Tunnel construction equipment with escape function

Abstract

The utility model discloses tunnel construction equipment with an escape function, which comprises a trestle and an inverted arch template, the inverted arch template is provided with a first escape passage, and the first escape passage is positioned below the trestle. The first escape passage is arranged below the trestle, so that operators below the trestle can escape quickly, escape time is saved, safety is high, and the first escape passage does not affect vehicles and equipment to pass through the trestle above the first escape passage; the first escape channel is integrated on the inverted arch formwork, the space between the inverted arch formwork and the trestle is fully utilized, the structure is simple and compact, the first escape channel can be synchronously transferred along with the inverted arch formwork, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the field of tunnel construction equipment, in particular to a tunnel construction equipment with an escape function. Background Art

[0002] In tunnel construction, the rock mass grades suitable for mechanical excavation are generally grade IV, grade V, and grade VI. The geology in these sections is weak and prone to instability, and accidents such as cave - ins are likely to occur during excavation and initial support operations, which pose a hazard to the lives of construction workers and also cause difficulties to tunnel construction. The existing escape passages usually adopt steel pipes and are set on the trestle or on the left and right sides of the trestle, which is convenient for the personnel above the trestle to escape, but it is not convenient for the personnel below the trestle to escape. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a tunnel construction equipment with an escape function, which has a simple and compact structure, is convenient for transportation, enables the construction workers below the trestle to escape, and has high safety.

[0004] To solve the above - mentioned technical problem, the utility model adopts the following technical solutions:

[0005] A tunnel construction equipment with an escape function includes a trestle and an invert formwork. A first escape passage is provided on the invert formwork, and the first escape passage is located below the trestle.

[0006] As a further improvement of the above - mentioned technical solution: the first escape passage is arranged in a box girder.

[0007] As a further improvement of the above - mentioned technical solution: at least one escape entrance is provided on the side surface of the box girder.

[0008] As a further improvement of the above - mentioned technical solution: the rear end of the invert formwork is connected with a central drainage ditch formwork. A cover plate is provided on the upper part of the central drainage ditch formwork, and the cover plate and the central drainage ditch formwork cooperate to form a second escape passage, and the first escape passage is docked with the second escape passage.

[0009] As a further improvement of the above - mentioned technical solution: a telescopable escape pipe is provided in the first escape passage.

[0010] As a further improvement of the above - mentioned technical solution: a guiding structure is provided between the first escape passage and the escape pipe.

[0011] As a further improvement of the above - mentioned technical solution: the trestle and the invert formwork are detachably connected.

[0012] As a further improvement of the above technical solution: longitudinal tracks are provided on both sides of the trestle, a moving trolley is provided on the longitudinal tracks, and the moving trolley is detachably connected to the invert formwork.

[0013] As a further improvement of the above technical solution: the trestle includes a main bridge and approach bridges respectively hinged to the front and rear ends of the main bridge.

[0014] As a further improvement of the above technical solution: a traveling member is provided at the rear end of the main bridge, and a support leg is provided at the front end of the main bridge.

[0015] Compared with the prior art, the advantages of the present utility model are as follows:

[0016] The tunnel construction equipment with an escape function of the present utility model is provided with a first escape passage under the trestle, so that the operators located under the trestle can also quickly escape, saving escape time, with high safety, and the first escape passage will not affect the passage of vehicles and equipment on the trestle above it; the first escape passage is integrated on the invert formwork, making full use of the space between the invert formwork and the trestle, with a simple and compact structure, and can also be transported synchronously with the invert formwork, which is convenient to use. Description of the Drawings

[0017] Figure 1 is a side view of the tunnel construction equipment with an escape function of the present utility model in the retracted state of the escape pipe.

[0018] Figure 2 is a side view of the tunnel construction equipment with an escape function of the present utility model in the extended state of the escape pipe.

[0019] Figure 3 is Figure 2 the cross-sectional view taken along A-A in

[0020] Figure 4 is Figure 2 the cross-sectional view taken along B-B in

[0021] Each label in the figure represents:

[0022] 1, trestle; 11, main bridge; 12, approach bridge; 13, traveling member; 14, support leg; 15, longitudinal track; 16, moving trolley; 2, invert formwork; 3, first escape passage; 4, box girder; 41, escape entrance; 5, central drainage ditch formwork; 51, cover plate; 52, second escape passage; 6, escape pipe. Detailed Description of the Embodiment

[0023] The following will further describe the present utility model in detail with reference to the drawings of the specification and specific embodiments.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0025] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0026] In the present utility model, unless otherwise clearly specified and defined, the terms "assembled", "connected", "joined", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] As Figures 1 to 4 shown, the tunnel construction equipment with an escape function in this embodiment includes a trestle 1 and an invert formwork 2. A first escape passage 3 is provided on the invert formwork 2, and the first escape passage 3 is located below the trestle 1.

[0028] The tunnel construction equipment of this embodiment enables the operators located below the trestle 1 to quickly escape by setting the first escape passage 3 below the trestle 1, saving escape time and having high safety. Moreover, the first escape passage 3 does not affect the passage of vehicles and equipment on the trestle 1 above it; the first escape passage 3 is integrated on the invert formwork 2, making full use of the space between the invert formwork 2 and the trestle 1, with a simple and compact structure, and it can also be transported synchronously with the invert formwork 2, which is convenient to use.

[0029] Furthermore, in this embodiment, the first escape passage 3 is arranged inside a box girder 4, or in other words, the internal space of the box girder 4 is used as the first escape passage 3. The box girder 4 has high structural strength, is not easily damaged or deformed, and can provide good protection. Specifically, see Figure 3 Preferably, the cross-section of the box girder 4 is rectangular, which is convenient for the operators to pass through.

[0030] Furthermore, in this embodiment, an escape entrance 41 is provided on the side of the box girder 4, facilitating the operators to quickly enter the first escape passage 3 from the first escape entrance 41. Preferably, the first escape passage 3 is located at the rear end of the box girder 4, arranged close to the second escape passage 52, facilitating the operators to quickly transfer to the second escape passage 52. Of course, in other embodiments, multiple escape entrances 41 can also be provided, and the operators can choose a nearby escape entrance 41 to enter the first escape passage 3 for escape, saving escape time.

[0031] Further, in this embodiment, a central drainage ditch formwork 5 is connected to the rear end of the invert formwork 2. A cover plate 51 is provided on the upper part of the central drainage ditch formwork 5. The cover plate 51 and the central drainage ditch formwork 5 cooperate to form a second escape passage 52, and the first escape passage 3 is docked with the second escape passage 52. By setting the cover plate 51 on the central drainage ditch formwork 5 to form the second escape passage 52, it is convenient for the operators to transfer to the safe area at the rear end of the trestle 1 by means of the first escape passage 3 and the second escape passage 52, and the modification to the existing central drainage ditch formwork 5 is small and the modification cost is low. Among them, the front is the tunneling direction of the tunnel, and the rear is the entrance direction of the tunnel.

[0032] Further, in this embodiment, an escape pipe 6 that can be telescopically extended and retracted is provided in the first escape passage 3. When there are also operators at the front end of the trestle 1, the escape pipe 6 extends outside the first escape passage 3, facilitating the operators at the front end to quickly enter the inside of the first escape passage 3. When there are no operators at the front end, the escape pipe 6 retracts into the first escape passage 3, avoiding occupying the front-end operation space, and the structure is simple and reasonable. Preferably, the escape pipe 6 can be moved back and forth through an oil cylinder, a rack and pinion mechanism or a sprocket and chain mechanism, etc.

[0033] Further, in this embodiment, a guiding structure (not shown in the figure, such as a guide rail and a guiding roller, a guide rail and a slider, etc.) is provided between the first escape passage 3 and the escape pipe 6. Through the guiding structure, the escape pipe 6 can be accurately positioned in the box girder 4, avoiding deviation, and at the same time reducing the resistance of the escape pipe 6 to extend and retract back and forth.

[0034] As a preferred embodiment, the trestle 1 and the invert formwork 2 are detachably connected. When being transferred to the next construction section, the trestle 1 is connected to the invert formwork 2, and the invert formwork 2, the central drainage ditch formwork 5, the first escape passage 3 and the second escape passage 52 can all be transferred together with the trestle 1, making the transfer more convenient.

[0035] Furthermore, in this embodiment, longitudinal tracks 15 are provided on both sides of the trestle 1, and a moving trolley 16 is provided on the longitudinal tracks 15, and the moving trolley 16 is detachably connected to the inverted arch formwork 2. After the tunnel construction equipment completes the construction of the current construction section, the moving trolley 16 is connected to the inverted arch formwork 2, and the inverted arch formwork 2 and the central ditch formwork 5 can be moved to the next construction section, which is simple to operate and has high transfer efficiency.

[0036] Furthermore, in this embodiment, the trestle 1 includes a main bridge 11 and approach bridges 12 respectively hinged to the front and rear ends of the main bridge 11. During construction, the approach bridges 12 are arranged to be tilted downward and in contact with the ground, so that vehicles and personnel can get on and off the main bridge 11 with the help of the approach bridges 12. During transportation, the approach bridges 12 are swung upward and away from the ground, which is convenient for transportation.

[0037] Furthermore, in this embodiment, a walking member 13 is provided at the rear end of the main bridge 11, and a support leg 14 is provided at the front end of the main bridge 11. The walking member 13 is provided to facilitate the transportation of the trestle. In this embodiment, the walking member 13 is a walking wheel, which is simple and easy to use; the support leg 14 is provided to provide support for the main bridge 11, and the structure is firm.

[0038] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as above in the preferred embodiment, it is not used to limit the utility model. Any technician familiar with the field can make many possible changes and modifications to the technical solution of the utility model by using the methods and technical contents disclosed above without departing from the spirit and technical solution of the utility model, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical solution of the utility model, still fall within the scope of protection of the technical solution of the utility model.

Claims

1. A tunnel construction device with an escape function, comprising a trestle (1) and an invert formwork (2), characterized in that: The inverted arch template (2) is provided with a first escape passage (3), and the first escape passage (3) is located below the trestle (1).

2. The tunnel construction equipment with escape function according to claim 1, characterized in that: The first escape passage (3) is arranged in a box beam (4).

3. The tunnel construction equipment with escape function according to claim 2 is characterized in that: At least one escape entrance (41) is provided on the side of the box beam (4).

4. The tunnel construction equipment with escape function according to claim 1, characterized in that: The rear end of the inverted arch template (2) is connected to a central ditch template (5), and a cover plate (51) is provided on the upper part of the central ditch template (5). The cover plate (51) cooperates with the central ditch template (5) to form a second escape passage (52), and the first escape passage (3) is butted with the second escape passage (52).

5. The tunnel construction equipment with escape function according to claim 1, characterized in that: An escape pipe (6) that can be telescoped forwards and backwards is provided in the first escape passage (3).

6. The tunnel construction equipment with escape function according to claim 5, characterized in that: A guide structure is provided between the first escape passage (3) and the escape pipe (6).

7. The tunnel construction equipment with escape function according to any one of claims 1 to 6, characterized in that: The trestle (1) is detachably connected to the inverted arch formwork (2).

8. The tunnel construction equipment with escape function according to claim 7, characterized in that: Longitudinal tracks (15) are provided on both sides of the trestle (1), and a moving trolley (16) is provided on the longitudinal tracks (15). The moving trolley (16) is detachably connected to the inverted arch formwork (2).

9. The tunnel construction equipment with escape function according to any one of claims 1 to 6, characterized in that: The trestle (1) comprises a main bridge (11) and approach bridges (12) respectively hinged to the front and rear ends of the main bridge (11).

10. The tunnel construction equipment with escape function according to claim 9, characterized in that: A walking member (13) is provided at the rear end of the main bridge (11), and a supporting leg (14) is provided at the front end of the main bridge (11).

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