CN110616597A - CRTS IV type track slab and manufacturing method thereof - Google Patents
CRTS IV type track slab and manufacturing method thereof Download PDFInfo
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- CN110616597A CN110616597A CN201911017092.3A CN201911017092A CN110616597A CN 110616597 A CN110616597 A CN 110616597A CN 201911017092 A CN201911017092 A CN 201911017092A CN 110616597 A CN110616597 A CN 110616597A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
-
- 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
- E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
-
- 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
- E01B2204/09—Ballastless systems
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention relates to a CRTS IV type track slab and a manufacturing method thereof, belonging to the technical field of railway tracks, comprising a track slab body, wherein structural steel bars of the track slab body are replaced by non-metallic basalt fiber composite material bars, so that the problem that the transmission distance of a track circuit is influenced by induced current and induced magnetic field generated by a closed power-on loop formed by a steel bar net in the prior art can be solved; meanwhile, the nonmetal basalt fiber composite material is adopted to replace the steel bar, so that the weight of the track slab can be reduced; the track slab body is made of light high-strength concrete, and the high-temperature high-pressure concrete curing process is combined, so that the strength of the track slab is ensured, and the weight of the track slab can be greatly reduced; the track plate structure is embedded continuous supporting structure, adopts polymer damping material parcel locking rail, can greatly improve the comprehensive dynamic response performance of rail, can effectively eliminate wheel rail vibration source, effectively restraines the rail corrugation and produces, and the reinforcing vibration attenuation falls the performance of making an uproar, improves the life of rail and steel wheel.
Description
Technical Field
The invention relates to the technical field of railway tracks, in particular to a CRTS IV-type track slab and a manufacturing method thereof.
Background
The track slab is a novel under-track component in the structural form of a slab for supporting and securing a rail and distributing the load transmitted by a train through the rail to an under-slab foundation.
The ballastless track slab is a track structure which adopts integral foundations such as concrete and asphalt mixture to replace a loose gravel track bed, avoids splashing of the railway ballast, and has the advantages of good smoothness, good stability, long service life, good durability, less maintenance work and high train running speed of more than 350 kilometers.
The ballastless track bed adopts a reinforced concrete integral structure, the longitudinal and transverse reinforcements inside the ballastless track bed are horizontally and vertically lapped and fixed into a net, mutual inductance is easily formed between the ballastless track bed and a track circuit, the impedance of a steel rail is increased, the inductance is small, the transmission performance of a resonant type uninsulated track circuit is reduced, the transmission distance and the transmission speed of track signals are further influenced, if the transmission characteristic of the track circuit basically identical to that of a ballasted track is achieved, insulation treatment must be carried out on the reinforcement of the track plate, closed loops formed by the reinforcement inside the track plate are reduced or eliminated as much as possible, and the transmission characteristic of the resonant type uninsulated track circuit under the ballastless track structural condition can be effectively improved.
At present, methods for insulating nodes of reinforcing meshes in a track slab include an insulating buckle mode, a unidirectional epoxy coating, a bidirectional epoxy coating and the like. The methods have the advantages of complex construction process and high production cost, reduce the adhesive force between the reinforcing steel bars and the concrete and influence the comprehensive performance of the structure. In addition, the insulation by adopting the coating mode allows three leakage points within the range of 1 meter, and more than 3 leakage points inevitably occur within the range of 1 meter because the surface of the steel bar adopts the macromolecule coarse grain heating, stacking and forming process technology; the insulating buckle mode is that the rail plate reinforcing mesh cross nodes adopt insulating clips, and the positions where the surfaces of the reinforcing steel bars are not wrapped by insulation are leakage points. The track plate is wet in rainwater all the year round, after the concrete of the track plate absorbs water, the concrete is easily changed into a semiconductor and a conductor, a leakage point becomes a short circuit point, a metal loop parallel to the steel rail is gradually formed, and the formed induced circuit and the induced magnetic field inevitably influence the transmission performance of the track circuit.
