CN110387775B - Track adjusting structure and manufacturing process thereof - Google Patents
Track adjusting structure and manufacturing process thereof Download PDFInfo
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- CN110387775B CN110387775B CN201910668315.6A CN201910668315A CN110387775B CN 110387775 B CN110387775 B CN 110387775B CN 201910668315 A CN201910668315 A CN 201910668315A CN 110387775 B CN110387775 B CN 110387775B
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- 238000004519 manufacturing process Methods 0.000 title abstract description 7
- 239000002131 composite material Substances 0.000 claims abstract description 109
- 229920000642 polymer Polymers 0.000 claims abstract description 106
- 239000004575 stone Substances 0.000 claims abstract description 95
- 241001669679 Eleotris Species 0.000 claims abstract description 55
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 45
- 239000010959 steel Substances 0.000 claims abstract description 45
- 239000002861 polymer material Substances 0.000 claims description 8
- 238000005056 compaction Methods 0.000 claims description 7
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 229920005749 polyurethane resin Polymers 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000012216 screening Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 13
- 238000011161 development Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
- E01B1/001—Track with ballast
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/06—Height or lateral adjustment means or positioning means for slabs, sleepers or rails
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention provides a track adjusting structure and a manufacturing process thereof, wherein the track comprises a sleeper and a steel rail fixed on the sleeper, and the sleeper is fixed on a basic track bed; the broken stone adjusting layer is paved on the foundation road bed; the number of the polymer composite track bed blocks corresponds to that of the sleeper, the lower ends of the sleeper are integrally embedded at the upper parts of the polymer composite track bed blocks in a one-to-one correspondence manner, and the bottom ends of the polymer composite track bed blocks are arranged on the broken stone adjusting layer; the broken stone filling layer is filled in gaps among the polymer composite track bed blocks; the fastener is correspondingly arranged on the sleeper and fixes the steel rail with the sleeper through the locking piece. The invention provides a track adjusting structure, which can ensure that the elevation of a steel rail is not influenced by the deformation of a lower foundation by adjusting the height of the lower structure according to different deformation degrees of a foundation track, so that the track adjusting structure is not only suitable for a section with over-limited and continuously developed deformation of the original lower integral ballast bed structure, but also can adjust the height of the steel rail in time without daily maintenance and repair such as screening and the like.
Description
Technical Field
The invention relates to the technical field of railways, in particular to a track adjusting structure and a manufacturing process thereof.
Background
When the ballastless track structure is deformed greatly on the lower foundation (namely, when the original lower integral ballast bed structure is deformed greatly), the ballastless track structure is difficult to treat, once the ballastless track structure is not good in treatment, the smoothness of the track structure is greatly influenced, and even the driving safety of a train is threatened under extreme conditions. If the scheme such as grouting lifting or falling road repairing is adopted, the construction difficulty is high, and the method is not suitable for the condition of repairing the subsequent continuous development of lower foundation deformation.
Therefore, how to provide a track adjusting structure which is simple to operate and can adjust the section of the original lower integral ballast bed structure with excessive deformation and continuous development in time and a manufacturing process thereof are the problems to be solved by the technical personnel in the art.
Disclosure of Invention
In view of the above, the invention provides a track adjusting structure and a manufacturing process thereof, which can ensure that the elevation of a steel rail is not influenced by the deformation of a lower foundation by adjusting the height of the lower structure according to different deformation degrees of a foundation track, so that the track adjusting structure is not only suitable for the section with overrun and sustainable development of the deformation of the original lower integral ballast bed structure, but also can adjust the height of the steel rail in time without daily maintenance and repair such as screening and the like.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the rail comprises a sleeper and a steel rail fixed on the sleeper, wherein the sleeper is fixed on a foundation track bed and comprises a broken stone adjusting layer, a polymer composite track bed block, a broken stone filling layer and a fastener;
the broken stone adjusting layer is paved on the foundation road bed; the number of the polymer composite track bed blocks corresponds to the number of the sleepers, the lower ends of the sleepers are integrally embedded in the upper parts of the polymer composite track bed blocks in a one-to-one correspondence mode, and the bottom ends of the polymer composite track bed blocks are arranged on the broken stone adjusting layer;
the broken stone filling layer is filled in gaps among the polymer composite track bed blocks; the fastener is correspondingly arranged on the sleeper and fixes the steel rail with the sleeper through the locking piece.
