CN203487418U - Subgrade surface reinforcement waterproof structure of ballastless track high speed railway - Google Patents
Subgrade surface reinforcement waterproof structure of ballastless track high speed railway Download PDFInfo
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- CN203487418U CN203487418U CN201320592913.8U CN201320592913U CN203487418U CN 203487418 U CN203487418 U CN 203487418U CN 201320592913 U CN201320592913 U CN 201320592913U CN 203487418 U CN203487418 U CN 203487418U
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Abstract
The utility model discloses a subgrade surface reinforcement waterproof structure of a ballastless track high speed railway. The subgrade surface reinforcement waterproof structure comprises a concrete reinforced structure layer and joint filling materials. The concrete reinforced structure layer is arranged on the top surface of the surface layer of a subgrade between a ballastless track supporting layer and a cable trough. The concrete reinforced structure layer is composed of a concrete layer coated with a galvanized wire mesh, the thickness of the concrete reinforced structure layer is 80-100mm, horizontal expansion joints are arranged on the concrete reinforced structure layer every 5m, and the joint filling materials are arranged in the horizontal expansion joints in a filling mode. Longitudinal structure joints between the concrete reinforced structure layer and the ballastless track supporting layer and between the concrete reinforced structure layer and the cable trough are filled with the joint filling materials. The joint filling materials in the horizontal expansion joints and the longitudinal structure joints comprise polyethylene plates for joint filling, polyethylene rods for backing and polyurethane adhesives for sealing from bottom to top. The subgrade surface reinforcement waterproof structure of the ballastless track high speed railway has the advantages of being large in strength, high in anti-cracking ability, good in waterproof performance, simple in construction and the like, is particularly suitable for water resistance of subgrade surfaces in cold regions, and is beneficial to safety operation of the ballastless track high speed railway.
Description
Technical field
The utility model relates to railway subgrade works, particularly relates to non-fragment orbit high-speed railway subgrade face waterproof construction.
Background technology
Along with the fast development of high-speed railway, non-fragment orbit is used widely with the advantage of its high ride and few maintenance, also stability and the sedimentation and deformation on basis under non-fragment orbit line has been proposed to stricter requirement.Anti-water seal is to ensure one of the stability on basis under railway line and important technique measure of settlement prevention distortion.
Water is the key factor that causes the subgrade defects such as soil subgrade bedding is risen soil, freeze injury, and ballastless track roadbed face need to carry out anti-water seal.At present, the waterproof measure of road bed is mainly that asphalt concrete structure waterproofing course and waterproof concrete structure layer are set on road bed, because bituminous concrete work plane is narrow, especially short circuit base section rolls difficulty, and intensity is lower, and construction quality is wayward, the road bed later stage of concrete structure is prone to the phenomenons such as efflorescence, cracking, cold district is particularly serious, and waterproof effect is not good, and this becomes the hidden danger of non-fragment orbit high-speed railway safe operation.
Summary of the invention
Problem for the easy waterproof cracking of current non-fragment orbit high-speed railway subgrade face, infiltration, the utility model has been released a kind of road bed reinforcement waterproof construction, by the reinforcement Waterproof structural course of concrete parcel galvanized wire mesh is set on road bed, improved the intensity of structure, avoid the efflorescence of road bed waterproof construction, cracking, the vertical structure of reinforcement Waterproof structural course seam and transverse expansion joint are filled sealing simultaneously, have promoted the waterproof effect of non-fragment orbit road road bed.
The non-fragment orbit high-speed railway subgrade face reinforcement waterproof construction that the utility model relates to comprises concrete reinforced structure layer and seam body inserts, concrete reinforced structure is placed on the roadbed top layer end face between non-fragment orbit supporting layer and cable channel, concrete reinforced structure layer consists of the layer of concrete that wraps up galvanized wire mesh, in concrete reinforced structure layer, transverse expansion joint is set, in transverse expansion joint, fill seam body inserts, the vertical structure seam between layer of concrete reinforced structure layer and non-fragment orbit supporting layer and cable channel is filled seam body inserts.
The thickness of concrete reinforced structure layer is 80～100mm.
Concrete reinforced structure layer arranges transverse expansion joint every 5m, the wide 10～15mm of transverse expansion joint.
Being filled in the seam body inserts in transverse expansion joint and vertical structure seam, is the polyethylene rod of the polyethylene board of joint filling, backing and the polyurethane adhesive of sealing from bottom to top.
The non-fragment orbit high-speed railway subgrade face reinforcement waterproof construction that the utility model is released has that intensity is large, cracking resistance is high, water resistance is good, the advantage such as simple of constructing, play road bed waterproof effect and avoid producing the Defect of Foundation Bed of Express such as foundation of road bed distortion, be specially adapted to cold district road bed waterproof, be conducive to the safe operation of non-fragment orbit high-speed railway.
Accompanying drawing explanation
Fig. 1 is the formation schematic diagram of the non-fragment orbit high-speed railway subgrade face reinforcement waterproof construction that relates to of the utility model.
