CN108193568A - Track roadbed in high-humidity area - Google Patents
Track roadbed in high-humidity area Download PDFInfo
- Publication number
- CN108193568A CN108193568A CN201810010831.5A CN201810010831A CN108193568A CN 108193568 A CN108193568 A CN 108193568A CN 201810010831 A CN201810010831 A CN 201810010831A CN 108193568 A CN108193568 A CN 108193568A
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- layer
- channel
- underlayment
- roadbed
- drainage
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000000926 separation method Methods 0.000 claims description 12
- 239000004568 cement Substances 0.000 claims description 9
- 239000004746 geotextile Substances 0.000 claims description 8
- 239000002689 soil Substances 0.000 claims description 8
- 230000000979 retarding effect Effects 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 6
- 239000004575 stone Substances 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
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- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
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- 239000004571 lime Substances 0.000 claims description 3
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- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract description 64
- 238000013461 design Methods 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000002344 surface layer Substances 0.000 abstract 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
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- 238000005260 corrosion Methods 0.000 description 2
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- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2/00—General structure of permanent way
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Railway Tracks (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a track subgrade in a high-humidity area, which comprises a subgrade, wherein the subgrade consists of a structural layer and a drainage system, the structural layer is formed by sequentially compounding a surface layer, a cushion layer, a base layer, the cushion layer and a bottom base layer, steel sleepers are fixed on the surface layer, isolation layers are arranged on two sides of the structural layer, the slope design of the structural layer is favorable for the drainage of the subgrade, the drainage system comprises a flow guide channel, a flow dredging channel and a drainage channel, and the flow guide channel, the flow dredging channel and the drainage channel are sequentially connected. By arranging the drainage system, the invention prevents rainwater from being overstocked, increases the way of a drainage channel, is beneficial to diversion, avoids the influence on the normal use of the roadbed caused by rainwater seeping into the roadbed, simultaneously optimizes the design of a roadbed structure layer, enhances the stability, blocks external interference, prolongs the service life of the roadbed, and has simple structure and reasonable design.
Description
Technical field
The present invention relates to track bed technical field, specially a kind of track bed in high humility area.
Background technology
Roadbed is the structure of direct supporting track by filling or excavating and formed, and the effect of railway bed is in road bed
Upper to be directly laid with track structure, therefore, roadbed is the basis of track, and embankment load had both born the weight of track structure, i.e., quiet lotus
It carries, and bears to propagate and next dynamic load by track during train driving.The line construction that roadbed is cooperatively formed with track
A kind of structure type of relative loose connection, the ability for resisting dynamic load is weak, therefore, roadbed should have enough robustnesses,
Stability and durability, especially in the high area of humidity, the service life problem of roadbed should more draw attention.
Existing patent CN107476157A provides a kind of road structure and highway subgrade structure, is related to highway subgrade technology
Field.The road structure includes roadbed main body and three-dimensional drainage system；The solid drainage system, including multiple-layer horizontal draining
Layer, multilayer and horizontal row water layer vertical drainage channel arranged in a crossed manner and slope drainage layer；The roadbed main body, by the level
Drainage blanket and the vertical drainage channel segmentation are located at the two of the roadbed main body into polylith Roadbed Soil, the slope drainage layer
Side, and be connected with the horizontal row water layer；The horizontal row water layer and the slope drainage layer are away from the Roadbed Soil
Side is provided with corrosion-resistant coating.Road structure and highway subgrade structure provided by the invention can improve anti-corrosion effect.But the skill
Drain function of the art in moist area of heavy rainfull is insufficient, and using groined type drainage pattern, drainage channel is more single, and shunting effect is not
It is good, and the structure design of roadbed still needs to strengthen.
Invention content
In order to overcome in existing background technology the shortcoming that roadbed drainage efficiency is low, stability is poor, the present invention provides
Following technical solution：
A kind of track bed in high humility area, including roadbed, the roadbed is made of structure sheaf and drainage system, in tide
Wet area of heavy rainfull, the ventilating drainage function of roadbed are particularly important；
The structure sheaf includes face layer, base, underlayment and bed course, and steel sleeper, the structure sheaf are fixed on the face layer
It is sequentially compounding by face layer, bed course, base, bed course and underlayment, the structure sheaf both sides are both provided with separation layer, Yi Jijie
The slope design of structure layer is conducive to subgrade drainage, and face layer directly bears vehicular load, and face layer transfers the load to base, base and
Face layer delivers load to underlayment together, and main load-bearing effect plays in base, and underlayment plays secondary load-bearing effect, and bed course is arranged on
Between face layer and base between base and underlayment, draining, cushioning effect are played；
The drainage system includes flow-guiding channel, dredges circulation road and current drainage channel, and the flow-guiding channel dredges circulation road and row
Circulation road sequentially connects, and the flow-guiding channel is the up-side down triangle slot being opened on the layer of face, prevents rainwater from overstocking in the rainy time,
The thin circulation road is the Vertical Channel and horizontal channel arranged in a crossed manner in base, and the horizontal channel is connected with separation layer
Logical, convenient from horizontal channel draining, separation layer has obstructed damage of the external substance to roadbed, the horizontal channel exit setting
There is protective film, the protective film is non-woven geotextile, and the current drainage channel is the triangular duct being arranged in underlayment, is convenient for
Water preferably shunts, and increases drainage area, improves drainage efficiency.
Preferably, the face layer includes waterproof layer and frost retarding layer, and the waterproof layer is bituminous macadam, is prevented under ponding
It oozes, influences base, the frost retarding layer is the fine sand layer with cement stabilization, and for fine sand when freezing, icing phenomena is few, can reduce roadbed
Frost heaving amount, be conducive to protect roadbed；
The base is lime stabilized soil；
The underlayment includes upper underlayment and lower underlayment, and the upper underlayment is flexible graded broken stone and grading gravel
Stone, the lower underlayment are semirigid cement stabilized macadam and cement stabilizing fine grained soil, using the base to couple hardness with softness, are prevented
Reflection crack；
The bed course is sequentially compounding by upper bearing bed, isolation filter layer and lower bearing bed, and the upper bearing bed is under
Bearing bed is acupuncture cotton material, and the isolation filter layer is combined by PTFE film and cloth, has water-proof function；
The separation layer is the glass-fiber-fabric for being attached with lime mortar, seals waterproof.
Preferably, filling rubble, rubble outsourcing inside flow-guiding channel, thin circulation road and current drainage channel in the drainage system
Loaded filter is covered with, broken stone pile is provided with outside water geotextiles, to reinforce, the loaded filter is water geotextiles, prevents pollution roadbed.
Compared with prior art, the beneficial effects of the invention are as follows：
By setting the drainage system being made of flow-guiding channel, thin circulation road and current drainage channel, prevent rainwater from overstocking, increase
Drainage channel approach is conducive to shunt, and avoids optimizing simultaneously so as to influence the normal use of roadbed because of rainwater infiltration to roadbed
Road structure layer designs, and enhances stability, obstructs external interference, extends roadbed service life, simple in structure, and design is closed
Reason.