According to the invention, the gravel adjusting layer and the polymer composite track bed block are sequentially arranged on the foundation track bed, the sleeper is embedded at the upper part of the polymer composite track bed block, the fastener is correspondingly arranged on the sleeper, and the steel rail and the sleeper are fixed through the locking piece, so that when the foundation track bed is deformed, a worker can sequentially or simultaneously select and replace fasteners with different thicknesses, the polymer composite track bed blocks with different heights and the thickness of the gravel adjusting layer according to the deformation degree of the foundation track bed, so that the purpose of adjusting the height of the steel rail is achieved, and the invention can realize the graded adjustment of the deformation of the foundation track bed through the fastener, the polymer composite track bed block and the gravel adjusting layer;
the invention can carry out graded adjustment on the deformation of the foundation ballast bed, so the invention can sequentially or simultaneously select different adjustment modes according to the deformation degree of the foundation ballast bed, thereby being applicable to the section with the deformation overrun of the foundation ballast bed; meanwhile, the crushed stone adjusting layer, the polymer composite ballast bed blocks and the fasteners are sequentially arranged from low to high, the fasteners with different thicknesses and the polymer composite ballast bed blocks with different heights are convenient to replace, and the thickness of the crushed stone adjusting layer is convenient to adjust, so that even if the foundation ballast bed is continuously deformed, workers can timely and quickly adjust the deformation of the foundation ballast bed.
Therefore, the invention is suitable for the section with the deformation overrun and the sustainable development of the foundation ballast bed, and the height of the steel rail can be adjusted in time without daily maintenance such as screening and the like, thereby realizing the effect of simple and convenient operation.
Preferably, a ballast bed groove is formed in the foundation ballast bed, and the crushed stone adjusting layer is paved in the ballast bed groove, so that the invention can limit the crushed stone adjusting layer through the ballast bed groove, thereby preventing the problem that the crushed stone adjusting layer is easy to deform, ensuring the adjusting accuracy and prolonging the service life of the ballast adjusting layer.
Preferably, the polymer composite track bed blocks are integrally prefabricated into a whole by a polymer material and a sleeper, so that the polymer composite track bed blocks with different heights can be conveniently replaced, the polymer composite track bed blocks and the sleeper are connected and fastened, and the running safety of a train is enhanced; meanwhile, the sleeper is arranged at the upper part of the polymer composite ballast bed block, so that the polymer composite ballast bed block can conveniently contact the broken stone adjusting layer, and the steel rail can conveniently be connected with the fastener, thereby being convenient for selecting an adjusting mode for deformation of the foundation ballast bed, and simultaneously being fast and convenient to adjust; meanwhile, the polymer material and the sleeper are integrally prefabricated into a whole, so that the scattered gravel ballast particles can be solidified into a whole.
Preferably, the polymer material comprises, but is not limited to polyurethane and epoxy resin, is environment-friendly, has low cost and strong coagulation force.
Preferably, the height of multiple specifications can be prefabricated for both the broken stone adjusting layer and the polymer composite ballast bed block, so that the broken stone adjusting layer and the polymer composite ballast bed block with different heights can be conveniently selected according to the deformation degree of the foundation ballast bed.
Preferably, the compaction degree of the gravels in the gravels adjusting layer and the gravels filling layer is more than 1.75g/m < 3 >, the particle size range of the gravels is 1.2 cm-63 cm, the problems that the gravels adjusting layer and the gravels filling layer are easy to collapse in the subsequent use process and the like are prevented, and the service life of the invention is prolonged.
