CN104594150B - Structure and method for processing black cotton soil embankment with impervious geotextiles - Google Patents
Structure and method for processing black cotton soil embankment with impervious geotextiles Download PDFInfo
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- CN104594150B CN104594150B CN201410796693.XA CN201410796693A CN104594150B CN 104594150 B CN104594150 B CN 104594150B CN 201410796693 A CN201410796693 A CN 201410796693A CN 104594150 B CN104594150 B CN 104594150B
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- soil
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- seepage geotextile
- cotton regur
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- 239000002689 soil Substances 0.000 title claims abstract description 98
- 239000004746 geotextile Substances 0.000 title claims abstract description 80
- 229920000742 Cotton Polymers 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000010410 layer Substances 0.000 claims abstract description 43
- 238000010276 construction Methods 0.000 claims abstract description 13
- 239000010426 asphalt Substances 0.000 claims abstract description 11
- 239000011229 interlayer Substances 0.000 claims abstract description 9
- 239000004927 clay Substances 0.000 claims abstract description 7
- 238000011049 filling Methods 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 9
- 230000033228 biological regulation Effects 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 5
- 239000004575 stone Substances 0.000 claims description 5
- -1 Polypropylene Polymers 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 238000005056 compaction Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 238000009490 roller compaction Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 2
- 230000006641 stabilisation Effects 0.000 abstract description 3
- 238000011105 stabilization Methods 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 abstract 2
- 238000007688 edging Methods 0.000 abstract 1
- 210000004027 cell Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 206010068052 Mosaicism Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 229910052900 illite Inorganic materials 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- VGIBGUSAECPPNB-UHFFFAOYSA-L nonaaluminum;magnesium;tripotassium;1,3-dioxido-2,4,5-trioxa-1,3-disilabicyclo[1.1.1]pentane;iron(2+);oxygen(2-);fluoride;hydroxide Chemical compound [OH-].[O-2].[O-2].[O-2].[O-2].[O-2].[F-].[Mg+2].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[K+].[K+].[K+].[Fe+2].O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2 VGIBGUSAECPPNB-UHFFFAOYSA-L 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 210000003765 sex chromosome Anatomy 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- E01C3/003—Foundations for pavings characterised by material or composition used, e.g. waste or recycled material
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention provides a structure and a method for processing a black cotton soil embankment with impervious geotextiles. The embankment structure comprises a geogrid gravelly soil base course, impervious geotextile edging and interlayer seepage-proofing layers, a black cotton soil fill stratum and a non-expansive clay top seal layer. The method comprises the following steps: (1) clearing a foundation; (2) setting out; (3) paving three layers of geogrid gravelly soil with the total thickness being 50cm; (4) spreading the impervious geotextiles on two sides of the road foundation, lapping the impervious geotextiles with filled soil by 250cm, turning up the impervious geotextiles on the slope of the road foundation, lapping the impervious geotextiles on the two sides in the middle of an embankment by 100cm after turning up, and bonding by using emulsified asphalt, wherein the lapping width of the adjacent impervious geotextiles is100cm and the impervious geotextiles are bonded by virtue of the emulsified asphalt; (5) spreading the soil and carrying out rolling construction; and (6) filling and rolling the top seal layer. The structure and the method disclosed by the invention are conducive to the stabilization of the embankment and are capable of preventing the embankment from deformation.
Description
Technical field
The present invention relates to application geotechnical grid gravelly soil embankment bottom and anti-seepage geotextile in the treatment of black cotton regur soil embankment
A kind of reinforcement technique.
Background technology
Black cotton regur soil is a kind of special cohesive soil, is a kind of many cracks for being formed in nature geological process and has notable swollen
The geologic body of contracting, clay component is mainly made up of the mineral montmorillonite and illite of strong hydrophilicity.Black cotton regur soil have overconsolidation,
The engineering properties different from normally consolidated clay such as fissurity, water-swellable, dehydration shrinkage cracking and repeated deformation, it is miscellaneous in the soil body
Crack disorderly is dispersed with, often there is long-term potential danger to the deformation failure effect produced by building.Black cotton regur soil is built highway
Engineering, the use of black cotton regur soil is always a problem, if embankment fill material does not use black cotton regur soil, substantial amounts of black cotton regur soil will be caused to abandon
Side, on the one hand increases construction costs, on the other hand causes great harmful effect to surrounding enviroment.If filled using black cotton regur soil
Embankment, rainfall side slope enters to blend to be caused inside underground water capillary rise to embankment the increase of black cotton regur soil embankment water content, occurs
Embankment dilatancy, filling intensity reduction, dry season, due to evaporation, embankment dehydration will cause crack to grow.Drying and watering cycle
Black cotton regur soil embankment easily come down, caved in, slip the disease such as collapse and ftracture.
