A temporary support device for replacing integral roadbed

Abstract

The present invention discloses a temporary support device for replacing an integral track bed, which is characterized in that: the temporary support device for replacing an integral track bed is used to temporarily support the rails between adjacent existing sleepers before dismantling the existing integral track bed; it includes a buckle fitting and a steel pier; the steel pier is an upper and lower assembly structure, including an upper component and a lower component, the buckle fitting is installed above the upper component, and the lower part of the lower component is connected to the lower foundation; the upper component and the lower component can be vertically adjusted and fixed. The temporary support device of the present invention has sufficient strength and stability, and its overall weight is relatively light, which meets the requirements of manual handling in tunnel construction. At the same time, during the reconstruction of the integral track bed, it is convenient to adjust and position the rails, ensure the smoothness of the line, and is convenient to disassemble and recycle, which significantly ensures the safety of line operation during the reconstruction and reduces the construction cost.

Description

Technical Field

[0001] The invention belongs to the technical field of ballastless track in rail transportation, and specifically relates to a temporary support device for replacing an integral track bed, which ensures that the line operation is not interrupted during the removal and replacement of the integral track bed. Background Art

[0002] High-speed railways and urban rail transit generally use an integral roadbed structure. When ballastless tracks become defective during use, the design of ballastless track reconstruction in urban rail transit requires the demolition of the existing integral roadbed and replacement with a new roadbed structure. During the track demolition, it is necessary to ensure uninterrupted operation of the line and the safety of train operations, and reduce the adverse effects on transportation capacity and traffic organization during the reconstruction period.

[0003] like Figure 1-2 As shown, patent application CN 104499384 A discloses a temporary transition steel sleeper track structure that can achieve eccentricity and superelevation adjustment. However, the structure is complex in design, heavy, expensive, and inconvenient to adjust on site, which will have an adverse effect on the on-site construction accuracy and quality; the steel sleeper can only adapt to circular tunnel sections, and has poor adaptability to rectangular tunnel sections. Summary of the invention

[0004] In response to at least one of the above defects or improvement needs in the prior art, the present invention provides a temporary support device for replacing an integral roadbed, which has sufficient strength and stability and a relatively light overall mass, meeting the requirements of manual handling during construction in a tunnel. At the same time, during the transformation of the integral roadbed, the rails can be easily adjusted and positioned to ensure the smoothness of the line. The device is easy to disassemble and can be recycled, thereby significantly ensuring the safety of line operation during the transformation and reducing construction costs.

[0005] To achieve the above-mentioned object, according to one aspect of the present invention, a temporary support device for replacing an integral track bed is provided, characterized in that: the temporary support device for replacing an integral track bed is used to temporarily support under the rails between adjacent existing sleepers before dismantling the existing integral track bed;

[0006] Includes buckle fittings and steel buttresses;

[0007] The steel pier is an upper and lower assembly structure, including an upper component and a lower component. The buckle fitting is installed above the upper component, and the lower component is connected to the lower foundation below; the upper component and the lower component can be vertically adjusted and fixed.

[0008] Preferably, the upper assembly comprises an upper connecting member and an upper top plate;

[0009] The lower assembly includes a lower connecting member and a lower base plate;

[0010] The buckle fitting is fixedly connected to the upper top plate, and the lower bottom plate is fixedly connected to the lower foundation;

[0011] The upper connecting piece and the lower connecting piece match in shape and can be adjusted and fixed vertically.

[0012] Preferably, the upper connecting member and the lower connecting member are sleeve structures which are sleeved together.

[0013] Preferably, the sleeves of the upper connecting member and the lower connecting member are rectangular sleeves.

[0014] Preferably, the sleeves of the upper connecting member and the lower connecting member are circular sleeves.

[0015] Preferably, the upper connecting member is sleeved inside or outside the lower connecting member.

[0016] Preferably, bolt holes are provided on the upper top plate and on the periphery of the upper connecting piece, and are fixedly connected to the fastener by anchor bolts.

[0017] Preferably, bolt holes are provided on the lower base plate and on the periphery of the lower connecting piece, and are fixedly connected to the lower foundation by anchor bolts.

[0018] Preferably, the fastener accessories include an iron plate and an elastic bar; the iron plate is fixed to the upper top plate, and the steel rail and the iron plate are connected and fixed by the elastic bar.

