CN106555368B - Saline soil area high-speed railway embankment reinforcing construction - Google Patents
Saline soil area high-speed railway embankment reinforcing construction Download PDFInfo
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- CN106555368B CN106555368B CN201710054365.6A CN201710054365A CN106555368B CN 106555368 B CN106555368 B CN 106555368B CN 201710054365 A CN201710054365 A CN 201710054365A CN 106555368 B CN106555368 B CN 106555368B
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- 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
- E01B1/001—Track with ballast
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/06—Methods or arrangements for protecting foundations from destructive influences of moisture, frost or vibration
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Railway Tracks (AREA)
Abstract
Saline soil area high-speed railway embankment reinforcing construction, the molten sunken and salt effectively to solve the problems, such as brining ground foundation is swollen, and the foundation treatment engineering amount and construction cost of saline soil area high-speed iron roadbed is greatly reduced.Including：Surface layer of subgrade bed is set to road bed, using the graded broken stone filling technology without soluble salt；Structure sheaf on bottom layer of subgrade is set to surface layer of subgrade bed hereinafter, thickness 1.0m, the coarse-grained soil using solvable salt content less than 0.3% fill；Bottom layer of subgrade lower structure layer, is set to structure sheaf on bottom layer of subgrade hereinafter, thickness 1.3m, using under solvable salt content in 1.5% and coarse-grained soil of the fine particle content less than 5% fill；Roadbed ontology, using under solvable salt content in 1.5% and fine particle content filled less than 5% coarse-grained soil；Water proof berm structure is set to embankment both sides slope foot, using under solvable salt content in 1.5% and fine particle content filled less than 5% coarse-grained soil；Upper water barrier is set on surface layer of subgrade bed and bottom layer of subgrade between structure sheaf；Lower water barrier, is set in roadbed ontology, and both sides extend to water proof berm structure.
Description
Technical field
The present invention relates to high-speed railway, more particularly to a kind of saline soil area high-speed railway embankment reinforcing construction.
Background technology
With the development of domestic high speed railway construction and high-speed railway go-global strategy, the height of saline soil area is passed through
Fast railway is more and more, and at present be suitable for high-speed railway salinized soil criterion, as filler road standard and
Road structure form study it is less, if completely using filling the filler without soluble salt and take arranging for composite foundation stabilization
It applies, then construction cost is huge, and violates the design concept of economical environment-protective, therefore the subgrade strengthening structure for solving problems has very
Big demand, economic results in society are huge.
Invention content
Technical problem to be solved by the invention is to provide a kind of saline soil area high-speed railway embankment reinforcing constructions, to have
Effect solves the problems, such as that the molten sunken and salt of brining ground foundation is swollen, and the foundation treatment engineering of saline soil area high-speed iron roadbed is greatly reduced
Amount, the extensive construction cost for saving high-speed railway.
The technical solution adopted by the present invention to solve the technical problems is as follows：
The saline soil area high-speed railway embankment reinforcing construction of the present invention, it is characterized in that it includes：Surface layer of subgrade bed is set to
Road bed is symmetrical set, using the graded broken stone filling technology without soluble salt；Structure sheaf on bottom layer of subgrade, is set to bedding
Surface layer is hereinafter, thickness 1.0m, the coarse-grained soil using solvable salt content less than 0.3% fill；Bottom layer of subgrade lower structure layer, is set to
Structure sheaf on bottom layer of subgrade hereinafter, thickness 1.3m, using under solvable salt content in 1.5% and fine particle content be less than thick of 5%
Grain soil fills；Roadbed ontology, is filled below bottom layer of subgrade lower structure layer on brining ground foundation, using under solvable salt content in
1.5% and fine particle content filled less than 5% coarse-grained soil；Water proof berm structure is set to embankment both sides slope foot, using can
Under dissolved salt content in 1.5% and fine particle content filled less than 5% coarse-grained soil；Upper water barrier, be set to surface layer of subgrade bed with
On bottom layer of subgrade between structure sheaf；Lower water barrier, is set in roadbed ontology, and both sides extend to water proof berm structure.
The invention has the advantages that efficiently solving the problems, such as that the molten sunken and salt of brining ground foundation is swollen, avoid setting on a large scale
Composite foundation is set, filler of the saliferous coarse-grained soil as high-speed railway subgrade is taken full advantage of, saline soil area is greatly reduced
The foundation treatment engineering amount of high-speed iron roadbed saves construction investment on a large scale, and conducive to environmental protection；It is simple in structure clear, construction
Safety, project cost is cheap, has wide popularizing application prospect.
The present invention is especially suitable for the area without soluble salt qualification filler is lacked, Ballast track and nothing can be suitable for simultaneously
Tiny fragments of stone, coal, etc. track railway bed.
Description of the drawings
This specification includes following two width attached drawing：
Fig. 1 is the cross-section diagram of high-speed railway embankment reinforcing construction in saline soil area of the present invention；
Fig. 2 is that the part of upper water barrier and lower water barrier is put in high-speed railway embankment reinforcing construction in saline soil area of the present invention
Big schematic diagram.
Component and corresponding label are shown in figure：Surface layer of subgrade bed 1, structure sheaf 2 on bottom layer of subgrade, bed bottom lower structure layer 3,
Roadbed ontology 4, water proof berm structure 5, upper water barrier 6, lower water barrier 7, upper layer geotextiles 8, geomembrane 9, lower layer's geotextiles 10,
Brining ground foundation D.
Specific implementation mode
Present invention will be further explained below with reference to the attached drawings and examples.
Referring to Fig.1, saline soil area high-speed railway embankment reinforcing construction of the invention includes：
A. surface layer of subgrade bed 1 is set to road bed, is symmetrical set, using the graded broken stone filling technology without soluble salt；
B. structure sheaf 2 on bottom layer of subgrade is set to surface layer of subgrade bed 1 hereinafter, thickness 1.0m, is less than using solvable salt content
0.3% coarse-grained soil fills；
C. bottom layer of subgrade lower structure layer 3 is set to structure sheaf 2 on bottom layer of subgrade hereinafter, thickness 1.3m, using solvable salt content
Under in 1.5% and fine particle content filled less than 5% coarse-grained soil；
D. roadbed ontology 4 is filled on brining ground foundation D in 3 or less bottom layer of subgrade lower structure layer, using solvable salt content
Under in 1.5% and fine particle content filled less than 5% coarse-grained soil；
E. water proof berm structure 5 is set to embankment both sides slope foot, using under solvable salt content in 1.5% and fine grained contain
Coarse-grained soil of the amount less than 5% fills；
F. upper water barrier 6, is set on surface layer of subgrade bed 1 and bottom layer of subgrade between structure sheaf 2；
G. water barrier 7 is descended, is set in roadbed ontology 4, both sides extend to water proof berm structure 5.
Bottom layer of subgrade is divided into bedding bottom by the present invention for the molten influence sunken, salt is swollen to high-speed railway subgrade of salinized soil
Structure sheaf 1 and bottom layer of subgrade lower structure layer 2 on layer, and its thickness of clear stipulaties and solvable salt content.In embankment both sides, slope foot is set
Water proof berm structure 5 is set, reduces and oozes influence sunken, salt is swollen molten to brining ground foundation under surface water.In surface layer of subgrade bed 1 and bedding bottom
Upper water barrier 6 is set on layer between structure sheaf 2, and the water barrier 7 under the arrangement above of ground, upper water barrier 6 can reduce road simultaneously
It is oozed under the surface water of basal plane, the molten sunken and salt for reducing roadbed filling is swollen, and lower water barrier 7, which is reduced, to be oozed under surface water to ground, drop
The molten sunken and salt of low land base salinized soil is swollen, while preventing soluble salt in ground from rising migration stain roadbed filling with capillary water, can
The molten of salinized soil is effectively solved to fall into and the swollen influence to high ferro roadbed of salt.
Referring to Fig.1, the upper water barrier 6, lower water barrier 7 form 4% weathering from center to both sides.State water proof berm
5 height of structure is 1~2m, and width is 2~5m.
With reference to Fig. 2, the upper water barrier 6, lower water barrier 7 are answered by upper layer geotextiles 8, geomembrane 9 and lower layer's geotextiles 10
It closes and constitutes.
Some principles of the high-speed railway embankment reinforcing construction in saline soil area of the present invention described above that only explains through diagrams,
Be not intended to by the present invention be confined to shown in and the concrete structure and the scope of application in, therefore every be possible to be utilized
Corresponding modification and equivalent belong to the apllied the scope of the claims of the present invention.
Claims (4)
1. saline soil area high-speed railway embankment reinforcing construction, it is characterized in that it includes：
A. surface layer of subgrade bed (1), is set to road bed, is symmetrical set, using the graded broken stone filling technology without soluble salt；
B. structure sheaf (2) on bottom layer of subgrade are set to surface layer of subgrade bed (1) hereinafter, thickness 1.0m, is less than using solvable salt content
0.3% coarse-grained soil fills；
C. bottom layer of subgrade lower structure layer (3) are set to structure sheaf on bottom layer of subgrade (2) hereinafter, thickness 1.3m, using solvable salt content
Under in 1.5% and fine particle content filled less than 5% coarse-grained soil；
D. roadbed ontology (4) are filled on brining ground foundation (D) below bottom layer of subgrade lower structure layer (3), are contained using soluble salt
Under amount in 1.5% and fine particle content filled less than 5% coarse-grained soil；
E. water proof berm structure (5) are set to embankment both sides slope foot, using under solvable salt content in 1.5% and fine particle content
Coarse-grained soil less than 5% fills；
F. upper water barrier (6), is set on surface layer of subgrade bed (1) and bottom layer of subgrade between structure sheaf (2)；
G. water barrier (7) is descended, is set in roadbed ontology (4), both sides extend to water proof berm structure (5).
2. high-speed railway embankment reinforcing construction in saline soil area as described in claim 1, it is characterized in that：The upper water barrier
(6), lower water barrier (7) forms 4% weathering from center to both sides.
3. high-speed railway embankment reinforcing construction in saline soil area as claimed in claim 2, it is characterized in that：The upper water barrier
(6), lower water barrier (7) is by upper layer geotextiles (8), geomembrane (9) and lower layer's geotextiles (10) are compound constitutes.
4. high-speed railway embankment reinforcing construction in saline soil area as described in claim 1, it is characterized in that：The water proof berm knot
Structure (5) is highly 1~2m, and width is 2~5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710054365.6A CN106555368B (en) | 2017-01-22 | 2017-01-22 | Saline soil area high-speed railway embankment reinforcing construction |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710054365.6A CN106555368B (en) | 2017-01-22 | 2017-01-22 | Saline soil area high-speed railway embankment reinforcing construction |
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| CN106555368A CN106555368A (en) | 2017-04-05 |
| CN106555368B true CN106555368B (en) | 2018-08-14 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108984923B (en) * | 2018-07-24 | 2022-05-10 | 中铁二院工程集团有限责任公司 | Saline soil cutting bed structure design method based on uplift deformation control |
| CN110158370B (en) * | 2019-05-17 | 2020-09-25 | 中铁二院工程集团有限责任公司 | Coarse-grained saline soil embankment structure of ballast track at speed of 200-250 km/h and construction method |
| CN110158369B (en) * | 2019-05-17 | 2020-09-25 | 中铁二院工程集团有限责任公司 | Coarse-grained saline soil embankment structure of ballast track at speed of 300-350 km/h and construction method |
| CN110158368B (en) * | 2019-05-17 | 2020-09-25 | 中铁二院工程集团有限责任公司 | Coarse-grained saline soil embankment structure of ballastless track at speed of 250-350 km/h and construction method |
| CN111218862B (en) * | 2020-03-04 | 2024-06-18 | 中铁二院工程集团有限责任公司 | High-speed railway saline soil filler embankment structure and construction method |
| CN111424482A (en) * | 2020-03-13 | 2020-07-17 | 东北林业大学 | Road structure based on hydrophobic material water-resisting layer and arrangement method of water-resisting layer |
| CN114855518A (en) * | 2021-11-18 | 2022-08-05 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Permafrost region hydrothermal protection roadbed structure |
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| JP2003201701A (en) * | 1996-07-15 | 2003-07-18 | Railway Technical Res Inst | Method for constructing railway ballast using asphalt structural material |
| CN202369864U (en) * | 2011-12-21 | 2012-08-08 | 中铁第四勘察设计院集团有限公司 | Salinized soil railroad bed structure |
| CN203320370U (en) * | 2013-06-06 | 2013-12-04 | 中铁二院工程集团有限责任公司 | Ballastless track high-speed railway embankment foundation bed structure for seasonally frozen ground area |
| CN103774515A (en) * | 2014-02-20 | 2014-05-07 | 中铁第四勘察设计院集团有限公司 | High speed railway embankment structure in salty soil regions |
| CN104018403A (en) * | 2014-06-24 | 2014-09-03 | 西南交通大学 | Method for constructing heavy haul railway subgrade bed |
| CN105297570A (en) * | 2015-09-25 | 2016-02-03 | 湘潭大学 | Special soil subgrade structure and construction method thereof |
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2017
- 2017-01-22 CN CN201710054365.6A patent/CN106555368B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003201701A (en) * | 1996-07-15 | 2003-07-18 | Railway Technical Res Inst | Method for constructing railway ballast using asphalt structural material |
| CN202369864U (en) * | 2011-12-21 | 2012-08-08 | 中铁第四勘察设计院集团有限公司 | Salinized soil railroad bed structure |
| CN203320370U (en) * | 2013-06-06 | 2013-12-04 | 中铁二院工程集团有限责任公司 | Ballastless track high-speed railway embankment foundation bed structure for seasonally frozen ground area |
| CN103774515A (en) * | 2014-02-20 | 2014-05-07 | 中铁第四勘察设计院集团有限公司 | High speed railway embankment structure in salty soil regions |
| CN104018403A (en) * | 2014-06-24 | 2014-09-03 | 西南交通大学 | Method for constructing heavy haul railway subgrade bed |
| CN105297570A (en) * | 2015-09-25 | 2016-02-03 | 湘潭大学 | Special soil subgrade structure and construction method thereof |
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