If the mechanism that disease occurs from black cotton regur soil embankment can be seen that black cotton regur soil embankment and keep water content equiblibrium mass distribution,
Black cotton regur soil can as embankment fill material, therefore black cotton regur soil embankment a punishment thinking be exactly carry out the waterproof of embankment, draining, every
Water and hydrophobic work, while reinforcing side slope of embankment.
Before and after the fifties in last century, foreign countries start to carry out engineering reinforcement using " geosynthetics ", at present, geotechnique's synthesis
Material has been widely used for the every field of Geotechnical Engineering.So-called " geosynthetics ",《Hydraulic and Hydro-Power Engineering geotechnique's synthesis
Materials application technical specification》The definition for being given is " general name for being applied to the synthetic material product of civil engineering ".Anti-seepage geotextile
Be one of which geosynthetics, anti-seepage geotextile be using plastic sheeting as antiseepage base material, it is and non-woven fabric compounded
Seepage by geo-textile material, plastic sheeting is mainly polyvinyl chloride (PVC) and polyethylene (PE).The combination of plastic sheeting and non-woven fabrics is not
The tensile strength and anti-puncture ability of plastic sheeting are only increased, and because nonwoven surface is coarse, increases contact surface
Coefficient of friction, is conducive to the stabilization of geomembrane and protective layer.Anti-seepage geotextile be used in black cotton regur soil embankment structure in, can play every
From the water_air exchange in embankment with the external world, it is ensured that the equilibrium of black cotton regur soil embankment interior moisture content.Simultaneously because anti-seepage geotextile has
Certain tensile resistance, can reinforce black cotton regur soil embankment, improve its stability.
Geotechnical grid is a kind of novel three-dimensional geosynthetics for occurring in the world the eighties in last century, and it is a kind of
The tridimensional network body that high molecular polymer band wide is formed through strength welding, capable of expansion and contraction, can be contracted during transport gathers into folds,
Expansible when using, and back-up sand, rubble or clay material in cell compartment, constitute the flexible structure with powerful lateral and big rigidity
Layer.
The content of the invention
Technical problem：Structure and side it is an object of the invention to provide a kind of anti-seepage geotextile treatment black cotton regur soil embankment
Method.This structure collectively constituted by geotextiles and black cotton regur soil, can solve black cotton regur soil roadbed reclamation sex chromosome mosaicism, can also be rationally sharp
With the black cotton regur soil side of abandoning, Stability Analysis of Structures, the purpose of economical rationality are reached.Embankment and ground have been isolated in the use of geotechnical grid gravelly soil
The water_air exchange of soil, while enhancing the stability of embankment structure.
Technical scheme：The present invention provides following technical scheme：
A kind of anti-seepage geotextile processes the structure of black cotton regur soil embankment, and the embankment structure includes geotechnical grid successively from top to bottom
Rubble embankment bottom, black cotton regur soil fill stratum and non-expanded clay closedtop layer.Wherein black cotton regur soil fill stratum is using antiseepage geotechnique
Cloth bound edge simultaneously sets impervious barrier in interlayer.
