CN215718782U

CN215718782U - High-efficient tunnel operation bridge

Info

Publication number: CN215718782U
Application number: CN202121981869.0U
Authority: CN
Inventors: 张维颂; 郑怀臣; 程波; 李佑福; 毛成宝
Original assignee: Hunan Wuxin Formwork Co Ltd
Current assignee: Hunan Wuxin Formwork Co Ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-02-01
Anticipated expiration: 2031-08-20

Abstract

The utility model discloses a high-efficiency tunnel operation bridge which comprises a movable base, a main bridge and an approach bridge, wherein the main bridge and the approach bridge are obliquely arranged, the main bridge is hinged with the movable base and is provided with a main bridge swinging driving piece in a matching mode, and the approach bridge is connected with the movable base. The utility model has the advantages of simple structure, convenient use, being beneficial to improving the construction efficiency and the safety, and the like.

Description

High-efficient tunnel operation bridge

Technical Field

The utility model relates to the technical field of underground engineering construction equipment, in particular to an efficient tunnel operation bridge.

Background

In the construction development of underground engineering, the new Austrian construction method in the mining method is a common construction method in mountain tunnels, and the method takes drilling and blasting as excavation means, takes surrounding rocks and structures as a support design theory and adopts a composite lining structure to form a process line with the foundations of drilling and blasting excavation, mucking transportation, primary support, water prevention and drainage, secondary die-building lining, auxiliary construction and the like. The step excavation is the most adopted excavation method, is not only suitable for II-grade and III-grade surrounding rocks with good geology, but also suitable for IV-grade and V-grade surrounding rocks with poor geological conditions, is relatively safe in step excavation, and is also applied to subsection excavation construction in various main body construction methods. The step excavation method has certain construction space and speed, and is also favorable for the stability of an excavation surface, particularly, the operation of the lower section after the upper excavation support is safer, but the operation of the upper part and the lower part of the step excavation is interfered, and the mechanical equipment needs to move up and down the steps with certain gradient. The existence of the steps also influences the mucking of the tunnel to a certain extent, and the strength of mucking capacity determines the overall construction speed of the tunnel to a great extent. According to the design requirements of the tunnel, pre-support such as an advanced anchor rod, grouting and a pipe shed is required, primary support including anchor rods, steel arches, sprayed concrete and the like is required, and the support measures need to be carried out by means of a construction platform and reasonable organization construction procedures. Current blasting, strut construction use simple and easy operation platform more, artifical transport, artifical the strut, intensity of labour is big, and the engineering time is long, and the safety risk is big, and construction quality and progress all can not obtain the assurance.

In addition, mechanical equipment is widely applied to tunnel construction, such as a drill jumbo, an arch center mounting operation vehicle, a wet spraying machine and the like, which are used in drilling, blasting, excavating and primary supporting procedures, and then are further matched with a digging machine, a loading machine, a transport vehicle and the like for carrying out mucking transportation, but the overturning prevention of the mechanical equipment and the quick escape of operators are always difficult. The layout is relatively easily expanded to multiple equipment in full section excavation construction, but the step excavation is well equipped with the lower step, and the equipment interference is more in safe step distance within range, and construction safety risk is great, and construction equipment function is single relatively, does not have the equipment can integrate multiple functions and is applied to in tunnel face excavation and the process of strutting, and multiple function single's equipment has increased construction cost.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide the tunnel operation bridge which is simple in structure, convenient to use and beneficial to improving the construction efficiency and the safety.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a high-efficient tunnel operation bridge, is including moving base and main bridge and the approach bridge that the slope was arranged, the main bridge with it articulates and sets main bridge swing driving piece to move the base, the approach bridge with it links to each other to move the base.

As a further improvement of the above technical solution: and an operation platform is arranged at one end of the main bridge, which is far away from the movable base.

As a further improvement of the above technical solution: the working platform is provided with an arch mounting rack, a drilling device and/or a positioning device.

As a further improvement of the above technical solution: the arch frame mounting rack is hinged with the operation platform; the drilling device is connected with the operation platform in a rotating and/or sliding mode.

As a further improvement of the above technical solution: the operation platform is hinged with the main bridge and is provided with a platform swinging driving piece.

As a further improvement of the above technical solution: the edge of the operation platform is provided with a foldable or detachable guardrail.

As a further improvement of the above technical solution: and anti-skidding pieces are paved on the surfaces of the main bridge and the approach bridge.

As a further improvement of the above technical solution: the movable base comprises a moving mechanism and a support rotatably connected with the moving mechanism, telescopic supporting legs are arranged on the support, and the main axle swinging driving piece is arranged on the support.

As a further improvement of the above technical solution: the moving mechanism is a crawler mechanism or a tire type mechanism or a walking type mechanism.

As a further improvement of the above technical solution: the approach bridge is hinged with the movable base and is provided with an approach bridge swinging driving piece.

Compared with the prior art, the utility model has the advantages that: the main bridge can be overlapped on steps with different heights through vertical swing, the main bridge which is obliquely arranged can replace a manually excavated muck slope, and the main bridge and the approach bridge can be driven to advance along the tunnel along with continuous tunneling of the tunnel and continuous forward movement of the steps by the aid of the movable base, so that the existing manual slope trimming and multiple excavation are changed, uncontrollable factors of slope excavation are reduced, vehicles, materials and personnel can conveniently go up and down the steps, the main bridge is used for replacing the muck slope, the length of the slope can be reduced, the safety step length is further reduced, safety of tunnel excavation construction is guaranteed, the structure is simple, the use is convenient, the construction efficiency is improved, and the construction cost is reduced.

Drawings

Fig. 1 is a schematic perspective view of the high-efficiency tunnel working bridge according to the present invention.

Fig. 2 is a schematic perspective view of the guardrail and arch mount of the present invention as deployed.

Fig. 3 is a schematic front view of the high-efficiency tunnel working bridge of the present invention.

Fig. 4 is a schematic top view of the high efficiency tunnel working bridge of the present invention.

Fig. 5 is a front view of the present invention in drilling construction.

Fig. 6 is a front view of the arch of the present invention when installed.

Fig. 7 is a partially enlarged view of fig. 3.

The reference numerals in the figures denote: 1. moving the base; 11. a moving mechanism; 12. a support; 13. a telescopic leg; 21. a main bridge; 22. bridge approach; 3. a main axle swing drive; 4. the approach bridge swings the driving piece; 5. an operation platform; 51. a platform swing drive; 52. a guardrail; 6. an arch frame mounting rack; 61. an arch frame; 7. an anti-slip member; 8. a drilling device; 9. and a positioning device.

Detailed Description

The utility model is described in further detail below with reference to the figures and specific examples of the specification.

Fig. 1 to 7 show an embodiment of the high-efficiency tunnel working bridge of the present invention, which includes a mobile base 1, and a main bridge 21 and an approach bridge 22 that are obliquely arranged, wherein the main bridge 21 is hinged to the mobile base 1 and provided with a main bridge swinging driving member 3, and the approach bridge 22 is connected to the mobile base 1. The main bridge 21 and the approach bridge 22 may be, for example, box girder structures, which are firm, reliable and strong in bearing capacity; the main axle swinging driving member 3 can be, for example, an oil cylinder, two ends of the oil cylinder are respectively hinged with the main axle 21 and the movable base 1, and the main axle 21 swings up and down through the stretching of the oil cylinder.

The main bridge 21 can be lapped on steps with different heights through up-down swing, the approach bridge 22 is convenient for mechanical equipment to transition between the main bridge 21 and the ground, the main bridge 21 and the approach bridge 22 which are obliquely arranged can replace a muck slope of artificial excavation, the main bridge 21 and the approach bridge 22 can be driven to advance along with continuous tunneling of a tunnel and continuous forward movement of the steps by the aid of the movable base 1 (the tunneling direction of the tunnel is taken as the front), the existing repair and repeated excavation of the artificial slope are changed, uncontrollable factors of slope excavation are reduced, great convenience is brought to vehicles, goods and personnel to go up and down the steps, the main bridge 21 and the approach bridge 22 are used for replacing the muck slope, the length of the slope can be reduced, safe step length is further reduced, tunnel excavation construction safety is guaranteed, the structure is simple, use is convenient, and construction efficiency is improved The construction cost is reduced.

Further, in the present embodiment, the end of the main bridge 21 away from the mobile base 1 (i.e. the end overlapping the tunnel step) is provided with the work platform 5. When the main bridge 21 swings upwards to a certain height, the main bridge leaves the step, the operation bridge integrally moves a certain distance to the excavation face at the same time, and operators can perform operations on the operation platform 5, such as tunnel excavation finishing, arch 61 installation, supporting operation, concrete spraying, excavation blast hole drilling and the like. As a preferred embodiment, the working platform 5 is hinged to the main bridge 21 and is provided with a platform swing driving member 51, the platform swing driving member 51 may be, for example, an oil cylinder, two ends of the oil cylinder are respectively hinged to the main bridge 21 and the working platform 5, and the swing of the working platform 5 is realized by the extension and contraction of the oil cylinder, so that the angle of the working platform 5 is conveniently adjusted, and the use is more convenient.

Further, in the present embodiment, the working platform 5 is provided with a lifting arch mounting frame 6 (for example, lifting is achieved by extending and retracting an oil cylinder), a drilling device 8, and a positioning device 9 (for example, a locating light beam, etc.), but in other embodiments, one or two of the devices may be selectively installed according to the construction requirement. Taking the installation of the arch 61 as an example, the installation of the arch 61 is mainly carried out by means of a simple rack or manual installation, the simple rack is carried by an excavator to go up and down the steps, the labor intensity of manually installing the arch 61 is higher, and reasonable matching and expansion of step excavation cannot be realized. This work platform 5 and the last bow member mounting bracket 6 fine solution artifical do not have the platform, simple and easy rack accounts for the space, and the bow member installation car accounts for the problem of construction position and unable expansion, can realize the integral erection of upper stairs or well upper portion step simultaneously. Particularly, when needing to carry out bow member 61 installation, can place bow member 61 on bow member mounting bracket 6, rethread main bridge 21 lifts to the upper ledge bow member mounted position, drives bow member 61 lift adjustment through bow member mounting bracket 6 to accomplish the installation of bow member 61 on work platform 5, convenient to use. The drilling device 8 can be used for constructing anchor rod holes or gun hole holes and the like, and the positioning device 9 is convenient for operators to accurately position the operation area in the tunnel.

Furthermore, the arch mounting rack 6 is hinged with the operation platform 5, when the arch 61 does not need to be mounted, the arch mounting rack 6 swings downwards to be in a horizontal state and is folded on the operation platform 5, and when the arch 61 needs to be mounted, the arch mounting rack 6 swings upwards to be in a vertical state; the drilling device 8 is rotatably connected with the operation platform 5, or the drilling device 8 can rotate relative to the operation platform 5, the angle of the drilling boom can be adjusted, drilling towards the periphery of the tunnel is realized, and the drilling device can rotate in a rotating mode, a slewing bearing mode and the like; or can be a sliding connection, for example, to enable the drilling device 8 to move back and forth on the work platform 5; or the movable platform can move on the operation platform 5 and rotate relative to the operation platform 5, so that the use is more flexible and convenient.

As a preferred embodiment, the edge of the working platform 5 is provided with a foldable guardrail 52, and when the guardrail 52 is unfolded, the guardrail can provide protection for the operator to prevent falling; when a mechanical device such as a vehicle needs to pass through the main bridge 21, the guardrail 52 is folded and folded on the working platform 5, and does not interfere with the passing of the vehicle. Of course, in other embodiments, the guard rail 52 may be a detachable structure, and is mounted on the work platform 5 when protection is required; when the vehicle or the like needs to pass, the vehicle or the like is detached from the work platform 5.

In a preferred embodiment, the main bridge 21 and the approach bridge 22 are paved with anti-slip members 7, such as friction pads, transversely arranged steel bars, and the like, to increase friction force and prevent mechanical equipment from slipping on the obliquely arranged main bridge 21 and the approach bridge 22, thereby being more reliable.

Further, in this embodiment, the movable base 1 includes a moving mechanism 11 and a support 12 (for example, the support can be rotatably connected through a pivoting support or the like) rotatably connected with the moving mechanism 11, the support 12 is provided with a telescopic leg 13 (for example, the support can be telescopic through a hydraulic cylinder or the like), and the main axle swinging driving member 3 is provided on the support 12. When the working bridge passes through the vehicle, the telescopic supporting legs 13 on the support 12 extend out, the moving mechanism 11 rises and is not contacted with the ground, and the telescopic supporting legs 13 bear the load, so that the stability and the reliability are better; when the operation bridge needs to move back and forth, the telescopic supporting legs 13 retract and are not in contact with the ground so as to reduce the resistance during walking, and the moving mechanism 11 drives the main bridge 21 to move back and forth; if the operation bridge needs to move left and right in the tunnel (or along the width direction of the tunnel), the telescopic supporting legs 13 extend out, the moving mechanism 11 rises and is not in contact with the ground, then the moving mechanism 11 rotates 90 degrees relative to the support 12, finally the telescopic supporting legs 13 retract and are not in contact with the ground, the moving mechanism 11 is in contact with the ground, the moving mechanism 11 can drive the main bridge 21 and the approach bridge 22 to move left and right, the operation bridge is very convenient and flexible to use in the limited space of the tunnel, and other machines are not needed.

In a preferred embodiment, the moving mechanism 11 is a crawler mechanism. The crawler mechanism has large contact area with the ground, strong bearing capacity and good friction, and is suitable for various rugged grounds and softer grounds. Of course, in other embodiments, the moving mechanism 11 may be a tire type mechanism or a walking type mechanism.

In the present embodiment, the approach bridge 22 is hinged to the mobile base 1 and is provided with an approach bridge swing drive 4. The approach bridge 22 can be driven to swing up and down through the approach bridge swing driving piece 4, so that the inclination angle of the approach bridge 22 is adjusted, steps with different heights in the tunnel are better adapted, and the tunnel is more convenient to use. The approach bridge swing driving member 4 can be, for example, an oil cylinder, two ends of the oil cylinder are respectively hinged with the approach bridge 22 and the movable base 1, the up-and-down swing of the approach bridge 22 is realized through the extension and retraction of the oil cylinder, and the structure is simple and reliable.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the utility model, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.

Claims

1. The utility model provides a high-efficient tunnel operation bridge which characterized in that: including moving base (1) and main bridge (21) and approach bridge (22) that the slope was arranged, main bridge (21) with moving base (1) is articulated and is equipped with main bridge swing driving piece (3), approach bridge (22) with moving base (1) links to each other.

2. A high efficiency tunnel working bridge according to claim 1, wherein: and an operation platform (5) is arranged at one end of the main bridge (21) far away from the movable base (1).

3. A high efficiency tunnel working bridge according to claim 2, wherein: and an arch frame mounting rack (6), a drilling device (8) and/or a positioning device (9) are/is arranged on the operation platform (5).

4. A high efficiency tunnel working bridge according to claim 3, wherein: the arch frame mounting rack (6) is hinged with the operation platform (5); the drilling device (8) is connected with the operation platform (5) in a rotating and/or sliding way.

5. A high efficiency tunnel working bridge according to claim 2, wherein: the work platform (5) is articulated with the main bridge (21) and is provided with a platform swing driving element (51).

6. A high efficiency tunnel working bridge according to claim 2, wherein: the edge of the working platform (5) is provided with a foldable or foldable guardrail (52).

7. A high efficiency tunnel working bridge according to claim 1, wherein: anti-skidding pieces (7) are laid on the surfaces of the main bridge (21) and the approach bridge (22).

8. A high efficiency tunnel working bridge according to any one of claims 1 to 7, wherein: remove base (1) and include moving mechanism (11) and rotate support (12) of being connected with moving mechanism (11), be equipped with flexible landing leg (13) on support (12), main bridge swing driving piece (3) are located on support (12).

9. A high efficiency tunnel working bridge according to claim 8, wherein: the moving mechanism (11) is a crawler mechanism or a tire type mechanism or a walking type mechanism.

10. A high efficiency tunnel working bridge according to any one of claims 1 to 7, wherein: the approach bridge (22) is hinged with the movable base (1) and is provided with an approach bridge swinging driving piece (4).