A tunnel heading support operation trolley suitable for a double side wall heading method

Abstract

This utility model discloses a tunnel pilot tunnel support trolley suitable for the double-sidewall pilot tunnel method, including a frame, a traveling mechanism, a support frame, fasteners, two tilting working platforms, and two fixing chains. The traveling mechanism is located at the bottom of the frame. The two tilting working platforms are respectively located on both sides of the inside of the frame. One side of each tilting working platform is hinged to the frame, allowing the tilting working platform to rotate relative to the frame, and the other side is connected to the frame via a corresponding fixing chain. When the tilting working platform is perpendicular to the side wall of the frame, the fixing chains are straightened at an angle, and the support frame is detachably installed below the tilting working platform. When the tilting working platform is in contact with the side wall of the frame, the fasteners lock and fix the tilting working platform to the side wall of the frame. This support working trolley solves the problems of concrete falling from above and splashing back from below when construction workers are working, and reduces the limitations of operating space and operating angle.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a tunnel guide tunnel support operation trolley suitable for the double-side-wall guide tunnel method. Background Technology

[0002] The "double-sided pilot tunnel method" is a construction method mainly used for the excavation of large-section tunnels or underground caverns in weak surrounding rock (such as soil, strongly weathered rock layers, and fractured zones). Its core idea is "breaking down the large into smaller sections, forming a ring step by step, and sealing in a timely manner." This involves dividing the large cross-section into several small pilot tunnels for excavation in stages, and immediately constructing initial support (usually steel arches and shotcrete) after the excavation of each pilot tunnel. The temporary support formed by the side-wall pilot tunnels is used to stabilize the core soil, and finally, after forming a complete support structure, the core soil is excavated.

[0003] The most significant feature of this method is that it utilizes the pre-excavated pilot tunnels on both sides and their supporting structures (i.e., "double side walls") as temporary supports for the entire excavation face, which significantly improves the safety during construction. Utility Model Content

[0004] To enrich the product range of tunnel support work trolleys and improve construction efficiency, this utility model embodiment provides a tunnel guide tunnel support work trolley suitable for the double-side-wall guide tunnel method.

[0005] This utility model embodiment provides a tunnel pilot tunnel support operation trolley suitable for the double-side wall pilot tunnel method, including a frame, a traveling mechanism, a support frame, fasteners, two tilting operation platforms and two fixed chains;

[0006] The walking mechanism is located at the bottom of the vehicle frame;

[0007] The two tilting operation platforms are respectively located on both sides of the interior of the vehicle frame;

[0008] One side of each of the aforementioned tilting work platforms is hinged to the vehicle frame so that the tilting work platform can rotate relative to the vehicle frame, and the other side is connected to the vehicle frame through a corresponding fixed chain;

[0009] With the tilting work platform perpendicular to the side wall of the vehicle frame, the fixing chain is pulled straight at an angle, and the support frame is detachably installed below the tilting work platform;

[0010] With the tilting platform in contact with the side wall of the vehicle frame, the fasteners lock and fix the tilting platform to the side wall of the vehicle frame.

[0011] A top operating platform is provided on the top of the vehicle frame.

[0012] In one or more alternative embodiments, the frame includes an inner structural frame and an outer structural frame of the same shape;

[0013] Several connecting rods are welded between the inner structural frame and the outer structural frame;

[0014] The inner structural frame includes a first trapezoidal structural segment and a first rectangular main body segment connected vertically.

[0015] The outer structural frame includes a second trapezoidal structural segment and a second rectangular main body segment connected vertically.

[0016] The cross-sections of the first trapezoidal structural segment and the second trapezoidal structural segment are trapezoidal and tend to converge upwards;

[0017] The top operating platform is fixed to the top of the second trapezoidal structural segment, and the width of the top operating platform is the same as the top width of the second trapezoidal structural segment.

[0018] In one or more alternative embodiments, the tunnel pilot tunnel support trolley suitable for the double-side-wall pilot tunnel method further includes an articulated structure.

[0019] The hinge structure connects the flipping work platform and the first rectangular main body segment respectively.

[0020] In one or more alternative embodiments, the walking mechanism includes a tracked chassis respectively disposed on both sides below the vehicle frame.

