CN2305431Y - Composite fabric holed plastic sheet earth work lattice framework - Google Patents
Composite fabric holed plastic sheet earth work lattice framework Download PDFInfo
- Publication number
- CN2305431Y CN2305431Y CN 97221293 CN97221293U CN2305431Y CN 2305431 Y CN2305431 Y CN 2305431Y CN 97221293 CN97221293 CN 97221293 CN 97221293 U CN97221293 U CN 97221293U CN 2305431 Y CN2305431 Y CN 2305431Y
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- CN
- China
- Prior art keywords
- plastic sheet
- geotechnical grid
- framework
- fabric
- holed plastic
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a holed plastic sheet earth work lattice framework of composite fabric type. The surface of the holed plastic sheet forming the lattice framework is covered with a layer of pervious synthetic textile. The holed plastic sheet is staggered and welded in pairs face to face in order to form a honeycomb-shaped lattice structure when the holed plastic sheet is drawn. The utility model is used for foundation construction needed reinforcing at road beds, embankments, slopes, etc., and has the advantages of favorable draining performance, avoidance of filler in the framework running off following water, enhancement of erosion protection and erosion resistance of the framework, and reduction of maintenance load.
Description
The utility model relates to a kind of geotechnical grid, particularly relates to a kind of made geotechnical grid of sheet material that is composited by perforate plastic sheet and fabric.
Geotechnical grid is existing many application aspect building the road, the roadbed that is used to renovate slope failure, railway handle and the protection aspect of embankment good technically effectively.Before once used three-dimensional boxwork wooden or made of iron to carry out based process.Along with the development of macromolecular material, recently, adopted the plastic sheet weldering to make geotechnical grid, the time spent can be not superimposed owing to this geotechnical grid, can launch during use, its manufacturing, transportation and use all very conveniently thereby are widely used in firm, the bank protection, bank strengthening etc. of subgrade.
Above-mentioned geotechnical grid is the cellular structure of sealing, its fatal shortcoming is effectively water to be drained, when external water sources such as rainwater, snow-broth enter in the sandstone earth that geotechnical grid fills out, easily under the lattice chamber, form covered conduit, cause caving in of not observing, thereby destroy the structure of geotechnical grid.European patent EP 0378309 has disclosed a kind of geotechnical grid of side-wall hole, this lattice chamber is welded by the plastic sheet of perforate is staggered face-to-face in twos, though this lattice chamber is easy to draining, but the materials of being filled out such as earth sandstone are moved with the mobile of water, thereby finally also still can destroy the structure of geotechnical grid.
The purpose of this utility model provides a kind of new geotechnical grid, and it both had been convenient to the circulation of water, can prevent that again the materials of being filled out such as earth sandstone from moving between the grid of geotechnical grid, thereby strengthen the geotechnical grid stability of structure.
The purpose of this utility model is to adopt following measure to realize: will have a kind of fabric of at least one surface recombination of the plastic sheet in hole, complex method can be heat seal or pressing, and coverage rate is the whole plastic sheet surface that comprises aperture.Fabric commonly used is a polypropylene non-woven fabric, also can be other permeable synthetic textiles.The welding that then plastic sheet of one group of perforate interlocked Face to face in twos makes after welding is finished, and when when outwards stretching perpendicular to the unilateral direction of plastics, can form the geotechnical grid of a boxwork structure.Welding is carried out with the ultrasonic bonding mode, and fusion length is exactly the width of plastic sheet.Each plastic sheet length is 200～600cm, and the plastic sheet width is 8～20cm, and plastic sheet thickness is 1～1.5mm.Each is 1/10～1/100 of a plastic sheet length to the distance between the plastic sheet weld seam.Aperture is a garden shape, and bore dia can be 2～4mm, and the little number of perforations and the arrangement mode of whole plastic sheet can be determined on demand, can insert fillers such as earth sandstone in the grid.After secondary waters such as rainwater, snow-broth entered filler in the geotechnical grid, water can flow freely between the lattice chamber through permeable fabric, thereby discharges the lattice chamber smoothly.And filler be owing to can not see through fabric, avoided therefore that filler moves the leakage that causes with water in the lattice chamber, guaranteed the integrality and the stability of geotechnical grid structure.Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is for forming the used sheet material of geotechnical grid at compound fabric not with the schematic diagram before welding.
Fig. 2 is the schematic diagram of geotechnical grid of the present utility model at extended state.
In Fig. 1, [1] is the plastic sheet surface, [2] aperture for offering on the sheet material.