Preferably, in the geotechnical grid gravelly soil embankment bottom, the material requirements of geotechnical grid is：
Polypropylene geotextile cell compartment；
A kind of method that anti-seepage geotextile processes black cotton regur soil embankment, the method in turn includes the following steps：
Step 1：Clear base：Excavate ground top layer planting soil or black cotton regur soil 20cm, change and fill out the good non-expansibility material of water stability,
And be compacted, flatten；
Step 2：Setting-out:According to construction drawing setting-out, every layer of bound edge institute is calculated using anti-seepage geotextile size and is cut；
Step 3：Three layers of common 50cm geotechnical grids gravelly soil of laying：First geotechnical grid is launched, foundation surface is laid on, it is fixed
Edge, dispense gravelly soil in geotechnical grid, then roll to regulation packing；
Step 4：Laying anti-seepage geotextile：Anti-seepage geotextile, anti-seepage geotextile and the overlap joint that bankets are laid in roadbed both sides
250cm, anti-seepage geotextile anti-package on roadbed side slope overlaps 100cm after the anti-seepage geotextile anti-package of both sides in the middle part of embankment, uses
Emulsified asphalt is bonded.Adjacent anti-seepage geotextile lap width is 100cm, and is bonded using emulsified asphalt；
Step 5：Paving soil and roller compaction construction：It after grinding compacting is 20cm~25cm, making that every layer of black cotton regur soil placement thickness is
It is preceding that loose laying depth and compaction technology are determined by test section；
Step 6：Closedtop layer is filled and rolled：Closedtop layer material uses the good non-black cotton regur soil material of water stability, every layer of making
Thickness is 20cm, and is rolled to the packing of regulation.
Preferably, the step of described step 4 lays anti-seepage geotextile includes：
Step 1：Anti-seepage geotextile, anti-seepage geotextile and geotechnique are laid respectively in geotechnical grid crushed stone soil layer top both sides first
Cell compartment gravelly soil overlaps 250cm, and anti-seepage geotextile is fixed on geotechnical grid gravelly soil surface；
Step 2：Placement in layers thickness 100cm black cotton regur soil, per thickness 20cm~25cm, then cuts slope by design side slope, cuts slope
First use mechanical roughing, then artificial refine；
Step 3：Both sides anti-seepage geotextile anti-package, and form the overlap joint no less than 100cm, anti-seepage geotextile with embankment middle part
Interlayer is bonded using emulsified asphalt；
Step 4：Laying second layer anti-seepage geotextile, with lower floor anti-seepage geotextile overlap joint 250cm, interlayer uses emulsified asphalt
Bond；
Step 5：Repeat above construction procedure to top layer.
Preferably, the material requirements of anti-seepage geotextile is：
Beneficial effect：1. the non-deformability for causing gravelly soil bottom that uses of geotechnical grid strengthens, and is conducive to embankment
Stabilization.2. the structure that anti-seepage geotextile and black cotton regur soil are collectively constituted has completely cut off influence of the extraneous aqueous vapor to black cotton regur soil embankment, it is ensured that
The equilibrium of embankment interior moisture content, meanwhile, the use of anti-seepage geotextile has humidification to embankment, limit the change of embankment
Shape.3. black cotton regur soil is realized as embankment fill material, the black cotton regur soil engineering side of abandoning is reduced, is conducive to water and soil conservation, saved engineering
Cost, meanwhile, alleviate the environmental pressure on periphery.
Brief description of the drawings
Method below with reference to 1~5 pair of anti-seepage geotextile treatment black cotton regur soil embankment of the present invention of accompanying drawing is carried out in detail
Describe in detail bright (unit is in terms of millimeter in figure).
Fig. 1 is the sectional drawing after anti-seepage geotextile treatment black cotton regur soil embankments construction；
Fig. 2~Fig. 5 is that anti-seepage geotextile processes black cotton regur soil embankments construction schematic diagram, wherein：
Fig. 2 is geotechnical grid rubble embankment bottom sectional drawing；
Fig. 3 is anti-seepage geotextile layout diagram；
Fig. 4 fills schematic diagram for black cotton regur soil；
Fig. 5 is anti-seepage geotextile anti-package schematic diagram.
1.80cm closedtops layer in figure, 2. black cotton regur soil is filled, 3.50cm geotechnical grid gravelly soils, 4. anti-seepage geotextile, 5. breast
Change pitch to bond, 6. geotechnical grid, 7. " U " sprig.
Specific embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, is made of the invention by illustrating
Advantage will become clearer and be readily appreciated that.
The anti-seepage geotextile that the present invention is provided processes the structure of black cotton regur soil embankment, and the embankment structure includes successively from top to bottom
Geotechnical grid rubble embankment bottom, black cotton regur soil fill stratum and non-expanded clay closedtop layer.Wherein black cotton regur soil fill stratum is used
Anti-seepage geotextile bound edge simultaneously sets impervious barrier in interlayer.