The double-block ballastless track, CRTS I type, CRTS II type and CRTS III type plate ballastless tracks are widely applied to high-speed railways or passenger special lines in China. The track slabs of the CRTS I type, CRTS II type and CRTS III type slab ballastless tracks are all of prestressed structures. However, the steel rail supports of these track plate structures are all in a fastener type discontinuous support mode, and the design of the train load decreasing and distributing load bearing principle is adopted, so that a pined-pined impact vibration peak value is inevitably generated, the contact relation between the wheel and the rail is not good, and the abrasion of the wheel and the rail is large.
Disclosure of Invention
The invention aims to provide a CRTS IV type track slab and a manufacturing method thereof, wherein the CRTS IV type track slab can solve the problem that a closed power-on loop is formed by a reinforcing mesh to influence the transmission of a track circuit; the track slab obtained by the manufacturing method can ensure the strength of the track slab and reduce the weight of the track slab.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the CRTS IV type track slab comprises a track slab body, and structural steel bars of the track slab body are replaced by nonmetal basalt fiber composite material bars.
Preferably, the length of the track plate body is 3800mm-4800mm, the width is 1800mm-2400mm, and the thickness is 180mm-230 mm.
Furthermore, two concave rail bearing grooves are formed in the top surface of the rail plate body.
Furthermore, longitudinal groove blocking blocks are arranged on two sides of the rail bearing groove, and the rail bearing groove and the longitudinal groove blocking blocks on the two sides of the rail bearing groove form an embedded groove for embedding the steel rail assembly.
Further preferably, the longitudinal groove blocking blocks on two sides of the rail bearing groove are in a segmented split mounting type.
Preferably, the depth of the caulking groove is 130mm-160 mm; the longitudinal groove blocking block is matched with the steps of the track plate body in a positioning mode, and the distance between the bottom surface of the rail bearing groove and the top surface of the longitudinal groove blocking block is 130mm-160 mm.
Furthermore, the longitudinal groove blocking block is connected with the track plate body through bolts.
A plurality of bolt sleeves are embedded in the positions, corresponding to the longitudinal groove blocking blocks, on the track plate body, and the bolt sleeves are longitudinally arranged along two sides of the track bearing groove at intervals.
The method for manufacturing the CRTS IV-type track slab comprises the steps of manufacturing a track slab body by using lightweight high-strength concrete, wherein the lightweight high-strength concrete adopts ceramic as coarse aggregate, and the mixing amount of the ceramic is 40-50%.
Further, in the manufacturing process of the track slab body, high-temperature and high-pressure curing is carried out after the concrete is initially set, the temperature of the high-temperature and high-pressure curing process is 180-210 ℃, the pressure is 10 atmospheric pressures, and the curing time is 8-11 hours.
Compared with the prior art, the invention has the following beneficial effects:
the method has the advantages that the nonmetal basalt fiber composite material ribs are used for replacing insulated steel bars to prepare the track slab, so that the problems that a closed power-on loop is formed by a potential steel bar net in the prior art, and the transmission distance of a track circuit is influenced by induced current and an induced magnetic field generated by the closed power-on loop can be thoroughly solved and overcome; meanwhile, the nonmetal basalt fiber composite material is adopted to replace the steel bar, so that the weight of the track slab can be reduced;
2, the track slab body is made of special ceramic lightweight high-strength concrete, and the high-temperature high-pressure concrete curing process is combined, so that the strength of the track slab can be increased, the curing time can be shortened, and the weight of the track slab can be greatly reduced.
3, the invention can continuously support the steel rail, the steel rail is installed in an embedded manner, the steel rail is wrapped and locked by adopting the macromolecular damping material, the pined-pined mode of the wheel rail can be basically eliminated, the vibration source generated under the action of external force is eliminated, the dynamic stress of the wheel rail is reduced, the contact relation of the wheel rail is improved, the wave abrasion of the steel rail is effectively inhibited, the abrasion of the wheel rail is greatly reduced, the service life of the wheel rail is prolonged, the anti-seismic performance of a track structure is also improved, the unique damping characteristic of the steel rail is improved, the longitudinal, transverse and vertical attenuation rate of the track is improved, the longitudinal, transverse and vertical transmission of the steel rail along the steel rail can be effectively reduced, and the comfort level of passengers is improved.
