CN204311300U - A kind of urban track traffic concrete integral channel bed - Google Patents
A kind of urban track traffic concrete integral channel bed Download PDFInfo
- Publication number
- CN204311300U CN204311300U CN201420807549.7U CN201420807549U CN204311300U CN 204311300 U CN204311300 U CN 204311300U CN 201420807549 U CN201420807549 U CN 201420807549U CN 204311300 U CN204311300 U CN 204311300U
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- CN
- China
- Prior art keywords
- track traffic
- mesh sheet
- railway roadbed
- integral channel
- plain bars
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Abstract
The utility model discloses a kind of track traffic concrete integral channel bed, arrange the mesh sheet that upper strata adopts glass fiber reinforcement muscle or Basalt fiber composite rib to make in solid concrete roabed, the mesh sheet that lower floor adopts plain bars to make also to be arranged on railway roadbed below rail outline at least 300mm place.This kind of track traffic concrete integral channel bed is applicable to signal system and adopts in the urban track traffic of audio frequency naked Digital Track Circuit.First arrange double steel bar to arrange, mechanics meets the Reinforced Concrete Design requirement of solid concrete roabed upper and lower all tension or pressurized.Secondly, top adopts glass fiber reinforcement muscle or Basalt fiber composite rib, due to its good electricity, magnetic insulation, can ensure to adopt the signal system of audio frequency naked Digital Track Circuit not by electromagnetic induction interference, guarantee the reliability of signal system.Bottom adopts plain bars, meets the stray current drainage section requirement in the design of urban track traffic railway roadbed.Meanwhile, feasible economically.
Description
Technical field
The utility model relates to a kind of railway roadbed, is specially a kind of urban track traffic concrete integral channel bed.
Background technology
Railway roadbed is layed on the substructures such as roadbed, bridge or tunnel, the rubble under rail, sleeper or rest pad, boulder bed or layer of concrete, as the basis of rail or track-frame.Railway roadbed is divided into common ballast track bed, asphalt cemented ballast bed and concrete integral channel bed.Solid concrete roabed is often monolithic reinforced concrete structure, is usually used in on-deformable tunnel or on bridge, and because city track traffic engineering major part is on subterranean tunnel or viaduct, therefore concrete integral channel bed is comparatively conventional.Concrete integral channel bed can keep the kilter of track for a long time, safer reliable, smooth-going, reduces later period maintenance expense simultaneously greatlyr.
But at present based on the urban track traffic under the standard movable block signal system of FTGS digital audio non-insulated track circuit, because this system requirements requires that in railway roadbed, wire lath distance rail foot surface vertical distance is not less than 300mm.Cause reinforcement placement difficulty in solid concrete roabed, upper surface cannot arrange reinforcing bar, from uncontrollable railway roadbed external crack development, reduces the application life of railway roadbed.If solve this problem from the angle increasing upper layer reinforcing bar and increase signal system number of devices simultaneously, then cost is too large, and this signalling arrangement easily several ten million, double quantity, will bring huge cost.
Top reinforcement insulated separation in railway roadbed is become independently single steel bar by prior art, lower floor's steel mesh reinforcement distance rail foot surface meets semaphore request, top mat, due to mutually insulated, cannot form closed circuit, thus can not produce induced-current and then affect track circuit transmission distance.Prior art meets FTGS digital audio non-insulated track circuit system in theory and does the requirement of signal system signalling technique, and ballast bed structure is safe and reliable.But every 25m road bed unit needs installation 924 cross insulation clamps, and each clamp needs to test insulaion resistance.The global failure of 25m road bed unit can be had influence on because of indivedual places failure of insulation.To construction and supervision requirement high, field conduct affects construction speed to a certain extent.
Utility model content
The technical problems to be solved in the utility model overcomes existing defect, provides a kind of urban track traffic concrete integral channel bed, adopts civil engineering glass fiber reinforcement muscle or Basalt fiber composite rib to replace plain bars, thus solve the problem.
For achieving the above object, the utility model provides following technical scheme: a kind of urban track traffic concrete integral channel bed, comprise mixed dirt bed and be arranged on the plain bars mesh sheet of layer of concrete bottom inner portion, described plain bars mesh sheet to be all arranged on below tread face at least 300mm, described plain bars mesh sheet top arranges bolster rail or short tie, and described plain bars mesh sheet over top is provided with glass fiber reinforcement muscle or Basalt fiber composite rib mesh sheet.
