A novel multi-functional muck removal system for tunnel anchors

Abstract

This utility model discloses a novel multi-functional muck removal system for tunnel anchors, including an external truss, a tunnel truss, an excavator transport platform, and a muck removal vehicle. The external truss is equipped with an external track, a main winch, and an auxiliary winch. The tunnel truss is equipped with a tunnel track, and a branch rail is provided at the connection between the external track and the tunnel track. The excavator transport platform includes an excavator transport support frame, which is equipped with an angle-adjustable main platform, a front platform, and a rear platform. This ensures that the main platform remains level under different track angles, reducing the risk of the excavator tipping over during transport. Both the excavator transport platform and the muck removal vehicle are equipped with braking systems and anti-tipping components, further improving construction safety.

Description

Technical Field

[0001] This utility model relates to a bridge anchorage construction technology, specifically to a novel multi-functional muck removal system for tunnel anchorages. Background Technology

[0002] In today's rapidly developing bridge construction, suspension bridges have become the preferred bridge type for ultra-long-span bridges due to their superior spanning capacity. Among these, the anchorage is the main load-bearing structure of a suspension bridge and a crucial part for anchoring the main cable. Its primary function is to transfer the tension of the main cable to the foundation. Suspension bridge anchorages are divided into self-anchored and ground-anchored types, with ground-anchored types further divided into gravity-type and tunnel-type. Tunnel-type anchorages (hereinafter referred to as "tunnel anchors") can better integrate with the engineering geological conditions of the anchorage site, utilizing the combined action of the anchor plug and the surrounding rock mass. Their engineering scale is generally much smaller than that of gravity anchors of the same load-bearing capacity (only 20% to 25% of the size of gravity anchors), making it a cost-effective anchorage structure with minimal disturbance to the surrounding environment. However, tunnel anchors have a unique structural form, with a large angle between their axis and the horizontal plane, a steep slope, and extremely difficult muck removal and access for engineering machinery after blasting, resulting in lower construction efficiency and higher safety risks. Therefore, it is necessary to develop a new multi-functional muck removal system for tunnel anchors.

[0003] The applicant's Chinese invention patent CN116200974A, filed in 2022, discloses a multi-functional muck removal method for tunnel anchors. This method involves constructing a tunnel truss inside the tunnel, installing tunnel tracks on the truss, and installing an external truss outside the tunnel, mounting external tracks and a winch on the external truss. The external tracks are connected to the tunnel tracks, and the connection direction is adjusted at the junction using a branch rail. Excavator transport platforms and muck removal vehicles are transported on a single tunnel track. This invention effectively solves the problems of low muck removal efficiency, difficulty in accessing and exiting excavators and other construction machinery, and high safety risks in the construction of ultra-long, steep-angle tunnel anchors. It uses only one track to simultaneously meet the needs of muck removal and transportation, as well as the access of excavators, down-the-hole drills, and wet spraying vehicles. It is applicable to both large and small cross-section tunnel anchor construction, reducing construction costs.

[0004] During actual use, the applicant found that the angle adjustment of the excavator transport platform could not keep the excavator horizontal during transport at different track angles, thus increasing the risk of the excavator tipping over. Furthermore, when the excavator was unloaded from the excavator transport platform, the small adjustment angle of the platform made it difficult to lower the excavator into the complex environment at the bottom of the tunnel. At the same time, the original application's muck removal system lacked sufficient safety assurance during the movement of the excavator transport platform and muck removal vehicle, and its safety performance needed to be further improved. Utility Model Content

[0005] To address the aforementioned issues, this invention provides a novel multi-functional muck removal system for tunnel anchors, which enables a wider range of angle adjustments for the excavator transport platform while enhancing the safety of the excavator transport platform and muck removal vehicle during movement.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: A novel multi-functional muck removal system for tunnel anchors, comprising an external truss, a tunnel truss, an excavator transport platform, and a muck removal vehicle. The external truss is equipped with an external track, a main winch, and an auxiliary winch. The tunnel truss is equipped with a tunnel track, and a branch track is provided at the connection between the external track and the tunnel track. The excavator transport platform includes an excavator transport support, on which a main platform is mounted. The main platform is connected to the rod end of a first hydraulic cylinder, and the rodless end of the first hydraulic cylinder is connected to the excavator transport support. A main platform anti-fall device is provided between the main platform and the excavator transport support. A front plate and a rear plate are hinged to the front and rear of the main platform, respectively. The front plate is connected to the rod end of a second hydraulic cylinder, and the rodless end of the second hydraulic cylinder is connected to the main platform. The rear plate is connected to the rod end of a third hydraulic cylinder, and the rodless end of the third hydraulic cylinder is connected to the main platform.

[0007] Preferably, the main platform anti-fall device includes a telescopic outer tube and a telescopic inner tube that are slidably connected. The telescopic outer tube is hinged to the main platform, and the telescopic inner tube is hinged to the excavator transport support. Several anti-fall slots are evenly spaced on the telescopic inner tube, and an anti-fall block is provided on the telescopic outer tube. A first return spring is provided between the anti-fall block and the telescopic outer tube.

[0008] Preferably, both the excavator transport platform and the muck truck are equipped with a braking system, which includes a rear wheel follow-up braking system. The rear wheel follow-up braking system includes a follow-up brake block hinged to the rear wheel axle. The follow-up brake block is equipped with a connecting rod, and the connecting rod is equipped with a stop block. Both the excavator transport platform and the muck truck are equipped with stop posts for limiting the stop block. Several track brake holes are arranged at equal intervals on the external track and the tunnel track.

[0009] Preferably, the braking system further includes a front wheel anti-rope breakage braking system, which includes an anti-rope breakage brake block hinged to the front wheel axle. A wire rope pulley traction system is also hinged to the front wheel axle. The anti-rope breakage brake block is connected to the wire rope pulley traction system. The anti-rope breakage brake block is connected to one end of a second return spring, and the other end of the second return spring is fixed.

[0010] Preferably, both the excavator transport platform and the muck truck are equipped with anti-overturning wheels, and anti-overturning grooves are provided on the external track and the tunnel track, with the anti-overturning wheels installed in the anti-overturning grooves.

[0011] Preferably, the slag discharge vehicle is equipped with a slag discharge hopper, and a slag discharge port is provided at the bottom of the slag discharge hopper, which is covered by a gate.

[0012] Preferably, the feed inlet angle of the slag discharge vehicle is 18° to 25°.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. The excavator transport platform of this utility model is equipped with a movable main platform on the basis of the original. By adjusting the first hydraulic cylinder, the main platform can always be kept horizontal under different track angles, thereby reducing the risk of the excavator tipping over during transportation. At the same time, when the excavator is lowered from the excavator transport platform to the bottom of the tunnel, the angles of the main platform and the rear ramp can be adjusted simultaneously, which is conducive to the smooth lowering of the excavator. Moreover, the excavator transport platform is equipped with a main platform anti-fall device, which can further improve the stability and safety of the excavator transport platform during movement.

[0015] 2. This utility model is equipped with a braking system and anti-tipping components on both the excavator transport platform and the muck truck, which can further improve the safety of construction. The braking system is divided into a rear wheel follow-up braking system and a front wheel anti-rope breakage braking system. The rear wheel follow-up braking system moves with the excavator transport platform or muck truck during ascent and responds quickly when it stops to keep the excavator transport platform or muck truck stable. The front wheel anti-rope breakage braking system responds quickly when the winch wire rope suddenly breaks, and works together with the rear wheel follow-up braking system to stop the excavator transport platform or muck truck in time. The anti-tipping components ensure that the excavator transport platform or muck truck will not tip over in the event of impact or winch wire rope breakage, avoiding personnel injury or equipment damage.

[0016] 3. This utility model has a discharge port at the bottom of the slag discharge car, which is covered by a gate. The gate is opened by a hydraulic cylinder, and the slag falls directly into the slag transport vehicle. This discharge method is safer and more efficient. The angle of the slag discharge car inlet is set at 18° to 25°, which can well balance the inclination angle of the slag during transportation and when the slag is placed horizontally, increasing the slag discharge and transportation efficiency and reducing the risk of slag falling during transportation. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a structural schematic diagram of an excavator transport platform;

[0020] Figure 3 for Figure 1 Enlarged view of the fall arrest device structure on the main platform at point A;

[0021] Figure 4 for Figure 1 Enlarged view of the rear wheel follow-up braking system at point B;

[0022] Figure 5 for Figure 2 Enlarged view of the rear wheel follow-up braking system at point D;

[0023] Figure 6 for Figure 1 Enlarged view of the front wheel anti-rope breakage braking system at point C;