Description of symbols in figure:
1, fragment-free track slab 2, non-fragment orbit supporting layer
3, cable channel 4, layer of concrete
5, galvanized wire mesh 6, seam body inserts
7, top layer filler
The specific embodiment
Below in conjunction with accompanying drawing, the technical scheme of the utility model non-fragment orbit high-speed railway subgrade face reinforcement waterproof construction is elaborated.Fig. 1 has shown the basic comprising of non-fragment orbit high-speed railway subgrade face reinforcement waterproof construction, and as shown in Figure 1, the non-fragment orbit high-speed railway subgrade face reinforcement waterproof construction that the utility model relates to comprises concrete reinforced structure layer and seam body inserts 6.
Concrete reinforced structure is placed on the roadbed top layer end face between non-fragment orbit supporting layer 2 and cable channel 3, and concrete reinforced structure layer consists of the layer of concrete 4 that wraps up galvanized wire mesh 5.
The thickness of concrete reinforced structure layer is 80～100mm.
Concrete reinforced structure layer arranges transverse expansion joint every 5m, and the wide 10～15mm of transverse expansion joint fills seam body inserts 6 in transverse expansion joint.
Vertical structure seam is set between layer of concrete reinforced structure layer and non-fragment orbit supporting layer and cable channel, and vertical structure seam is filled seam body inserts 6.
Being filled in the seam body inserts 6 in transverse expansion joint and vertical structure seam, is the polyethylene rod of the polyethylene board of joint filling, backing and the polyurethane adhesive of sealing from bottom to top.
Claims (4)
1. a non-fragment orbit high-speed railway subgrade face reinforcement waterproof construction, it is characterized in that, described road bed reinforcement waterproof construction comprises concrete reinforced structure layer and seam body inserts, concrete reinforced structure is placed on the roadbed top layer end face between non-fragment orbit supporting layer and cable channel, concrete reinforced structure layer consists of the layer of concrete that wraps up galvanized wire mesh, in concrete reinforced structure layer, transverse expansion joint is set, in transverse expansion joint, fill seam body inserts, vertical structure seam between concrete reinforced structure layer and non-fragment orbit supporting layer and cable channel is filled seam body inserts.
2. non-fragment orbit high-speed railway subgrade face reinforcement waterproof construction according to claim 1, is characterized in that, the thickness of described concrete reinforced structure layer is 80～100mm.
3. non-fragment orbit high-speed railway subgrade face reinforcement waterproof construction according to claim 1, is characterized in that, described concrete reinforced structure layer arranges transverse expansion joint every 5m, the wide 10～15mm of transverse expansion joint.
4. non-fragment orbit high-speed railway subgrade face reinforcement waterproof construction according to claim 1, it is characterized in that, the described seam body inserts being filled in transverse expansion joint and vertical structure seam is the polyethylene rod of the polyethylene board of joint filling, backing and the polyurethane adhesive of sealing from bottom to top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320592913.8U CN203487418U (en) | 2013-09-24 | 2013-09-24 | Subgrade surface reinforcement waterproof structure of ballastless track high speed railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320592913.8U CN203487418U (en) | 2013-09-24 | 2013-09-24 | Subgrade surface reinforcement waterproof structure of ballastless track high speed railway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203487418U true CN203487418U (en) | 2014-03-19 |
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ID=50258261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320592913.8U Expired - Lifetime CN203487418U (en) | 2013-09-24 | 2013-09-24 | Subgrade surface reinforcement waterproof structure of ballastless track high speed railway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203487418U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105297569A (en) * | 2015-11-03 | 2016-02-03 | 中铁九局集团有限公司 | Roadbed concrete bed structure and construction method |
| CN107313306A (en) * | 2017-08-12 | 2017-11-03 | 中国铁路设计集团有限公司 | Sealing structure for cold district ballastless track of high-speed railway road bed waterproof layer expansion joint |
| CN108447377A (en) * | 2018-05-21 | 2018-08-24 | 西南交通大学 | The simulator and analogy method of non-fragment orbit surface layer of subgrade bed frost boiling disease |
| CN114922008A (en) * | 2022-05-23 | 2022-08-19 | 中铁十五局集团有限公司 | Ballastless track high-speed railway roadbed reinforcement waterproof structure and construction method thereof |
-
2013
- 2013-09-24 CN CN201320592913.8U patent/CN203487418U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105297569A (en) * | 2015-11-03 | 2016-02-03 | 中铁九局集团有限公司 | Roadbed concrete bed structure and construction method |
| CN107313306A (en) * | 2017-08-12 | 2017-11-03 | 中国铁路设计集团有限公司 | Sealing structure for cold district ballastless track of high-speed railway road bed waterproof layer expansion joint |
| CN107313306B (en) * | 2017-08-12 | 2023-02-28 | 中国铁路设计集团有限公司 | Sealing structure for expansion joint of road base surface waterproof layer of ballastless track of high-speed railway in cold area |
| CN108447377A (en) * | 2018-05-21 | 2018-08-24 | 西南交通大学 | The simulator and analogy method of non-fragment orbit surface layer of subgrade bed frost boiling disease |
| CN114922008A (en) * | 2022-05-23 | 2022-08-19 | 中铁十五局集团有限公司 | Ballastless track high-speed railway roadbed reinforcement waterproof structure and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300142 Hebei District, Zhongshan Road, No. 10, Patentee after: CHINA RAILWAY DESIGN Corp. Address before: 300142 Hebei District, Zhongshan Road, No. 10, Patentee before: THE THIRD RAILWAY SURVEY AND DESIGN INSTITUTE Group Corp. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140319 |