The track adjusting structure is formed by the following steps:
s1, prefabricating a polymer composite track bed block: prefabricating sleeper integrally on the upper part of the polymer composite track bed block to form a whole;
s2, a ballast bed groove is formed in a basic ballast bed: digging and chiseling the foundation ballast bed through a disc saw, a rope saw and other digging tools, and forming a ballast bed groove to a preset depth;
s3, paving a broken stone adjusting layer on the bottom of the ballast bed groove, compacting the broken stone adjusting layer, and adjusting the height of the steel rail at the first stage through the broken stone adjusting layer;
s4, the polymer composite track bed blocks with corresponding thickness are arranged on the crushed stone adjusting layer at intervals: contacting the polymer composite ballast bed block with the crushed stone adjusting layer, enabling the height of the polymer composite ballast bed block to reach the notch of the ballast bed groove, and adjusting the height of the steel rail for the second stage through the polymer composite ballast bed block;
s5, fine adjustment is carried out on the height of the polymer composite track bed block: the method comprises the steps that fasteners with corresponding thickness are uniformly arranged on a sleeper, meanwhile, the bottom end of a steel rail is pressed on the top end of a high polymer composite track bed block through the fasteners, and the fasteners, the bottom end of the steel rail and the top end of the high polymer composite track bed block are connected together through the fasteners, so that the fasteners with corresponding thickness are arranged on the sleeper, the height of the high polymer composite track bed block is further accurately adjusted, namely, the third-level height adjustment is carried out on the steel rail through the fasteners;
s6: filling a gravel filling layer in gaps between every two adjacent polymer composite track bed blocks, enabling the filling height of the gravel filling layer to reach the notch of the track bed groove, and enabling the gravel filling layer to be filled in the gaps between the polymer composite track bed blocks to be tightly laminated, wherein the density of the gravel filling layer is the same as that of the gravel adjusting layer.
The track adjusting structure is formed through the process, and is simple in process and low in cost.
Preferably, in the step S2, the cutting tool includes a disc saw and a wire saw.
Preferably, in the step S3, the crushed stone adjusting layer is crushedCompacting, the compaction degree is more than 1.75g/m 3 The problems that the crushed stone adjusting layer is easy to collapse in the subsequent use process are prevented, and the service life of the invention is prolonged.
Preferably, in the step S6, the crushed stone filling layer filled in the gap between the composite ballast bed assemblies is compacted, and the density of the crushed stone filling layer is the same as that of the crushed stone adjusting layer, so that the crushed stone filling layer is prevented from collapsing easily in the subsequent use process, and the mechanical properties of the crushed stone filling layer and the crushed stone adjusting layer are the same, thereby further prolonging the service life of the ballast bed.
Compared with the prior art, the track adjusting structure provided by the invention has the following technical effects:
according to the invention, the gravel adjusting layer and the polymer composite track bed block are sequentially arranged on the foundation track bed, the sleeper is embedded at the upper part of the polymer composite track bed block, the fastener is correspondingly arranged on the sleeper, and the steel rail and the sleeper are fixed through the locking piece, so that when the foundation track bed is deformed, a worker can sequentially or simultaneously select and replace fasteners with different thicknesses, polymer composite track bed blocks with different heights and the thickness of the gravel adjusting layer according to the deformation degree of the foundation track bed, and the purpose of adjusting the height of the steel rail is achieved, and the invention can realize the graded adjustment of the deformation of the foundation track bed through the fastener, the polymer composite track bed block and the gravel adjusting layer;
the invention can carry out graded adjustment on the deformation of the foundation track bed, so the invention can sequentially or simultaneously select different adjustment modes according to the deformation degree of the foundation track bed, thereby being applicable to the section with the deformation overrun of the foundation track bed; meanwhile, the broken stone adjusting layer, the polymer composite ballast bed blocks and the fasteners are sequentially arranged from low to high, the fasteners with different thicknesses and the polymer composite ballast bed blocks with different heights are convenient to replace, and the thickness of the broken stone adjusting layer is convenient to adjust, so that even if a foundation ballast bed is continuously deformed, workers can timely and quickly adjust the deformation of the foundation ballast bed.
Therefore, the invention is suitable for the section with the deformation overrun and the sustainable development of the foundation ballast bed, and the height of the steel rail can be adjusted in time without daily maintenance such as screening and the like, thereby realizing the effect of simple and convenient operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a cross-sectional view of a track adjustment structure according to the present invention;
FIG. 2 is a longitudinal cross-sectional view of a track adjustment structure according to the present invention;
FIG. 3 is an enlarged view of a portion of the invention at A in FIG. 1;
FIG. 4 is a diagram showing the construction of a foundation track bed with track bed grooves according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a track adjusting structure and a manufacturing process thereof, which can ensure that the elevation of a steel rail is not influenced by the deformation of a lower foundation by adjusting the height of the lower structure according to different deformation degrees of a foundation track, so that the track adjusting structure is not only suitable for a section with the deformation overrun and continuous development of the original lower integral ballast bed structure, but also can adjust the height of the steel rail in time without daily maintenance and repair such as screening and the like.
The rail comprises a sleeper 32 and a steel rail 5 fixed on the sleeper 32, wherein the sleeper 32 is fixed on a foundation track bed 1 and comprises a broken stone adjusting layer 2, a polymer composite track bed block 3, a broken stone filling layer and a fastener 4;
the broken stone adjusting layer 2 is paved on the foundation ballast bed 1; the number of the polymer composite track bed blocks 31 corresponds to that of the sleepers 32, the lower ends of the sleepers 32 are integrally embedded at the upper parts of the polymer composite track bed blocks 31 in a one-to-one correspondence manner, and the bottom ends of the polymer composite track bed blocks 31 are arranged on the broken stone adjusting layer 2;
the broken stone filling layer is filled in gaps among the polymer composite track bed blocks 31; the fasteners 4 are correspondingly mounted on the sleeper 32 and fix the rail 5 to the sleeper 32 by means of the locking elements 6.
In order to further optimize the technical scheme, a ballast bed groove 11 is formed in the foundation ballast bed 1, and the broken stone adjusting layer 2 is paved in the ballast bed groove 11.
In order to further optimize the technical scheme, the polymer composite track bed block 31 is integrally prefabricated by a polymer material and the sleeper 32.
In order to further optimize the technical scheme, the high polymer material comprises, but is not limited to polyurethane and epoxy resin.
In order to further optimize the technical scheme, the height of various specifications can be prefabricated on the macadam adjusting layer 2 and the polymer composite ballast bed block 31.
In order to further optimize the technical proposal, the compaction degree of the broken stone in the broken stone adjusting layer 2 and the broken stone filling layer is more than 1.75g/m 3 The particle size of the crushed stone ranges from 1.2cm to 63cm.
In order to further optimize the technical scheme, the length of the polymer composite track bed block 31 ranges from C1 to C2.
S1, prefabricating a polymer composite track bed block 31: the sleeper 32 is integrally prefabricated on the upper part of the polymer composite track bed block 31 to form a whole;
s2, forming a ballast bed groove 11 on the foundation ballast bed 1: digging and chiseling the foundation ballast bed 1 through a disc saw, a rope saw and other digging tools, and forming a ballast bed groove 11 to a preset depth;
s3, paving a broken stone adjusting layer 2 on the bottom of the ballast bed groove 11, compacting the broken stone adjusting layer 2, and adjusting the height of the steel rail 5 at the first stage through the broken stone adjusting layer 2;
s4, polymer composite track bed blocks 31 with corresponding thickness are arranged on the crushed stone adjusting layer 2 at intervals: the polymer composite ballast bed block 31 is contacted with the crushed stone adjusting layer 2, the height of the polymer composite ballast bed block 31 reaches the notch of the ballast bed groove 11, and the second-stage height adjustment is carried out on the steel rail 5 through the polymer composite ballast bed block 31;
s5, fine adjustment is carried out on the height of the polymer composite track bed block 31: the fasteners 4 with corresponding thickness are uniformly arranged on the sleeper 32, the bottom ends of the steel rails 5 are pressed on the top ends of the polymer composite track bed blocks 31 through the fasteners 4, and the fasteners 4, the bottom ends of the steel rails 5 and the top ends of the polymer composite track bed blocks 31 are connected together through the fasteners 6, so that the fasteners 4 with the same thickness are arranged on the sleeper 32, the height of the polymer composite track bed blocks 31 is further accurately adjusted, namely, the third-level height adjustment is carried out on the steel rails 5 through the fasteners 4;
s6: the gap between every two adjacent polymer composite track bed blocks 31 is filled with a crushed stone filling layer, so that the filling height of the crushed stone filling layer reaches the notch of the track bed groove 11, and crushed stone filling layers filled in the gap between the polymer composite track bed blocks 31 are laminated to be compact, and the density of the crushed stone filling layer is the same as that of the crushed stone adjusting layer 2.
In order to further optimize the above technical solution, in step S2, the cutting tool comprises a disc saw and a rope saw.
In order to further optimize the technical scheme, in the step S3, the crushed stone adjusting layer 2 is rolled and compacted, and the compaction degree is more than 1.75g/m 3 。
In order to further optimize the above technical solution, in step S6, the crushed stone filling layer filling the gap between the composite ballast bed assemblies 3 is laminated to a dense state, and the density of the crushed stone filling layer is the same as that of the crushed stone adjusting layer 2.
Examples:
the invention discloses a track adjusting structure, which comprises a sleeper 32 and a steel rail 5 fixed on the sleeper 32, wherein the sleeper 32 is fixed on a foundation track bed 1 and comprises a broken stone adjusting layer 2, a polymer composite track bed block 3, a broken stone filling layer and a fastener 4;
the broken stone adjusting layer 2 is paved on the foundation ballast bed 1; the number of the polymer composite track bed blocks 31 corresponds to that of the sleepers 32, the lower ends of the sleepers 32 are integrally embedded at the upper parts of the polymer composite track bed blocks 31 in a one-to-one correspondence manner, and the bottom ends of the polymer composite track bed blocks 31 are arranged on the broken stone adjusting layer 2;
the broken stone filling layer is filled in gaps among the polymer composite track bed blocks 31; the fasteners 4 are correspondingly mounted on the sleeper 32 and fix the rail 5 to the sleeper 32 by means of the locking elements 6.
In order to further optimize the technical scheme, a ballast bed groove 11 is formed in the foundation ballast bed 1, and the broken stone adjusting layer 2 is paved in the ballast bed groove 11;
wherein the polymer composite track bed block 31 is integrally prefabricated by polymer materials such as polyurethane, epoxy resin and the like and the sleeper 32;
the height of various specifications can be prefabricated on the gravel adjusting layer 2 and the polymer composite ballast bed block 31.
According to the track adjusting structure, according to the deformation degree of the foundation ballast bed 1, a worker sequentially or simultaneously selects and changes the fasteners 4 with different thicknesses, the polymer composite ballast bed blocks 3 with different heights and the thickness of the crushed stone adjusting layer 2 to achieve the purpose of adjusting the height of the steel rail 5, so that the invention can realize the graded adjustment of the deformation of the foundation ballast bed 1 through the fasteners 4, the polymer composite ballast bed blocks 3 and the crushed stone adjusting layer 2.
According to the invention, the gravel adjusting layer 2 and the polymer composite track bed block 31 are sequentially arranged on the foundation track bed 1, the sleeper 32 is embedded at the upper part of the polymer composite track bed block 31, and the fastener 4 is correspondingly arranged on the sleeper 32 and the steel rail and the sleeper 32 are fixed through the locking piece 6, so that when the foundation track bed 1 is deformed, a worker can sequentially or simultaneously select and replace the fasteners 4 with different thicknesses, the polymer composite track bed blocks 31 with different heights and the thickness adjusting gravel adjusting layer 2 according to the deformation degree of the foundation track bed 1 to achieve the aim of adjusting the height of the steel rail, and the invention can realize the graded adjustment of the deformation of the foundation track bed 1 through the fastener 4, the polymer composite track bed block 31 and the gravel adjusting layer 2;
the deformation of the foundation ballast bed 1 can be adjusted in a grading manner, so that different adjustment modes can be sequentially or simultaneously selected according to the deformation degree of the foundation ballast bed 1, and the method is suitable for the section with the deformation overrun of the foundation ballast bed 1; meanwhile, the broken stone adjusting layer 2, the polymer composite ballast bed blocks 31 and the fasteners 4 are sequentially arranged from low to high, the fasteners 4 with different thicknesses and the polymer composite ballast bed blocks 31 with different heights are convenient to replace, and the thickness of the broken stone adjusting layer 2 is convenient to adjust, so that even if the foundation ballast bed 1 is continuously deformed, workers can timely and quickly adjust the deformation of the foundation ballast bed 1.
Therefore, the invention is suitable for the section with the deformation overrun and continuous development of the foundation ballast bed 1, and the height of the steel rail can be adjusted in time without daily maintenance such as screening and the like, thereby realizing the effect of simple and convenient operation.
