CN100427686C - Method for landfilling roadbed in high earth fill on groundwork of soft soil - Google Patents
Method for landfilling roadbed in high earth fill on groundwork of soft soil Download PDFInfo
- Publication number
- CN100427686C CN100427686C CNB2004100670368A CN200410067036A CN100427686C CN 100427686 C CN100427686 C CN 100427686C CN B2004100670368 A CNB2004100670368 A CN B2004100670368A CN 200410067036 A CN200410067036 A CN 200410067036A CN 100427686 C CN100427686 C CN 100427686C
- Authority
- CN
- China
- Prior art keywords
- polystyrene foam
- foam plate
- layer
- roadbed
- groundwork
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002689 soil Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000010169 landfilling Methods 0.000 title claims description 26
- 229920006327 polystyrene foam Polymers 0.000 claims abstract description 88
- 239000004746 geotextile Substances 0.000 claims abstract description 19
- 239000004576 sand Substances 0.000 claims abstract description 19
- 239000006260 foam Substances 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 5
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
- 239000003245 coal Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 239000004571 lime Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 20
- 239000000463 material Substances 0.000 abstract description 3
- 239000000945 filler Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 229920006389 polyphenyl polymer Polymers 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Road Paving Structures (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The present invention provides a filling method for a high fill roadbed on soft soil groundwork, which uses polystyrene foam plates as main filling materials. The present invention comprises the steps: a lower bearing layer is filled; a polystyrene foam plate cushion layer is laid; a first layer of the polystyrene foam plates are laid; the first layer of the polystyrene foam plates are fixed; a second layer of the polystyrene foam plates are laid; each layer of the polystyrene foam plates above the second layer of the polystyrene foam plates are laid; the top surface of the polystyrene foam plates is fixed; geotextile is laid; yellow sand is covered, etc. Each polystyrene foam plate used by the filling method for a high fill roadbed on soft soil groundwork of the present invention has the advantages of low-density, good durability, strong thermal stability, low thermal conductivity and good mechanical property; the quality of a filled roadbed can completely satisfy the construction requirements of a road surface of a high grade when the polystyrene foam plates are used as filling materials for a high fill roadbed on soft soil groundwork and are matched with a correct and strict construction method.
Description
Technical field
The present invention relates to a kind of civil engineering method, particularly a kind of method for landfilling roadbed in high earth fill on groundwork of soft soil.
Background technology
Particularly in the construction at high grade pavement, require settlement amount after construction little, the surface evenness height in civil engineering.This is not difficult to accomplish for hard soil foundation.But for soft foundation, particularly the high made ground section in the soft foundation is a construction Difficulties always.Developed various construction technology at the earthwork construction of soft foundation in the world, for example soil replacement method, mounding and vertical drain method etc.But these methods are used for high made ground section and still have many problems, and its construction working amount is big, and settlement amount after construction is not easy to be guaranteed.In recent years successfully use roadbed filling and the soft based filler of EPS (polystyrene foam plate) in countries such as Holland, Sweden, to substitute the bigger roadbed filling of other proportion as speedway.But EPS also is in the starting stage as the roadbed filling and the soft based filler of high grade pavement, does not have perfect EPS road control criterion and code requirement.Particularly, also there is not perfect method as the roadbed filling of the high made ground section in the soft foundation.
Summary of the invention
Purpose of the present invention is to provide a kind of method for landfilling roadbed in high earth fill on groundwork of soft soil, mainly adopts lightweight polyphenyl vinyl foam plate as roadbed filling, can satisfy the construction quality requirement of high grade pavement.
To achieve these goals, the present invention has adopted following technical scheme: a kind of method for landfilling roadbed in high earth fill on groundwork of soft soil, be characterized in, and with the polystyrene foam plate main stuffing, may further comprise the steps:
A, fill sub-layer
The stake of ground usefulness side is reinforced, and lay lower floor's gravel drainage blanket, lime soil layer, upper strata gravel drainage blanket, fine coal grieshoch from the bottom to top successively, smooth compacting forms sub-layer;
B, laying polystyrene foam plate bed course
Many french drains of excavation are inserted the gravel with the geotextiles parcel in the french drain on sub-layer, and place mat one deck sand is wipeed the bed course of compacting as polystyrene foam plate off then;
C, laying first floor polystyrene foam plate
Lay the first floor polystyrene foam plate on bed course, closely connected splicing links to each other and fissure of displacement laying between each plate;
D, fixing first floor polystyrene foam plate
Down squeezing into metal pin from the first floor polystyrene foam plate connects first floor polystyrene foam plate and bed course and sub-layer fixing;
E, laying second layer polystyrene foam plate
On the first floor polystyrene foam plate that fixes, lay second layer polystyrene foam plate, the levels polystyrene foam plate fissure of displacement is laid, fixing between the aspect of two-layer polystyrene foam plate with the connection of two-sided pawl nail, fixing between the side around the two-layer polystyrene foam plate with the connection of single face pawl nail;
F, above each the strata styrenic foams plate of the laying second layer
Adopt the method same to lay above each the strata styrenic foams plate of the second layer with laying second layer polystyrene foam plate, connect with two-sided pawl nail respectively between the aspect of each strata styrenic foams plate and fix, connect with single face pawl nail respectively between the side around each adjacent layer polystyrene foam plate and fix;
G, the fixing end face of polystyrene foam plate
Connect fixing with single face pawl nail between each plate of the end face of the superiors' polystyrene foam plate;
H, laying geotextiles
On the superiors' polystyrene foam plate, lay one deck geotextiles, and connect fixing with staple and polystyrene foam plate;
I, covering yellow sand
On geotextiles, cover one deck yellow sand and pave smooth.
Above-mentioned method for landfilling roadbed in high earth fill on groundwork of soft soil, wherein, the described french drain of step b excavates one every 10m, every wide 30cm of french drain, dark 30cm.
Above-mentioned method for landfilling roadbed in high earth fill on groundwork of soft soil, wherein, the described yellow sand cushion thickness of step b is 5cm, planeness≤10mm/4m, polystyrene foam plate block outer 0.5-1.0m is stretched out in its outer.
Above-mentioned method for landfilling roadbed in high earth fill on groundwork of soft soil, wherein, the fissure of displacement distance 〉=0.5m between described each the polystyrene foam plate plate of step c.
Above-mentioned method for landfilling roadbed in high earth fill on groundwork of soft soil, wherein, the described metal pin of steps d is L shaped or T shape, the degree of depth in its insertion bed course and the sub-layer is greater than 20cm.
Above-mentioned method for landfilling roadbed in high earth fill on groundwork of soft soil, wherein, the lap width between each width of cloth of the described geotextiles of step h is greater than 35cm, and the polystyrene foam plate block outer 1m of the superiors is stretched out in its outer.
Above-mentioned method for landfilling roadbed in high earth fill on groundwork of soft soil, wherein, the described connection of the step h fixedly U-shaped spacing of the staple of geotextiles and polystyrene foam plate is 50cm.
Above-mentioned method for landfilling roadbed in high earth fill on groundwork of soft soil, wherein, the described yellow sand particle diameter of step I is thick in being, and thickness is 30cm, and at polystyrene foam plate block and the adjacent surface that bankets, the yellow sand covering layer stretches out polystyrene foam plate block outer 1-2m.
Above-mentioned method for landfilling roadbed in high earth fill on groundwork of soft soil, wherein, the laying planeness≤10mm/4m of described each strata styrenic foams plate.