In the geotechnical grid gravelly soil embankment bottom, the material requirements of geotechnical grid is：
Polypropylene geotextile cell compartment；
The method of anti-seepage geotextile treatment black cotton regur soil embankment comprises the following steps：
(1) clear base：Excavate ground top layer planting soil or black cotton regur soil 20cm, change and fill out the good non-expansibility material of water stability, and
Compacting, leveling；
(2) setting-out:In strict accordance with construction drawing setting-out, every layer of bound edge institute is calculated using anti-seepage geotextile size and is cut out
Cut；
(3) three layers of common 50cm geotechnical grids gravelly soil are laid：First geotechnical grid is launched, foundation surface, fixed edge is laid on
Edge, dispense gravelly soil in geotechnical grid, then roll to regulation packing；
(4) anti-seepage geotextile is laid：Anti-seepage geotextile, anti-seepage geotextile and the overlap joint 250cm that bankets are laid in roadbed both sides,
Anti-seepage geotextile anti-package on roadbed side slope, 100cm is overlapped after the anti-seepage geotextile anti-package of both sides in the middle part of embankment, is dripped using emulsification
Green grass or young crops bonds.Adjacent anti-seepage geotextile lap width is 100cm, and is bonded using emulsified asphalt；
(5) soil and roller compaction construction are spread：Every layer of black cotton regur soil placement thickness leads to be 20cm~25cm after grinding compacting before making
Overtesting section determines loose laying depth and compaction technology；
(6) closedtop layer is filled and rolled：Closedtop layer material uses the good non-black cotton regur soil material of water stability, every layer of placement thickness
It is 20cm, and rolls to the packing of regulation.
The Specific construction step for oozing geotextile laying is as follows：
1. anti-seepage geotextile, anti-seepage geotextile and geotechnical grid are laid respectively in geotechnical grid crushed stone soil layer top both sides first
Gravelly soil overlaps 250cm, and anti-seepage geotextile is fixed on geotechnical grid gravelly soil surface with U-shaped nail；
2. placement in layers thickness 100cm black cotton regur soil, per thickness 20cm~25cm, then cuts slope by design side slope, and cutting slope first makes
Mechanical roughing is used, then artificial refine；
3. both sides anti-seepage geotextile anti-package, and form the overlap joint no less than 100cm, anti-seepage geotextile interlayer with embankment middle part
Bonded using emulsified asphalt；
4. second layer anti-seepage geotextile is laid, with lower floor anti-seepage geotextile overlap joint 250cm, interlayer is viscous using emulsified asphalt
Knot；
5. above construction procedure to top layer is repeated；
The material requirements of anti-seepage geotextile is：
Claims (3)
1. a kind of anti-seepage geotextile processes the structure of black cotton regur soil embankment, it is characterised in that the embankment structure is wrapped successively from top to bottom
Geotechnical grid rubble embankment bottom, black cotton regur soil fill stratum and non-expanded clay closedtop layer are included, wherein black cotton regur soil fill stratum is adopted
Anti-seepage geotextile bound edge is used, the anti-seepage geotextile that roadbed both sides are reversely wrapped up is extended in road, and is overlapped, and then is formed in interlayer
Impervious barrier,
In the geotechnical grid gravelly soil embankment bottom, the material requirements of geotechnical grid is：
Polypropylene geotextile cell compartment；
2. a kind of method that anti-seepage geotextile processes black cotton regur soil embankment, it is characterised in that the method in turn includes the following steps：
Step 1：Clear base：Excavate ground top layer planting soil or black cotton regur soil 20cm, change and fill out the good non-expansibility material of water stability, and press
Real, leveling；
Step 2：Setting-out:According to construction drawing setting-out, every layer of bound edge institute is calculated using anti-seepage geotextile size and is cut；
Step 3：Three layers of common 50cm geotechnical grids gravelly soil of laying：First geotechnical grid is launched, foundation surface, fixed edge is laid on
