CN110258193A - A kind of durable flexible structure and construction method for punishing high-speed rail roadbed water-protected enclosure layer - Google Patents
A kind of durable flexible structure and construction method for punishing high-speed rail roadbed water-protected enclosure layer Download PDFInfo
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- CN110258193A CN110258193A CN201910599651.XA CN201910599651A CN110258193A CN 110258193 A CN110258193 A CN 110258193A CN 201910599651 A CN201910599651 A CN 201910599651A CN 110258193 A CN110258193 A CN 110258193A
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- speed rail
- protected enclosure
- punishing
- flexible structure
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- 238000010276 construction Methods 0.000 title claims abstract description 22
- 239000010410 layer Substances 0.000 claims abstract description 115
- 239000004567 concrete Substances 0.000 claims abstract description 30
- 238000002955 isolation Methods 0.000 claims abstract description 24
- 229920001971 elastomer Polymers 0.000 claims abstract description 21
- 239000011275 tar sand Substances 0.000 claims abstract description 19
- 238000004140 cleaning Methods 0.000 claims abstract description 9
- 239000011241 protective layer Substances 0.000 claims abstract description 9
- 239000007921 spray Substances 0.000 claims abstract description 3
- 239000010426 asphalt Substances 0.000 claims description 37
- 230000001804 emulsifying effect Effects 0.000 claims description 18
- 239000004576 sand Substances 0.000 claims description 11
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 239000011707 mineral Substances 0.000 claims description 10
- 235000019738 Limestone Nutrition 0.000 claims description 9
- 239000006028 limestone Substances 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 8
- 239000010440 gypsum Substances 0.000 claims description 7
- 229910052602 gypsum Inorganic materials 0.000 claims description 7
- 230000001568 sexual effect Effects 0.000 claims 1
- 239000000835 fiber Substances 0.000 abstract description 19
- 238000010410 dusting Methods 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 11
- 239000000243 solution Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 6
- 239000010920 waste tyre Substances 0.000 description 6
- 238000011084 recovery Methods 0.000 description 5
- 201000010099 disease Diseases 0.000 description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 4
- 238000004945 emulsification Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000006071 cream Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 238000009490 roller compaction Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 239000006210 lotion Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000011433 polymer cement mortar Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007761 roller coating Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
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)
- Road Paving Structures (AREA)
- Railway Tracks (AREA)
Abstract
The present invention relates to a kind of durable flexible structure for punishing high-speed rail roadbed water-protected enclosure layer, including protective layer, the protective layer includes being successively arranged flexible punishment layer, elastomeric isolation layer and tar sand waterproof layer from inside to outside；Construction method includes: former concrete surface cleaning, sprays flexible punishment layer, dispenses rubber scraps and forms elastomeric isolation layer, the jolt ramming tar sand that paves forms weatherability waterproof layer；High-speed rail roadbed water-protected enclosure layer concrete dusting punishment protective layer of the invention is punished especially suitable for the fiber concrete dusting of extremely frigid zones, has many advantages, such as good climate adaptability and excellent durability, and construction technology is simple and quick, good economy performance.
Description
Technical field
The present invention relates to railway bed water-protected enclosure layer concrete dusting Treating technology field, especially a kind of punishment Han Qu
The durable flexible structure and construction method of high-speed rail roadbed water-protected enclosure layer.
Background technique
Water-protected enclosure layer is to guarantee that high-speed rail roadbed is steady for a long time as the important barrier for preventing rainwater and surface water from entering roadbed
Qualitative key components.Existing high-speed railway subgrade water-protected enclosure layer mostly uses the cement concrete scheme of adding of fiber.
Due to uncontrollable factor during the design feature and site operation of high-speed iron roadbed water-protected enclosure layer, area's high-speed railway subgrade of trembling with fear
Length of the fiber concrete water-protected enclosure layer in severe factors such as natural conditions and vibration such as extremely frigid zones multigelation, high speed wind erosions
Under phase comprehensive function, occur the diseases such as serious cracking, peeling and dusting in Practical Project successively, this not only affects waterproofing protection
Function, the long-time stability and route ride comfort to roadbed are unfavorable, and peel off and fall grain with concrete caused by dusting comprehensive function
Phenomenon also brings potential security risk to the train of high-speed cruising.
For the disease of the high-speed rail water-protected enclosure floor of cold area's high-speed railway fiber concrete, take in engineering with cement base
Rigid recovery scenario based on material or polymer cement mortar and the plural layers based on the high molecular materials such as polyurethane apply
Layer class recovery scenario.The basic ideas of above scheme are mainly designed with " reinforcement "+" waterproof " purpose, their project cost
It is higher, and technique is more complex, it is difficult to adapt to the requirement of high-speed railway skylight point construction.From the engineering practice of existing line
It sees, no matter its practical repairing effect or durability fail to attain the results expected.It is exposed from these recovery projects
Problem is seen, be difficult to ensure using the crack resistance of the rigid material recovery scenario itself of thin layer with frost resistance, and is cohered with substrate
It is difficult to ensure, easily forms hollowing and is quickly invalidated；And it is good because having between polyurethanes Coating Materials and concrete
Bond strength, but the broken ability of its anti-Le is poor, the shrinking percentage of material at low temperature, it can be by bottom concrete drawing crack in contraction process
Fragment is formed, the destruction of basilar fibers concrete is exacerbated, and the fragment peeled off easily brings bigger security risk.Therefore, it seeks
A kind of more simple process is sought, is easy to construct and the roadbed water-protected enclosure layer recovery scenario of durable economy is that China has opened operation
Cold area's high-speed railway Important Project demand.
Summary of the invention
The present invention provides a kind of durable flexible structures and construction method for punishing high-speed rail roadbed water-protected enclosure layer, can be effective
Solve existing cold area's high-speed railway subgrade water-protected enclosure floor fiber concrete cracking, pulverizing problem, and protective layer construction work
Skill is simple and construction is time-consuming short, realizes the quick reparation to fiber concrete water-protected enclosure layer, farthest reduces maintenance and supports
Nurse makees the influence to high-speed railway operation, it can also be used to the reparation and punishment of the high-speed rail roadbed water-protected enclosure layer in other areas.
The present invention uses the skill of " base's densification and interface water-proof binding "+" elastomeric isolation "+" Weatherproof flexible waterproof layer "
Art thinking is coated in the fiber concrete of reparation first using the big feature of the voidage of water-protected enclosure layer dusting concrete
Gypseous slow breaking emulsified asphalt lotion；Then it dispenses rubber scraps and forms elastomeric isolation layer；Last Manual jolt ramming changes
Property tar sand formed Weatherproof flexible waterproof layer.
To achieve the above object, The technical solution adopted by the invention is as follows:
A kind of durable flexible structure and construction method for punishing high-speed rail roadbed water-protected enclosure layer, including protective layer, the protective layer
Including being successively arranged flexible punishment layer, elastomeric isolation layer and tar sand waterproof layer from inside to outside.
As an improvement of the present invention, the spread quantity of the flexible punishment layer is 1.2-2.8kg/m2；It is described elasticity every
The spread quantity of absciss layer is 2-5kg/ m2；The tar sand waterproof layer with a thickness of 2-3cm.
As an improvement of the present invention, system is blended with saturation gypsum solution for A grades of asphalt in the flexible punishment layer
The emulsified asphalt obtained doubles as water-proof tack coat.
As an improvement of the present invention, the solid content of the emulsified asphalt is 50-65%.
As an improvement of the present invention, the A grade asphalt that the A grades of asphalt is No. 90-130, and 10 DEG C
Ductility is not less than 45 DEG C not less than 45cm, softening point.
As an improvement of the present invention, the elastomeric isolation layer is that the 3-5mm rubber that waste tire rubber is rolled into is broken
Bits.
As an improvement of the present invention, the tar sand waterproof layer is made of lime stone mineral aggregate and modified emulsifying asphalt,
The mass ratio of the lime stone mineral aggregate and modified emulsifying asphalt is 100:7-12.
As an improvement of the present invention, the size of the lime stone mineral aggregate is to appoint in 0-3mm, 3-5mm and 5-10mm
The one or more of combination of meaning, meets Department of Transportation's professional standard specification.
As an improvement of the present invention, the modified emulsifying asphalt is modified pitch emulsification, be can be prepared by.
As an improvement of the present invention, the solid content of the modified emulsifying asphalt is 50-65%.
As an improvement of the present invention, a kind of construction party of durable flexible structure that punishing high-speed rail roadbed water-protected enclosure layer
Method, construction procedure are as follows: former concrete surface cleaning sprays flexible punishment layer, dispenses rubber scraps and forms elastomeric isolation layer, booth
It spreads jolt ramming tar sand and forms tar sand waterproof layer.