The lightweight polyphenyl vinyl foam plate (EPS) that adopts in the method for landfilling roadbed in high earth fill on groundwork of soft soil of the present invention, have following characteristic: 1, density is light: the density of polystyrene foam plate is 15-30 kilogram/m
3, only be one of percentage of common fillers; 2, good endurance: chemical property is stable in the water sweetening of the soil, is difficult for being decomposed by microorganism, also can not discharge the nutriment of suitable growth of microorganism; 3, heat stability is stronger: EPS 75-80 ℃ very stable, just can melt during near 150 ℃, meet burning things which may cause a fire disaster and also may burn, even but the EPS that contains fire retardant catch fire, also can be from putting out in three seconds; 4, heat conductivity is low: the enclosed cavity structures shape of EPS its have good thermal insulation, its thermal insulation is stronger than soil; 5, good mechanical performance: EPS has fine flexible proterties, in the range of strain of 1-2%, EPS still keeps elastic property, and suction, low temperature, freeze thawing circulation be to the not influence of compressive strength of EPS, the ability of EPS resistance to deformation even be better than dry state under the dampness; Along with temperature descends, the compressive strength of EPS also rises to some extent, and the range of variation of EPS compressive strength is ± 20% under the type testing condition.Because EPS has above excellent properties, makes the landfilling roadbed in high earth fill on groundwork of soft soil material with it, cooperate correct strict job practices, the roadbed quality that it fills out satisfies the construction requirement of high grade pavement fully.
Description of drawings
Fig. 1 is the construction process figure of method for landfilling roadbed in high earth fill on groundwork of soft soil of the present invention;
Fig. 2 is the structural representation of the two-sided pawl nail that uses among the present invention;
Fig. 3 is the structural representation of the single face pawl nail that uses among the present invention.
The specific embodiment
Method for landfilling roadbed in high earth fill on groundwork of soft soil of the present invention can further specify as follows in conjunction with Fig. 1:
At first the stake of ground usefulness side is reinforced, and lay the thick thick fine coal grieshoch of upper strata gravel drainage blanket, 100cm of 25cm thick lower floor's gravel drainage blanket, 30cm thick lime soil layer, 25cm from the bottom to top successively, smooth compacting forms sub-layer.On sub-layer, excavate a french drain after the acceptance(check) every 10m, every wide 30cm of french drain, dark 30cm inserts the gravel that wraps up with geotextiles in french drain, be beneficial to the draining of construction period.The construction control line of setting-out first floor polystyrene foam plate then, according to design drawing, adopt the interior border line summit accurate unwrapping wire of total powerstation with polystyrene foam plate, per ten row are provided with a control line on the line on interior border line summit, as the baseline of control polystyrene foam plate.After the construction control line setting-out of first floor polystyrene foam plate is good can as reference place mat one deck particle diameter be 5cm in thick yellow sand, during place mat, pave to the centre from the roadbed side, every 3m is provided with a vertical control point, yellow sand is transported to work plane with small handcart, with scraper plate along vertical control point wipe off, compacting, accomplish surfacing, elevation allowable error ± 2mm, planeness≤10mm/4m, the construction control line outer 0.5-1.0m of polystyrene foam plate is stretched out in its outer, and the yellow sand layer is as a bed course and a drainage of polystyrene foam plate.Then lay the first floor polystyrene foam plate on the yellow sand bed course, the specification of project plate is 6045mm * 1212mm * 618mm.Construction control line in strict accordance with setting-out during laying carries out, the laying planeness≤10mm/4m of control polystyrene foam plate, and closely connected splicing links to each other and fissure of displacement laying between each plate, fissure of displacement distance 〉=0.5m, the cutting of peripheral sketch plate is all carried out at building-site.Complete the back and down squeeze into L shaped from the polystyrene foam plate or T shape metal pin connects polystyrene foam plate and bed course and sub-layer fixing, the degree of depth in pin insertion bed course and the sub-layer is greater than 20cm.Then press the construction control line of drawing setting-out second layer polystyrene foam plate, on the first floor polystyrene foam plate that fixes, lay second layer polystyrene foam plate, during laying, the levels polystyrene foam plate fissure of displacement is laid, follow closely (its structure is seen shown in Figure 2) connection with two-sided pawl between the aspect of two-layer polystyrene foam plate and fix, fix with single face pawl nail (its structure is seen shown in Figure 3) connection between the side around the two-layer polystyrene foam plate.Then lay above each the strata styrenic foams plate of the second layer in the same way, connect fixing with two-sided pawl nail respectively between the aspect of each strata styrenic foams plate, connect with single face pawl nail respectively between the side around each adjacent layer polystyrene foam plate and fix, lay seven layers altogether.After having spread the layer 7 polystyrene foam plate, will connect fixing with single face pawl nail between each plate of end face of layer 7 polystyrene foam plate.On the layer 7 polystyrene foam plate, lay one deck geotextiles then, make lap width between each width of cloth of geotextiles during laying, make the outer of geotextiles stretch out polystyrene foam plate block outer 1m greater than 35cm.And with staple that geotextiles and polystyrene foam plate connection is fixing, the U-shaped spacing of staple is 50cm.Then on geotextiles, cover a layer thickness and be 30cm in thick yellow sand and pave smoothly, at polystyrene foam plate block and the adjacent surface that bankets, make the yellow sand covering layer stretch out polystyrene foam plate block outer 1-2m.