[0019] Preferably, the buckle fitting further includes a rubber pad, which is arranged between the iron pad and the upper top plate.

[0020] The above-mentioned preferred technical features can be combined with each other as long as they do not conflict with each other.

[0021] In general, the above technical solution conceived by the present invention has the following beneficial effects compared with the prior art:

[0022] 1. The support system has a simple structure, which only includes the upper and lower assembled systems, the fastener connection part, and the lower foundation fixing part. The longitudinal and lateral adjustments of the track structure can be completed only by adjusting the assembly state of the upper and lower structures, and a large range of vertical height adjustment can be achieved, which has a stronger adaptability to the lower foundation.

[0023] 2. The support system is light in weight and can be manually transported to the construction site. During the adjustment period, no special lifting equipment is required to complete the adjustment of the track structure. For the construction of tunnel sections with relatively tight space, the track adjustment time is greatly reduced, which has a good advantage for the construction of skylight points.

[0024] 3. The support system is a prefabricated structure with simple manufacturing and processing. The device can be reused to reduce maintenance costs and meet the needs of fast and efficient daily maintenance.

[0025] 4. After the device is roughly adjusted into place, the lower structure is cast in situ with concrete, and bolts are used to ensure a tight connection with the lower foundation, ensuring structural stability. Only the rails need to be fine-tuned into place, and one pouring can meet the line operation requirements.

[0026] 5. The new support system can meet the requirements of rectangular and circular tunnel sections, and can also meet the requirements of turnout area reconstruction. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the prior art;

[0028] Figure 2 is another schematic diagram of the prior art;

[0029] Figure 3 2 is a general schematic diagram of a temporary support device for replacing an integral track bed according to an embodiment of the present invention;

[0030] Figure 4 It is a schematic diagram of a steel buttress of a temporary support device for replacing an integral track bed according to an embodiment of the present invention. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in each embodiment of the present invention described below can be combined with each other as long as they do not conflict with each other. The present invention is further described in detail below in conjunction with specific embodiments.

[0032] As a preferred embodiment of the present invention, Figure 3-4 As shown, the present invention provides a temporary support device for replacing an integral roadbed, characterized in that: the temporary support device for replacing an integral roadbed is used to temporarily support under the rails between adjacent existing sleepers before dismantling the existing integral roadbed; it includes fasteners and steel piers; the steel piers are upper and lower assembly structures, including an upper component and a lower component, the fasteners are installed above the upper component, and the lower part of the lower component is connected to the lower foundation; the upper component and the lower component can be vertically adjusted and fixed.

[0033] like Figure 3As shown, the upper component includes an upper connecting member 4 and an upper top plate 8; the lower component includes a lower connecting member 5 and a lower bottom plate 9; the buckle fitting is fixedly connected to the upper top plate 8, and the lower bottom plate 9 is fixedly connected to the lower foundation; the upper connecting member 4 and the lower connecting member 5 are matched in shape, and both can be adjusted and fixed vertically.

[0034] like Figure 4 As shown, the upper connecting member 4 and the lower connecting member 5 are sleeve structures that are sleeved with each other. Preferably, the sleeves of the upper connecting member 4 and the lower connecting member 5 are rectangular sleeves. Alternatively, the sleeves of the upper connecting member 4 and the lower connecting member 5 are circular sleeves, elliptical sleeves, etc. The upper connecting member 4 can be sleeved inside or outside the lower connecting member 5. Accordingly, different numbers of gaskets are arranged at the inner bottom or outer top of the lower connecting member to adjust the vertical height of the upper connecting member. At the same time, longitudinal and transverse screws are arranged on the outer sleeve, and longitudinal and transverse adjustment is achieved by twisting the screws to push the inner sleeve.

[0035] Bolt holes are provided on the upper top plate 8 and the periphery of the upper connecting member 4 , which are fixedly connected to the fastener by anchor bolts 1 and fastening nuts 3 .

[0036] Bolt holes are provided on the periphery of the lower base plate 9 and the lower connecting member 5 , and are fixedly connected to the lower foundation through anchor bolts 7 and anchor bolt adjusting nuts 6 .

[0037] When used for the end face of a rectangular tunnel, the upper connector 4 and the upper top plate 8, the lower connector 5 and the lower bottom plate 9 are in a mutually perpendicular relationship. When used for the end face of a circular tunnel, the upper top plate 8 remains horizontal, the lower bottom plate 9 is tilted and fits the lower foundation of the circular tunnel, the upper connector 4 and the upper top plate 8 are in a non-vertical tilted state, and the lower connector 5 and the lower bottom plate 9 are in a mutually perpendicular state or a non-vertical tilted state.

[0038] The buckle fitting includes an iron pad 2 and an elastic bar; the iron pad 2 is fixed to the upper top plate 8, and the elastic bar connects and fixes the rail and the iron pad 2. Preferably, the buckle fitting also includes a rubber pad, which is arranged between the iron pad 2 and the upper top plate 8.

[0039] The support system of the present invention has a simple structure, and only includes an upper and lower assembled system, a fastener connection part, and a lower foundation fixing part. Only by adjusting the assembly state of the upper and lower structures, the longitudinal and lateral adjustment of the track structure can be completed, and a large range of vertical height adjustment can be achieved, and the adaptability to the lower foundation is stronger. The support system is light in weight and can be transported to the construction site by hand, and no special lifting device is required during the adjustment period to complete the adjustment of the track structure state. For the construction of tunnel sections with relatively tight space, the track adjustment time is greatly reduced, and it has a good advantage for the construction of skylight points. The support system is an assembled structure, which is simple to manufacture and process, and the device can be reused, reducing maintenance costs and meeting the needs of fast and efficient daily maintenance and repair. After the device is roughly adjusted in place, the lower structure is cast in place with concrete, and the bolts ensure a close connection with the lower foundation, ensuring the stability of the structure. Only the rails need to be fine-tuned in place, and one-time casting can meet the line operation requirements. The new support system can meet the use requirements of rectangular and circular tunnel sections, and can meet the use requirements of turnout area transformation.

[0040] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A temporary support device for replacing an integral track bed, characterized in that: The temporary support device for replacing the integral ballast bed is used to temporarily support the rails between adjacent existing sleepers before removing the existing integral ballast bed; Includes buckle fittings and steel buttresses; The steel pier is an upper and lower assembly structure, including an upper component and a lower component. The buckle is installed above the upper component, and the lower component is connected to the lower foundation below. The upper component and the lower component can be vertically adjusted and fixed. The upper component comprises an upper connecting member (4) and an upper top plate (8); The lower component comprises a lower connecting member (5) and a lower base plate (9); The buckle fitting is fixedly connected to the upper top plate (8), and the lower bottom plate (9) is fixedly connected to the lower foundation; The upper connecting piece (4) and the lower connecting piece (5) are matched in shape and can be vertically adjusted and fixed; The upper connecting piece (4) and the lower connecting piece (5) are sleeve structures that are sleeved together. Different numbers of gaskets are arranged at the inner bottom or outer top of the lower connecting piece to adjust the vertical height of the upper connecting piece. The outer sleeve is provided with longitudinal and transverse screws, and the longitudinal and transverse adjustment is achieved by twisting the screws to push the inner sleeve. Bolt holes are provided on the upper top plate (8) and the periphery of the upper connecting piece (4), and are fixedly connected to the fastening piece by anchor bolts (1); Bolt holes are provided on the periphery of the upper and lower connecting members (5) of the lower base plate (9) and are fixedly connected to the lower foundation via anchor bolts (7); The fastener comprises an iron plate (2) and an elastic strip; the iron plate (2) is fixed to the upper top plate (8), and the steel rail and the iron plate (2) are connected and fixed via the elastic strip; The buckle fitting also includes a rubber pad, which is arranged between the iron pad (2) and the upper top plate (8).

2. The temporary support device for replacing the integral track bed according to claim 1, characterized in that: The sleeves of the upper connecting piece (4) and the lower connecting piece (5) are rectangular sleeves.

3. The temporary support device for replacing the integral track bed according to claim 1, characterized in that: The sleeves of the upper connecting piece (4) and the lower connecting piece (5) are circular sleeves.

4. The temporary support device for replacing the integral track bed according to claim 1, characterized in that: The upper connecting piece (4) is sleeved inside or outside the lower connecting piece (5).

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