The track adjusting structure comprises a track adjusting structure, a track adjusting structure and a forming process, wherein the track adjusting structure is formed by the following steps:
s1, prefabricating a polymer composite track bed block 31: the sleeper 32 is integrally prefabricated on the upper part of the polymer composite track bed block 31 to form a whole;
s2, forming a ballast bed groove 11 on the foundation ballast bed 1: digging and chiseling the foundation ballast bed 1 through a disc saw, a rope saw and other digging tools, and forming a ballast bed groove 11 to a preset depth;
s3, paving a broken stone adjusting layer 2 on the bottom of the ballast bed groove 11, compacting the broken stone adjusting layer 2, and adjusting the height of the steel rail 5 at the first stage through the broken stone adjusting layer 2;
s4, polymer composite track bed blocks 31 with corresponding thickness are arranged on the crushed stone adjusting layer 2 at intervals: the polymer composite ballast bed block 31 is contacted with the broken stone adjusting layer 2, the height of the polymer composite ballast bed block 31 reaches the notch of the ballast bed groove 11, and the second-stage height adjustment is carried out on the steel rail 5 through the polymer composite ballast bed block 3;
s5, fine adjustment is carried out on the height of the polymer composite track bed block 3: the fasteners 4 with corresponding thickness are uniformly arranged on the sleeper 32, the bottom ends of the steel rails 5 are pressed on the top ends of the polymer composite track bed blocks 3 through the fasteners 4, and the fasteners 4, the bottom ends of the steel rails 5 and the top ends of the polymer composite track bed blocks 3 are connected together through the fasteners 6, so that the fasteners 4 with the same thickness are arranged on the sleeper 32, the height of the polymer composite track bed blocks 3 is further accurately adjusted, namely, the third-level height adjustment is carried out on the steel rails 5 through the fasteners 4;
s6: the gap between every two adjacent polymer composite track bed blocks 3 is filled with a crushed stone filling layer, the filling height of the crushed stone filling layer is up to the notch of the track bed groove 11, the crushed stone filling layer filling the gap between the polymer composite track bed blocks 31 is laminated to be compact, and the density of the crushed stone filling layer is the same as that of the crushed stone adjusting layer 2.
The track adjusting structure is formed through the process, is simple in process and low in cost, is suitable for a section with overrun and continuous development of deformation of the foundation ballast bed 1, and is convenient for workers to timely and quickly adjust the deformation of the foundation ballast bed 1.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. The track adjusting structure comprises a sleeper (32) and a steel rail (5) fixed on the sleeper (32), wherein the sleeper (32) is fixed on a foundation ballast bed (1), and is characterized by comprising a broken stone adjusting layer (2), a polymer composite ballast bed block (3), a broken stone filling layer and a fastener (4);
the broken stone adjusting layer (2) is paved on the foundation ballast bed (1); the number of the polymer composite track bed blocks (31) corresponds to the number of the sleepers (32), the lower ends of the sleepers (32) are embedded in the upper parts of the polymer composite track bed blocks (31) in a one-to-one correspondence manner, and the bottom ends of the polymer composite track bed blocks (31) are arranged on the broken stone adjusting layer (2);
the broken stone filling layer is filled in gaps among the polymer composite track bed blocks (31); the fastener (4) is correspondingly arranged on the sleeper (32) and fixes the steel rail (5) and the sleeper (32) through the locking piece (6);
a ballast bed groove (11) is formed in the foundation ballast bed (1), and the broken stone adjusting layer (2) is paved in the ballast bed groove (11);
the high polymer composite track bed block (31) is integrally prefabricated by a high polymer material and a sleeper (32);
the high polymer material comprises, but is not limited to, polyurethane and epoxy resin;
the height of various specifications can be prefabricated on the crushed stone adjusting layer (2) and the polymer composite track bed block (31);
the compaction degree of the broken stone in the broken stone adjusting layer (2) and the broken stone filling layer is more than 1.75g/m 3 The particle size of the crushed stone ranges from 1.2cm to 63cm.