The roadbed of finishing by above-mentioned construction process promptly can be used as the basal plane of pavement construction.
Claims (9)
1, a kind of method for landfilling roadbed in high earth fill on groundwork of soft soil is characterized in that: be main stuffing with the polystyrene foam plate, may further comprise the steps:
A, fill sub-layer
The stake of ground usefulness side is reinforced, and lay lower floor's gravel drainage blanket, lime soil layer, upper strata gravel drainage blanket, fine coal grieshoch from the bottom to top successively, smooth compacting forms sub-layer;
B, laying polystyrene foam plate bed course
Many french drains of excavation are inserted the gravel with the geotextiles parcel in the french drain on sub-layer, and place mat one deck yellow sand is wipeed the bed course of compacting as polystyrene foam plate off then;
C, laying first floor polystyrene foam plate
Lay the first floor polystyrene foam plate on bed course, closely connected splicing links to each other and fissure of displacement laying between each plate;
D, fixing first floor polystyrene foam plate
Down squeezing into metal pin from the first floor polystyrene foam plate connects first floor polystyrene foam plate and bed course and sub-layer fixing;
E, laying second layer polystyrene foam plate
On the first floor polystyrene foam plate that fixes, lay second layer polystyrene foam plate, the levels polystyrene foam plate fissure of displacement is laid, fixing between the aspect of two-layer polystyrene foam plate with the connection of two-sided pawl nail, fixing between the side around the two-layer polystyrene foam plate with the connection of single face pawl nail;
F, above each the strata styrenic foams plate of the laying second layer
Adopt the method same to lay above each the strata styrenic foams plate of the second layer with laying second layer polystyrene foam plate, connect with two-sided pawl nail respectively between the aspect of each strata styrenic foams plate and fix, connect with single face pawl nail respectively between the side around each adjacent layer polystyrene foam plate and fix;
G, the fixing end face of polystyrene foam plate
Connect fixing with single face pawl nail between each plate of the end face of the superiors' polystyrene foam plate;
H, laying geotextiles
On the superiors' polystyrene foam plate, lay one deck geotextiles, and connect fixing with staple and polystyrene foam plate;
I, covering yellow sand
On geotextiles, cover one deck yellow sand and pave smooth.
2, method for landfilling roadbed in high earth fill on groundwork of soft soil according to claim 1 is characterized in that: the described french drain of step b excavates one every 10m, every wide 30cm of french drain, dark 30cm.
3, method for landfilling roadbed in high earth fill on groundwork of soft soil according to claim 1 is characterized in that: the described yellow sand cushion thickness of step b is 5cm, planeness≤10mm/4m, and polystyrene foam plate block outer 0.5-1.0m is stretched out in its outer.
4, method for landfilling roadbed in high earth fill on groundwork of soft soil according to claim 1 is characterized in that: the fissure of displacement distance 〉=0.5m between described each the polystyrene foam plate plate of step c.
5, method for landfilling roadbed in high earth fill on groundwork of soft soil according to claim 1 is characterized in that: the described metal pin of steps d is L shaped or T shape, and the degree of depth in its insertion bed course and the sub-layer is greater than 20cm.