Description of the drawings
Fig. 1 is a kind of structure diagram of the track bed in high humility area of the present invention；
Fig. 2 is the structure diagram of bed course；
Reference numeral：1- roadbeds, 2- faces layer, 3- bases, 4- underlayments, 5- bed courses, 6- steel sleepers, 7- separation layers, 8- water conservancy diversion
Channel, 9- dredge circulation road, 10- current drainage channels, 201- waterproof layers, 202- frost retarding layers, the upper underlayments of 401-, underlayment under 402-,
The upper bearing beds of 501-, 502- isolation filter layers, bearing bed under 503-, 901- Vertical Channels, 902- horizontal channels, 9021- protections
Film.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig.1-2
A kind of track bed in high humility area as shown in Figs. 1-2, including roadbed 1, roadbed 1 is by structure sheaf and draining system
System composition, in moist area of heavy rainfull, the ventilating drainage function of roadbed 1 is particularly important；
Structure sheaf includes face layer 2, base 3, underlayment 4 and bed course 5, steel sleeper 6 is fixed on face layer 2, structure sheaf is by face layer
2nd, bed course 5, base 3, bed course 5 and underlayment 4 are sequentially compounding, and structure sheaf both sides are both provided with separation layer 7 and structure sheaf
Slope design be conducive to 1 draining of roadbed, face layer 2 directly bears vehicular load, and face layer 2 transfers the load to base 3, base 3
Underlayment 4 is delivered load to together with face layer 2, and main load-bearing effect plays in base 3, and underlayment 4 plays secondary load-bearing effect, bed course
5 are arranged between face layer 2 and base 3 between base 3 and underlayment 4, play draining, cushioning effect；
Drainage system includes flow-guiding channel 8, dredges circulation road 9 and current drainage channel 10, and flow-guiding channel 8 dredges circulation road 9 and drainage
Channel 10 sequentially connects, and flow-guiding channel 8 is the up-side down triangle slot being opened on face layer 2, prevents rainwater from overstocking in the rainy time, is dredged
Circulation road 9 is the Vertical Channel 901 and horizontal channel 902 arranged in a crossed manner in base 3, and horizontal channel 902 is connected with separation layer 7
Logical, convenient from 902 draining of horizontal channel, separation layer 7 has obstructed damage of the external substance to roadbed 1,902 exit of horizontal channel
Protective film 9021 is provided with, protective film 9021 is non-woven geotextile, and current drainage channel 10 is that the triangle being arranged in underlayment 4 leads to
Road preferably shunts convenient for water, increases drainage area, improves drainage efficiency.
As shown in Figure 1, face layer 2 includes waterproof layer 201 and frost retarding layer 202, waterproof layer 201 is bituminous macadam, prevents from accumulating
It oozes under water, influences base, frost retarding layer 202 is the fine sand layer with cement stabilization, and for fine sand when freezing, icing phenomena is few, can reduce
The frost heaving amount of roadbed is conducive to protect roadbed；
Base 3 is lime stabilized soil；
Underlayment 4 includes upper underlayment 401 and lower underlayment 402, and upper underlayment 401 is flexible graded broken stone and grading
Gravel, lower underlayment 402 are semirigid cement stabilized macadam and cement stabilizing fine grained soil, using the base to couple hardness with softness, are prevented
Only reflection crack；
Bed course 5 is sequentially compounding by upper bearing bed 501, isolation filter layer 502 and lower bearing bed 503, upper bearing bed 501
It is acupuncture cotton material with lower bearing bed 503, isolation filter layer 502 is combined by PTFE film and cloth, has water-proof function；
Separation layer 7 is the glass-fiber-fabric for being attached with lime mortar, seals waterproof.
As shown in Figure 1,10 inside filling rubble of flow-guiding channel 8, thin circulation road 9 and current drainage channel, rubble in drainage system
Loaded filter is coated with, broken stone pile is provided with outside water geotextiles, to reinforce, loaded filter is water geotextiles, prevents pollution roadbed
1。
Finally it should be noted that：It these are only the preferred embodiment of the present invention, be not intended to restrict the invention, although
The present invention is described in detail with reference to the foregoing embodiments, it for those skilled in the art, still can be right
Technical solution recorded in foregoing embodiments modify or to which part technical characteristic carry out equivalent replacement, it is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in the protection of the present invention
Within the scope of.
Claims (3)
1. a kind of track bed in high humility area, including roadbed (1), which is characterized in that the roadbed (1) is by structure sheaf and row
Water system forms；
The structure sheaf includes face layer (2), base (3), underlayment (4) and bed course (5), and steel sleeper is fixed on the face layer (2)
(6), the structure sheaf is sequentially compounding by face layer (2), bed course (5), base (3), bed course (5) and underlayment (4), the knot
Structure layer both sides are both provided with separation layer (7)；
The drainage system includes flow-guiding channel (8), dredges circulation road (9) and current drainage channel (10), and the flow-guiding channel (8) is dredged
Circulation road (9) and current drainage channel (10) sequentially connect, and the flow-guiding channel (8) is the up-side down triangle slot being opened on face layer (2),
The thin circulation road (9) is the Vertical Channel (901) and horizontal channel (902) arranged in a crossed manner in base (3), described horizontal logical
Road (902) is connected with separation layer (7), and horizontal channel (902) exit is provided with protective film (9021), and the drainage is led to
Road (10) is the triangular duct being arranged in underlayment (4).
