suitable for inclined shaft construction. Background Technology

[0002] The working conditions of inclined shaft construction differ from those of ordinary tunneling in that the slope and narrow space of the inclined shaft result in poor air circulation. At the same time, the direction of dust diffusion is affected by gravity, which reduces the dust removal efficiency of the dust removal system suitable for horizontal tunneling. In addition, due to the slope, excavated soil cannot fall directly downwards but slides between the trolleys and falls to various parts of the tunnel. These factors result in a significantly higher dust concentration during inclined shaft construction than in ordinary tunneling, which seriously affects the normal operation of the laser guidance system.

[0003] Based on the above, this utility model provides a TBM suitable for inclined shaft construction to solve the technical problems existing in the prior art. Utility Model Content

[0004] The purpose of this utility model is to provide a TBM suitable for inclined shaft construction, so as to solve the technical problems existing in the prior art. The specific technical solution is as follows: A TBM suitable for inclined shaft construction includes several vehicles that travel sequentially inside the tunnel, a ventilation system, a laser guidance system, and a laser guidance channel system; The laser-guided channel system includes multiple openable and closable guide channel modules that are sequentially installed on several trolleys along the tunneling direction. The openable and closable guide channel modules on adjacent trolleys are connected by flexible pipes to form a continuous channel. The openable guide channel module includes multiple openable guide channels connected in sequence. Each openable guide channel includes a fixed part and an opening and closing part arranged in sequence from bottom to top. The fixed part is set on the trolley, and the opening and closing part is connected to the fixed part and can be opened or closed relative to the fixed part. The laser guidance system includes a laser guide, which is installed on the tunnel wall and emits a laser beam that exits from the continuous channel. The ventilation system is connected to the laser-guided channel system.

[0005] Furthermore, the fixing part is a rigid metal tube, and the opening and closing part is a flexible tube with a skeleton.

[0006] Furthermore, a mounting bracket is fixed to the outer wall of the metal rigid tube, and the mounting bracket is connected to the trolley by fasteners.

[0007] Furthermore, the fixing part and the opening / closing part are detachably connected by bolts or clips.

[0008] Furthermore, one end of the fixing part is hinged to the opening and closing part, and the other end is connected by a locking assembly.

[0009] Furthermore, the locking assembly is a pin-type latch, a snap-lock, or an electromagnetic lock.

[0010] Furthermore, the cross-sectional shape of the openable guide channel is circular or rectangular.

[0011] Furthermore, each end of the openable guide channel is provided with a connecting flange, and two adjacent sets of openable guide channels are detachably connected through the connecting flanges; a filter screen is provided between the connecting flanges of two adjacent sets of openable guide channels, and the filter screen is provided with through holes for the laser beam to pass through.

[0012] Furthermore, the flexible pipe is a corrugated connecting pipe, and both ends of the corrugated connecting pipe are detachably connected to an openable guide channel via connecting flanges.

[0013] Furthermore, one end of the openable guide channel is provided with an air inlet, which is connected to the air supply duct of the ventilation system.

[0014] Furthermore, the laser beam emitted by the laser guide is located on the central axis of the continuous channel.

[0015] Furthermore, the length of the openable guide channel is not less than the single-step travel distance of the TBM.

[0016] The application of the technical solution of this utility model has the following beneficial effects: (1) This utility model provides a TBM suitable for inclined shaft construction, including a number of trolleys that move sequentially in the tunnel, a ventilation system, a laser guidance system, and a laser guidance channel system; the laser guidance channel system includes multiple openable and closable guidance channel modules that are sequentially installed on the trolleys along the tunneling direction, and the openable and closable guidance channel modules on adjacent trolleys are connected by flexible pipes to form a continuous channel; the openable and closable guidance channel module includes multiple openable and closable guidance channels connected sequentially, and the openable and closable guidance channel includes a fixed part and an opening and closing part arranged sequentially from bottom to top, the fixed part is set on the trolley, and the opening and closing part is connected to the fixed part and can be opened or closed relative to the fixed part; the laser guidance system includes a laser guide instrument, the laser guide instrument is set on the tunnel wall, and the laser beam emitted by the laser guide instrument passes through the continuous channel; the ventilation system is connected to the laser guidance channel system. The TBM provided by this utility model, suitable for inclined shaft construction, establishes a continuous, openable guide channel along the laser beam propagation path through a laser guide channel system. This fundamentally isolates the laser guide system from the high-concentration dust environment generated during inclined shaft excavation, effectively preventing direct obstruction, scattering, and absorption of the laser by high-concentration dust. Furthermore, the ventilation system ventilates the openable or continuous guide channel, reducing the dust concentration within the channel and ensuring clear and stable transmission of the laser guide signal. This provides a fundamental guarantee for the precise excavation of the TBM in inclined shafts.

[0017] (2) In this utility model, the laser-guided channel system includes multiple openable and closable guide channel modules that are sequentially installed on several of the trolleys along the tunneling direction. The openable and closable guide channel module includes multiple openable and closable guide channels connected in sequence. Through modular design, it is easy to mass-produce, quickly replace and flexibly splice and expand according to the tunnel length, thereby improving the system's versatility and engineering adaptability.

[0018] (3) In this utility model, the openable guide channel includes a fixed part and an opening and closing part arranged sequentially from bottom to top. The fixed part is arranged on the trolley, and the opening and closing part is connected to the fixed part and can be opened or closed relative to the fixed part. By setting the fixed part and the opening and closing part, when the trolley moves, the opening and closing part corresponding to the laser guide position can be opened or disassembled to avoid interference between the openable guide channel and the laser guide.

[0019] (4) In this utility model, the fixing part is a metal rigid pipe and the opening and closing part is a flexible pipe with a skeleton. When it is necessary to inspect or clean the inside of the channel, it is only necessary to open or remove the lighter upper part of the flexible pipe. There is no need to operate the heavy overall metal pipe, which greatly reduces the intensity and time of maintenance work. The lower part of the metal rigid pipe provides a stable mounting base and channel body shape, ensuring overall rigidity and straightness. The upper part of the flexible pipe achieves lightweighting while meeting the functional requirements, and optimizes the weight distribution of the overall structure.

[0020] (5) In this utility model, connecting flanges are respectively provided at both ends of the openable guide channel, and two adjacent sets of openable guide channels are detachably connected through the connecting flanges; a filter screen is provided between the connecting flanges of two adjacent sets of openable guide channels, and the filter screen is provided with through holes for the laser beam to pass through. By setting the filter screen, the dust removal effect can be further improved. Without affecting the passage of the laser beam, the filter screen at the connection can effectively intercept most of the larger dust particles that enter with the airflow or diffusion, further reducing the dust concentration in the openable guide channel.

[0021] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0022] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings: Figure 1 This is a schematic diagram showing the corresponding arrangement of the laser-guided channel system and the laser-guided system in this utility model; Figure 2 This is a schematic diagram of a continuous channel structure; Figure 3 This is a schematic diagram of the initial position of the TBM relative to the laser guidance system in this utility model; Figure 4 This is a schematic diagram showing the position of the TBM relative to the laser guidance system after the step change in this utility model; Among them, 1. Openable guide channel, 1.1. Fixing part, 1.2. Opening and closing part, 2. Laser guide, 3. Mounting frame, 4. Flexible pipe. Detailed Implementation

[0023] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back", "lateral", "longitudinal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] Example: This utility model provides a TBM suitable for inclined shaft construction, including several vehicles that travel sequentially inside the tunnel, a ventilation system, a laser guidance system, and a laser guidance channel system; See Figure 1 and Figure 2 The laser-guided channel system includes multiple openable and closable guide channel modules that are sequentially installed on several of the trolleys along the tunneling direction. Preferably, one openable and closable guide channel module is installed on each trolley. The openable and closable guide channel modules on adjacent trolleys are connected by flexible pipes 4 to form a continuous channel. Preferred, see Figure 1 and Figure 2 The openable guide channel module includes multiple openable guide channels 1 connected in sequence. The openable guide channel 1 includes a fixed part 1.1 and an opening and closing part 1.2 arranged in sequence from bottom to top. The fixed part 1.1 is set on the trolley, and the opening and closing part 1.2 is connected to the fixed part 1.1 and can be opened or closed relative to the fixed part 1.1. The laser guidance system includes a laser guide 2, which is mounted on the tunnel wall A via a mounting bracket. The laser beam emitted by the laser guide 2 exits from within the continuous channel. In this embodiment, preferably, the laser beam emitted by the laser guide 2 is located on the central axis of the continuous channel. It should be noted that the position of the laser beam in the continuous channel is not limited to the central axis.

[0027] The ventilation system is connected to the laser-guided channel system and is used to introduce fresh air into the openable or continuous channel. Specifically, one end of the openable guide channel 1 is provided with an air inlet, which is connected to the air supply duct of the ventilation system.

[0028] The TBM provided by this utility model, suitable for inclined shaft construction, establishes a continuous, openable guide channel along the laser beam propagation path through a laser guide channel system. This fundamentally isolates the laser guide system from the high-concentration dust environment generated during inclined shaft excavation, effectively preventing direct obstruction, scattering, and absorption of the laser by high-concentration dust. Furthermore, the ventilation system ventilates the openable or continuous guide channel, reducing the dust concentration within the channel and ensuring clear and stable transmission of the laser guide signal. This provides a fundamental guarantee for the precise excavation of the TBM in inclined shafts.

[0029] Furthermore, each end of the openable guide channel is provided with a connecting flange, and two adjacent sets of openable guide channels 1 are detachably connected through the connecting flanges; a filter screen is provided between the connecting flanges of two adjacent sets of openable guide channels 1, and the filter screen is provided with through holes for the laser beam to pass through. By providing a filter screen, without affecting the passage of the laser beam, the filter screen at the connection can effectively intercept most of the larger dust particles that enter with the airflow or diffusion, further reducing the dust concentration in the openable guide channel 1.

[0030] In this embodiment, preferably, the fixing part 1.1 is a rigid metal tube, and the opening and closing part 1.2 is a flexible tube with a skeleton. A mounting bracket 3 is fixed to the outer wall of the rigid metal tube, and the mounting bracket 3 is connected to the trolley by bolts.

[0031] The rigid metal tube provides a stable mounting base and channel body shape, playing a role in positioning and shaping, ensuring the straightness and basic shape of the channel, thereby preventing the laser guide from failing to illuminate the rear of the TBM. When the trolley moves, to avoid interference between the openable guide channel and the laser guide, the opening / closing part 1.2 can be opened or disassembled. The use of a flexible hose with a skeleton can reduce weight, thereby reducing the amount of disassembly and assembly work and lowering the intensity of operation. In addition, when it is necessary to inspect or clean the internal channel, it is the same; only the lighter opening / closing part 1.2 needs to be opened or removed, without having to operate the heavy integral metal pipe, which greatly reduces the intensity and time of maintenance work.

[0032] In this embodiment, preferably, the fixing part and the opening / closing part can be detachably connected by bolts or buckles; or, one end of the fixing part 1.1 and the opening / closing part 1.2 are hinged together by a hinge, and the other end is connected by a locking assembly.

[0033] More preferably, the locking component is a pin-type latch, a snap-lock, or an electromagnetic lock.

[0034] Furthermore, the cross-sectional shape of the guide channel is circular or rectangular. In this embodiment, preferably, the cross-sectional shape of the guide channel is circular, and the opening / closing part 1.2 and the fixing part 1.1 are two semicircles. This is a preferred solution of the present invention. The openable / closable guide channel is not limited to a combination of semicircles, but can also be a combination of 1 / 4 circle and 3 / 4 circle; it can also be a rectangular channel with a cover plate.

[0035] In this embodiment, the flexible pipe 4 is a corrugated connecting pipe, and both ends of the corrugated connecting pipe 4 are detachably connected to the openable guide channel 1 via connecting flanges. The flexible pipe 4 and its detachable connection allow for a certain relative displacement and angular deflection between the openable guide channel modules on adjacent trolleys, adapting to the positional changes between trolleys when the TBM advances and turns in the inclined shaft, ensuring the continuity and sealing of the channel, and facilitating the quick disassembly of the flexible pipe 4 when the laser guide passes through the connection point to avoid collisions.

[0036] Furthermore, the length of the openable guide channel 1 is not less than the single-step travel distance of the TBM, so as to avoid interference between the laser guide and the openable guide channel 1 during the travel process, which would affect the operation of the laser guide.

[0037] During actual operation, after all equipment systems are installed, the two openable guide channels 1 on one side of the tunnel (closer to the excavation face) are in an open state. The laser guidance instrument 2 is fixed to the tunnel wall and corresponds to the open position of the openable guide channels 1, such as... Figure 3 As shown; at this time, the tunnel ventilation system is in operation, delivering fresh air to the depths of the tunnel through the ventilation system, and a portion of the fresh air is connected to the openable guide channel 1.

[0038] When the TBM advances forward, it moves forward as a whole. After the tunneling machine completes its step change, the openable guide passage 1 will move forward approximately the distance of the openable guide passage 1. At this time, the opening and closing part 1.2 of the next section of the openable guide passage 1 is opened, and the opening and closing part 1.2 of the previous section of the openable guide passage 1 is closed. The equipment position at this time is as follows: Figure 4 As shown. Repeating the above steps will enable laser-guided tunneling.

[0039] When the tunneling machine continues to move forward and the flexible pipe 4 approaches the laser guide instrument 2, removing the flexible pipe 4 will prevent interference with the laser guide instrument 2.

[0040] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A TBM suitable for inclined shaft construction, characterized in that, This includes several vehicles that move sequentially inside the tunnel, a ventilation system, a laser guidance system, and a laser guidance corridor system; The laser-guided channel system includes multiple openable and closable guide channel modules installed sequentially on several trolleys along the tunneling direction. The openable and closable guide channel modules on adjacent trolleys are connected by flexible pipes (4) to form a continuous channel. The openable guide channel module includes multiple openable guide channels (1) connected in sequence. The openable guide channel (1) includes a fixed part (1.1) and an opening and closing part (1.2) arranged in sequence from bottom to top. The fixed part (1.1) is set on the trolley, and the opening and closing part (1.2) is connected to the fixed part (1.1) and can be opened or closed relative to the fixed part (1.1). The laser guidance system includes a laser guide (2), which is installed on the tunnel wall and emits a laser beam that passes through the continuous channel. The ventilation system is connected to the laser-guided channel system.

2. The TBM suitable for inclined shaft construction according to claim 1, characterized in that, The fixing part (1.1) is a rigid metal tube, and the opening and closing part (1.2) is a flexible tube with a skeleton.

3. A TBM suitable for inclined shaft construction according to claim 2, characterized in that, The outer wall of the metal rigid tube is fixed with a mounting bracket (3), which is connected to the trolley by fasteners.

4. A TBM suitable for inclined shaft construction according to claim 1, characterized in that, The fixed part and the opening / closing part are detachably connected by bolts or clips.

5. A TBM suitable for inclined shaft construction according to claim 1, characterized in that, The fixed part (1.1) is hinged to one end of the opening and closing part (1.2), and the other end is connected by a locking assembly.

6. A TBM suitable for inclined shaft construction according to claim 5, characterized in that, The locking assembly is a pin-type latch, a snap-lock, or an electromagnetic lock.

7. A TBM suitable for inclined shaft construction according to claim 1, characterized in that, The cross-sectional shape of the openable guide channel (1) is circular or rectangular.

8. A TBM suitable for inclined shaft construction according to any one of claims 1-7, characterized in that, The two ends of the openable guide channel (1) are respectively provided with connecting flanges, and two adjacent sets of openable guide channels (1) are detachably connected through the connecting flanges; a filter screen is provided between the connecting flanges of two adjacent sets of openable guide channels (1), and the filter screen is provided with through holes for the laser beam to pass through.

9. A TBM suitable for inclined shaft construction according to claim 8, characterized in that, The flexible pipe (4) is a corrugated connecting pipe, and the two ends of the corrugated connecting pipe are detachably connected to the openable guide channel (1) through connecting flanges.

10. A TBM suitable for inclined shaft construction according to any one of claims 1-7, characterized in that, One end of the openable guide channel (1) is provided with an air inlet, which is connected to the air supply duct of the ventilation system.

11. A TBM suitable for inclined shaft construction according to any one of claims 1-7, characterized in that, The laser beam emitted by the laser guide (2) is located on the central axis of the continuous channel.

12. A TBM suitable for inclined shaft construction according to any one of claims 1-7, characterized in that, The length of the openable guide channel (1) is not less than the single-pass change distance of the TBM.

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