Drawings
Fig. 1 is a top view of a track plate body according to an embodiment;
fig. 2 is a top view of a track plate body according to a second embodiment;
fig. 3 is a side view of a track plate body according to a second embodiment;
FIG. 4 is a plan view of the third embodiment;
FIG. 5 is a side view of FIG. 4;
FIG. 6 is a side view of the longitudinal groove stopper of the outer side in the third embodiment;
fig. 7 is a side view of the track plate body in the third embodiment;
FIG. 8 is a schematic view of the rail assembly when installed in a caulking groove;
FIG. 9 is an enlarged view at A in FIG. 8;
FIG. 10 is a top view of the fourth embodiment;
in the figure: the track slab comprises a track slab body 1, a longitudinal groove blocking block 2, a bolt 3, a caulking groove 4, a rail bearing groove 11, a bolt sleeve 12, a first concave part 13, a second concave part 14, a convex part 21, an elastic cushion plate 51, a height adjusting plate 52, a long steel rail 53, a high polymer damping material 54 and a noise reduction block 55.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings.
Example one
As shown in fig. 1, the CRTS iv track slab disclosed in this embodiment includes a track slab body 1, and the structural steel bars of the track slab body 1 are replaced by non-metallic basalt fiber composite material bars. In the embodiment, the structural steel bars are made of nonmetal basalt fiber composite materials, so that a closed power-on loop formed by a steel bar net in the prior art can be overcome, and the problem of influencing the transmission of a track circuit is avoided; compared with the mode of installing an insulating buckle and arranging an insulating coating in the prior art, the manufacturing process is simple, and the manufacturing difficulty is smaller.
In the embodiment, the basalt fiber composite material rib is a fiber rib material formed by impregnating and curing basalt fibers through a special manufacturing process and surface treatment and combined resin.
The dimensions of the track plate body 1 are set as desired. Preferably, the length of the track plate body 1 is 3800mm-4800 mm.
This example provides reference to four models, model a, model B, model C and model D.
Type A:
1, standard rails are 4 meters long, the length of a track plate body is 4800mm, self-compacting concrete is fully filled under the plate during construction, and the plate is fully supported;
2, matching 60kg/m rail;
3, the width of the track plate body 1 is 1800-2400mm, and the plate thickness is 180-230 mm;
type B:
1, standard rail 4 m plate length system, track plate body 1 length 3800mm, self-compacting concrete adopted under the plate during construction, full filling and comprehensive support;
2, matching 60kg/m rail;
3, the width of the track plate body 1 is 1800-2400mm, and the plate thickness is 180-230 mm.
Type C: the size of the track slab is the same as the external size of the A-type track slab, and the C-type track slab body 1 is a frame slab with the internal width of 700 mm; during construction, self-compacting concrete is adopted under the plate, full filling is realized, and the frame solid plate surface is correspondingly and comprehensively supported.
Type D: the dimension of the track slab body is the same as the dimension of the B-shaped outer shape, the D-shaped track slab body 1 is a frame slab, the inner width is 700mm, self-compacting concrete is fully filled under the slab during construction, and the lower part of the frame slab is correspondingly and comprehensively supported.
In the embodiment, the concrete is light high-strength concrete, the light high-strength concrete adopts ceramic as a coarse aggregate, and the mixing amount of the ceramic is 40-50%.
In the method for manufacturing the CRTS iv track slab disclosed in this embodiment, a steel mold matched with the track slab body 1 needs to be manufactured in the early stage. The production process of the post-tensioning prestressing method is introduced as follows, which mainly comprises the following steps:
s1, binding a reinforcement cage framework of the track slab body 1, merging the reinforcement cage framework into a steel die, wherein the reinforcement cage framework is made of nonmetal basalt fiber composite material ribs;
s2, installing a corrugated pipe and a liner pipe or other pipelines at the corresponding position of the post-tensioned prestressed duct, wherein the liner pipe or other pipelines are exposed;
s3, pouring concrete, after initial setting,
and (3) driving a 6x3 steel die transportation flat car into a reaction kettle for high-temperature and high-pressure steam curing for 8 to 11 hours at the temperature of between 180 and 210 ℃ and under the pressure of 10 atmospheric pressures.