6, method for landfilling roadbed in high earth fill on groundwork of soft soil according to claim 1 is characterized in that: the lap width between each width of cloth of the described geotextiles of step h is greater than 35cm, and the polystyrene foam plate block outer 1m of the superiors is stretched out in its outer.
7, method for landfilling roadbed in high earth fill on groundwork of soft soil according to claim 1 is characterized in that: the described connection of the step h fixedly U-shaped spacing of the staple of geotextiles and polystyrene foam plate is 50cm.
8, method for landfilling roadbed in high earth fill on groundwork of soft soil according to claim 1, it is characterized in that: the described yellow sand particle diameter of step I is thick in being, thickness is 30cm, and at polystyrene foam plate block and the adjacent surface that bankets, the yellow sand covering layer stretches out polystyrene foam plate block outer 1-2m.
9, method for landfilling roadbed in high earth fill on groundwork of soft soil according to claim 1 is characterized in that: the laying planeness≤10mm/4m of described each strata styrenic foams plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100670368A CN100427686C (en) | 2004-10-11 | 2004-10-11 | Method for landfilling roadbed in high earth fill on groundwork of soft soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100670368A CN100427686C (en) | 2004-10-11 | 2004-10-11 | Method for landfilling roadbed in high earth fill on groundwork of soft soil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1760473A CN1760473A (en) | 2006-04-19 |
| CN100427686C true CN100427686C (en) | 2008-10-22 |
Family
ID=36706684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100670368A Expired - Fee Related CN100427686C (en) | 2004-10-11 | 2004-10-11 | Method for landfilling roadbed in high earth fill on groundwork of soft soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100427686C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PT104125B (en) * | 2008-07-04 | 2010-05-28 | Manuel Filipe Lourenco Serro | MONOLITHIC SYSTEM OF FOUNDATION IN HOMOPOLÍMERO / PAVIMENTO IN RESISTANT AGGREGATES IN SEMI-CONTINUOUS CONFIGURATION |
| CN101368383B (en) * | 2008-09-11 | 2010-04-14 | 中国科学院武汉岩土力学研究所 | Method for treating soft soil roadbed by artificial composite crust layer |
| CN101487262B (en) * | 2009-03-02 | 2011-12-28 | 中交第三航务工程勘察设计院有限公司 | Analyzing and computing method for natural soft soil foundation riprap back filling quantities |
| CN102704364B (en) * | 2012-06-29 | 2014-08-27 | 石家庄铁道大学 | Clay serging tailings subgrade structure and construction method thereof |
| CN104863124B (en) * | 2015-05-11 | 2016-10-05 | 华南理工大学 | A kind of utilize the device and method of soil bearing capacity between grout pile |
| CN106223550B (en) * | 2016-07-21 | 2019-01-22 | 中国建筑第八工程局有限公司 | The off-loading structure and load reducing measure of construction landscape high fill body |
| CN107313319A (en) * | 2017-05-25 | 2017-11-03 | 江苏海川新材料科技有限公司 | A kind of double glazing concrete of fibre tendon pavement structure |
| CN111608169B (en) * | 2020-06-09 | 2022-04-19 | 中铁二院工程集团有限责任公司 | Construction access road structure on soft soil foundation and construction method |
| CN112144542A (en) * | 2020-10-14 | 2020-12-29 | 中建八局广西建设有限公司 | Backfill system for use above built underground structure and construction method thereof |
| CN114737430A (en) * | 2022-05-13 | 2022-07-12 | 中国建筑第二工程局有限公司 | High fill roadbed filling construction method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6146054A (en) * | 1996-04-18 | 2000-11-14 | Screg | Lightweight embankment |
-
2004
- 2004-10-11 CN CNB2004100670368A patent/CN100427686C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6146054A (en) * | 1996-04-18 | 2000-11-14 | Screg | Lightweight embankment |
Non-Patent Citations (4)