As an improvement of the present invention, the present invention provides above-mentioned water-protected enclosure layer concrete dusting punishment protective layers
Construction method, detailed step is as follows:
(1) former concrete surface cleaning.The fiber concrete for removing obvious dusting and loosening, with hair dryer the impurity of cleaning
Purging is clean, with emulsified asphalt to the crack of fiber concrete and its with carry out Seal treatment at track plates base seam, then
Leveling is carried out to basal plane with the modified pitch sand mixed in advance.
(2) it is coated with gypseous slow breaking emulsified asphalt lotion.Gypsum will be contained using method that is mechanical or manually spraying
Emulsified asphalt mixed solution be equably coated on the fiber concrete surface after tying, dosage 1.2-2.8kg/m2, to cream
Change and forms flexible punishment layer after pitch is demulsified completely.
(3) it dispenses rubber scraps and forms elastomeric isolation layer.Flexible punishment layer surface after complete demulsification dispenses partial size and exists
The rubber scraps that the waste tire rubber of 2-5mm is rolled into, dosage 2-5kg/m2So as to form elastomeric isolation layer, to realize
The water-protected enclosure layer of original damage and being isolated for upper layer reduce the influence of original water-protected enclosure layer and substrate vibration.
(4) modified emulsifying asphalt sand carries out basal plane repairing.The modified pitch sand mixed in advance is uniformly spread by gridding method
It onto construction surface, is raked with rake, above cover water imbibition geotextiles and then uses plate compactor or roller compaction, this layer of thickness control is in 2-
3cm。
Due to using the above technology, the present invention compared with the prior art, is had the advantage that as follows:
1. the structure of quick punishment high-speed rail roadbed fiber concrete water-protected enclosure layer disease of the invention have good weatherability,
The advantages that water resistant damages, is low temperature resistant, can bear high-frequency vibration load, and durability is good, and construction technology is simple and construction is time-consuming short, it can
Achieve the purpose that quickly to repair.
2. the present invention repairs waterproof protective layer basal plane using 2-3cm modified pitch sand, it is levelling to avoid conventional slurry filling
The separation that the repair layer structure of layer+thin layer waterproof layer occurs under the effect of dynamic load high-frequency vibration and adverse circumstances collective effect is peeled off
Problem.
3. elastomeric isolation layer is arranged, it can be achieved that original in the present invention between original fiber concrete and new modified pitch sand
There is the isolation of water-protected enclosure layer disease, maximumlly reduce the influence of original confining bed and substrate vibration to modified pitch sand,
To be beneficial to prolong its service life.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of durable flexible structure for punishing high-speed rail roadbed water-protected enclosure layer；
In figure: 1, flexible punishment layer, 2, elastomeric isolation layer, 3, weather-proof tar sand waterproof layer.
Specific embodiment
With reference to embodiment, the present invention is furture elucidated.
Embodiment 1:
A kind of durable flexible structure for punishing high-speed rail roadbed water-protected enclosure layer, the structure are successively arranged flexible punishment from inside to outside
Layer 1, elastomeric isolation layer 2 and weather-proof tar sand waterproof layer 3.
Wherein, flexible punishment floor 1 is solid as made from 10 DEG C of ductility 52cm, No. 90 A grades of asphalt that softening point is 48 DEG C
The emulsified asphalt that content is 65% is blended with saturation gypsum solution, mechanical spread, spread quantity 1.2kg/m2。
The 3-4mm rubber scraps that elastomeric isolation layer 2 is rolled by the waste tire rubber of truck is manually dispensed in flexibility
Punish 1 surface of layer, spreading amount 3kg/m2。
Weather-proof tar sand waterproof layer 3, including lime stone mineral aggregate, the modified emulsifying asphalt matched according to mass ratio for 100:7, stone
Material is limestone, and gradation is listed in table 1.Modified emulsifying asphalt be performance be PG64-34 the emulsification of SBR modified pitch (solid content is
65%) it obtains, dosage 8.0%.