S4, demolding, hanging out the track slab body 1, and verifying; taking out the liner tube;
and S5, tensioning the prestressed reinforcement and continuously maintaining. The method comprises the following specific steps;
s5.1, penetrating prestressed reinforcement bundles in post-tensioned prestressed ducts;
s5.2, tensioning the prestressed reinforcement bundles by using a jack;
and S5.3, adopting high polymer concrete to perform prestressed reinforcement anchor hole sealing, hanging the rail plate beam after sealing into the water culture pond, and continuing water culture and natural culture.
If the pre-tensioned prestressed steel bar method is adopted, the pre-tensioned prestressed steel bar anchor locking mechanism is touched around the steel film, and is matched with automatic tensioning equipment and automatic releasing equipment of corresponding stations on an automatic production line, so that the pre-stressed tensioning and releasing process can be completed. A pre-tensioning method: directly completing synchronous tension releasing work by automatic tension releasing equipment at a tension releasing station, then entering a demolding station to complete demolding, hanging out the steel mold from the track slab, and performing anchor sealing and inspection; then, a 6x3 steel die set steel die transport flat car is driven into a reaction kettle for high-temperature high-pressure steam curing for 8 to 11 hours, the temperature is 180 to 210 ℃, and the pressure is 10 atmospheric pressures.
In the embodiment, the concrete is light high-strength concrete, and the high-temperature high-pressure concrete curing process is combined, so that the volume weight of the concrete can be reduced to be within 1600 kg/cube from 2500 kg/cube without increasing the original concrete cost, the mixing amount is 40-50%/cubic meter, the application field of the concrete member is greatly improved, the concrete strength can reach more than C90 and even can reach C120, and the problem of track slab cracking caused by strong impact and strong fatigue can be effectively solved.
Example two
The difference between this embodiment and the first embodiment is: as shown in fig. 2 and 3, in the embodiment, two concave rail supporting grooves 11 are formed on the top surface of the rail plate body 1, and when the rail plate is used, the rail is laid in the rail supporting grooves 11, so that continuous supporting can be provided for the rail, the contact relationship between the wheel and the rail can be improved, the pined-pined mode of the wheel and the rail can be eliminated, the vibration source of the wheel and the rail can be eliminated, the dynamic stress of the wheel and the rail can be reduced, and the service lives of the rail and the steel wheel can be prolonged.
The rail groove 11 is dimensioned as required. For four plate types in the first embodiment, the first embodiment provides reference to the sizes of the corresponding rail bearing grooves 11, the center distance between the two rail bearing grooves 11 is 1435mm, the width of the rail bearing groove 11 is 200mm, and the distance from the bottom of the rail bearing groove 11 to the top surface of the rail plate body 1 is 30 mm.
EXAMPLE III
The difference between this embodiment and the second embodiment is: as shown in fig. 4 and 5, in the present embodiment, the longitudinal chock blocks 2 are disposed on both sides of the rail receiving groove 11, the rail receiving groove 11 and the longitudinal chock blocks 2 on both sides thereof form the caulking groove 4 for inserting the rail assembly, and the width of the rail receiving groove 11 is the width of the caulking groove 4. The longitudinal groove blocking blocks 2 can be integrally manufactured to be equal to the track slab body 1 in length, and can also be assembled after being prefabricated in sections.
In the embodiment, the longitudinal groove blocking block 2 is connected with the track plate body 1 through a bolt 3. Therefore, when the steel rail is maintained or replaced in the later period, the longitudinal groove blocking block 2 and the steel rail can be taken down together, and the maintenance and the replacement are convenient and fast. A plurality of bolt sleeves 12 are embedded in the track plate body 1 corresponding to the central line of the longitudinal groove blocking block 2, and the bolt sleeves 12 are longitudinally arranged along two sides of the track bearing groove 11 at intervals.
The construction efficiency is improved for convenient and rapid assembly. The longitudinal groove blocking block 2 is matched with the steps of the track plate body 1 in a positioning mode. The specific structure is as shown in fig. 5, 6 and 7, the bottom surfaces of the two outer longitudinal groove blocking blocks 2 are provided with a convex part 21, the top surface of the track plate body 1 is provided with a first concave part 13 matched with the convex part 21, the convex part 21 is positioned at the inner side of the longitudinal groove blocking block 2, and the convex part 21 is arranged in the first concave part 13. The top surface of the track slab body 1 is provided with a second concave part 14 corresponding to the positions of the two longitudinal groove blocking blocks 2 at the inner side, and the bottom of the longitudinal groove blocking block 2 at the inner side is arranged in the second concave part 14. The first recess 13, the rail groove 11, and the second recess 14 are continuous.