[0024] Figure 7 for Figure 2 Enlarged view of the front wheel anti-rope breakage braking system at point E;

[0025] Figure 8 This is a structural schematic diagram of a slag removal vehicle;

[0026] In the diagram: 1. External truss; 2. Tunnel truss; 3. Excavator transport platform; 4. Muck truck; 5. External track; 6. Main winch; 7. Auxiliary winch; 8. Tunnel track; 9. Switch rail; 10. Follow-up brake block; 11. Connecting rod; 12. Stop block; 13. Stop post; 14. Brake hole; 15. Anti-rope breakage brake block; 16. Wire rope pulley traction system; 17. Second return spring; 18. 19. Anti-tipping wheel; 20. Anti-tipping groove; 31. Gate; 32. Excavator transport support; 33. Main platform; 34. First hydraulic cylinder; 35. Front ramp; 36. Rear ramp; 37. Second hydraulic cylinder; 38. Third hydraulic cylinder; 39. Telescopic outer tube; 300. Telescopic inner tube; 3010. Anti-fall groove; 3011. Anti-fall block; 3012. First return spring; 401. Slag hopper. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0028] The technical solution of this utility model will be described in detail below with reference to specific embodiments. The following specific embodiments can be selected to be combined or substituted with each other according to the actual situation. The same or similar concepts or processes may not be described again in some embodiments.

[0029] Example 1

[0030] like Figures 1 to 2As shown, a novel multi-functional muck removal system for tunnel anchors includes an external truss 1, a tunnel truss 2, an excavator transport platform 3, and a muck removal vehicle 4. The external truss 1 is equipped with an external track 5, a main winch 6, and an auxiliary winch 7. The tunnel truss 2 is equipped with a tunnel track 8, and a branch rail 9 is provided at the connection between the external track 5 and the tunnel track 8. The excavator transport platform 3 includes an excavator transport support 301, on which a main platform 302 is mounted, and the main platform 302 is connected to a first hydraulic cylinder. The first hydraulic cylinder 303 has a rod end and a rodless end connected to the excavator transport support 301. A main platform anti-fall device is provided between the main platform 302 and the excavator transport support 301. The main platform 302 is hinged to the front and rear of the front and rear of the front plate 304 and the rear plate 305, respectively. The front plate 304 is connected to the rod end of the second hydraulic cylinder 306, and the rodless end of the second hydraulic cylinder 306 is connected to the main platform 302. The rear plate 305 is connected to the rod end of the third hydraulic cylinder 307, and the rodless end of the third hydraulic cylinder 307 is connected to the main platform 302.

[0031] The main winch 6 is used to move the muck truck 4, the auxiliary winch 7 is used to move the excavator transport platform 3, and the switch rail 9 is used to switch the external track 5 and the tunnel track 8, so that the excavator transport platform 3 and the muck truck 4 share a track. The switch rail 9 can allow the excavator transport platform 3 to pass downwards, and the muck truck 4 can pass upwards. The excavator transport platform 3 has an additional first hydraulic cylinder 303, which allows the main platform 302 to be angled, ensuring that the main platform 302 remains horizontal under different track angles, thereby reducing the risk of the excavator tipping over during transportation. At the same time, when the excavator is lowered from the excavator transport platform 3 to the bottom of the tunnel, the angles of the main platform 302 and the rear ramp 305 can be adjusted simultaneously, which is conducive to the smooth lowering of the excavator.

[0032] Furthermore, such as Figure 3 As shown, the main platform anti-fall device includes a telescopic outer tube 308 and a telescopic inner tube 309 that are slidably connected. The telescopic outer tube 308 is hinged to the main platform 302, and the telescopic inner tube 309 is hinged to the excavator transport support 301. Several anti-fall slots 3010 are evenly spaced on the telescopic inner tube 309, and anti-fall blocks 3011 are provided on the telescopic outer tube 308. A first return spring 3012 is provided between the anti-fall block 3011 and the telescopic outer tube 308. When the angle of the main platform 302 is adjusted, the first return spring 3012 is first reset to disengage the anti-fall block 3011 from the anti-fall slot 3010. The first hydraulic cylinder 302 then performs a telescopic movement, and the telescopic outer tube 308 and the telescopic inner tube 309 slide relative to each other. After the angle of the main platform 302 is adjusted, the first return spring 3012 is stretched to engage the anti-fall block 3011 with the corresponding anti-fall slot 3010, effectively improving the stability and safety of the excavator transport platform 3 during movement.

[0033] Furthermore, such as Figures 4 to 5As shown, both the excavator transport platform 3 and the muck truck 4 are equipped with braking systems. The braking system includes a rear wheel follow-up braking system, which includes a follow-up brake block 10 hinged to the rear wheel axle. The follow-up brake block 10 is equipped with a connecting rod 11, and the connecting rod 11 is equipped with a stop block 12. Both the excavator transport platform 3 and the muck truck 4 are equipped with a stop post 13 for limiting the stop block 12. Several track brake holes 14 are arranged at equal intervals on the external track 5 and the tunnel track 8. The follow-up brake block 10 moves along with the excavator transport platform 3 or the muck truck 4 during its ascent. When the excavator transport platform 3 or the muck truck 4 stops rising, the follow-up brake block 10 engages with the rail brake hole 14 to prevent the excavator transport platform 3 or the muck truck 4 from sliding down. When it is necessary to actively lower the excavator transport platform 3 or the muck truck 4, the follow-up brake block 10 is lifted up completely, and the stop block 12 on the connecting rod 11 passes over the stop post 13. After passing over the stop post 13, the follow-up brake block 10 is lowered so that the stop block 12 abuts against the stop post 13, preventing the follow-up brake block 10 from contacting the rail brake hole 14.

[0034] Furthermore, such as Figures 6 to 7 As shown, the braking system also includes a front wheel anti-rope breakage braking system, which includes an anti-rope breakage brake block 15 hinged to the front wheel axle. A wire rope pulley traction system 16 is also hinged to the front wheel axle. The anti-rope breakage brake block 15 is fixedly connected to the wire rope pulley traction system 16. The anti-rope breakage brake block 15 is connected to one end of a second return spring 17, and the other end of the second return spring 17 is fixed. Because the anti-rope breakage brake block 15 is connected to the wire rope pulley traction system 16 and the two rotate synchronously relative to the front wheel axle, it will give the wire rope pulley traction system 16 a certain tension before the wire rope breaks, thus ensuring that the second return spring 17 is always in a stretched state. The anti-rope breakage brake block 15 does not contact the track brake hole 14. Once the wire rope breaks, the wire rope pulley traction system 16 loses tension, the second return spring 17 returns to its original position, and the anti-rope breakage brake block 15 rotates and engages with the track brake hole 14, thereby working together with the rear wheel follow-up brake system to stop the excavator transport platform 3 or the muck truck 4 in time.

[0035] Furthermore, both the excavator transport platform 3 and the muck truck 4 are equipped with anti-tipping wheels 18, and anti-tipping grooves 19 are provided on the external track 5 and the tunnel track 8, with the anti-tipping wheels 18 positioned within the anti-tipping grooves 19. In the event of an impact or a broken wire rope, the excavator transport platform 3 or the muck truck 4 will tilt backward to a certain extent. At this time, the anti-tipping wheels 18 will abut against the edge of the anti-tipping grooves 19 to prevent the excavator transport platform 3 or the muck truck 4 from continuing to tilt backward, effectively avoiding personnel injury or equipment damage.

[0036] The aforementioned rear wheel follow-up braking system, front wheel anti-rope breakage braking system, and anti-tipping components ensure the stability of the excavator transport platform 3 and the muck truck 4 during transportation, thereby improving construction safety.

[0037] Furthermore, such as Figure 8 As shown, the slag discharge vehicle 4 is equipped with a slag discharge hopper 401, and a slag discharge port is provided at the bottom of the hopper, which is covered by a gate 20. The gate 20 is driven by a hydraulic cylinder to open the discharge port, and the slag falls directly into the slag-loading transport vehicle. This discharge method is safer and more efficient. In addition, the angle of the slag discharge vehicle's inlet is set at 18° to 25°, which can well balance the inclination angle of the slag during transportation and when the slag is placed horizontally, increasing the efficiency of slag discharge and transportation and reducing the risk of slag falling during transportation.

[0038] Example 2

[0039] After the tunnel anchor excavation is completed, the next stage of anchor plug construction begins. Conventional anchor plug construction materials are transported using a transport antenna system. This system is cumbersome to install, has blind spots in lifting, and is inefficient. This utility model's tunnel anchor muck removal system allows for the modification of the excavator transport platform 3, thereby meeting the needs of material transfer and lifting during anchor plug construction.

[0040] Specifically, after the tunnel anchor is excavated, the external structural components of the transportation system are removed, while the auxiliary winch 7, excavator transport platform 3, and rails are retained. A slewing crane is installed on the rear ramp 305 of the excavator transport platform 3, and a horizontal concrete hopper is placed on the main platform 302 of the excavator transport platform 3. The excavator transport platform 3 is used to transfer materials, and a concrete pouring placing hose is hoisted on the slewing crane. The concrete pouring placing hose is connected to the outlet of the horizontal concrete hopper to pour concrete into the anchor plug.

[0041] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.

Claims

1. A novel multi-functional muck removal system for tunnel anchors, comprising an external truss (1), a tunnel truss (2), an excavator transport platform (3), and a muck removal vehicle (4), wherein the external truss (1) is equipped with an external track (5), a main winch (6), and an auxiliary winch (7), and the tunnel truss (2) is equipped with a tunnel track (8), and a branch rail (9) is provided at the connection between the external track (5) and the tunnel track (8), characterized in that, The excavator transport platform (3) includes an excavator transport bracket (301), on which a main platform (302) is provided. The main platform (302) is connected to the rod end of the first hydraulic cylinder (303), and the rodless end of the first hydraulic cylinder (303) is connected to the excavator transport bracket (301). A main platform anti-fall device is provided between the main platform (302) and the excavator transport bracket (301). The main platform (302) is hinged to a front plate (304) and a rear plate (305) at the front and rear respectively. The front plate (304) is connected to the rod end of the second hydraulic cylinder (306), and the rodless end of the second hydraulic cylinder (306) is connected to the main platform (302). The rear plate (305) is connected to the rod end of the third hydraulic cylinder (307), and the rodless end of the third hydraulic cylinder (307) is connected to the main platform (302).

2. A novel multi-functional tunnel anchoring slagging system according to claim 1, wherein, The main platform anti-fall device includes a telescopic outer tube (308) and a telescopic inner tube (309) that are slidably connected. The telescopic outer tube (308) is hinged to the main platform (302), and the telescopic inner tube (309) is hinged to the excavator transport support (301). Several anti-fall slots (3010) are evenly spaced on the telescopic inner tube (309). Anti-fall blocks (3011) are provided on the telescopic outer tube (308). A first return spring (3012) is provided between the anti-fall blocks (3011) and the telescopic outer tube (308).

3. A new type of tunnel anchor multifunctional slagging system according to claim 1, characterized in that, Both the excavator transport platform (3) and the slag removal vehicle (4) are equipped with a braking system. The braking system includes a rear wheel follow-up braking system. The rear wheel follow-up braking system includes a follow-up brake block (10) hinged to the rear wheel axle. The follow-up brake block (10) is equipped with a connecting rod (11). The connecting rod (11) is equipped with a stop block (12). Both the excavator transport platform (3) and the slag removal vehicle (4) are equipped with a stop post (13) for limiting the stop block (12). Several track brake holes (14) are arranged at equal intervals on the external track (5) and the tunnel track (8).

4. A novel multi-functional tunnel anchoring slagging system according to claim 3, wherein, The braking system also includes a front wheel anti-rope breakage braking system, which includes an anti-rope breakage brake block (15) hinged to the front wheel axle. A wire rope pulley traction system (16) is also hinged to the front wheel axle. The anti-rope breakage brake block (15) is connected to the wire rope pulley traction system (16). The anti-rope breakage brake block (15) is connected to one end of a second return spring (17), and the other end of the second return spring (17) is fixed.

5. A new type of tunnel anchor multifunctional slagging system according to claim 1, characterized in that, The excavator transport platform (3) and the slag removal vehicle (4) are equipped with anti-overturning wheels (18), and anti-overturning grooves (19) are set on the external track (5) and the tunnel track (8), with the anti-overturning wheels (18) set inside the anti-overturning grooves (19).

6. A new type of tunnel anchor multifunctional slagging system according to claim 1, characterized in that, The slag discharge vehicle (4) is equipped with a slag discharge hopper (401), and a slag discharge port is provided at the bottom of the slag discharge hopper. The slag discharge port is covered by a gate (20).

7. A new type of tunnel anchor multifunctional slagging system according to claim 1, characterized in that, The feed inlet angle of the slag discharge vehicle (4) is 18° to 25°.

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