| Title |
|---|
| EPS在F1赛车场赛道路基施工中的应用探讨. 刘必荣.上海公路，第2004年卷第3期. 2004 |
| EPS在F1赛车场赛道路基施工中的应用探讨. 刘必荣.上海公路，第2004年卷第3期. 2004 * |
| EPS块件在桥台软土地基处理中的应用. 张水根，王祥真，周培康.上海公路，第2001年卷第3期. 2001 |
| EPS块件在桥台软土地基处理中的应用. 张水根，王祥真，周培康.上海公路，第2001年卷第3期. 2001 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1760473A (en) | 2006-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108442200B (en) | Domestic garbage incineration ash mixed soil composite reinforced roadbed and construction method thereof | |
| CN104790428B (en) | Ultrahigh integrated plastic-steel grid reinforced soil abutment retaining wall structure and construction method thereof | |
| CN100427686C (en) | Method for landfilling roadbed in high earth fill on groundwork of soft soil | |
| CN110438858A (en) | A kind of hard and soft is seamless Pavement Base Structure and its construction method | |
| CN107165013A (en) | Geotechnical grid reinforcement foam concrete light road foundation fills structure and its method | |
| RU72989U1 (en) | DEVICE FOR PROTECTING INDUSTRIAL AREAS FROM FLOODING, STRAIN WATER AND SPRING FLOOD | |
| CN212452152U (en) | Geotechnique's check room adds muscle cement concrete pavement structure | |
| CN113355964A (en) | Deep soft soil roadbed composite structure and construction method | |
| CN108265735A (en) | High latitude High Temperature Permafrost area highway raft plate-pile composite foundation and process for constructing | |
| CN107938456A (en) | Fill out river road construction method | |
| Dang et al. | Modelling of columns and fibre-reinforced load-transfer platform-supported embankments | |
| CN209873479U (en) | Bridgehead filling embankment structure on soft foundation | |
| CN108086087A (en) | A kind of construction method of porous pavement | |
| CN204676593U (en) | A kind of superelevation overall steel-plastic Geogrid Reinforced Soil abutment wall-retaining structure | |
| CN117027013B (en) | Filling slope reinforced by microorganism deposited calcium carbonate technology and construction method thereof | |
| CN108824097A (en) | Prefabricated GFRP pipe concrete stake and armoured concrete slab overhead type roadbed pile slab structure | |
| CN109537389B (en) | EPS (expandable polystyrene) lower embankment structure and construction method thereof | |
| CN218842755U (en) | High-strength composite geotechnical synthetic material reinforced mattress pad layer structure of karst foundation | |
| CN1421575A (en) | Light filled structure and its construction process | |
| CN215856994U (en) | Deep soft soil roadbed multidimensional treatment structure | |
| CN113322966B (en) | Side slope support bedding surface device for foundation pit, construction method and application thereof | |
| AU2021102288A4 (en) | Composite Replacement Structure and Treatment for Soft Base of Coastal Mudflat | |
| CN210238158U (en) | Plateau high-ice-content frozen soil section railway cutting structure | |
| CN209384261U (en) | A kind of anti-deformation cracking retaining wall structure | |
| CN207484194U (en) | A kind of seamless road surface of assembling beam and slab type |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081212 Address after: Royalstar Avenue in Hefei city of Anhui province No. 674 zip code: 230041 Co-patentee after: THE FIRST ENGINEERING CO., LTD. OF CTCE Group Patentee after: CHINA TIESIJU CIVIL ENGINEERING GROUP Co.,Ltd. Address before: Royalstar Avenue in Hefei city of Anhui province No. 674 zip code: 230041 Patentee before: THE FIRST ENGINEERING CO., LTD. OF CTCE Group |
|
| ASS | Succession or assignment of patent right |
Owner name: CHINA RAILWAY NO.4 BUREAU GROUP CO.,LTD. Free format text: FORMER OWNER: 1ST ENGINEERING CO.LTD.,CHINA RAILWAY 4TH BUREAU GROUP Effective date: 20081212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081022 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |