Self-propelled steel structure vehicle staggering platform for round tunnels with medium and small sections

Abstract

The utility model relates to a self-propelled steel structure vehicle staggering platform for round tunnels with medium and small sections. The self-propelled steel structure vehicle staggering platform comprises traction cross beams, walking mechanisms, jacking mechanisms, longitudinal stand columns, bridge floor transverse supporting beams, bridge floor longitudinal supporting beams and checkered plate bridge floors. The longitudinal stand columns, the bridge deck transverse supporting beams, the bridge deck longitudinal supporting beams and the checkered plate bridge deck form a supporting system. Wherein the bridge floor longitudinal supporting beams are vertically arranged on the bridge floor transverse supporting beams, the checkered plate bridge floor is arranged on the bridge floor longitudinal supporting beams in a connected mode, and the longitudinal stand columns are arranged below the bridge floor transverse supporting beams in a connected mode; the jacking mechanism and the walking mechanism are connected to the lower portion of the supporting system, the jacking mechanism is arranged on the jacking mechanism, and the traction cross beam is connected to one end of the supporting system; the method can effectively replace a traditional mode of drilling and blasting to excavate the wrong car hole.

Description

Technical Field

[0001] The present application relates to the technical field of tunnel construction, and in particular to a self-propelled steel structure vehicle staggering platform for a circular tunnel with a small or medium cross-section. Background Art

[0002] In the current underground tunnel projects in the highway, railway, water conservancy, mining and other industries, there is a need for mechanized construction in the construction stages of small and medium-section circular tunnel excavation and concrete lining. Since the closer to the bottom, the narrower the section, the problem of vehicles passing each other in a limited space is faced. The current traditional solution is to expand the passing tunnel, and excavate auxiliary caverns that meet the passing of mechanical equipment on the basis of the standard design section to solve the problem of vehicles passing each other during the construction period. After the construction of the project is completed, the passing tunnel is backfilled with concrete to the standard design section. According to the length of the tunnel, this plan selects a tunnel section with good geological surrounding rock conditions at intervals of 300 to 500 meters to arrange a passing tunnel. The excavation of the passing tunnel takes a long time, has high construction costs, great safety risks, and low labor rate and productivity, which is not conducive to standardized construction on the construction site. Utility Model Content

[0003] In order to solve or partially solve the problems existing in the related technology, the present application provides a self-propelled steel structure staggered platform for circular tunnels with small and medium sections, which can effectively replace the traditional method of drilling and blasting to excavate staggered tunnels, liberate labor, reduce construction costs, and improve the safety factor. The overall structure is stable, safe and reliable, and effectively speeds up the construction progress.

[0004] The present application discloses a self-propelled steel structure vehicle-passing platform for a circular tunnel with a small or medium cross section, which comprises: a traction beam, a walking mechanism, a jacking mechanism, a longitudinal column, a transverse support beam of a bridge deck, a longitudinal support beam of a bridge deck, and a patterned plate bridge deck;

[0005] Among them, the longitudinal columns, the transverse support beams of the bridge deck, the longitudinal support beams of the bridge deck and the patterned plate bridge deck constitute a support system; among them, the longitudinal support beams of the bridge deck are vertically arranged on the transverse support beams of the bridge deck, the patterned plate bridge deck is connected to the longitudinal support beams of the bridge deck, and the longitudinal columns are connected to the lower part of the transverse support beams of the bridge deck; the jacking mechanism and the walking mechanism are connected under the support system, the jacking mechanism is arranged on the jacking mechanism, and a traction beam is connected to one end of the support system.

[0006] Optionally, the traveling mechanism includes a wheeled traveling mechanism and a driving mechanism for driving the wheeled traveling mechanism forward or backward.

[0007] Optionally, auxiliary legs are provided at both ends of the bridge deck transverse support beam.

[0008] Optionally, an adjustment expander is connected to the traction beam.

[0009] Optionally, inclined front and rear approach bridges are arranged at both ends of the support system in the length direction.

[0010] Optionally, a reversing limit block is provided on the patterned plate bridge deck at the junction of the front and rear approach bridges and the support system.

[0011] The technical solution provided by this application may have the following beneficial effects:

[0012] This device actively raises the ground to make the patterned plate bridge deck close to the middle of the circular cross-section, so that its width can adapt to the vehicles passing each other. The whole device can be moved to any position where the vehicles need to pass each other in the whole tunnel through the walking mechanism. It is efficient and fast, and adopts a mechanical structure with a high degree of mechanization. This application effectively replaces the traditional drilling and blasting method of excavating the passing tunnel, liberates labor, reduces construction costs, improves the safety factor, and has a stable overall structure, which is safe and reliable, and effectively speeds up the construction progress.

[0013] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0015] Figure 1 It is a schematic diagram of the structure when the embodiment of the present application is raised;

[0016] Figure 2 1 is a schematic diagram of the structure of the lowering device shown in the embodiment of the present application;

[0017] Figure 3 is a side view of an embodiment of the present application;

[0018] Reference numerals:

[0019] 1- traction beam, 11- adjustment telescopic device, 2- walking mechanism, 21- lifting mechanism, 3- longitudinal column, 4- transverse support beam of bridge deck, 5- longitudinal support beam of bridge deck, 6- patterned plate bridge deck, 7- auxiliary outrigger, 8- front and rear approach bridge, 9- reverse limit block. DETAILED DESCRIPTION

[0020] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0021] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0022] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply 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 understood as a limitation on the present application.

[0023] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0024] In view of the above problems, an embodiment of the present application provides a self-propelled steel structure vehicle-passing platform for a circular tunnel with a small or medium cross-section. The technical solution of the embodiment of the present application is described in detail below in conjunction with the accompanying drawings.

[0025] like Figure 1 , Figure 2 and Figure 3 The self-propelled steel structure vehicle-passing platform for a circular tunnel with a small or medium cross-section shown in the figure comprises: a traction beam 1, a walking mechanism 2, a jacking mechanism 21, a longitudinal column 3, a bridge deck transverse support beam 4, a bridge deck longitudinal support beam 5, and a patterned plate bridge deck 6.

[0026] In the present application, the longitudinal columns 3, the transverse support beams 4, the longitudinal support beams 5 and the patterned bridge deck 6 form a plate-type support system; wherein, the longitudinal support beams 5 are vertically arranged on the transverse support beams 4 to form a frame, and the patterned bridge deck 6 is connected to the longitudinal support beams 5. When passing, the vehicle travels on the patterned bridge deck 6, and the transverse support beams 4 and the longitudinal support beams 5 provide sufficient support strength for the vehicle to travel on the support system. At the same time, in order to improve the support strength, the longitudinal columns (3) are connected to the lower part of the transverse support beams 4; in order to facilitate the transportation, adjustment and use of the entire equipment, the jacking mechanism 21 and the walking mechanism 2 are connected under the support system, and the traction beam 1 is connected at one end of the support system.

[0027] Thus, in the present application, the equipment moves through the walking mechanism 2 or assists other traction vehicles to connect the traction beam 1 to move to the position where the vehicles need to pass each other. During the movement, the jacking mechanism 21 lifts the entire equipment. Therefore, the jacking mechanism 21 adopts a hydraulic jacking device and is connected and arranged on the walking mechanism 2. Since the support system is lifted up, only the walking mechanism 2 is in contact with the ground. For the arc-shaped cross-section, the closer to the middle of the cross-section, the wider it is. Therefore, the equipment is convenient for transportation. After reaching the position where the vehicles need to pass each other, the jacking mechanism 21 retracts, and the support system is lowered and supported by the longitudinal column 3. In this way, the patterned plate bridge deck 6 lifted by the entire platform lifts the ground. When passing each other, the vehicle passes over the platform, widening the width and facilitating passing each other.

[0028] The present application adopts active lifting of the ground to make the patterned plate bridge deck close to the middle of the circular cross section, so that its width can adapt to the vehicles passing each other. The whole equipment can be moved to any position where the vehicles need to pass each other in the whole tunnel through the walking mechanism 2, which is efficient and fast, and adopts a mechanical structure with a high degree of mechanization. The present application effectively replaces the traditional drilling and blasting method of excavating the passing tunnel, liberates labor, reduces construction costs, improves the safety factor, and has a stable overall structure, which is safe and reliable, and effectively speeds up the construction progress.

[0029] In one embodiment, auxiliary legs 7 are provided at both ends of the transverse support beam 4 of the bridge deck. In the entire device, the longitudinal column 3 adopts double-pieced 22b I-beam (Q235b), the transverse support beam 4 of the bridge deck adopts 20b I-beam (Q345b), the longitudinal support beam 5 of the bridge deck adopts 12b I-beam Q345b, the patterned plate bridge deck 6 adopts δ8mm patterned plate (Q235b), and the auxiliary legs 7 adopt HW125 steel (Q235b). In this way, the device is organized by these steel materials, and the overall structure is stable, safe and reliable.

[0030] In one embodiment, in order to facilitate walking, the walking mechanism 2 adopts a wheeled walking mechanism for walking. At the same time, a driving mechanism that drives the wheeled walking mechanism forward or backward is connected to the wheeled walking mechanism so that the entire device can move forward and backward.

[0031] In one embodiment, since the equipment is made of steel and has a relatively large overall weight, when fine-tuning is required, an adjustment telescope 11 is connected to the traction beam 1. The adjustment telescope 11 uses a hydraulic telescopic device. In this way, the hydraulic telescopic device is used to push and pull strongly, and the auxiliary equipment can be adjusted when adjustment is required.

[0032] In one embodiment, in order to facilitate vehicles to enter the patterned plate bridge deck 6, inclined front and rear approach bridges 8 are arranged at both ends of the length direction of the support system. When in use, the inclined front and rear approach bridges 8 can be placed on the patterned plate bridge deck 6 in advance, and then taken down and placed after reaching the position.

[0033] In one embodiment, in order to prevent the vehicle from slipping, a reverse limit block 9 is provided on the patterned plate bridge deck 6 at the abutment between the front and rear approach bridges 8 and the support system. The front and rear approach bridges 8 and the reverse limit block 9, the front and rear approach bridges 8 use double 20b I-beam (Q345b) longitudinal beams and 6 20b I-beam (Q345b) columns of different lengths as the support system, the top surface of the approach bridge is fully paved with δ8mm patterned plates (Q235b), the slope of the approach bridge is not more than 10°, the construction vehicle enters the steel structure bridge deck through the front and rear approach bridges 8, and after completing the passing, it leaves the steel structure bridge deck through the front and rear approach bridges 8. During the passing stage, a reverse limit block 9 is provided at the end of the approach bridge and the steel structure bridge deck to prevent the vehicle from slipping, which can safely, reliably, simply and efficiently complete the rapid passing of the effective space of the small and medium-section circular tunnel.

[0034] Finally, it should be noted that, in this article, relationships such as first and second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms include, include or any other variations are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0036] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A self-propelled steel structure vehicle-passing platform for a circular tunnel with a small or medium section, characterized in that: include: A traction beam (1), a walking mechanism (2), a lifting mechanism (21), a longitudinal column (3), a bridge deck transverse support beam (4), a bridge deck longitudinal support beam (5), and a patterned plate bridge deck (6); The longitudinal columns (3), the transverse support beams (4) of the bridge deck, the longitudinal support beams (5) of the bridge deck and the patterned plate bridge deck (6) constitute a support system; the longitudinal support beams (5) of the bridge deck are vertically arranged on the transverse support beams (4) of the bridge deck, the patterned plate bridge deck (6) is connected to the longitudinal support beams (5) of the bridge deck, and the longitudinal columns (3) are connected to the lower part of the transverse support beams (4) of the bridge deck; the lifting mechanism (21) and the walking mechanism (2) are connected under the support system, the lifting mechanism (21) is arranged on the lifting mechanism (21), and the traction beam (1) is connected to one end of the support system.

2. The self-propelled steel structure vehicle-passing platform for circular tunnels with small and medium cross-sections according to claim 1 is characterized by: The walking mechanism (2) comprises a wheeled walking mechanism and a driving mechanism for driving the wheeled walking mechanism forward or backward.

3. The self-propelled steel structure vehicle-passing platform for circular tunnels with small and medium sections according to claim 1 is characterized by: Auxiliary supporting legs (7) are arranged at both ends of the bridge deck transverse supporting beam (4).

4. The self-propelled steel structure vehicle-passing platform for circular tunnels with small and medium sections according to claim 1 is characterized by: The traction crossbeam (1) is connected to an adjustment expander (11).

5. The self-propelled steel structure vehicle-passing platform for circular tunnels with small and medium sections according to claim 1 is characterized by: Inclined front and rear approach bridges (8) are arranged at both ends of the support system in the length direction.

6. The self-propelled steel structure vehicle-passing platform for circular tunnels with small and medium sections according to claim 5, characterized in that: A reverse limit stopper (9) is provided on the patterned bridge deck (6) at the abutment between the front and rear approach bridges (8) and the support system.

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