2. The track adjusting structure is formed by the following steps:
s1, prefabricating a polymer composite track bed block (31): prefabricating sleeper (32) integrally on the upper part of the polymer composite track bed block (31) to form a whole;
s2, a ballast bed groove (11) is formed in the foundation ballast bed (1): the foundation ballast bed (1) is excavated and removed through an excavating machine such as a disc saw, a rope saw and the like, and the ballast bed groove (11) is formed to a preset depth;
s3, paving a broken stone adjusting layer (2) on the bottom of the ballast bed groove (11), compacting the broken stone adjusting layer (2), and adjusting the height of the steel rail (5) at the first stage through the broken stone adjusting layer (2);
s4, arranging polymer composite track bed blocks (31) with corresponding thickness on the crushed stone adjusting layer (2) at intervals: contacting the polymer composite ballast bed block (31) with the crushed stone adjusting layer (2), and adjusting the height of the polymer composite ballast bed block (31) to the notch of the ballast bed groove (11) to carry out second-stage height adjustment on the steel rail (5) through the polymer composite ballast bed block (31);
s5, finely adjusting the height of the polymer composite track bed block (31): the fasteners (4) with corresponding thickness are uniformly arranged on the sleeper (32), the bottom ends of the steel rails (5) are pressed at the top ends of the polymer composite track bed blocks (31) through the fasteners (4), the bottom ends of the steel rails (5) and the top ends of the polymer composite track bed blocks (31) are connected together through the fasteners (6), so that the fasteners (4) with the corresponding thickness are arranged on the sleeper (32), and the height of the polymer composite track bed blocks (31) is further and accurately adjusted, namely, the third-level height adjustment is carried out on the steel rails (5) through the fasteners (4);
s6: filling a gravel filling layer in gaps between every two adjacent polymer composite track bed blocks (31), enabling the filling height of the gravel filling layer to reach the notch of the track bed groove (11), and enabling the gravel filling layer to fill and laminate the gaps between the polymer composite track bed blocks (31) to be compact, wherein the density of the gravel filling layer is the same as that of the gravel adjusting layer (2).
3. The track adjustment structure of claim 2, wherein in step S2, the cutting tool includes a disc saw and a rope saw.
4. The track adjustment structure according to claim 2, characterized in that in step S3, the crushed stone adjustment layer (2) is compacted to a compaction degree of more than 1.75g/m 3 。
5. A track adjustment structure according to claim 2, characterized in that in step S6 the crushed stone filling layer filling the gap between the composite ballast bed assemblies (3) is laminated to a compaction, and the density of the crushed stone filling layer is the same as the density of the crushed stone adjustment layer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910668315.6A CN110387775B (en) | 2019-07-23 | 2019-07-23 | Track adjusting structure and manufacturing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN111321637A (en) * | 2020-02-21 | 2020-06-23 | 中铁第一勘察设计院集团有限公司 | Track structure capable of being disassembled quickly |
| CN113338084B (en) * | 2021-07-13 | 2024-02-09 | 武汉坤能轨道***技术有限公司 | Failure remediation method suitable for pillow-free ballast bed direct-buried base plate |
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| CN107190583A (en) * | 2017-05-25 | 2017-09-22 | 中国铁道科学研究院铁道建筑研究所 | Urethane cures railway roadbed and preparation method thereof |
| CN107217550A (en) * | 2017-07-10 | 2017-09-29 | 中铁第四勘察设计院集团有限公司 | A kind of truss bars concrete folding plate, non-fragment orbit and construction method |
| CN108951306A (en) * | 2018-09-10 | 2018-12-07 | 北京市劳动保护科学研究所 | Ballast track railway roadbed and its construction method |
| CN211340218U (en) * | 2019-07-23 | 2020-08-25 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Track adjusting structure |
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| DE10325166B4 (en) * | 2003-06-04 | 2006-11-23 | Graf von der Schulenburg-Wolfsburg, Günzel, Dr. | Track construction for rail vehicles, especially railways |
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| CN107190583A (en) * | 2017-05-25 | 2017-09-22 | 中国铁道科学研究院铁道建筑研究所 | Urethane cures railway roadbed and preparation method thereof |
| CN107217550A (en) * | 2017-07-10 | 2017-09-29 | 中铁第四勘察设计院集团有限公司 | A kind of truss bars concrete folding plate, non-fragment orbit and construction method |
| CN108951306A (en) * | 2018-09-10 | 2018-12-07 | 北京市劳动保护科学研究所 | Ballast track railway roadbed and its construction method |
| CN211340218U (en) * | 2019-07-23 | 2020-08-25 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Track adjusting structure |
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