Further, the arc tunnel that tunnel outer wall and tunnel inner wall form is provided with bottom described railway roadbed, the long 2400mm of described railway roadbed, high 740mm.
Further, described bolster rail or short tie two ends are provided with guide rail matrix.
Further, the described plain bars mesh sheet of described railway roadbed inside forms the electric current collection net collected and discharge stray electrical current in railway roadbed.
Compared with prior art, the beneficial effects of the utility model are: this kind of urban track traffic concrete integral channel bed is for adopting in the urban track traffic of audio frequency naked Digital Track Circuit, first arrange double steel bar to arrange, mechanics meets the Reinforced Concrete Design requirement of solid concrete roabed upper and lower all tension or pressurized.Secondly, top adopts civil engineering glass fiber reinforcement muscle or Basalt fiber composite rib, due to its good electricity, magnetic insulation, can ensure to adopt audio frequency naked Digital Track Circuit not by electromagnetic induction interference, strengthen the reliability of track circuit system.Bottom adopts plain bars, meets the stray current drainage section requirement in the design of urban track traffic railway roadbed.
Civil engineering glass fiber reinforcement muscle or the Basalt fiber composite rib market price per ton be the 3-4 doubly left and right of the equivalent diameter reinforcing bar market price, but, because its density is only 1/4th of reinforcing bar.The 3-4 double-length using length to be plain bars per ton, therefore from use price, very nearly the same, feasible economically.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in detail, to make above-mentioned advantage of the present utility model definitely.
Fig. 1 is a kind of urban track traffic concrete integral channel bed bolster rail structural representation described in the utility model;
Fig. 2 is the short tie structural representation of a kind of urban track traffic concrete integral channel bed described in the utility model.
In figure: 1, railway roadbed; 2, tread face; 3, glass fiber reinforcement muscle or Basalt fiber composite rib mesh sheet; 4, guide rail matrix; 5, tunnel outer wall; 6, tunnel inner wall; 7, bolster rail; 8, plain bars mesh sheet/electric current collection net; 10, short tie; 11, layer of concrete.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment; technical scheme in the utility model embodiment is clearly and completely described; obviously; described embodiment is only the utility model part embodiment; instead of whole embodiments; based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1-2, the utility model provides a kind of technical scheme: a kind of urban track traffic concrete integral channel bed, comprise mixed dirt bed 11 and be arranged on the plain bars mesh sheet 8 of layer of concrete 11 bottom inner portion, plain bars mesh sheet 8 to be all arranged on below tread face 2 at least 300mm, plain bars mesh sheet 8 top is arranged bolster rail 7 or short tie 10, plain bars mesh sheet 8 over top is provided with civil engineering glass fiber reinforcement muscle (GFRP) or Basalt fiber composite rib mesh sheet 3.
The arc tunnel that tunnel outer wall 5 forms with tunnel inner wall 6 is provided with, the long 2400mm of railway roadbed 1, high 740mm bottom railway roadbed 1.Bolster rail 7 or short tie 10 two ends are provided with guide rail matrix 4.The described plain bars mesh sheet 8 of railway roadbed 1 inside forms the electric current collection net 8 collected and discharge stray electrical current in railway roadbed.
Concrete principle: top reinforcement adopts civil engineering glass fiber reinforcement muscle (GFRP) or Basalt fiber composite rib mesh sheet 3 to replace.Civil engineering glass fiber reinforcement muscle (GFRP) or Basalt fiber composite rib mesh sheet 3 intensity high, easily cut, also there is good electricity, magnetic insulation, good endurance simultaneously, not perishable.The civil engineering mechanical property of glass fiber reinforcement muscle (GFRP) or Basalt fiber composite rib mesh sheet 3 and plain bars 8 indifference, force request meets effect completely that replace upper layer reinforcing bar.Glass fiber reinforcement muscle mesh sheet 3 extensive use in continuous reinforced concrete pavement, effectively controls the expansion of pavement crack spacing.
Upper strata muscle adopts civil engineering glass fiber reinforcement muscle (GFRP) or Basalt fiber composite rib mesh sheet 3 to meet the requirement of FTGS digital audio non-insulated track circuit system completely, simultaneously, to the formation in the crack on railway roadbed 1 top, development defines control, extends the application life of railway roadbed 1 and decreases the expense of later maintenance repairing.Lower floor's reinforcing bar still adopts plain bars mesh sheet 8, meets the requirement of Stray Current in Urban Rail Transit corrosion protection drainage section.This structure is fully effective to be solved in current urban track traffic based on the circuit solid concrete roabed cloth muscle problem under the standard movable block signal system of FTGS digital audio non-insulated track circuit or under similar principles.
Current civil engineering glass fiber reinforcement muscle (GFRP) or the Basalt fiber composite rib market price per ton be the 3-4 doubly left and right of the equivalent diameter reinforcing bar market price, because its density is only 1/4th of reinforcing bar, the 3-4 double-length using length to be plain bars per ton, therefore from use price, very nearly the same, feasible economically.
The utility model is that a kind of urban track traffic concrete integral channel bed is for adopting in the urban track traffic of audio frequency naked Digital Track Circuit, first arrange double steel bar to arrange, mechanics meets the Reinforced Concrete Design requirement of solid concrete roabed upper and lower all tension or pressurized.Secondly, top adopts civil engineering glass fiber reinforcement muscle (GFRP) or Basalt fiber composite rib, due to its good electricity, magnetic insulation, can ensure to adopt audio frequency naked Digital Track Circuit not by electromagnetic induction interference, strengthen the reliability of track circuit system.Bottom adopts plain bars, meets the drainage section requirement in the design of urban track traffic railway roadbed.
Civil engineering glass fiber reinforcement muscle (GFRP) or the Basalt fiber composite rib market price per ton be the 3-4 doubly left and right of the equivalent diameter reinforcing bar market price, but, because its density is only 1/4th of reinforcing bar.The 3-4 double-length using length to be plain bars per ton, therefore from use price, very nearly the same, feasible economically.
Last it is noted that the foregoing is only preferred embodiment of the present utility model; be not limited to the utility model; although be described in detail the utility model with reference to previous embodiment; for a person skilled in the art; it still can be modified to the technical scheme described in foregoing embodiments; or equivalent replacement is carried out to wherein portion of techniques feature; all within spirit of the present utility model and principle; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a urban track traffic concrete integral channel bed, it is characterized in that: comprise layer of concrete and be arranged on the plain bars mesh sheet of layer of concrete bottom inner portion, described plain bars mesh sheet to be all arranged on below tread face at least 300mm, described plain bars mesh sheet top arranges bolster rail or short tie, and described plain bars mesh sheet over top is provided with glass fiber reinforcement muscle or Basalt fiber composite rib mesh sheet.
2. a kind of urban track traffic concrete integral channel bed according to claim 1, is characterized in that: be provided with the arc tunnel that tunnel outer wall and tunnel inner wall form bottom described railway roadbed, the long 2400mm of described railway roadbed, high 740mm.
3. a kind of urban track traffic concrete integral channel bed according to claim 1, is characterized in that: described bolster rail or short tie two ends are provided with guide rail matrix.
4. a kind of urban track traffic concrete integral channel bed according to claim 1, is characterized in that: the described plain bars mesh sheet of described railway roadbed inside forms the electric current collection net collected and discharge stray electrical current in railway roadbed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420807549.7U CN204311300U (en) | 2014-12-19 | 2014-12-19 | A kind of urban track traffic concrete integral channel bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420807549.7U CN204311300U (en) | 2014-12-19 | 2014-12-19 | A kind of urban track traffic concrete integral channel bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204311300U true CN204311300U (en) | 2015-05-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420807549.7U Expired - Fee Related CN204311300U (en) | 2014-12-19 | 2014-12-19 | A kind of urban track traffic concrete integral channel bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204311300U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023177844A1 (en) * | 2022-03-18 | 2023-09-21 | Craig Alfred B | Stray current mitigation assemblies having a carbon conduction subassembly |
-
2014
- 2014-12-19 CN CN201420807549.7U patent/CN204311300U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023177844A1 (en) * | 2022-03-18 | 2023-09-21 | Craig Alfred B | Stray current mitigation assemblies having a carbon conduction subassembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150506 Termination date: 20151219 |
|
| EXPY | Termination of patent right or utility model |