CN103898824B - The method that Cold And Frozen-soil Regions roadbed processes substrate with plastic draining board - Google Patents
The method that Cold And Frozen-soil Regions roadbed processes substrate with plastic draining board Download PDFInfo
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- CN103898824B CN103898824B CN201410170456.2A CN201410170456A CN103898824B CN 103898824 B CN103898824 B CN 103898824B CN 201410170456 A CN201410170456 A CN 201410170456A CN 103898824 B CN103898824 B CN 103898824B
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- plastic draining
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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
Abstract
The method that Cold And Frozen-soil Regions roadbed processes substrate with plastic draining board.Highway is carried out on extremely frigid zones ever-frozen ground to build, change the water and heat condition of original permafrost soil geology, cause the redistribution of hydro-thermal, so as to cause roadbed thaw collapse, collapse, the disease such as pavement crack, traffic normally travel or cannot suspend traffic, and influence highway service life.The method of the present invention includes:Permafrost Area embankment substrate table soil is removed to frozen soil layer, change and fill out graded broken stone, graded broken stone roller-compaction, the road camber higher than 3% is flattened and made, horizontal plastic draining board is laid, high-order plate pushes down low level plate during overlap joint, horizontal plastic draining board extends into longitudinal french drain, then drain bar is fixed, the thick flour fillers with good water penetration of 20CM is filled on drain bar, embankment sets the banket wide more than 4m outside side slope of embankment using clear table soil and spoir simultaneously.The present invention is used for Cold And Frozen-soil Regions roadbed base treatment.
Description
Technical field：
The present invention relates to a kind of method that Cold And Frozen-soil Regions roadbed processes substrate with plastic draining board.
Background technology：
Highway is carried out on extremely frigid zones ever-frozen ground to build, the water and heat condition of original permafrost soil geology is changed, and is caused
The redistribution of hydro-thermal, so as to cause roadbed thaw collapse, collapse, the disease such as pavement crack, traffic cannot normally travel or in break off a friendship
It is logical, influence highway service life.
The content of the invention：
It is an object of the invention to provide a kind of method that Cold And Frozen-soil Regions roadbed processes substrate with plastic draining board.
The object of the present invention is achieved like this：
A kind of method that Cold And Frozen-soil Regions roadbed processes substrate with plastic draining board, by Permafrost Area embankment substrate table
Soil is removed to frozen soil layer, is changed and is filled out graded broken stone, and thickness is equal to thickness is excavated, graded broken stone roller-compaction, flattens and make height
In 3% road camber, beneficial to transverse drainage, horizontal plastic draining board is laid, high-order plate pushes down low level plate, horizontal plastic row during overlap joint
Water plate extends into longitudinal french drain, then fixes drain bar, and the thick flour fillers with good water penetration of 20CM are filled on drain bar,
Play cushioning effect, moisture is discharged to both sides, longitudinal french drain thickness be replacement thickness with filled slope on plate and, embankment
The banket wide more than 4m, longitudinal blind ditch construction are set using clear table soil and spoir outside side slope of embankment simultaneously, french drain thickness is
It is being banketed on replacement thickness and plate and, according to design requirement using technical measures such as GSZs, increase roadbed globality and by force
Degree, weeper drain will set reasonable longitudinal slope.
Beneficial effect：
1. the present invention is effectively guaranteed roadbed substrate construction quality, it is to avoid thaw collapse, frost heave, collapse, pavement crack etc.
The generation of disease.
Easy construction of the present invention, is all versatile material using material, is readily available.The present invention is applied to extremely frigid zones for many years
Roadbed substrate construction under frozen soil geological conditions.
The present invention relative to Composite foundation constructions such as " interface heights ", " excavate frozen soil change fill out " and " Dense Broken Stone Peg ",
Save substantial amounts of Load materials, such as reinforcing bar, rubble, cement, in（Slightly）Sand, graded gravel etc., energy saving have deep to environmental protection
Remote meaning.The present invention implements to have saved the duration, considerably reduces construction cost, and construction cost can at least be reduced
30%.Achieve preferable economic benefit.
Present invention efficiently solves the protection problem of permafrost soil, the resistance to overturning of Permafrost Area roadbed is improved, subtracted
Overhaul number of times is lacked, operation cost reduction extends the service life of highway, and social benefit is notable.
Brief description of the drawings：
Fig. 1 is construction flow chart of the invention.
Specific embodiment：
Embodiment 1：
A kind of method that Cold And Frozen-soil Regions roadbed processes substrate with plastic draining board, by Permafrost Area embankment substrate table
Soil is removed to frozen soil layer, is changed and is filled out graded broken stone, and thickness is equal to thickness is excavated, graded broken stone roller-compaction, flattens and make height
In 3% road camber, beneficial to transverse drainage, horizontal plastic draining board is laid, high-order plate pushes down low level plate, horizontal plastic row during overlap joint
Water plate extends into longitudinal french drain, then fixes drain bar, and the thick flour fillers with good water penetration of 20CM are filled on drain bar,
Play cushioning effect, moisture is discharged to both sides, longitudinal french drain thickness be replacement thickness with filled slope on plate and, embankment
The banket wide more than 4m, longitudinal blind ditch construction are set using clear table soil and spoir outside side slope of embankment simultaneously, french drain thickness is
It is being banketed on replacement thickness and plate and, according to design requirement using technical measures such as GSZs, increase roadbed globality and by force
Degree, weeper drain will set reasonable longitudinal slope.
Embodiment 2：
The method that Cold And Frozen-soil Regions roadbed according to embodiment 1 processes substrate with plastic draining board, according to for many years
Situations such as engineering geology of Frozen earth section, weather conditions and construction manpower each road working procedure of reasonable arrangement, maximum possible reduces
The open-assembly time of ever-frozen ground, reduce the artificial disturbance to frozen soil.
Permafrost Area embankment substrate table soil is removed to frozen soil layer, change fill out graded broken stone class material be beneficial to it is permeable, it is whole
Equal and make the road camber more than 3% and be beneficial to transverse drainage.
Lay horizontal plastic draining board, the heat exchange of cut-off Roadbed Soil and substrate frozen soil.20CM is filled on drain bar
Thick flour filler, plays cushioning effect, and moisture is discharged to both sides.Embankment both sides set longitudinal french drain.
The banket wide more than 4m is set using clear table soil and spoir outside side slope of embankment.
Embodiment 3：
The method that Cold And Frozen-soil Regions roadbed according to embodiment 1 or 2 processes substrate with plastic draining board, operation will
Point is as follows：
Excavate table soil, net non-applicability soil should be dug and disturb frozen soil less as far as possible again.
Change and fill out graded broken stone, thickness will be equal to thickness is excavated.
Graded broken stone roller-compaction, it is ensured that the road camber more than 3%.
Horizontal plastic draining board laying, wants high-order plate to push down low level plate during overlap joint.
Horizontal plastic draining board will extend into longitudinal french drain.
Fixed drain bar.
The fine grained soil of good water permeability is filled on plate.
Longitudinal blind ditch construction, french drain thickness be replacement thickness with plate on banket and.
Embankment carries out banket construction simultaneously.Detect water content, it is ensured that the water content that fine grained soil is filled is optimal
Water content is interval.
Embodiment 4：
The method that Cold And Frozen-soil Regions roadbed according to embodiment 1 or 2 or 3 processes substrate with plastic draining board, material
Material is with equipment as shown in table 1, table 2：
Table 1
Table 2.
Embodiment 5：
The method that Cold And Frozen-soil Regions roadbed according to embodiment 1 or 2 or 3 or 4 processes substrate with plastic draining board,
GPRS good engineering time when excavating table soil, to be constructed when melting in the spring.In work progress, should take measures keep roadbed and
Surrounding frozen soil is in frozen state.During using cohesive soil or the bad native railway embankment of water penetration, the water content of soil should be controlled, rolled
When water content control in the range of optimum moisture content ± 2%.According to design requirement using technical measures such as GSZs, increase road
Base globality and intensity.Underground water develops location, and roadbed gutter should have seepage control measure.The construction of the structures such as overfall should be by design
It is required that taking reinforcement measure.To ensure drain bar not movement and deformation when being banketed on drain bar.The graded broken stone fines for filling is certain
Control clay content.Strictly to be constructed more than 4m bankets wide to what embankment both sides were set, construction is also adopted by layered rolling,
Compactness detection is carried out layer by layer.Weeper drain will set reasonable longitudinal slope.The laying of composite geo-membrane, should note its in construction
It is smooth, prevent occurring folding in construction, play good antiseepage effect.
Claims (1)
1. a kind of method that Cold And Frozen-soil Regions roadbed processes substrate with plastic draining board, it is characterized in that：When excavating table soil, in the spring
Constructed when melting, in work progress, take measures to keep roadbed and surrounding frozen soil to be in frozen state, by Permafrost Area road
Levee foundation bottom table soil is removed to frozen soil layer, is changed and is filled out graded broken stone, and thickness is equal to thickness is excavated, graded broken stone roller-compaction, leveling
And road camber higher than 3% is made, and beneficial to transverse drainage, horizontal plastic draining board is laid, high-order plate pushes down low level plate, water during overlap joint
Flat plastic draining board extends into longitudinal french drain, then fixes drain bar, 20CM is filled on drain bar thick with good water penetration
Flour filler, play cushioning effect, moisture is discharged to both sides, and longitudinal french drain thickness is replacement thickness and filled slope on plate
With, embankment is set using clear table soil and spoir outside side slope of embankment and is more than 4m bankets wide simultaneously, longitudinal blind ditch construction,
Increase roadbed globality and intensity, weeper drain will set reasonable longitudinal slope, using the bad native railway embankment of cohesive soil or water penetration,
The water content of soil is controlled, in the range of optimum moisture content ± 2%, roadbed gutter has seepage control measure to water content control, applies when rolling
Work uses layered rolling, and compactness detection is carried out layer by layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410170456.2A CN103898824B (en) | 2014-04-25 | 2014-04-25 | The method that Cold And Frozen-soil Regions roadbed processes substrate with plastic draining board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410170456.2A CN103898824B (en) | 2014-04-25 | 2014-04-25 | The method that Cold And Frozen-soil Regions roadbed processes substrate with plastic draining board |
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| Publication Number | Publication Date |
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| CN103898824A CN103898824A (en) | 2014-07-02 |
| CN103898824B true CN103898824B (en) | 2017-05-31 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105200881B (en) * | 2015-10-21 | 2017-07-14 | 正平路桥建设股份有限公司 | The construction method of High-cold regions roadbed freeze-harm Comprehensive Treatment structure |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2004278228A (en) * | 2003-03-18 | 2004-10-07 | Cognis Japan Ltd | Waterproof pavement construction method of floor slab |
| JP4685534B2 (en) * | 2005-07-19 | 2011-05-18 | ダウ化工株式会社 | Anti-freezing structure |
| CN101307586A (en) * | 2008-05-29 | 2008-11-19 | 中国科学院寒区旱区环境与工程研究所 | Broken stone slope protector and air-duct composite roadbed |
| CN203212971U (en) * | 2013-04-19 | 2013-09-25 | 中交第一公路勘察设计研究院有限公司 | Thermal probe insulation board type expressway subgrade widening structure on soil-containing ice layer segment |
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