CN212316562U - Combined type damping track structure - Google Patents

Abstract

The utility model provides a combined type damping track structure, including damping bed course, stereoplasm basis, track and railway ballast, the damping bed course sets up in stereoplasm basis upper surface, and the track sets up in the damping bed course upper end, and the railway ballast fills the space between track and the damping bed course; the damping bed course includes that damping fills up and rubble damping adjustment layer, and rubble damping adjustment layer sets up in damping upper surface, and the railway ballast sets up in rubble damping adjustment layer upper surface, and the track lower surface sets up in rubble damping adjustment layer upper surface. The utility model adopts the mode of combining the graded broken stone damping adjustment layer and the damping cushion layer to carry out comprehensive isolation through the lower part foundation, thereby playing the damping effect of multi-means fusion; maintenance and maintenance operations such as tamping, screen cleaning and the like required by the traditional ballast track structure are avoided by the mode of adding broken stones into the polyurethane material.

Description

Combined type damping track structure

Technical Field

The utility model relates to a railway equipment technical field especially relates to a damping track structure.

Background

Urban rail transit and high-speed railway have higher requirement to track structure damping performance when passing through special district usually, and at present, urban rail and high-speed railway generally adopt ballastless track structure, mainly because ballastless track structure need not the maintenance and repair's consideration.

But due to the characteristics of the ballastless track structure, the original vibration damping performance of the ballastless track structure is much weaker than that of the ballasted track structure. And vibration isolation measures such as steel spring floating plates are adopted, so that vibration transmitted to a lower foundation by a vehicle and a track can be isolated, but due to the energy conservation principle, the vibration is concentrated in the interaction of the wheels and the track, the damage of track parts is further aggravated, and the problems of wavy abrasion of the steel rail, curve squeal and the like are caused.

The rail structure is needed, so that the problems of wavy abrasion and curved squeal of the steel rail caused by aggravation of damage of rail parts due to the fact that vibration is concentrated in interaction of wheels and rails can be effectively avoided.

Disclosure of Invention

The utility model relates to a solve among the prior art vibration concentrate on wheel and orbital interact, and then aggravate the damage of track part, arouse rail wave wearing and tearing, the problem of the curved line squealing, provide a combined type damping track structure, through having solved above-mentioned problem.

The utility model provides a combined type damping track structure, including damping bed course, stereoplasm basis, track and railway ballast, the damping bed course sets up in stereoplasm basis upper surface, the track sets up in damping bed course upper surface, the track includes railway bed block group and track body, the railway bed block group sets up in damping bed course upper surface, the track body sets up in railway bed block group upper surface, the railway ballast sets up in damping bed course upper surface, railway bed block group and damping bed course area of contact are less than damping bed course area, the railway ballast packs the track space and highly is greater than the height of railway bed block group upper surface and is less than track body height; the damping bed course includes that damping fills up and rubble damping adjustment layer, and rubble damping adjustment layer sets up in damping upper surface, and the railway ballast sets up in rubble damping adjustment layer upper surface, and the track lower surface sets up in rubble damping adjustment layer upper surface.

A combined type damping track structure, as preferred mode, the track body includes first rail, second rail, sleeper, first fastener, second fastener, the sleeper level sets up, first rail and second rail symmetry set up in the sleeper upper surface and set up perpendicularly with the sleeper, the sleeper is connected through first fastener to first rail, the sleeper is connected through the second fastener to the second rail, the sleeper sets up in railway roadbed block group upper surface.

A combined type damping track structure, as preferred mode, the railway roadbed block group includes first railway roadbed piece and second railway roadbed piece, first railway roadbed piece and second railway roadbed piece set up relatively respectively in sleeper both sides lower extreme, first railway roadbed piece lower surface and second railway roadbed piece lower surface set up in rubble damping adjustment layer upper surface.

Set gradually rubble damping adjustment layer and railway roadbed piece to establish the sleeper on railway roadbed piece upper portion in the embedding, the fastener correspondence is installed on sleeper upper portion, and is fixed rail and sleeper through the retaining member, thereby can select in proper order or select the thickness of changing the fastener of different thickness, the railway roadbed piece of co-altitude and adjustment rubble damping adjustment layer simultaneously and reach the purpose of adjustment rail height, realize the hierarchical adjustment to overall structure.

A combined type damping track structure, as preferred mode, first way bed piece and second way bed piece are polymer damping material.

Preferably, the polymer damping material comprises, but is not limited to, polyurethane and epoxy resin, and is environment-friendly, low in cost and strong in condensation force.

Preferably, first railway roadbed piece and second railway roadbed piece are prefabricated an organic whole by macromolecular material and sleeper integration to be convenient for change the compound railway roadbed piece of not co-altitude polymer, and make the compound railway roadbed piece of polymer with the fastening has been strengthened the security that the train travel to the sleeper connection.

The sleeper is arranged on the upper part of the polymer composite track bed block, so that the polymer composite track bed block is convenient to contact the broken stone vibration reduction adjusting layer and is convenient to connect a fastener through a steel rail, the adjustment of the basic track bed is convenient to select, and the adjustment is quick and convenient; meanwhile, the high polymer material and the sleeper are integrally prefabricated into a whole, and discrete crushed stone ballast particles can be consolidated into a whole.

A combined type damping track structure, as preferred mode, the damping pad is polyurethane material.

A combined type damping track structure, as preferred mode, rubble damping adjustment layer is the graded rubble structure, the graded rubble is the little rubble of 1 ~ 31.5mm particle diameter.

A combined type damping track structure, as preferred mode, the railway ballast is the bulk body railway ballast that consolidates through the polymer.

The height of multiple specification is all prefabricated to rubble damping adjustment layer with the compound roadbed piece of polymer, is convenient for according to the deformation degree of basic roadbed selects not co-altitude rubble damping adjustment layer with the compound roadbed piece of polymer.

The utility model discloses based on there is the tiny fragments of stone, coal, etc. track structure to research and develop traditionally, when full play tradition has tiny fragments of stone, coal, etc. track damping mechanical properties, the method of consolidating to the scattered body railway tiny fragments of stone, coal, etc. through macromolecular material has strengthened the tradition and has had tiny fragments of stone, coal, etc. track's durability, makes there be tiny fragments of stone, coal, etc. track to reach the purpose of avoiding daily maintenance. And multi-layer damping structures such as an adjusting layer and a damping pad are designed. The assembly type construction can be carried out on site, the daily maintenance is avoided, the construction cost is saved, and meanwhile, the operation efficiency is improved.

The utility model discloses beneficial effect as follows:

(1) various vibration reduction measures are adopted to be matched with the rail vibration reduction component, so that the influence of the interaction of the vibration concentrated on the wheels and the rails is reduced;

(2) the structural main body is a vibration reduction structural unit of the rail bed sleeper reinforced by high polymer materials, the condensation force is strong, and the running safety of a train is enhanced;

(3) the method for solidifying the discrete ballast by the high polymer material enhances the durability of the traditional ballast track, so that the ballast track achieves the aim of avoiding daily maintenance;

(4) the lower foundation is comprehensively isolated in a mode of compounding the graded broken stone vibration reduction adjusting layer and the vibration reduction cushion layer, so that the vibration reduction effect of multi-section fusion is achieved;

(5) maintenance and maintenance operations such as tamping, screen cleaning and the like required by the traditional ballast track structure are avoided by the mode of adding broken stones into the polyurethane material.

Drawings

FIG. 1 is a schematic view of a composite damping track structure;

FIG. 2 is a schematic view of a composite damping track structure track;

FIG. 3 is a schematic view of a track body of a composite damping track structure;

FIG. 4 is a schematic view of a track bed set of a composite damping track structure;

fig. 5 is a schematic view of a damping cushion layer of a composite damping track structure.

Reference numerals:

1. a vibration damping cushion layer; 11. a vibration damping pad; 12. a gravel vibration reduction adjustment layer; 2. a hard foundation; 3. A track; 31. a ballast bed block group; 311. a first bed block; 312. a second track bed block; 32. a track body; 321. a first steel rail; 322. a second steel rail; 323. a sleeper; 324. a first fastener; 325. a second fastener; 4. and (4) ballast.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example 1

As shown in fig. 1-2, a combined type damping track structure, including damping cushion 1, stereoplasm basis 2, track 3 and railway ballast 4, damping cushion 1 sets up in stereoplasm basis 2 upper surface, track 3 sets up in damping cushion 1 upper surface, track 3 includes railway ballast bed block group 31 and track body 32, railway ballast bed block group 31 sets up in damping cushion 1 upper surface, track body 32 sets up in railway ballast bed block group 31 upper surface, railway ballast 4 sets up in damping cushion 1 upper surface, railway ballast bed block group 31 is less than damping cushion 1 area with damping cushion 1 area of contact, railway ballast 4 fills 3 spaces of track and highly is greater than railway ballast bed block group 31 upper surface height and is less than track body 32 height. The railway ballast 4 is a bulk railway ballast solidified by high molecules.

As shown in fig. 3, the rail body 32 includes a first rail 321, a second rail 322, a sleeper 323, a first fastener 324 and a second fastener 325, the sleeper 323 is horizontally disposed, the first rail 321 and the second rail 322 are symmetrically disposed on the upper surface of the sleeper 323 and are perpendicular to the sleeper 323, the first rail 321 is connected to the sleeper 323 through the first fastener 324, the second rail 322 is connected to the sleeper 323 through the second fastener 325, and the sleeper 323 is disposed on the upper surface of the track block set 321.

As shown in fig. 4, the track bed block set 31 includes a first track bed block 311 and a second track bed block 312, the first track bed block 311 and the second track bed block 312 are respectively disposed at the lower ends of two sides of the sleeper 323, and the lower surface of the first track bed block 311 and the lower surface of the second track bed block 312 are disposed on the upper surface of the gravel vibration reduction adjustment layer 12. The first track bed piece 311 and the second track bed piece 312 are both made of polymer damping materials.

As shown in fig. 5, the damping cushion layer 1 includes a damping cushion 11 and a gravel damping adjustment layer 12, the gravel damping adjustment layer 12 is disposed on the upper surface of the damping cushion 11, the ballast 4 is disposed on the upper surface of the gravel damping adjustment layer 12, and the lower surface of the track 3 is disposed on the upper surface of the gravel damping adjustment layer 12. The damping pad 11 is a polyurethane material. The gravel vibration reduction adjusting layer 12 is of a graded gravel structure, and the graded gravel is small gravel with the grain diameter of 1-31.5 mm.

The construction comprises the following steps:

s1, paving a ballast lower vibration damping pad 11 on a tunnel or bridge lower part hard foundation 2, wherein the vibration damping pad 11 mainly comprises a polyurethane material.

S2, paving a graded broken stone vibration reduction adjusting layer 12 above the vibration reduction pad 11, wherein the graded broken stone is small broken stone with the grain size of 1-31.5 mm.

S3, directly paving the high polymer material reinforced vibration damping structure unit bodies of the track bed sleeper, namely the first track bed block 36 and the second track bed block 37, above the graded broken stone vibration damping adjustment layer 12, or after paving the broken stone track bed and the sleeper 33, pouring the high polymer material on site.

And S4, roughly adjusting the track bed sleeper 33, the first track bed block 36 and the second track bed block 37 which are reinforced by the high polymer materials through a small hoisting mechanism.

And S5, fixing the steel rail above the high-molecular-material-reinforced vibration-damping structural unit body of the track bed sleeper by using a large-height-adjusting fastener, wherein if a section with special requirements exists, the steel rail can adopt a damping steel rail, and the fastener can adopt a special vibration-damping fastener and is compatible with various vibration-damping track components.

And S6, fine adjustment is carried out on the line.

And S7, filling functional graded broken stones among the unit bodies of the vibration reduction structure of the track bed sleeper.

S8, sealing the surface of the track structure to form a smooth walking surface.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (7)

1. The utility model provides a combined type damping track structure which characterized in that: comprises a damping cushion layer (1), a hard foundation (2), a track (3) and a railway ballast (4), the vibration damping cushion layer (1) is arranged on the upper surface of the hard foundation (2), the track (3) is arranged on the upper surface of the vibration damping cushion layer (1), the track (3) comprises a track bed block group (31) and a track body (32), the ballast bed block group (31) is arranged on the upper surface of the damping cushion layer (1), the track body (32) is arranged on the upper surface of the track bed block group (31), the railway ballast (4) is arranged on the upper surface of the vibration damping cushion layer (1), the contact area of the railway ballast block group (31) and the vibration damping cushion layer (1) is smaller than the area of the vibration damping cushion layer (1), the ballast (4) fills the gap of the track (3) and has a height greater than the height of the upper surface of the track bed block group (31) and less than the height of the track body (32); damping bed course (1) is including damping pad (11) and rubble damping adjustment layer (12), rubble damping adjustment layer (12) set up in damping pad (11) upper surface, railway ballast (4) set up in rubble damping adjustment layer (12) upper surface, track (3) lower surface set up in rubble damping adjustment layer (12) upper surface.

2. The composite vibration damping track structure as claimed in claim 1, wherein: the track body (32) comprises a first steel rail (321), a second steel rail (322), a sleeper (323), a first fastener (324) and a second fastener (325), the sleeper (323) is horizontally arranged, the first steel rail (321) and the second steel rail (322) are symmetrically arranged on the upper surface of the sleeper (323) and are vertically arranged on the sleeper (323), the first steel rail (321) is connected with the sleeper (323) through the first fastener (324), the second steel rail (322) is connected with the sleeper (323) through the second fastener (325), and the sleeper (323) is arranged on the upper surface of the track bed block group (31).

3. The composite vibration damping track structure as claimed in claim 2, wherein: the ballast bed block group (31) comprises a first ballast bed block (311) and a second ballast bed block (312), the first ballast bed block (311) and the second ballast bed block (312) are respectively and relatively arranged at the lower ends of two sides of the sleeper (323), and the lower surface of the first ballast bed block (311) and the lower surface of the second ballast bed block (312) are arranged on the upper surface of the gravel vibration reduction adjusting layer (12).

4. The composite vibration damping track structure as claimed in claim 3, wherein: the first track bed block (311) and the second track bed block (312) are made of polymer damping materials.

5. The composite vibration damping track structure as claimed in claim 1, wherein: the damping pad (11) is made of polyurethane material.

6. The composite vibration damping track structure as claimed in claim 1, wherein: the gravel vibration reduction adjusting layer (12) is of a graded gravel structure, and the graded gravel is small gravel with the grain diameter of 1-31.5 mm.

7. The composite vibration damping track structure as claimed in claim 1, wherein: the ballast (4) is a bulk ballast solidified by high molecules.

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