The inner longitudinal groove blocking block 2 refers to two longitudinal groove blocking blocks 2 located between the two rail bearing grooves 11; the outer longitudinal notch blocks 2 are the two longitudinal notch blocks 2 located outside the two rail grooves 11.
The dimensions of the rail groove 11 and the longitudinal notch block 2 are set as desired. In the embodiment, the depth of the caulking groove 4 formed by the rail bearing groove 11 and the longitudinal groove blocking blocks 2 on the two sides of the rail bearing groove is 130mm-160 mm; the height of the convex part 21 is 30mm, the depth of the first concave part 13 is 30mm, and the depth of the second concave part 14 is 30 mm; the distance between the bottom surface of the rail bearing groove 11 and the top surface of the rail plate body is 60 mm. The height of the longitudinal groove blocking blocks 2 at the inner side and the outer side, which are exposed out of the top surface of the track slab body 1, is 70mm-100 mm.
For four plate types in the first embodiment, the present embodiment provides reference to the size of the corresponding longitudinal groove stopper 2.
The width of the longitudinal groove blocking block 2 at the outer side is 382.5mm, and the width of the longitudinal groove blocking block 2 at the inner side is 225mm-230 mm; the horizontal distance between the two longitudinal groove blocking blocks 2 at the inner side is 775 mm.
As shown in fig. 5, 8 and 9, in use, the track plate body 1 is laid along a track line, the rail assembly 5 is laid along the rail receiving groove 11, and the rail assembly 5 is fitted into the caulking groove 4 formed by the rail receiving groove 11 and the longitudinal stopper 2.
The rail assembly 5 comprises a long rail 53, an heightening plate 52 and an elastic base plate 51, wherein the elastic base plate 51 is laid in the rail bearing groove 11, the long rail 53 is laid above the elastic base plate 51, the lengths of the elastic base plate 51 and the long rail 53 are both larger than the length of the plate body 1, the heightening plate 52 is arranged between the elastic base plate 51 and the long rail 53, the two sides of the long rail 53 are provided with isometric noise reduction blocks 55, and the noise reduction blocks 55 are made of sound absorption materials or sound absorption structures and can play a role in absorbing sound and reducing noise. The bottom of the noise reduction block 55 is in contact with the rail bottom of the steel rail, and the top of the noise reduction block 55 extends to the lower portion of the rail head of the steel rail, so that the noise reduction block has a certain supporting effect on the steel rail. The space between the steel rail component 5 and the groove wall of the caulking groove 4 is filled with a polymer damping material 54.
In this embodiment, the steel rail assembly is embedded into the concrete track slab, and the steel rail is locked by using the elastic backing plate 51 for continuous support and the polymer damping casting material, so as to further reduce the vibration of the vehicle.
The high molecular damping material 54 continuously locks the steel rail, the locking force of the high molecular damping material is 6-10 times of that of the fastener, the fracture value of the steel rail is 1/10-1/6 of the fastener theoretically, the derailment risk after the rail is broken is greatly reduced, the safety of the rail is better, and the novel requirements of small-earthquake damage prevention, medium-earthquake repairability and large-earthquake overhaul can be met.
Example four
The difference between this embodiment and the third embodiment is that: as shown in fig. 10, in the present embodiment, the longitudinal groove blocking blocks 2 on both sides of the rail supporting groove 11 are in a segmented assembly type, and the longitudinal groove blocking blocks 2 are prefabricated in segments, so that the longitudinal groove blocking blocks can be conveniently assembled on the rail plate body 1 during construction.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore intended that all such changes and modifications as fall within the true spirit and scope of the invention be considered as within the following claims.
Claims (10)
- The CRTS IV-type track slab comprises a track slab body and is characterized in that: the structural steel bars of the track slab body are replaced by nonmetal basalt fiber composite material bars.