[0021] In one or more alternative embodiments, the tunnel pilot tunnel support trolley suitable for the double-sidewall pilot tunnel method further includes an angle sensor, a signal processor, and a buzzer;

[0022] Each of the tracked chassis is equipped with the tilt sensor;

[0023] The signal processor is connected to the tilt sensor and the buzzer respectively;

[0024] The buzzer is mounted on the vehicle frame.

[0025] In one or more alternative embodiments, the tunnel pilot tunnel support trolley suitable for the double-side-wall pilot tunnel method further includes a detachable frame disposed above the top operating platform.

[0026] In one or more alternative embodiments, the flipping work platform includes a steel mesh layer and a steel frame layer arranged vertically.

[0027] In one or more alternative embodiments, the support frame includes support columns and a climbing frame disposed between the support columns.

[0028] In one or more alternative embodiments, an outer operating platform is provided on the outer side of the vehicle frame;

[0029] The outer operating platform includes an operating platform body and a reinforcing frame connected vertically.

[0030] In one or more alternative embodiments, the fastener includes a bolt and a nut;

[0031] Each of the aforementioned flipping work platforms is provided with a first through hole;

[0032] The side wall of the frame is provided with a second through hole;

[0033] With the tilting platform in contact with the side wall of the vehicle frame, the bolt passes through the first through hole and the second through hole, and the nut is threadedly connected to the bolt.

[0034] The beneficial effects of the above-mentioned technical solutions provided by the embodiments of this utility model include at least the following:

[0035] The tunnel pilot tunnel support trolley provided in this embodiment of the utility model is suitable for the double-sided wall pilot tunnel method. The traveling mechanism can drive the frame to move, and the tilting working platform can be tilted to be perpendicular to the inner side of the frame. It is fixed to the frame by iron chains and the bottom support is provided by the support frame, realizing double support and protection for the tilting working platform when it is tilted to be perpendicular to the frame. It allows construction workers to carry out shotcrete support work at the middle height position inside the frame. Since the top of the frame is equipped with a top operating platform, it solves the problems of concrete falling from above and concrete splashing back from the front of the workers. Moreover, the workers can work at the middle height inside the frame, which solves the problem of narrow cross section of the pilot tunnel and insufficient operating space. This allows for better construction of the excavation face, reduces the limitation of operating space and operating angle, and thus improves construction efficiency and construction quality.

[0036] The tunnel pilot tunnel support trolley provided in this embodiment of the invention, applicable to the double-sidewall pilot tunnel method, allows the tilting platform to be tilted and retracted close to the inner side of the chassis after the shotcrete and anchor support work is completed in the current construction section. The lower support frame can also be disassembled and recycled for use in the next construction section. With the tilting platform retracted, the internal clearance of the chassis increases, allowing personnel and machinery to pass underneath the trolley. If necessary, the loader bucket can lift and move the trolley from underneath, preventing the trolley from being unable to move out of the tunnel in case of a malfunction in the traveling mechanism.

[0037] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0038] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0039] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0040] Figure 1 A front view of a tunnel pilot tunnel support trolley suitable for the double-side-wall pilot tunnel method provided in an embodiment of this utility model;

[0041] Figure 2 A schematic diagram of the overall structure of a tunnel pilot tunnel support work trolley suitable for the double-side-wall pilot tunnel method provided in this embodiment of the utility model;

[0042] Figure 3 This is a schematic diagram of the structure of the flipping work platform provided in an embodiment of the present utility model;

[0043] Figure 4 A schematic diagram of the magnetic splash-proof curtain structure provided for an embodiment of this utility model.

[0044] Figure label:

[0045] 1. Chassis; 11. Inner structural frame; 12. Outer structural frame; 2. Walking mechanism; 21. Tracked chassis; 3. Support frame; 31. Support column; 32. Climbing frame; 4. Top operating platform; 5. Tilting work platform; 51. Steel mesh layer; 52. Steel frame layer; 6. Fixing chain; 7. Demountable frame; 8. Outer operating platform; 81. Operating platform body; 82. Reinforcing frame; 9. Guide pit; 10. Auxiliary frame; 20. Magnetic splash curtain; 201. Magnetic strip; 202. Flexible curtain; 203. Counterweight bar. Detailed Implementation

[0046] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0047] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "far," "near," "front," and "rear," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0048] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0049] The inventors discovered that in current double-sided pilot tunnel construction practices, the small cross-sectional size of the pilot tunnel excavation results in very limited working space in the shotcrete and anchor support construction area, typically requiring manual operation using a support work trolley. Existing support work trolleys are usually designed with outward-extending working platforms. During support operations, the trolley's sides are too close to the rock surface, easily posing safety risks to workers, such as falling concrete overhead and concrete splashing back towards them. Furthermore, manual shotcrete and anchor support operations are limited to the ground or the top of the trolley, and the space constraints of the pilot tunnel make it difficult to guarantee construction quality for shotcrete and anchor support operations in the middle of both sides of the excavation face. Moving the support trolley usually relies on loaders, and even mini loaders are relatively large; therefore, when space is limited, moving the support trolley is time-consuming.

[0050] Based on this, the inventors conducted further research and development and created this utility model, which provides a tunnel guide tunnel support operation trolley suitable for the double-side-wall guide tunnel method.

[0051] This utility model embodiment provides a tunnel pilot tunnel support operation trolley suitable for the double-side-wall pilot tunnel method, referring to... Figure 1 and Figure 2 As shown, it includes a frame 1, a traveling mechanism 2, a support frame 3, fasteners (not shown in the figure), two tilting work platforms 5, and two fixed chains 6;

[0052] The walking mechanism 2 is located at the bottom of the vehicle frame 1;

[0053] The two tilting operation platforms 5 are respectively set on both sides of the interior of the vehicle frame 1;

[0054] One side of each of the aforementioned tilting work platforms 5 is hinged to the frame 1 so that the tilting work platform 5 can rotate relative to the frame 1, and the other side is connected to the frame 1 through a corresponding fixing chain 6;

[0055] With the tilting work platform 5 perpendicular to the side wall of the frame 1, the fixing chain 6 is pulled straight at an angle, and the support frame 3 is detachably installed below the tilting work platform 5.

[0056] With the tilting platform 5 in contact with the side wall of the frame 1, the fasteners lock and fix the tilting platform 5 to the side wall of the frame 1.

[0057] The top of the frame 1 is provided with a top operating platform 4.

[0058] In this embodiment, the walking mechanism 2 is used to move the chassis 1 within the guide pit 9 without relying on a loader, ensuring stable and rapid passage of the support work trolley within the guide pit. When the tilting work platform 5 is tilted to be perpendicular to the side wall of the chassis 1, it is in its working state, allowing construction workers to perform their work. At this time, the fixing chain 6 is pulled straight at an angle, fixing the tilting work platform 5 at an angle. After the support frame 3 is placed at the bottom of the tilting work platform 5 for support, construction workers can safely work on the tilting work platform 5. When the tilting work platform 5 is in contact with the side wall of the chassis 1, it can be locked and fixed to the side wall of the chassis 1 using fasteners, increasing the clearance below the chassis 1, allowing personnel and tools to pass through and preventing collisions.

[0059] The tunnel pilot tunnel support trolley provided in this embodiment of the utility model is suitable for the double-sided wall pilot tunnel method. The size of the frame 1 is adapted to the small cross-sectional size of the pilot tunnel 9. The walking mechanism 2 can drive the frame 1 to move and can be flipped to be perpendicular to the inner side of the frame 1. It is fixed to the frame 1 by iron chains and the bottom support is provided by the support frame 3, realizing double support and protection in the working state. It allows construction workers to carry out shotcrete support operations at the middle height position inside the frame 1. Since the top of the frame 1 is equipped with a top operating platform 4, it solves the problems of concrete falling from the head and concrete splashing back from the front side when construction workers are working. Moreover, the construction workers work at the middle height position inside the frame 1, which solves the problem of narrow cross-section of the pilot tunnel and insufficient operating space. This allows for better construction of the excavation face, reduces the limitation of operating space and operating angle, and thus improves the construction quality.

[0060] The tunnel pilot tunnel support trolley provided in this embodiment of the utility model is suitable for the double-sided wall pilot tunnel method. After the shotcrete and anchor support work in the current construction section is completed, the tilting work platform 5 can be tilted and folded up close to the inside of the frame 1. The lower support frame 3 can also be disassembled and recycled for use in the next construction section. When the tilting work platform 5 is folded up, the internal clearance of the frame 1 increases, allowing personnel and machinery to pass under the trolley. If necessary, the loader bucket can lift and move the trolley from under the trolley, preventing the trolley from being unable to move out of the tunnel in case of a failure of the traveling mechanism 2.

[0061] In this embodiment, refer to Figure 1 and Figure 2 As shown, the frame 1 includes an inner structural frame 11 and an outer structural frame 12 of the same shape. Both the inner structural frame 11 and the outer structural frame 12 are welded from I-beams. The outer structural frame 12 is larger than the inner structural frame 11. Furthermore, a connecting rod is welded between the inner structural frame 11 and the outer structural frame 12, thus obtaining an overall double-layer frame, which effectively improves stability and also provides convenience for installing the walking mechanism 2 at the bottom. The connecting rod can be an I-beam of a preset length.

[0062] In this embodiment, refer to Figure 1 and Figure 2 As shown, the inner structural frame 11 includes a first trapezoidal structural segment and a first rectangular main body segment connected vertically, and the outer structural frame 12 includes a second trapezoidal structural segment and a second rectangular main body segment connected vertically. The cross-sections of the first and second trapezoidal structural segments are trapezoidal and tend to taper upwards, thus better adapting to the shape of the upper part of the guide pit 9 and avoiding difficulty in passage or scraping due to an excessively wide top. The top operating platform 4 is fixed to the top of the second trapezoidal structural segment, and the width of the top operating platform 4 is consistent with the top width of the second trapezoidal structural segment. When necessary, construction workers can carry out construction work on the top of the guide pit 9 from the top operating platform 4, thereby ensuring that the work trolley can meet the construction needs of various parts within the guide pit 9.

[0063] In an optional embodiment, the tilting work platform 5 can be hinged to the inner structural frame 11 of the vehicle frame 1 via a hinge structure. The hinge structure can be in the form of hinges, with two hinges respectively fixing the tilting work platform 5 and the first rectangular main body section of the inner structural frame 11, and a hinge shaft inserted between the two hinges. This allows the tilting work platform 5 to be hinged to the middle of the inner side of the vehicle frame 1, enabling workers to perform shotcrete support operations on the tilting work platform 5. Since the workers are always inside the vehicle frame 1, and the top of the vehicle frame 1 is equipped with a top operating platform 4, the problems of concrete falling from above and splashing back into the front of the workers during operation are solved.

[0064] In an optional embodiment, the fixing chain 6 connects the tilting platform 5 and the inner structural frame 11 by welding. The fixing chain 6 is fixedly connected to the top I-beam of the first rectangular main body section of the inner structural frame 11, which is also the bottom I-beam of the first trapezoidal structural section. The fixing chain 6 can be a ø5×15 iron chain.

[0065] In an optional embodiment, refer to Figures 1-3 As shown, the tilting platform 5 includes a steel mesh layer 51 and a steel frame layer 52 arranged vertically. The steel frame layer 52 can be formed by welding steel pipes. The steel mesh layer 51 is laid on top of the steel frame layer 52 and fixed to it by methods such as wire binding. This minimizes the weight of the tilting platform 5 while ensuring sufficient load-bearing capacity. The specific structure of the top operating platform 4 is the same as that of the tilting platform 5; details that are repeated will not be described again. The steel mesh layer 51 can be made of steel mesh with a mesh size of 150mm and a diameter of 6mm.

[0066] In an optional embodiment, refer to Figure 1 and Figure 2 As shown, the support frame 3 includes support columns 31 and climbing frames 32 arranged between the support columns 31. Specifically, several vertically evenly distributed crossbars are arranged between the support columns 31 to form climbing frames 32 that are easy for people to climb, thus providing support while facilitating workers to climb onto the tilting work platform 5. The support columns can be made of steel pipes with a wall thickness greater than 3.5mm to avoid incomplete welding and ensure support strength.