Edge, dispense gravelly soil in geotechnical grid, then roll to regulation packing；
Step 4：Laying anti-seepage geotextile：In roadbed both sides, geotechnical grid crushed stone soil layer upper berth sets anti-seepage geotextile, antiseepage geotechnique
Cloth overlaps 250cm with geotechnical grid crushed stone soil layer, is followed closely using " u "-shaped and for anti-seepage geotextile to be fixed on geotechnical grid crushed stone soil layer table
On face；
Step 5：Paving soil and roller compaction construction：Anti-seepage geotextile lays filling for laggard walking along the street base black cotton regur soil, black cotton regur soil placement thickness
By, for 20cm~25cm is controlled, determining loose laying depth and compaction technology by test section before making, then after grinding compacting
Carry out cutting slope by design side slope, cut slope and first use mechanical roughing, then artificial refine；
Step 6：Interlayer impervious barrier：Black cotton regur soil fills 4~5 layers, when 100cm is thick altogether, by anti-seepage geotextile on roadbed side slope
Anti-package, 100cm is overlapped after the anti-seepage geotextile anti-package of both sides in the middle part of embankment, is bonded using emulsified asphalt；
Step 7：Repeat step 4, step 5 and step 6, wherein, the neighbouring anti-seepage geotextile lap width in roadbed both sides is
250cm, and bonded using emulsified asphalt；
Step 8：Closedtop layer is filled and rolled：When black cotton regur soil is filled to closedtop layer bottom surface, stops black cotton regur soil and fill and antiseepage geotechnique
Cloth is constructed, and is carried out closedtop layer and is filled and roll, and closedtop layer material uses the good non-black cotton regur soil material of water stability, every layer of placement thickness
It is 20cm, and rolls to the packing of regulation.
3. the method that anti-seepage geotextile according to claim 2 processes black cotton regur soil embankment, it is characterised in that
The material requirements of anti-seepage geotextile is：
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| CN105672076B (en) * | 2016-03-09 | 2018-05-25 | 中国路桥工程有限责任公司 | A kind of water proof road structure |
| CN106677154A (en) * | 2017-01-20 | 2017-05-17 | 山西省交通科学研究院 | Collapsible loess foundation rubble frame structure reinforcement system and reinforcement method |
| CN107419732A (en) * | 2017-09-13 | 2017-12-01 | 谢金钊 | The bank protection earthfill structure of anti-collapse |
| CN108316079B (en) * | 2018-04-02 | 2023-07-21 | 长沙理工大学 | Pavement structure and construction method thereof |
| CN110041039B (en) * | 2019-02-15 | 2020-06-30 | 中国科学院地质与地球物理研究所 | Construction method for improving embankment by using phosphogypsum |
| CN111441211A (en) * | 2020-04-10 | 2020-07-24 | 中铁六局集团天津铁路建设有限公司 | Composite roadbed structure made of carbon soft rock and geosynthetic material |
| CN112144336A (en) * | 2020-09-04 | 2020-12-29 | 广东同创科鑫环保有限公司 | Method for preventing Bayer process red mud-based roadbed external seepage |
| CN113417183A (en) * | 2021-07-26 | 2021-09-21 | 招商局重庆交通科研设计院有限公司 | Red clay roadbed and construction method |
| CN113846526A (en) * | 2021-11-09 | 2021-12-28 | 中交路桥建设有限公司 | Soft soil roadbed disposal method |
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| NL1023902C2 (en) * | 2003-07-11 | 2005-01-12 | Ooms Avenhorn Holding Bv | Method for reinforcing a soil for a traffic route, such as a road or a railroad track. |
| CN100464034C (en) * | 2005-06-17 | 2009-02-25 | 长沙理工大学 | Flexible reinforced retaining structure and construction method therefor |
| CN101463599A (en) * | 2009-01-16 | 2009-06-24 | 湖南大学 | Bidirectional reinforcing and water drainage reinforcing means for highway soft soil foundation |
| CN202157255U (en) * | 2011-07-18 | 2012-03-07 | 铁道第三勘察设计院集团有限公司 | Geogrid wrapped paving structure |
| CN102535261A (en) * | 2012-03-19 | 2012-07-04 | 中铁第四勘察设计院集团有限公司 | Railway subgrade structure of seismic area |
-
2014
- 2014-12-18 CN CN201410796693.XA patent/CN104594150B/en not_active Expired - Fee Related
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| CN104594150A (en) | 2015-05-06 |
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