Getting length is 600cm, and width is 10cm, and thickness is the plastic sheet of 1mm, offers 120 of apertures thereon.With the plastic sheet of this perforate method each compound one deck polypropylene non-woven fabric on two surface by pressing, get this 50 of plastic sheet after compound then and become one group, use the ultrasonic bonding utensil with the sheet material welding that interlocks in twos Face to face.Distance on the every pair of plastic sheet between the weld seam is 30cm, and weld width is consistent with sheet width.After welding finishes, apply pulling force, can form the geotechnical grid of honeycombed network as shown in Figure 2 after the stretching in direction perpendicular to the plastic sheet face.
In Fig. 2, plastic sheet [1] is linked to be the geotechnical grid of cellular structure mutually by weld seam [4], and this moment, aperture was covered by nonwoven [3].When the foundation construction of roadbed, embankment, slope etc. being located do to reinforce, in geotechnical grid, fill fillers such as adding earth, sandstone.After secondary waters such as rain, snow entered filler in the geotechnical grid, the aperture that moisture content can see through between nonwoven flowed freely between the lattice chamber, thereby discharges the lattice chamber smoothly, and filler is still firmly stayed among the lattice chamber owing to can not see through fabric.
Adopt geotechnical grid described in the utility model, because compound one deck synthetic textiles on the sheet material, therefore make it except that good drainage is arranged, can avoid the leakage that causes with the water migration of fill material in the lattice chamber again, guarantee the integrality and the stability of geotechnical grid structure, thereby improved the behavior in service of geotechnical grid, strengthened the antiscour and the erosiveness of roadbed side slope, reduce bedding maintenance and maintenance load, improved application life.
Claims (5)
1, a kind of compound fabric type perforate plastic sheet geotechnical grid, be welded by the plastic sheet of one group of perforate is staggered in twos Face to face, when stretching with direction perpendicular to plastic cover, can form a cellular structure, being characterized as of this geotechnical grid also is compounded with one deck fabric before plastic sheet welds on the surface of each plastic sheet, this fabric covers all apertures.
2,, it is characterized by and have at least one side to be compounded with one deck fabric on each plastic sheet according to the described geotechnical grid of claim 1.
3, according to claim 1 or 2 described geotechnical grids, it is characterized by fabric is nonwoven.
4, according to the described geotechnical grid of claim 1, it is characterized by each is 1/10～1/100 of whole plastic sheet length to the distance between the plastic sheet weld seam.
5, according to the described geotechnical grid of claim 1, the bore dia that it is characterized by aperture is 2～4cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97221293 CN2305431Y (en) | 1997-07-17 | 1997-07-17 | Composite fabric holed plastic sheet earth work lattice framework |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97221293 CN2305431Y (en) | 1997-07-17 | 1997-07-17 | Composite fabric holed plastic sheet earth work lattice framework |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2305431Y true CN2305431Y (en) | 1999-01-27 |
Family
ID=33936732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97221293 Expired - Fee Related CN2305431Y (en) | 1997-07-17 | 1997-07-17 | Composite fabric holed plastic sheet earth work lattice framework |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2305431Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102174844A (en) * | 2011-03-11 | 2011-09-07 | 西安诚利信息科技有限公司 | Top plate earth-covering greening water repellent network drainage system for underground facility |
| CN103866751A (en) * | 2014-03-14 | 2014-06-18 | 王奇伟 | Geocell with stable honeybee lattices |
| CN106574452A (en) * | 2014-01-27 | 2017-04-19 | 吉欧泰克科技有限公司 | Perforated geocell |
| CN108222031A (en) * | 2018-01-04 | 2018-06-29 | 河南省公路工程局集团有限公司 | A kind of reorganization and expansion Superhighway Side Slope Protection system |
| CN109642404A (en) * | 2016-08-26 | 2019-04-16 | 米奇有限责任公司 | The TGXG and its production method of reinforcing |
-
1997
- 1997-07-17 CN CN 97221293 patent/CN2305431Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102174844A (en) * | 2011-03-11 | 2011-09-07 | 西安诚利信息科技有限公司 | Top plate earth-covering greening water repellent network drainage system for underground facility |
| CN106574452A (en) * | 2014-01-27 | 2017-04-19 | 吉欧泰克科技有限公司 | Perforated geocell |
| CN106574452B (en) * | 2014-01-27 | 2020-04-03 | 吉欧泰克科技有限公司 | Perforated geocell |
| CN103866751A (en) * | 2014-03-14 | 2014-06-18 | 王奇伟 | Geocell with stable honeybee lattices |
| CN103866751B (en) * | 2014-03-14 | 2015-10-28 | 王奇伟 | The geotechnical grid that a kind of honeybee lattice are stable |
| CN109642404A (en) * | 2016-08-26 | 2019-04-16 | 米奇有限责任公司 | The TGXG and its production method of reinforcing |
| CN108222031A (en) * | 2018-01-04 | 2018-06-29 | 河南省公路工程局集团有限公司 | A kind of reorganization and expansion Superhighway Side Slope Protection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |