Tunnel door closing type collapse rapid curve rescue heading machine

Abstract

The invention relates to the technical field of tunnel engineering, in particular to a tunnel door closing type collapse rapid curve rescue heading machine. According to the rapid curve rescue heading machine for the door-closing type collapse of the tunnel, a curve rescue channel can be formed from the side of the tunnel or the lower portion of an inverted arch to bypass a collapse body and reach a person trapped area, obstruction of the collapse body to heading of the rescue channel is effectively reduced, and rapid and safe rescue of the door-closing type collapse of the tunnel is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel engineering, and more particularly to a tunnel door-closing type landslide rapid curve rescue tunneling machine. Background Art

[0002] The scale of tunnel construction in my country is huge, and tunnel collapses occur from time to time. The so-called tunnel collapse refers to the situation where the construction workers are working on the tunnel face and the partially constructed tunnel behind them collapses, trapping the construction workers in front of them and making them unable to leave the dangerous area. This situation usually occurs when the secondary lining is not built in time and the primary lining in the collapsed area does not have enough support. When a tunnel collapse occurs, the construction workers are trapped in a small dangerous area, and the rapid rescue of the trapped people becomes a top priority.

[0003] At present, the rescue method for closed-door tunnel collapse is mostly to use mechanical devices to directly excavate the collapsed body. However, since the collapsed body of the tunnel is an accumulation body and is extremely unstable, it is easy to disturb it during the excavation process, which may cause secondary collapse, endangering the safety of trapped and rescue personnel. In addition, tunnel collapses often occur in areas with weak and broken surrounding rocks. In such areas, the arch and side walls of the tunnel are often supported by steel frames and anchor rods. After the collapse occurs, the arch and anchor rods are buried inside the collapsed body, which greatly hinders the normal excavation of the rescue equipment and delays the rescue time. Forced excavation will cause a large disturbance to the collapsed body and may cause secondary collapse of the tunnel. Summary of the invention

[0004] The purpose of the present invention is to provide a fast curved rescue tunnel boring machine for tunnel door-closed collapse, which can build a curved rescue channel from the side of the tunnel or under the invert arch to bypass the collapse body and reach the area where people are trapped, effectively reducing the obstruction of the collapse body to the excavation of the rescue channel, and realizing fast and safe rescue of tunnel door-closed collapse.

[0005] In order to achieve these purposes and other advantages according to the present invention, a tunnel door-closed type landslide fast curve rescue tunnel boring machine is provided, comprising:

[0006] The shield body comprises a front shield and a rear shield, wherein the front shield and the rear shield are hinged, and a direction adjustment mechanism for adjusting the connection angle is provided between the two;

[0007] A knife disc, which is arranged at the front end of the front shield;

[0008] A pipe segment component, comprising a first pipe segment, a front end of which is hinged to the tail shield;

[0009] A propulsion system connected to the rear end of the first pipe segment;

[0010] A slag discharge system, comprising a slag conveying device disposed in the front shield, wherein a feed end of the slag conveying device is connected to a discharge end of the cutter disc;

[0011] A personnel passage is formed between the shield body and the pipe segment component, and a hatch is provided on the tail shield or the pipe segment component.

[0012] The beneficial effects of the present invention are:

[0013] In the fast curve rescue tunnel boring machine of the present invention, the propulsion system is used as a power source to push the first pipe section and the shield body forward, and the cutterhead at the front end of the shield body can achieve rapid excavation under variable formation conditions. The shield body can play a temporary support for the rescue channel and withstand the cutterhead rock-breaking reaction force and cutterhead anti-torque generated by the cutterhead excavation. At the same time, the shield body adopts a front shield and a rear shield hinged mode, and the connection between the front shield and the rear shield is hinged and sealed to ensure that the slag and the like in the rock formation do not enter the rescue tunnel boring machine, and can withstand a certain water pressure. The connection angle between the front shield and the rear shield is adjusted by the direction adjustment mechanism to adjust the direction of the cutterhead at the front end of the front shield and change the excavation direction of the cutterhead. When the moving trajectory of the rescue tunnel boring machine is a curve, the rescue channel dug by the rescue tunnel boring machine is also curved. At this time, the shield body and the first pipe section are hinged, and the connection angle between the two changes with the actual situation of the rescue tunnel, ensuring that the first pipe section moves smoothly in the rescue channel. A personnel passage is formed between the shield body and the pipe joint component, and a hatch is provided on the tail shield or the pipe joint component. When the rescue tunneling machine is excavating, the personnel passage is closed by the hatch; after the rescue tunneling machine reaches the area where the personnel are trapped and the rescue passage is exposed to the surface, the rescue hatch is opened to achieve the connection between the personnel passage and the rescue passage, and the trapped construction personnel can enter the personnel passage and leave the tunnel through the personnel passage. At the same time, the present invention sets a slag conveying device in the front shield, connects the feeding end of the slag conveying device with the discharging end of the cutter disc, and timely transports the rock and soil broken by the cutter disc during excavation to the rear end through the slag conveying device to ensure the normal operation of the cutter disc.

[0014] On the basis of the above technical solution, the present invention can also be improved as follows:

[0015] Furthermore, in the tunnel closing type landslide rapid curve rescue tunneling machine, the cutterhead is provided with a roller cutter and a scraper.

[0016] The beneficial effect of adopting the above further scheme is: in this further scheme, the cutter disc is provided with a roller cutter and a scraper, and the efficient cutting ability and wear resistance of the roller cutter are utilized for excavation, and the scraper is used to clean the excavated soil on the periphery, thereby preventing direct wear of the outer edge of the cutter disc and ensuring the accuracy of the excavation diameter.

[0017] Furthermore, in the tunnel door-closed type landslide rapid curve rescue tunneling machine, the steering mechanism includes a plurality of steering cylinders, and both ends of the steering cylinders are respectively hinged to the front shield and the rear shield.

[0018] The beneficial effect of adopting the above further scheme is: in this further scheme, multiple groups of directional adjustment cylinders are evenly distributed along the circumferential direction of the front shield or the tail shield. By adjusting the stroke and pressure of each directional adjustment cylinder, the multiple groups of directional adjustment cylinders cooperate with each other to adjust the connection angle between the front shield and the tail shield, thereby achieving the purpose of adjusting the equipment posture and controlling the excavation direction.

[0019] Furthermore, in the tunnel door closing type landslide rapid curve rescue tunnel boring machine, the pipe segment component also includes:

[0020] At least one second pipe segment. When the second pipe segment is provided in plurality, the plurality of second pipe segments are hingedly connected head to tail, and the front end of the second pipe segment located at the frontmost end is hingedly connected to the rear end of the first pipe segment, and the rear end of the second pipe segment located at the rearmost end is connected to the propulsion system.

[0021] The beneficial effect of adopting the above further scheme is: in this further scheme, the length of a single first pipe section can only meet the excavation of a shorter rescue channel. In order to meet the excavation of a longer rescue channel, at least one second pipe section is set at the rear end of the first pipe section according to actual needs, and the length of the pipe section component is further extended. Multiple second pipe sections are arranged in sequence along the length direction of the rescue tunneling machine and are hinged end to end. The front end of the second pipe section at the front end is hinged to the rear end of the first pipe section, and the rear end of the second pipe section at the rear end is connected to the propulsion system. In this way, the second pipe section at the rear end can be pushed by the propulsion system to push the shield and the pipe section component forward. At this time, the connection angle between the second pipe section and the adjacent first pipe section or second pipe section changes with the actual situation of the rescue tunnel, ensuring that the rescue tunneling machine can move forward smoothly in the rescue channel. Similarly, the connection between the second pipe section and the adjacent first pipe section or second pipe section is hinged and sealed to ensure that slag and stone in the rock formation do not enter the rescue tunneling machine and can withstand a certain water pressure.

[0022] Furthermore, in the tunnel door-closed type landslide rapid curve rescue tunneling machine, the second pipe segment is connected to the adjacent first pipe segment or the second pipe segment via a spherical ring steering structure.

[0023] The beneficial effect of adopting the above further scheme is: in this further scheme, the spherical ring steering structure is a pipe connection structure commonly used in the shield machine field, which ensures the hinge between the pipe segments and the seal between the two. The pipe connection structure specifically includes a rotatably connected outer spherical connection ring and an inner spherical connection ring, the outer spherical connection ring is arranged at the rear end of the front pipe segment, and the inner spherical connection ring is arranged at the front end of the rear pipe segment.

[0024] Furthermore, in the tunnel closing-door type landslide rapid curve rescue tunneling machine, the slag discharge system also includes a slag conveying device, and the slag conveying device is arranged in the tail shield and the pipe segment component to convey the rock and soil output by the slag conveying device backwards.

[0025] The beneficial effect of adopting the above-mentioned further scheme is: in this further scheme, if the rock and soil output by the slag conveying device are all placed in the tail shield, a large amount of rock and soil will be accumulated in the tail shield, affecting the normal operation of the rescue tunneling machine. The rescue tunneling machine needs to stop to clear the slag before tunneling, so a slag conveying device is set up. When the rescue tunneling machine tunnels forward, the slag is transported by the slag conveying device, and the rock and soil output by the slag conveying device in the tail shield is transported backward, thereby avoiding the accumulation of rock and soil in the tail shield, and the rescue tunneling machine does not need to stop to clear the slag.

[0026] Furthermore, in the tunnel door closing type landslide rapid curve rescue tunneling machine, the slag conveying device comprises:

[0027] A chain track, the front end of which extends to the discharging end of the slag conveying device, and the rear end of which extends into the pipe segment component and is flexibly connected to the tail shield and the top wall of the pipe segment component respectively;

[0028] A track crane slidably disposed on the chain track;

[0029] The slag bag is detachably connected to the track crane, and the track crane can drive the slag bag to move to the discharge end of the slag conveying device.

[0030] The beneficial effect of adopting the above further scheme is: in this further scheme, since the tail shield and the pipe segment component are hinged and not suitable for rigid tracks, a chain track is flexibly connected on the top wall of the tail shield and the pipe segment component, and the chain track is flexible and can adapt to the rotation between the tail shield and the pipe segment component. The track crane moves forward and backward on the chain track, and a hook is set at its lower end. The slag bag filled with slag at the discharge end of the slag conveying device is hung on the hook, and the slag bag below it is driven by the track crane to move backward to the pipe segment component, and an empty slag bag is replaced at the discharge end of the slag conveying device, thereby ensuring that the slag bag at the discharge end of the slag conveying device is always collecting slag, so that the rescue tunneling machine does not need to stop for slag cleaning.

[0031] Furthermore, in the tunnel door-closed collapse rapid curve rescue tunnel boring machine, the chain track is spliced ​​from a plurality of sub-tracks, and the sub-tracks are provided in the tail shield, the first pipe section and the second pipe section.

[0032] The beneficial effect of adopting the above further scheme is: in this further scheme, adjacent sub-tracks are connected by track transition blocks, so that multiple sub-tracks are spliced ​​into a long chain track, so that after adding a new second pipe section, the sub-track in the new second pipe section is connected to the chain track in the front pipe section, so that the track crane can be moved to the rearmost second pipe section.

[0033] Furthermore, in the tunnel door-closed type landslide rapid curve rescue tunneling machine, the chain track is connected to the tail shield and the top wall of the pipe segment component through a plurality of flexible chain hangers.

[0034] The beneficial effect of adopting the above further scheme is: in this further scheme, the chain track is flexibly connected to the tail shield and the top wall of the pipe segment component through multiple flexible chain hangers. When the chain track is deformed, the stability of the chain track is ensured by the buffering of the flexible chain hangers.

[0035] Furthermore, in the tunnel door closing type landslide fast curve rescue tunnel boring machine, the propulsion system comprises:

[0036] Support frame;

[0037] A propulsion cylinder, which is arranged on the support frame;

[0038] A top ring is connected to the telescopic rod of the propulsion cylinder.

[0039] The beneficial effect of adopting the above further scheme is: in this further scheme, the propulsion system adopts a structure similar to that of the pipe jacking machine, the front end of the top ring is connected to the last pipe segment, and the shield body and the pipe segment components are moved forward by the propulsion cylinder. Then the propulsion cylinder drives the top ring to reset, and the second pipe segment is added between the top ring and the last pipe segment. After the connection of the second pipe segment is completed, the shield body and the pipe segment components are pushed forward again by the propulsion cylinder.

[0040] Furthermore, the tunnel-door-closed-type landslide rapid curve rescue tunneling machine also includes a swing arm crane, and the swing arm crane is arranged on the propulsion system.

[0041] The beneficial effect of adopting the above further scheme is: in this further scheme, in order to facilitate moving the second pipe section between the top ring and the last pipe section, a swing arm crane is set up, and the swing arm crane is installed between the top ring and the support frame. The second pipe section is lifted and installed between the top ring and the last pipe section by the swing arm crane.

[0042] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1It is a structural schematic diagram of the rapid curve rescue tunnel boring machine of the present invention;

[0044] Figure 2 It is a structural schematic diagram of the cutter disc of the present invention;

[0045] Figure 3 It is a structural schematic diagram of the direction adjustment mechanism of the present invention;

[0046] Figure 4 It is a structural schematic diagram of the slag discharge system of the present invention;

[0047] Figure 5 It is a structural schematic diagram of the spherical ring steering structure of the present invention;

[0048] Figure 6 It is a structural schematic diagram of the personnel passage of the present invention;

[0049] Wherein, the reference numerals represent:

[0050] Cutter disc 1; shield body 2; front shield 2-1; tail shield 2-2; steering cylinder 3; slag conveying device 4-1; slag bag 4-2; track crane 4-3; chain track 4-4; flexible chain 4-5; pipe segment component 5; first pipe segment 5-1; second pipe segment 5-2; top ring 6-1; propulsion cylinder 6-2; support frame 6-3; swing arm crane 7; hatch 8. DETAILED DESCRIPTION

[0051] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0052] It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0053] like Figure 1-Figure 6 As shown, an embodiment of the present invention provides a tunnel door closing type landslide fast curve rescue tunnel boring machine, comprising:

[0054] The shield body 2 includes a front shield 2-1 and a rear shield 2-2, wherein the front shield 2-1 and the rear shield 2-2 are hinged, and a direction adjustment mechanism for adjusting the connection angle is provided between the two; a plurality of direction adjustment cylinders 3, wherein the two ends of the direction adjustment cylinders 3 are respectively hinged to the front shield 2-1 and the rear shield 2-2;

[0055] The cutterhead 1 is arranged at the front end of the front shield 2-1; the cutterhead 1 adopts a composite cutterhead 1 design, including a roller cutter and a scraper, which can achieve rapid excavation under variable formation conditions of 0-50MPa. The excavation diameter is 1.2m, which can meet the size requirements of personnel passage, slag discharge, maintenance, etc. and reduce the disturbance of the collapse, so as to achieve rapid excavation of the rescue channel;

[0056] The pipe segment component 5 is installed between the tail of the shield and the propulsion system. It is the force transmission structure of the propulsion system and provides support for the rescue channel. The pipe segment is a cylindrical structure to meet the construction requirements of rescue channels with different turning radii. The pipe segment component 5 includes a first pipe segment 5-1 and at least one second pipe segment 5-2. The front end of the first pipe segment 5-1 is hinged to the tail shield 2-2; at least one second pipe segment 5-2. When the second pipe segment 5-2 is provided in multiple pieces, the multiple second pipe segments 5-2 are in a state of being hingedly connected end to end, and the front end of the second pipe segment 5-2 located at the front end is hinged to the rear end of the first pipe segment 5-1, and the rear end of the second pipe segment 5-2 located at the rear end is connected to the propulsion system;

[0057] The propulsion system is connected to the rear end of the first pipe segment 5-1. The propulsion system is located at the rear end of the curve rescue machine and includes a top ring 6-1, a cylinder and a support frame 6-3. The top ring 6-1 and the cylinder are installed on the support frame 6-3. The front end of the top ring 6-1 is the pipe segment component 5. The thrust generated by the excavation cylinder acts on the pipe segment component 5 through the top ring 6-1, and is transmitted to the cutter head 1 through the pipe segment component 5 and the shield body 2, pushing the cutter head 1 to excavate forward.

[0058] A slag discharge system, comprising a slag conveying device 4-1 disposed in the front shield 2-1, wherein a feed end of the slag conveying device 4-1 is connected to a discharge end of the cutter head 1;

[0059] A personnel passage is formed between the shield body 2 and the pipe joint component 5, and a hatch 8 is provided on the tail shield 2-2 or the pipe joint component 5;

[0060] The steering mechanism comprises a plurality of steering cylinders 3, and two ends of the steering cylinders 3 are respectively hinged to the front shield 2-1 and the rear shield 2-2.

[0061] In this embodiment, when the rescue tunnel boring machine is working, the rear end of the tail shield 2-2 is not connected to the first pipe section 5-1 in the initial state, and the connection angle between the front shield 2-1 and the tail shield 2-2 is adjusted by multiple sets of directional cylinders 3 to adjust the direction of the cutter head 1 at the front end of the front shield 2-1, thereby changing the excavation direction of the cutter head 1. Then the shield body 2 is pushed forward by the propulsion system, and the rock rescue channel is excavated in full section by the cutter head 1 at the front end of the shield body 2 during the movement. The propulsion system is reset after a single push, and the first pipe section 5-1 is placed behind the tail shield 2-2 and connected to it. The propulsion system then pushes the first pipe section 5-1 forward, and so on, and the installation of the second pipe section 5-2 is completed one by one. During the pushing process, the cutter head 1 at the front end of the shield body 2 excavates the rock rescue channel. When the rescue tunneling machine is excavating, the personnel passage is closed by the hatch 8; after the rescue tunneling machine reaches the area where the personnel are trapped and the rescue passage is exposed to the surface, the rescue hatch 8 is opened to connect the personnel passage and the rescue passage. At this time, the trapped construction workers can enter the personnel passage and leave the tunnel through the personnel passage.

[0062] Preferably, as another embodiment of the present invention, the second pipe segment 5-2 is connected to the adjacent first pipe segment 5-1 or the second pipe segment 5-2 via a spherical ring steering structure.

[0063] In this embodiment, the spherical ring steering structure is a commonly used pipeline connection structure in the shield machine field, which ensures the hinge between the pipe segments and the seal between the two. The pipeline connection structure specifically includes a rotatably connected outer spherical connection ring and an inner spherical connection ring, the outer spherical connection ring is arranged at the rear end of the front pipe segment, and the inner spherical connection ring is arranged at the front end of the rear pipe segment.

[0064] Preferably, as another embodiment of the present invention, the slag discharge system further includes a slag conveying device, and the slag conveying device includes:

[0065] A chain track 4-4, the front end of which extends to the discharge end of the slag conveying device 4-1, and the rear end of which extends into the pipe segment component 5, and is flexibly connected to the tail shield 2-2 and the top wall of the pipe segment component 5 respectively; the chain track 4-4 is spliced ​​by a plurality of sub-tracks, and the tail shield 2-2, the first pipe segment 5-1 and the second pipe segment 5-2 are all provided with the sub-tracks; the chain track 4-4 is connected to the tail shield 2-2 and the top wall of the pipe segment component 5 through a plurality of flexible chains 4-5;

[0066] A track crane 4-3, which is slidably arranged on the chain track 4-4;

[0067] The slag bag 4-2 is detachably connected to the track crane 4-3, and the track crane 4-3 can drive the slag bag 4-2 to move to the discharge end of the slag conveying device 4-1.

[0068] In this embodiment, the slag conveying device 4-1 adopts an axial screw conveyor, which is installed in the central area of ​​the front shield 2-1 and supported by a bracket to transport the rock and soil crushed by the cutter head 1 during excavation to the rear end to the slag bag 4-2. The slag bag 4-2 is set at the rear end of the axial screw conveyor and is suspended on the chain track 4-4 by a track crane 4-3 to transport the slag. The chain track 4-4 is suspended on the top of the rear shield and the pipe section through a flexible chain 4-5, and the chain track 4-4 between adjacent pipe sections is connected by a track transition block. The above-mentioned chain track 4-4 design enables the slag bag 4-2 to achieve rapid slag discharge on the track crane 4-3 when the slope is large and the pipe section turns and twists.

[0069] Preferably, as another embodiment of the present invention, the propulsion system comprises:

[0070] Support frame 6-3;

[0071] A propulsion cylinder 6-2, which is arranged on the support frame 6-3;

[0072] The top ring 6-1 is connected to the telescopic rod of the propulsion cylinder 6-2.

[0073] In this embodiment,

[0074] The back plate of the support frame 6-3 is close to the foundation pit wall, and the foundation pit wall provides the propulsion reaction force; when there is no foundation pit to start, the support frame 6-3 needs to be anchored on the tunnel floor, and the floor needs to be reinforced.

[0075] Preferably, as another embodiment of the present invention, it further comprises a swing arm crane 7, and the swing arm crane 7 is arranged on the propulsion system.

[0076] In this embodiment, after the propulsion system pushes the rescue tunneling machine into the previous ring pipe segment, the swing arm crane 7 is used to lift the next ring pipe segment to the front end of the top ring 6-1, which can effectively improve the rescue tunneling efficiency.

[0077] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the embodiments shown and described herein.

Claims

1. A tunnel door closing type landslide fast curve rescue tunnel boring machine, characterized in that: include: The shield body comprises a front shield and a rear shield, wherein the front shield and the rear shield are hinged, and a direction adjustment mechanism for adjusting the connection angle is provided between the two; A knife disc, which is arranged at the front end of the front shield; A pipe segment component, comprising a first pipe segment, a front end of which is hinged to the tail shield; A propulsion system connected to the rear end of the first pipe segment; A slag discharge system, comprising a slag conveying device disposed in the front shield, wherein a feed end of the slag conveying device is connected to a discharge end of the cutter disc; A personnel passage is formed between the shield body and the pipe segment component, and a hatch is provided on the tail shield or the pipe segment component.

2. A tunnel door-closed collapse fast curve rescue tunnel boring machine as claimed in claim 1, characterized in that: The cutter disc is provided with a rolling cutter and a scraper.

3. A tunnel door-closed collapse rapid curve rescue tunnel boring machine as claimed in claim 1, characterized in that: The direction adjustment mechanism comprises a plurality of direction adjustment oil cylinders, and two ends of the direction adjustment oil cylinders are respectively hinged to the front shield and the rear shield.

4. A tunnel door-closed collapse rapid curve rescue tunnel boring machine as claimed in claim 1, characterized in that: The pipe joint component also includes: At least one second pipe segment. When the second pipe segment is provided in plurality, the plurality of second pipe segments are hingedly connected head to tail, and the front end of the second pipe segment located at the frontmost end is hingedly connected to the rear end of the first pipe segment, and the rear end of the second pipe segment located at the rearmost end is connected to the propulsion system.

5. A tunnel door-closed collapse rapid curve rescue tunnel boring machine as claimed in claim 4, characterized in that: The second pipe section is connected to the adjacent first pipe section or the second pipe section via a spherical ring steering structure.

6. A tunnel door-closed collapse rapid curve rescue tunnel boring machine as claimed in claim 4, characterized in that: The slag discharge system further comprises a slag conveying device, and the slag conveying device comprises: A chain track, the front end of which extends to the discharging end of the slag conveying device, and the rear end of which extends into the pipe segment component and is flexibly connected to the tail shield and the top wall of the pipe segment component respectively; A track crane slidably disposed on the chain track; The slag bag is detachably connected to the track crane, and the track crane can drive the slag bag to move to the discharge end of the slag conveying device.

7. A tunnel door-closed landslide rapid curve rescue tunnel boring machine as claimed in claim 6, characterized in that: The chain track is formed by splicing a plurality of sub-tracks, and the sub-tracks are arranged in the tail shield, the first pipe section and the second pipe section.

8. A tunnel door-closed landslide rapid curve rescue tunnel boring machine as claimed in claim 7, characterized in that: The chain track is connected to the tail shield and the top wall of the pipe segment component through a plurality of flexible chain hangers.

9. The tunnel door closing type landslide rapid curve rescue tunnel boring machine as claimed in claim 1, characterized in that: The propulsion system comprises: Support frame; A propulsion cylinder, which is arranged on the support frame; A top ring is connected to the telescopic rod of the propulsion cylinder.

10. A tunnel door-closed collapse fast curve rescue tunnel boring machine as claimed in any one of claims 1 to 9, characterized in that: Also included is a swing arm crane, which is disposed on the propulsion system.

Images