- 2. The CRTS type iv track board of claim 1, wherein: the length of the track plate body is 3800mm-4800mm, the width is 1800mm-2400mm, and the thickness is 180mm-230 mm.
- 3. The CRTS type iv track board of claim 1, wherein: the top surface of the track slab body is provided with two concave track bearing grooves.
- 4. The CRTS type iv track board of claim 3, wherein: the both sides of support rail groove all are provided with vertical manger plate piece, and support rail groove constitutes the caulking groove that is used for inlaying the dress rail subassembly rather than the vertical manger plate piece of both sides.
- 5. The CRTS type IV track board of claim 4, wherein: the longitudinal groove blocking blocks on the two sides of the rail bearing groove are in a segmented assembling type.
- 6. A CRTS type IV track board as claimed in claim 4 or 5, wherein: the depth of the caulking groove is 130mm-160 mm; the longitudinal groove blocking block is matched with the steps of the track plate body in a positioning mode, and the distance between the bottom surface of the rail bearing groove and the top surface of the longitudinal groove blocking block is 130mm-160 mm.
- 7. A CRTS type IV track board as claimed in claim 4 or 5, wherein: and the longitudinal groove blocking block is connected with the track plate body through a bolt.
- 8. The CRTS type iv track board of claim 7, wherein: a plurality of bolt sleeves are pre-embedded in positions, corresponding to the longitudinal groove blocking blocks, on the track plate body, and the bolt sleeves are longitudinally arranged along two sides of the track bearing groove at intervals.
- 9. The method of making a CRTS iv track slab as claimed in any one of claims 1 to 8, wherein: the concrete used for manufacturing the track slab body is light high-strength concrete, the light high-strength concrete adopts ceramic as coarse aggregate, and the mixing amount of the ceramic is 40-50%.
- 10. The method of manufacturing according to claim 9, wherein: in the manufacturing process of the track plate body, high-temperature and high-pressure curing is carried out after the concrete is initially set, the temperature of the high-temperature and high-pressure curing process is 180-210 ℃, the pressure is 10 atmospheric pressures, and the curing time is 8-11 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911017092.3A CN110616597A (en) | 2019-10-24 | 2019-10-24 | CRTS IV type track slab and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911017092.3A CN110616597A (en) | 2019-10-24 | 2019-10-24 | CRTS IV type track slab and manufacturing method thereof |
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| CN110616597A true CN110616597A (en) | 2019-12-27 |
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| CN201911017092.3A Pending CN110616597A (en) | 2019-10-24 | 2019-10-24 | CRTS IV type track slab and manufacturing method thereof |
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| WO2018141024A1 (en) * | 2017-02-06 | 2018-08-09 | University Of Wollongong | Track foundation |
| CN108842290A (en) * | 2018-07-03 | 2018-11-20 | 陈祚 | A kind of track plates nonmetallic reinforcing rib and preparation method thereof |
| CN109053109A (en) * | 2018-09-26 | 2018-12-21 | 广西旭腾实业集团有限公司 | A kind of high strength light aggregate concrete and preparation method thereof |
| CN110029530A (en) * | 2019-04-02 | 2019-07-19 | 成都市新筑路桥机械股份有限公司 | A kind of novel track system |
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| CN201760959U (en) * | 2010-09-07 | 2011-03-16 | 江南大学 | Automatic temperature-control system for rail plate steam curing |
| EP3067464A1 (en) * | 2015-03-13 | 2016-09-14 | Colas Rail | Railway track on longitudinal sleepers, manufacturing method |
| JP2016183468A (en) * | 2015-03-25 | 2016-10-20 | 公益財団法人鉄道総合技術研究所 | Structure and method for restraining track displacement |
| WO2018141024A1 (en) * | 2017-02-06 | 2018-08-09 | University Of Wollongong | Track foundation |
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| CN109053109A (en) * | 2018-09-26 | 2018-12-21 | 广西旭腾实业集团有限公司 | A kind of high strength light aggregate concrete and preparation method thereof |
| CN110029530A (en) * | 2019-04-02 | 2019-07-19 | 成都市新筑路桥机械股份有限公司 | A kind of novel track system |
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