[0067] In an optional embodiment, refer to Figure 1 and Figure 2 As shown, the traveling mechanism 2 includes tracked chassis 21 respectively disposed on both sides below the frame 1. The width of the tracked chassis 21 is equal to or slightly greater than the distance from the innermost point of the inner structural frame 11 to the outermost point of the outer structural frame 12, thereby ensuring the connection stability between the frame 1 and the tracked chassis 21. Furthermore, using the tracked chassis 21 as the traveling mechanism 2, compared to wheels, can effectively avoid the front-heavy nature of the work platform, reducing the risk of the work platform overturning. The tracked chassis 21 can adapt to varying terrains and working environments, and has excellent mobility in complex terrain conditions within the pilot tunnel 9.

[0068] In an optional embodiment, the tunnel pilot tunnel support trolley suitable for the double-sidewall pilot tunnel method further includes an inclination sensor, a signal processor, and a buzzer. Each tracked chassis 21 is equipped with one or more inclination sensors. The signal processor can communicate with the inclination sensors and the buzzer via wireless signal connection. The buzzer is located in the inner structural frame 11. The monitoring results of the inclination sensors are sent to the signal processor in real time. When the signal processor detects that the inclination angle is greater than a preset threshold, it controls the buzzer to sound an alarm to remind the construction workers to evacuate from the trolley and to facilitate the workers to take timely stabilization measures to prevent the trolley from tipping over.

[0069] In an optional embodiment, refer to Figure 1 and Figure 2 As shown, the tunnel pilot tunnel support trolley applicable to the double-side-wall pilot tunnel method also includes a detachable frame 7 mounted above the top operating platform 4. The detachable frame 7 can be detachably fixed to the top operating platform 4 and can adapt to the shape of the upper part of the pilot tunnel 9. If the distance between the arc-shaped high points of the top of the pilot tunnel 9 is too far during construction, the detachable frame 7 can be fixed below the corresponding position, thereby providing convenience for construction workers.

[0070] In an optional embodiment, refer to Figure 1 and Figure 2 As shown, an outer operating platform 8 is provided on the outer side of the frame 1. Specifically, the outer operating platform 8 can be welded and fixed to the outer side of the outer structural frame 12 according to actual needs. For example, some guide pits are irregularly shaped. When a certain height position of the guide pit is far from the horizontal distance of the frame 1, the outer operating platform 8 can be welded at the corresponding position to facilitate construction. The outer operating platform 8 includes an operating platform body 81 and a reinforcing frame 82 connected vertically. Both the operating platform body 81 and the reinforcing frame 82 are welded to the outer structural frame 12 to ensure structural stability. The specific structure of the operating platform body 81 is consistent with the structure of the tilting work platform 5, and the repetitions will not be repeated.

[0071] In an optional embodiment, the fasteners include bolts and nuts. Each tilting platform 5 is provided with a first through hole, and the side wall of the frame 1 is provided with a second through hole. When the tilting platform 5 is in contact with the side wall of the frame 1, the bolt can pass through the first and second through holes, and the nut and bolt are connected by threads to fix the tilting platform 5 to the inside of the frame 1 and keep it in a folded state.

[0072] In an optional embodiment, refer to Figure 1 and Figure 2As shown, the tunnel pilot tunnel support trolley suitable for the double-side-wall pilot tunnel method also includes an auxiliary frame 10 located on the inner side of the top of the inner structure frame 11. The auxiliary frame 10 is located in the middle of the frame 1 and can be used to install buzzers, suspend safety ropes, etc.

[0073] In an optional embodiment, refer to Figure 1 , Figure 2 and Figure 4 As shown, the tunnel pilot tunnel support trolley suitable for the double-side-wall pilot tunnel method also includes a magnetic splash guard 20. The magnetic splash guard 20 includes a magnetic strip 201, a flexible curtain 202, and a counterweight 203. The magnetic strip 201 covers the upper end of the flexible curtain 202, and the counterweight 203 covers the lower end of the flexible curtain 202. The magnetic strip 201 can be magnetically attached to any position on the frame, allowing the magnetic splash guard 20 to be installed at the location requiring protection, thus preventing splashing and protecting the safety of construction personnel. The counterweight 203 ensures the drape of the flexible curtain 202 to resist the impact of backsplashes, further improving the splash protection effect.