1 mineral aggregate gradation of table
| Screen size (mm) | 9.5 | 4.75 | 2.36 | 1.18 | 0.6 | 0.3 | 0.15 | 0.075 |
| Pass through percentage | 100 | 84.2 | 67.6 | 54.5 | 36.5 | 24.5 | 12.4 | 6.0 |
A kind of construction method of durable flexible structure that punishing high-speed rail roadbed water-protected enclosure layer sequentially includes the following steps:
(1) fiber concrete of obvious dusting and loosening is removed, it is with hair dryer that the impurities purging of cleaning is clean, it is dripped with emulsification
Blueness to the crack of fiber concrete and its with Seal treatment is carried out at track plates base seam, then with the modification mixed in advance
Tar sand carries out leveling to basal plane；
(2) the flexible punishment layer 1 of coating.Saturation gypsum solution is mixed with emulsified asphalt in the way of machinery sprinkling or artificial smearing
Close solution equably spraying fiber concrete layer surface, dosage 1.2kg/m after cleaning is levelling2, pitch to be emulsified is completely broken
Flexible punishment layer 1 is formed after cream, whether uniformly to go through flexible punishment layer 1, and secondary treatment is carried out to uneven place.
(3) it dispenses rubber scraps and forms elastomeric isolation layer 2.It is manually spread on flexible punishment 1 surface of layer after complete demulsification
The rubber scraps that cloth partial size 3-4mm waste tire rubber is rolled into, dosage 3kg/m2So as to form elastomeric isolation layer 2.
(4) it paves and is compacted modified emulsifying asphalt sand.The modified emulsifying asphalt sand mixed in advance is uniformly spread to construction surface
On, it is raked with rake, middle section roller compaction, both sides are tamped respectively, this layer of thickness control is in 2cm.
Embodiment 2:
A kind of durable flexible structure for punishing high-speed rail roadbed water-protected enclosure layer, the structure are successively arranged flexible punishment from inside to outside
Layer 1, elastomeric isolation layer 2 and weather-proof tar sand waterproof layer 3.
Wherein, the flexible punishment floor 1 is by 10 DEG C of ductilities not less than 60cm, No. 130 asphalt that softening point is 42 DEG C
The emulsified asphalt and the saturation artificial roller coating of gypsum solution that solid content obtained is 50%, spread quantity 2.8kg/m2。
4-5mm rubber scraps that the elastomeric isolation layer 2 is rolled by the waste tire rubber of truck manually dispensed in
Flexibility punishment 1 surface of layer, spreading amount 4kg/m2。
The weather-proof tar sand waterproof layer 3, limestone mineral aggregate, modified emulsifying including matching according to mass ratio 10:1 drip
Blueness, mineral aggregate gradation are listed in table 2.Modified emulsifying asphalt is the modified emulsifying asphalt (solid content 50%) of PG70-28, and dosage is
10%。
2 building stones gradation of table
| Screen size (mm) | 9.5 | 4.75 | 2.36 | 1.18 | 0.6 | 0.3 | 0.15 | 0.075 |
| Pass through percentage | 100 | 90.2 | 65.5 | 52.5 | 33.5 | 22.5 | 16.5 | 10.6 |
A kind of construction method of durable flexible structure that punishing high-speed rail roadbed water-protected enclosure layer sequentially includes the following steps:
(1) fiber concrete of obvious dusting and loosening is removed, it is with hair dryer that the impurities purging of cleaning is clean, it is dripped with emulsification
Blueness to the crack of fiber concrete and its with Seal treatment is carried out at track plates base seam, then with the modification mixed in advance
Tar sand carries out leveling to basal plane；
(2) the flexible punishment layer 1 of coating.Saturation gypsum solution is mixed with emulsified asphalt in the way of machinery sprinkling or artificial smearing
Close solution equably spraying fiber concrete layer surface, dosage 2.8kg/m after cleaning is levelling2, pitch to be emulsified is completely broken
Flexible punishment layer 1 is formed after cream, whether uniformly to go through flexible punishment layer 1, and secondary treatment is carried out to uneven place.
(3) it dispenses rubber scraps and forms elastomeric isolation layer 2.It is manually spread on flexible punishment 1 surface of layer after complete demulsification
The rubber scraps that the waste tire rubber of cloth partial size 4-5mm is rolled into, dosage 4kg/m2So as to form elastomeric isolation layer 2.
(4) it paves and is compacted modified emulsifying asphalt sand.The modified emulsifying asphalt sand mixed in advance is uniformly spread to construction surface
On, it is raked with rake, middle section roller compaction, both sides are tamped respectively, this layer of thickness control is in 3cm.
Above-described embodiment is only the preferred technical solution of the present invention, and is not construed as limitation of the invention, the present invention
Protection scope should with claim record technical solution, including claim record technical solution in technical characteristic etc.
It is protection scope with alternative, i.e., equivalent replacement within this range is improved, also within protection scope of the present invention.
Claims (10)
1. a kind of durable flexible structure for punishing high-speed rail roadbed water-protected enclosure layer, it is characterised in that: including protective layer, the protection
Layer includes being successively arranged flexible punishment layer, elastomeric isolation layer and tar sand waterproof layer from inside to outside.
2. a kind of durable flexible structure for punishing high-speed rail roadbed water-protected enclosure layer according to claim 1, it is characterised in that:
The spread quantity of the flexible punishment layer is 1.2-2.8kg/m2；The spread quantity of the elastomeric isolation layer is 2-5kg/ m2；The drip
Green sand waterproof layer with a thickness of 2-3cm.
3. a kind of durable flexible structure for punishing high-speed rail roadbed water-protected enclosure layer according to claim 1, it is characterised in that:
The flexible punishment layer is emulsified asphalt made from A grades of asphalt are blended with saturation gypsum solution.
4. a kind of durable flexible structure for punishing high-speed rail roadbed water-protected enclosure layer according to claim 2, it is characterised in that:
The solid content of the emulsified asphalt is 50-65%；The A grade asphalt that the A grades of asphalt is No. 90-130.
5. a kind of durable flexible structure for punishing high-speed rail roadbed water-protected enclosure layer according to claim 1, it is characterised in that:
The elastomeric isolation layer is the 3-5mm rubber scraps that rubber is rolled into.
6. a kind of durable flexible structure for punishing high-speed rail roadbed water-protected enclosure layer according to claim 1, it is characterised in that:
The tar sand waterproof layer is made of lime stone mineral aggregate and modified emulsifying asphalt, the lime stone mineral aggregate and modified emulsifying asphalt
Mass ratio is 100:7-12.
7. a kind of durable flexible structure for punishing high-speed rail roadbed water-protected enclosure layer according to claim 6, it is characterised in that:
The size of the lime stone mineral aggregate is any one in 0-3mm, 3-5mm and 5-10mm or above combination.
8. a kind of durable flexible structure for punishing high-speed rail roadbed water-protected enclosure layer according to claim 6, it is characterised in that:
The modified emulsifying asphalt is that after modified pitch is emulsified, can be prepared by.
9. a kind of durable flexible structure for punishing high-speed rail roadbed water-protected enclosure layer according to claim 8, it is characterised in that:
The solid content of the modified emulsifying asphalt is 50-65%.
10. a kind of construction party for the durable flexible structure of punishment high-speed rail roadbed water-protected enclosure layer described in claim 1-9
Method, which is characterized in that construction procedure is as follows: former concrete surface cleaning sprays flexible punishment layer, dispenses rubber scraps and form bullet
Sexual isolation layer, the jolt ramming tar sand that paves form tar sand waterproof layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910599651.XA CN110258193B (en) | 2019-07-04 | 2019-07-04 | Durable and flexible structure for treating waterproof sealing layer of high-speed railway foundation and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910599651.XA CN110258193B (en) | 2019-07-04 | 2019-07-04 | Durable and flexible structure for treating waterproof sealing layer of high-speed railway foundation and construction method |
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| CN110258193A true CN110258193A (en) | 2019-09-20 |
| CN110258193B CN110258193B (en) | 2024-04-16 |
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|---|---|---|---|---|
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| CN104278598A (en) * | 2014-09-22 | 2015-01-14 | 东南大学 | Self-compacting bituminous concrete waterproof seal and construction method thereof |
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| CN211645779U (en) * | 2019-07-04 | 2020-10-09 | 东南大学 | Durable flexible structure for treating waterproof sealing layer of high-speed railway foundation |
-
2019
- 2019-07-04 CN CN201910599651.XA patent/CN110258193B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101187193A (en) * | 2007-12-06 | 2008-05-28 | 武汉理工大学 | Half-flexible water drainage skid-free noise-reducing road surface pavement structure |
| CN201459524U (en) * | 2009-06-22 | 2010-05-12 | 中铁二院工程集团有限责任公司 | Structure of vibration absorbing type ballastless track subgrade bed |
| CN104278598A (en) * | 2014-09-22 | 2015-01-14 | 东南大学 | Self-compacting bituminous concrete waterproof seal and construction method thereof |
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| 朱久红;: "徐州站宽枕轨道基床病害的分析与整治", 路基工程, no. 03 * |
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| CN110258193B (en) | 2024-04-16 |
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