2. the track bed in a kind of high humility area according to claim 1, which is characterized in that the face layer (2) includes
Waterproof layer (201) and frost retarding layer (202), the waterproof layer (201) are bituminous macadam, and the frost retarding layer (202) is uses cement
The fine sand layer of reinforcing；
The base (3) is lime stabilized soil；
The underlayment (4) includes upper underlayment (401) and lower underlayment (402), and the upper underlayment (401) is flexible grade
With rubble and graded gravel, the lower underlayment (402) is semirigid cement stabilized macadam and cement stabilizing fine grained soil；
The bed course (5) is sequentially compounding by upper bearing bed (501), isolation filter layer (502) and lower bearing bed (503), institute
It is acupuncture cotton material to state bearing bed (501) and lower bearing bed (503), and the isolation filter layer (502) is by PTFE film and cloth
It is combined；
The separation layer (7) is the glass-fiber-fabric for being attached with lime mortar.
3. the track bed in a kind of high humility area according to claim 1, which is characterized in that led in the drainage system
Circulation road (8) dredges that circulation road (9) and current drainage channel (10) are internal to fill rubble, and rubble is coated with loaded filter, outside water geotextiles
Broken stone pile is provided with, the loaded filter is water geotextiles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810010831.5A CN108193568A (en) | 2018-01-05 | 2018-01-05 | Track roadbed in high-humidity area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810010831.5A CN108193568A (en) | 2018-01-05 | 2018-01-05 | Track roadbed in high-humidity area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108193568A true CN108193568A (en) | 2018-06-22 |
Family
ID=62588424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810010831.5A Pending CN108193568A (en) | 2018-01-05 | 2018-01-05 | Track roadbed in high-humidity area |
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| Country | Link |
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| CN (1) | CN108193568A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030178194A1 (en) * | 2002-03-20 | 2003-09-25 | Maxwell Andrews | Method of reducing ground disturbance during freeze-thaw cycles and a subsurface insulation material |
| CN102421965A (en) * | 2009-05-14 | 2012-04-18 | 吉奥法布里克斯有限公司 | Trackbed liner and related methods |
| CN203498721U (en) * | 2013-10-16 | 2014-03-26 | 江苏省镇江市路桥工程总公司 | Three-dimensional drainage roadbed structure preventing damage by water of road in cold region |
| CN205012178U (en) * | 2015-09-22 | 2016-02-03 | 温州绿水青市政园林工程有限公司 | Domatic protection roadbed structure |
| CN105603892A (en) * | 2016-03-04 | 2016-05-25 | 中南大学 | Water nail drainage system for railway roadbed slope and construction method of system |
| CN206736647U (en) * | 2017-05-29 | 2017-12-12 | 黄大明 | A kind of novel road structure |
-
2018
- 2018-01-05 CN CN201810010831.5A patent/CN108193568A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030178194A1 (en) * | 2002-03-20 | 2003-09-25 | Maxwell Andrews | Method of reducing ground disturbance during freeze-thaw cycles and a subsurface insulation material |
| CN102421965A (en) * | 2009-05-14 | 2012-04-18 | 吉奥法布里克斯有限公司 | Trackbed liner and related methods |
| CN203498721U (en) * | 2013-10-16 | 2014-03-26 | 江苏省镇江市路桥工程总公司 | Three-dimensional drainage roadbed structure preventing damage by water of road in cold region |
| CN205012178U (en) * | 2015-09-22 | 2016-02-03 | 温州绿水青市政园林工程有限公司 | Domatic protection roadbed structure |
| CN105603892A (en) * | 2016-03-04 | 2016-05-25 | 中南大学 | Water nail drainage system for railway roadbed slope and construction method of system |
| CN206736647U (en) * | 2017-05-29 | 2017-12-12 | 黄大明 | A kind of novel road structure |
Non-Patent Citations (2)
| Title |
|---|
| 京沪高速铁路股份有限公司: "《记录京沪——京沪高速铁路建设新闻报道集》", 31 December 2012, 中国铁道出版社 * |
| 王克平等: "《农村公路建设365个怎么办》", 30 June 2004, 山东人民出版社 * |
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Application publication date: 20180622 |