Supporting rack and method suitable for various modes of construction

Abstract

The invention discloses a supporting rack and method suitable for multi-mode construction, and relates to the technical field of tunnel construction.The supporting rack suitable for multi-mode construction comprises a supporting frame, first platforms are symmetrically arranged on the two sides of the supporting frame, and a second platform is installed above the two first platforms; a movable plate is mounted at the top of the supporting frame, rock drilling pieces are mounted in the first platform and the movable plate, folding platforms are mounted on the outer sides of the first mounting plate and the second platform, a lifting assembly is mounted at one end of the supporting frame, and moving assemblies are mounted on the two sides of the top of the supporting frame; the tunnel section can be preliminarily drilled through the rock drilling pieces, the movably-arranged rock drilling pieces can increase the drilling area, when all the rock drilling pieces in the rack synchronously move forwards, the requirement of a construction mode of a full-section method can be met, and when only the rock drilling pieces on the movable plate move forwards, the requirement of a construction mode of a step method can be met.

Description

Technical Field

[0001] This invention relates to the field of waste recycling technology, specifically a support frame and method applicable to various construction modes. Background Technology

[0002] In tunnel excavation, initial support is a crucial step in ensuring the stability of the surrounding rock and construction safety. Its main operations include anchor bolt installation, shotcreting, erecting steel arches, and installing reinforcing mesh. Currently, support trolleys are widely used in tunnel construction both domestically and internationally as core equipment providing a high-altitude work platform and integrating related machinery to improve construction efficiency and reduce manual labor intensity.

[0003] However, most existing support platforms are typically optimized for specific construction methods or tunnel cross-sections, such as the full-face method or bench method. This specialized design reveals significant limitations in practical applications. First, they lack adaptability. When a tunnel project requires dynamic adoption of different construction methods based on changing geological conditions, existing platforms, due to their fixed structure and simple platform layout, often cannot adapt to new workspace requirements and process flows. Construction units are forced to invest in customizing or purchasing new platforms, resulting in high equipment costs and low utilization rates. Second, adjustments are cumbersome and inefficient. While some platforms possess a degree of adjustability, adjustments often rely on manual disassembly and reconstruction using bolted connections. This process is time-consuming and labor-intensive, severely restricting the speed of process transitions and impacting the construction schedule. Third, they have low functional integration. Traditional platforms are mostly designed to meet single support functions, failing to fully consider the collaborative flow of multiple support processes. Repeated equipment entry and exit also reduces overall construction efficiency. Therefore, there is an urgent need in this field for a support platform and construction method applicable to multiple construction modes. Summary of the Invention

[0004] The purpose of this invention is to provide a support frame and method applicable to various construction modes, in order to solve the problems raised in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: the support frame applicable to multiple construction modes includes a support frame, first platforms symmetrically arranged on both sides of the support frame, a second platform installed above the two first platforms, a movable plate installed on the top of the support frame, rock drilling components installed inside the first platforms and the movable plate, folding platforms installed on the outer sides of the first mounting plate and the second platform, a lifting component installed at one end of the support frame, and moving components installed on both sides of the top of the support frame.

[0006] As a preferred technical solution, the bottom of the support frame is equipped with track wheels, the top of the support frame is equipped with a fixed frame, the middle of the fixed frame is provided with a first track, the top of both sides of the fixed frame is provided with limiting rods, the inner side of the limiting rod is provided with a first track groove, and the outer side of the limiting rod is provided with a second track groove.

[0007] As a preferred technical solution, the first platform includes a plurality of crossbars arranged at equal intervals, a second track installed on the crossbars, a plurality of fixed seats provided at the bottom of the crossbars, and a connecting plate provided on the outer side of the crossbars.

[0008] As a preferred technical solution, the second platform includes crossbars arranged at equal intervals and a plate fixedly installed on the top of the crossbars.

[0009] As a preferred technical solution, the movable plate has a slot in the middle, and several pulleys are provided on both sides of the movable plate. The pulleys are embedded in the first track slot. The pulleys on both sides of the movable plate are connected by a drive shaft. The drive shaft is provided with drive teeth. A drive motor is installed on the side of the movable plate near the drive shaft. The output end of the drive motor is connected to the drive tooth. The drive tooth meshes with the drive tooth. A guardrail is provided on the movable plate.

[0010] As a preferred technical solution, the rock drilling component includes a driving part, driving wheels are installed on both sides of the driving part, one end of the driving part is connected to a first movable rod, a first telescopic rod is installed at the bottom of the first movable rod, the other end of the first movable rod is connected to a second movable rod, a second telescopic rod is installed between the first movable rod and the second movable rod, and a pusher is installed at the top of the second movable rod.

[0011] As a preferred technical solution, the folding platform includes a folding plate, a plurality of pneumatic push rods are connected to the bottom of the folding plate, the other end of the pneumatic push rods is connected to the fixed base, and a plurality of connecting seats are installed on the surface of the folding plate.

[0012] As a preferred technical solution, the lifting assembly includes vertical rails symmetrically installed at one end of the support frame, a lifting motor installed at the bottom of the vertical rails, a lead screw connected to the output end of the lifting motor, the lead screw installed inside the vertical rails, a lifting seat connected to the lead screw, and the lifting seat being movably connected to the lifting bracket.

[0013] As a preferred technical solution, the movable component includes a movable bracket and a drive motor fixedly installed on the movable bracket. A second pulley is installed on the inner side of the movable bracket. The second pulley is connected to the output end of the drive motor. The second pulley is embedded in the second track groove. A groove is provided on the top of the movable bracket.

[0014] The present invention provides a method for using a support platform suitable for various construction modes, the steps of which are as follows: Step 1: Move the arch reinforcement bars onto the lifting support, and flatten the folding platforms on both sides under the drive of the pneumatic push rod; Step 2: Driven by the lifting motor, transport the arch top steel bars to the top of the support frame, and then transfer the arch top steel bars into the moving assembly; Step 3: Driven by the drive motor, install the arch reinforcement bars at various positions on the top of the tunnel, and pour cement to slab the top and sides of the tunnel. Step 4: Drive the rock drill to drill a hole in front of the tunnel. Driven by the transmission motor, the movable plate moves forward, driving the rock drill to continue drilling forward. Step 5: Repeat steps 1 through 4 until the tunnel construction is completed.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. During tunnel construction, rock drills can be used to make preliminary drillings on the tunnel cross-section. The movable rock drills can increase the drilling area. Depending on the construction environment, different construction modes can be selected by adjusting the rock drills. When all the rock drills in the platform move forward synchronously, the requirements of the full-section method construction mode can be met. When only the rock drills on the movable plate move forward, the requirements of the step method construction mode can be met. 2. By setting up movable plates and folding platforms, sufficient construction platforms can be provided, which makes it convenient for workers to optimize the tunnel cross-section after drilling the rock drill, prevent the borehole cross-section from collapsing, and ensure the safety of tunnel construction. 3. Through the cooperation of the lifting and moving components, the reinforcing steel bars can be conveniently transported to the top of the support frame, and the steel bars can be quickly fixed by the moving support, which facilitates the subsequent cement pouring. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention; Figure 3 This is a cross-sectional structural diagram from another perspective of the present invention; Figure 4 This is a cross-sectional view of the movable plate of the present invention; Figure 5 This is a schematic diagram of the rock drilling component of the present invention; Figure 6 yes Figure 2 Enlarged structural diagram at point A in the diagram; Figure 7 yes Figure 4A magnified structural diagram at point B in the diagram.

[0017] In the diagram: 1. Support frame; 2. First platform; 3. Second platform; 4. Movable plate; 5. Rock drill; 6. Folding platform; 7. Lifting assembly; 8. Moving assembly; 11. Track wheel; 12. Fixed frame; 13. Limiting rod; 21. Crossbar; 22. Second track; 31. Flat plate; 41. Groove; 42. Pulley; 43. Drive shaft; 44. Drive motor; 45. Drive gear; 46. Guardrail; 51. Drive unit; 52. Drive wheel; 53. First movable rod; 54. Second movable rod; 55. Thruster; 61. Folding plate; 62. Pneumatic push rod; 63. Connecting seat; 71. Vertical track; 72. Lifting motor; 73. Lead screw; 74. Lifting seat; 75. Lifting bracket; 81. Moving bracket; 82. Drive motor; 83. Second pulley; 84. Groove; 1201, First track groove; 1301, Second track groove; 2101, Fixed base; 2102, Connecting plate; 4301, Transmission gear; 5301, First telescopic rod; 5401, Second telescopic rod. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example: Figures 1-7As shown, this invention provides a technical solution for a support frame and method suitable for multiple construction modes. The support frame includes a support frame 1, with first platforms 2 symmetrically arranged on both sides of the support frame 1. Second platforms 3 are installed above the two first platforms 2. A movable plate 4 is installed on the top of the support frame 1. Rock drilling components 5 are installed inside both the first platforms 2 and the movable plate 4. Folding platforms 6 are installed on the outer sides of both the first mounting plate 2 and the second platform 3. A lifting assembly 7 is installed at one end of the support frame 1, and moving components 8 are installed on both sides of the top of the support frame 1. First, the support frame is moved to the vicinity of the section to be constructed inside the tunnel. Due to the uneven road surface inside the tunnel, it is driven by track wheels 11. The kinetic energy system allows for normal movement on various complex road surfaces, preventing tire dents. After reaching the optimal position, the rock drill 5 is activated. Since the rock drill 5 is installed on top of the support frame 1 and within the first platform 2, and the drive wheels 52 are embedded in the first track 1201 and the second track 22 respectively, the rock drill 5 can move freely along the tracks. Thus, the rock drill 5 can continuously move forward while drilling, increasing the drilling range while the support frame is fixed. The first telescopic rod 5301 at the bottom of the first movable rod 53 can arbitrarily adjust the height of the pusher 55 on the rock drill 5. The second telescopic rod 5401 on the second movable rod 54 can control the pusher 55 to move forward. Rotation, through the cooperation of the first movable rod 53 and the second movable rod 54, and with the addition of three rock-drilling components 5 at different positions, enables the rock-drilling components 5 to drill holes in all directions of the tunnel cross-section, greatly improving the coverage of drilling construction. This operation of multiple rock-drilling components 5 working simultaneously to drill holes in the entire tunnel cross-section meets the requirements of the full-section method construction mode. In particular, when drilling the cross-section using the step method construction mode, drilling will not be carried out below the tunnel cross-section temporarily. At this time, the cross-section forms a step. To facilitate construction by workers, the movable plate 4 moves forward under the drive of the drive motor 44, extends the support frame and moves above the step. At this time, workers can drill holes in the tunnel on the movable plate 4. The cross-section is trimmed, or workers can step out from the movable plate 4 and stand directly on the stepped cross-section to carry out construction. The movable plate 4 can adapt to the needs of different construction modes. After the rock drill 5 completes drilling, the cross-section after drilling needs to be trimmed manually. At this time, the folded plate 61 in the folded state is pushed out by the pneumatic push rod 62 until the folded plate 61 is rotated to the same level as the first platform 2 or the second platform 3. Then, the connecting plate 2101 on the outside of the crossbar 21 is inserted into the connecting seat 63 on the folded plate 61 to complete the fixation of the platform and the folded plate 61. The flattening of the folded plate 61 can provide workers with enough room to move, which is convenient for workers to carry out subsequent construction on the tunnel end face. The support frame 1 has a track wheel 11 installed at the bottom and a fixed frame 12 installed at the top. The fixed frame 12 has a first track 1201 in the middle and a limiting rod 13 on the top of both sides of the fixed frame 12. The limiting rod 13 has a first track groove 1301 on the inner side and a second track groove 1302 on the outer side. The feeding assembly 3 includes a feeding base 31 fixed on the first bracket 1. A feeding cylinder 32 is installed on the feeding base 31. Several first mounting grooves 3201 are evenly opened on the feeding cylinder 32. A first motor 3101 is installed on one side of the feeding base 31. The output end of the first motor 3101 is connected to the feeding cylinder 32. A plastic bottle collection bin 33 is installed on the top of the feeding cylinder 32. Plastic bottles are placed in the plastic bottle collection bin 33.

[0020] The first platform 2 includes several horizontal bars 21 arranged at equal intervals, a second track 22 installed on the horizontal bars 21, several fixed seats 2101 at the bottom of the horizontal bars 21, and a connecting plate 2102 on the outside of the horizontal bars 21; the second platform 3 includes horizontal bars 21 arranged at equal intervals and a flat plate 31 fixedly installed on the top of the horizontal bars 21.

[0021] The movable plate 4 has a slot 41 in the middle and several pulleys 42 on both sides. The pulleys 42 are embedded in the first track groove 1301. The pulleys 42 on both sides of the movable plate 4 are connected by a drive shaft 43. The drive shaft 43 is provided with a drive gear 4301. A drive motor 44 is installed on the side of the movable plate 4 near the drive shaft 43. The output end of the drive motor 44 is connected to the drive gear 45. The drive gear 45 meshes with the drive gear 4301. A guardrail 46 is provided on the movable plate 4.

[0022] The rock drilling component 5 includes a drive unit 51, with drive wheels 52 mounted on both sides of the drive unit 51. One end of the drive unit 51 is connected to a first movable rod 53. A first telescopic rod 5301 is mounted at the bottom of the first movable rod 53. The other end of the first movable rod 53 is connected to a second movable rod 54. A second telescopic rod 5401 is installed between the first movable rod 53 and the second movable rod 54. A pusher 55 is mounted on the top of the second movable rod 54.

[0023] The folding platform 6 includes a folding plate 61. Several pneumatic push rods 62 are connected to the bottom of the folding plate 61. The other end of the pneumatic push rods 62 is connected to the fixed seat 2101. Several connecting seats 63 are installed on the surface of the folding plate 61. After the rock drill 5 completes drilling, the cross-section after drilling needs to be trimmed manually. At this time, the folding plate 61 in the folded state is pushed out by the pneumatic push rods 62 until the folding plate 61 rotates to the same horizontal height as the first platform 2 or the second platform 3. Then, the connecting plate 2101 on the outside of the crossbar 21 is inserted into the connecting seat 63 on the folding plate 61 to complete the fixation of the platform and the folding plate 61. The flattening of the folding plate 61 can provide workers with sufficient room to move, which is convenient for workers to carry out subsequent construction on the tunnel end face.

[0024] The lifting assembly 7 includes vertical rails 71 symmetrically installed at one end of the support frame 1. A lifting motor 72 is installed at the bottom of the vertical rails 71. The output end of the lifting motor 72 is connected to a lead screw 73, which is installed inside the vertical rails 71. A lifting seat 74 is connected to the lead screw 73, and the lifting seat 74 is movably connected to the lifting bracket 75. The moving assembly 8 includes a moving bracket 81 and a drive motor 82 fixedly installed on the moving bracket 81. A second pulley 83 is installed inside the moving bracket 81 and is connected to the output end of the drive motor 82. The second pulley 83 is embedded in the second track groove 1302. The highest point of the vertical rail 71 is at the same height as the highest point of the moving bracket 81, which greatly saves the labor required to transfer the reinforcing bars from the lifting bracket 75 to the moving bracket 81. After the tunnel cross-section is finished, it is necessary to add reinforcing bars and... The tunnel is reinforced by concrete pouring to prevent collapse. When reinforcing the tunnel roof, the arched steel bars used for the arch are first moved to the lifting support 75. After the steel bars are fixed, the lifting motor 74 is started. The lifting motor 74 drives the screw 73 to rotate, raising the lifting seat 74 connected to the lifting support 75, thereby raising the steel bars. When the steel bars reach the top of the support frame 1, they are moved to the top of the movable support 81 and placed in the groove 84 at the top to prevent them from falling. With the support of the movable support 81, the second pulley 83 on the movable support 81 rotates under the drive of the drive motor 82, thereby moving the movable support 81 along the direction of the second track groove 1302. This allows the steel bars to be moved to any position on the tunnel roof and fixed. Then, the concrete pouring is completed.

[0025] The present invention provides a method for using a support platform suitable for various construction modes, the steps of which are as follows: Step 1: Move the arch reinforcement bars onto the lifting support 75, and flatten the folding platforms 6 on both sides under the drive of the pneumatic push rod 62; Step 2: Driven by the lifting motor 72, the arch top steel bars are transported to the top of the support frame 1, and then the arch top steel bars are transferred to the moving assembly 8; Step 3: Driven by the drive motor 82, install the arch steel bars at various positions on the top of the tunnel, and pour cement to slab the top and sides of the tunnel. Step 4: Drive the rock drill 5 to drill a hole in front of the tunnel. Driven by the transmission motor 44, move the movable plate 4 forward and drive the rock drill 5 to continue drilling forward. Step 5: Repeat steps 1 through 4 until the tunnel construction is completed.

[0026] Working principle of the invention: First, the support frame is moved to the vicinity of the section to be constructed inside the tunnel. Due to the uneven road surface inside the tunnel, the tracked wheels 11 drive the frame to move normally on various complex road surfaces, preventing the tires from getting stuck. After moving to the optimal position, the rock drill 5 is activated. Since the rock drill 5 is installed on the top of the support frame 1 and inside the first platform 2, and the drive wheels 52 are respectively embedded in the first track 1201 and the second track 22, the rock drill 5 can move freely along the tracks. Thus, the rock drill 5 can continuously move forward while drilling, increasing the drilling range while the support frame is fixed. The first telescopic rod 5301 at the bottom of the first movable rod 53 can arbitrarily adjust the height of the pusher 55 on the rock drill 5. The second telescopic rod 5401 on the second movable rod 54 can control the rotation of the pusher 55. With the cooperation of 54 and the addition of three rock drills 5 at different positions, the rock drills 5 can drill holes in all directions of the tunnel cross-section, greatly improving the coverage of drilling construction. This operation of multiple rock drills 5 working simultaneously to drill holes in the entire cross-section of the tunnel meets the requirements of the full-section method construction mode. In particular, when drilling the cross-section using the step method construction mode, drilling will not be carried out at the bottom of the tunnel cross-section temporarily. At this time, the cross-section forms a step. In order to facilitate the construction work, the movable plate 4 moves forward under the drive of the drive motor 44, extends the support frame and moves to the top of the step. At this time, the workers can adjust the tunnel cross-section on the movable plate 4, or walk out of the movable plate 4 and directly stand on the step cross-section to carry out construction. Through the movable plate 4 and the rock drills 5 set in different positions, the needs of different construction modes can be adapted, thereby improving the applicability of the support frame.

[0027] After the rock drill 5 completes drilling, the cross-section after drilling needs to be trimmed manually. At this time, the folded plate 61 in the folded state is pushed out by the pneumatic push rod 62 until the folded plate 61 is rotated to the same level as the first platform 2 or the second platform 3. Then, the connecting plate 2101 on the outside of the crossbar 21 is inserted into the connecting seat 63 on the folded plate 61 to complete the fixation of the platform and the folded plate 61. The flattening of the folded plate 61 can provide workers with enough room to move, which is convenient for workers to carry out subsequent construction on the tunnel end face.

[0028] After the tunnel cross-section is repaired, it needs to be reinforced by adding steel bars and pouring cement to prevent collapse inside the tunnel. When reinforcing the tunnel top, the arc-shaped steel bars used for the arch are first moved to the lifting support 75. After the steel bars are fixed, the lifting motor 74 is started. The lifting motor 74 drives the screw 73 to rotate, which lifts the lifting seat 74 connected to the lifting support 75, thereby driving the steel bars to rise. When the steel bars rise to the top of the support frame 1, they are moved to the top of the movable support 81 and placed into the groove 84 at the top to prevent the steel bars from falling. With the support of the movable support 81 and driven by the drive motor 82, the steel bars can be moved to any position on the tunnel top and fixed. Then the cement pouring is completed, and the above operation is repeated for the next section of the tunnel cross-section.

[0029] During tunnel construction, the rock drill 5 can be used to perform preliminary drilling on the tunnel cross section. The movable rock drill 5 can increase the drilling area. Depending on the construction environment, different construction modes can be selected by adjusting the rock drill 5. When all the rock drill 5 in the platform moves forward synchronously, it can meet the requirements of the full-section method construction mode. When only the rock drill 5 on the movable plate 4 moves forward, it can meet the requirements of the step method construction mode.

[0030] By setting up the movable plate 4 and the folding platform 6, sufficient construction space can be provided, which makes it convenient for workers to optimize the tunnel cross section after drilling the rock drill 5, prevent the borehole cross section from collapsing, and ensure the safety of tunnel construction.

[0031] By combining the lifting assembly 7 and the moving assembly 8, the reinforcing steel bars can be conveniently transported to the top of the support frame, and the steel bars can be quickly fixed by the support of the moving bracket 81, which facilitates subsequent cement pouring.

[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A support platform suitable for multiple construction modes, characterized in that: The support frame applicable to multiple construction modes includes a support frame (1), with first platforms (2) symmetrically arranged on both sides of the support frame (1), and second platforms (3) installed above the two first platforms (2). A movable plate (4) is installed on the top of the support frame (1). Rock drilling components (5) are installed inside the first platforms (2) and the movable plate (4). Folding platforms (6) are installed on the outside of the first mounting plate (2) and the second platform (3). A lifting component (7) is installed at one end of the support frame (1), and moving components (8) are installed on both sides of the top of the support frame (1).

2. The support frame and method applicable to multiple construction modes according to claim 1, characterized in that: The support frame (1) is equipped with a track wheel (11) at the bottom and a fixed frame (12) at the top. The fixed frame (12) has a first track (1201) in the middle and a limiting rod (13) on the top of both sides of the fixed frame (12). The limiting rod (13) has a first track groove (1301) on the inner side and a second track groove (1302) on the outer side.

3. The support frame and method applicable to multiple construction modes according to claim 2, characterized in that: The first platform (2) includes several crossbars (21) arranged at equal intervals, a second track (22) is installed on the crossbars (21), several fixed seats (2101) are provided at the bottom of the crossbars (21), and a connecting plate (2102) is provided on the outside of the crossbars (21).

4. The support frame and method applicable to multiple construction modes according to claim 3, characterized in that: The second platform (3) includes crossbars (21) arranged at equal intervals and a plate (31) fixedly installed on the top of the crossbars (21).

5. A support frame and method applicable to multiple construction modes according to claim 4, characterized in that: The movable plate (4) has a slot (41) in the middle. Several pulleys (42) are provided on both sides of the movable plate (4). The pulleys (42) are embedded in the first track groove (1301). The pulleys (42) on both sides of the movable plate (4) are connected by a transmission shaft (43). The transmission shaft (43) is provided with a transmission tooth (4301). A transmission motor (44) is installed on the side of the movable plate (4) near the transmission shaft (43). The output end of the transmission motor (44) is connected to a drive tooth (45). The drive tooth (45) meshes with the transmission tooth (4301). A guardrail (46) is provided on the movable plate (4).

6. A support frame and method applicable to multiple construction modes according to claim 5, characterized in that: The rock drill (5) includes a drive unit (51), with drive wheels (52) installed on both sides of the drive unit (51). One end of the drive unit (51) is connected to a first movable rod (53), and a first telescopic rod (5301) is installed at the bottom of the first movable rod (53). The other end of the first movable rod (53) is connected to a second movable rod (54), and a second telescopic rod (5401) is installed between the first movable rod (53) and the second movable rod (54). A pusher (55) is installed at the top of the second movable rod (54).

7. A support frame and method applicable to multiple construction modes according to claim 6, characterized in that: The folding platform (6) includes a folding plate (61), the bottom of which is connected to a plurality of pneumatic push rods (62), the other end of which is connected to the fixed seat (2101), and a plurality of connecting seats (63) are installed on the surface of the folding plate (61).

8. A support frame and method applicable to multiple construction modes according to claim 7, characterized in that: The lifting assembly (7) includes a vertical rail (71) symmetrically installed at one end of the support frame (1). A lifting motor (72) is installed at the bottom of the vertical rail (71). The output end of the lifting motor (72) is connected to a lead screw (73). The lead screw is installed inside the vertical rail (71). A lifting seat (74) is connected to the lead screw (73). The lifting seat (74) is movably connected to the lifting bracket (75).

9. A support frame and method applicable to multiple construction modes according to claim 8, characterized in that: The moving component (8) includes a moving bracket (81) and a drive motor (82) fixedly mounted on the moving bracket (81). A second pulley (83) is installed on the inner side of the moving bracket (81). The second pulley (83) is connected to the output end of the drive motor (82). The second pulley (83) is embedded in the second track groove (1302). A groove (84) is provided on the top of the moving bracket (81).

10. A method for using a support platform applicable to multiple construction modes according to claim 9, comprising the following steps: Step 1: Move the arch reinforcement to the lifting assembly (7), and flatten the folding platforms (6) on both sides under the drive of the pneumatic push rod (62); Step 2: Driven by the lifting motor (72), the arch top steel bars are transported to the top of the support frame (1), and then the arch top steel bars are transferred to the moving assembly (8); Step 3: Driven by the drive motor (82), install the arch reinforcement at various positions on the top of the tunnel, and pour cement to slab the top and sides of the tunnel. Step 4: Drive the rock drill (5) to drill a hole in front of the tunnel. Driven by the transmission motor (44), the movable plate (4) moves forward, driving the rock drill (5) to continue drilling forward. Step 5: Repeat steps 1 through 4 until the tunnel construction is completed.

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