[0074] The tunnel pilot tunnel support trolley provided in this embodiment of the utility model is suitable for the double-sided wall pilot tunnel method. Construction workers can work inside the trolley 1, which solves the problem of insufficient operating space and workers being too close to the rock surface due to the narrow space inside the pilot tunnel. It greatly reduces the splashing of sprayed concrete on the front side. In addition, the top of the trolley 1 is equipped with a top operating platform 4, so there is no need to worry about the sprayed concrete falling from the top. The magnetic splash curtain 20 can be magnetically attached to any position on the trolley and is quick to install. It can be quickly magnetically attached to the required position before the support operation, further reducing the risk of workers being splashed by concrete.

[0075] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. This disclosure is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims. Thus, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model is also intended to include these modifications and variations.

Claims

1. A tunnel heading support jumbo for use in a double-slip method, characterized in that, It includes a frame, a traveling mechanism, a support frame, fasteners, two tilting work platforms, and two fixed chains; The walking mechanism is located at the bottom of the vehicle frame; The two tilting operation platforms are respectively located on both sides of the interior of the vehicle frame; One side of each of the aforementioned tilting work platforms is hinged to the vehicle frame so that the tilting work platform can rotate relative to the vehicle frame, and the other side is connected to the vehicle frame through a corresponding fixed chain; With the tilting work platform perpendicular to the side wall of the vehicle frame, the fixing chain is pulled straight at an angle, and the support frame is detachably installed below the tilting work platform; With the tilting platform in contact with the side wall of the vehicle frame, the fasteners lock and fix the tilting platform to the side wall of the vehicle frame. A top operating platform is provided on the top of the vehicle frame.

2. The tunnel pilot tunnel support work trolley applicable to the double-sidewall pilot tunnel method according to claim 1, characterized in that, The frame includes an inner structural frame and an outer structural frame of the same shape; Several connecting rods are welded between the inner structural frame and the outer structural frame; The inner structural frame includes a first trapezoidal structural segment and a first rectangular main body segment connected vertically. The outer structural frame includes a second trapezoidal structural segment and a second rectangular main body segment connected vertically. The cross-sections of the first trapezoidal structural segment and the second trapezoidal structural segment are trapezoidal and tend to converge upwards; The top operating platform is fixed to the top of the second trapezoidal structural segment, and the width of the top operating platform is the same as the top width of the second trapezoidal structural segment.

3. The tunnel pilot tunnel support work trolley applicable to the double-sidewall pilot tunnel method according to claim 2, characterized in that, It also includes hinged structures; The hinge structure connects the flipping work platform and the first rectangular main body segment respectively.

4. The tunnel pilot tunnel support work trolley applicable to the double-sidewall pilot tunnel method according to claim 1, characterized in that, The walking mechanism includes a tracked chassis respectively disposed on both sides below the vehicle frame.

5. The tunnel pilot tunnel support work trolley applicable to the double-side-wall pilot tunnel method according to claim 4, characterized in that, It also includes a tilt sensor, a signal processor, and a buzzer; Each of the tracked chassis is equipped with the tilt sensor; The signal processor is connected to the tilt sensor and the buzzer respectively; The buzzer is mounted on the vehicle frame.

6. The tunnel pilot tunnel support work trolley applicable to the double-sidewall pilot tunnel method according to claim 1, characterized in that, It also includes a detachable frame mounted above the top operating platform.

7. The tunnel pilot tunnel support work trolley applicable to the double-side-wall pilot tunnel method according to claim 1, characterized in that, The flipping operation platform includes a steel mesh layer and a steel frame layer arranged on the upper and lower levels.

8. The tunnel pilot tunnel support work trolley applicable to the double-sidewall pilot tunnel method according to claim 1, characterized in that, The support frame includes support columns and climbing frames disposed between the support columns.

9. The tunnel pilot tunnel support work trolley applicable to the double-sidewall pilot tunnel method according to claim 1, characterized in that, An external operating platform is provided on the outer side of the vehicle frame; The outer operating platform includes an operating platform body and a reinforcing frame connected vertically.

10. The tunnel pilot tunnel support work trolley applicable to the double-sidewall pilot tunnel method according to claim 1, characterized in that, The fasteners include bolts and nuts; Each of the aforementioned flipping work platforms is provided with a first through hole; The side wall of the frame is provided with a second through hole; With the tilting platform in contact with the side wall of the vehicle frame, the bolt passes through the first through hole and the second through hole, and the nut is threadedly connected to the bolt.

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