CN104191741A - Compound geotechnical cloth - Google Patents
Compound geotechnical cloth Download PDFInfo
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- CN104191741A CN104191741A CN201410374994.3A CN201410374994A CN104191741A CN 104191741 A CN104191741 A CN 104191741A CN 201410374994 A CN201410374994 A CN 201410374994A CN 104191741 A CN104191741 A CN 104191741A
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- cloth
- short fiber
- woven geotextile
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Abstract
The invention relates to compound geotechnical cloth which comprises a first short fiber geotechnical cloth layer and a second short fiber geotechnical cloth layer, wherein an organic woven geotechnical cloth layer is fixed between the first short fiber geotechnical cloth layer and the second short fiber geotechnical cloth layer through a needled manner. The compound geotechnical cloth disclosed by the invention is reasonable in structural design, and the advantages of woven geotechnical cloth and non-woven geotechnical cloth are combined.
Description
Technical field:
The present invention relates to a kind of composite earthwork cloth.
Background technology:
Geotextiles, claims again geotextile, and it is the water penetration geosynthetics being formed by acupuncture or braiding by synthetic fibers.Finished product is cloth shape, and general width is 4-6 rice, and length is 50-100 rice.Geotextiles has outstanding filtration, draining, isolation, reinforcement, antiseepage, protective action, have lightweight, tensile strength is high, good penetrability, high temperature resistant, anti-freezing, ageing-resistant, corrosion-resistant.Geotextiles is divided into spins geotextiles and non-woven geotextile.
Non-woven geotextile is to be arranged and reticulate through different equipment and process by long filament or short fiber, through techniques such as acupunctures, allowing different fibers be interweaved together, entanglement set makes fabric specification mutually, allow fabric sofetening, plentiful, abundant, stiffening, to reach different thickness, meet instructions for use, non-woven geotextile has good fabric gap, there is good adhesive force, because fiber softening has certain lear energy, there is good distortion adaptive capacity simultaneously, there is good flat drainage ability simultaneously, there is good coefficient of friction in the many gaps of soft surface, can increase the adhesive ability of grogs etc., can prevent that fine particle from passing through, stoped the loss of particle to get rid of excessive moisture simultaneously, surface is soft a good protective capability.They can play the effects such as good filtration, isolation, reinforcement, protection, are a kind of widely used geosynthetics.
The advantage of non-woven geotextile is: 1. good penetrability; 2. good heat preservation performance; Flexible, can restore; 4. the directionality that there is no cloth; 5. applied range, the enhancing that Main Function is engineering, isolation, anti-filter, draining, is widely used in the fields such as water conservancy, highway, railway, also can in seepage control project, use geotextiles as the protective layer of geomembrane, makes to protect impervious barrier not to be damaged; 6. compare the advantages such as speed of production is fast, price is low, can produce in a large number with woven geotextile.
The shortcoming of non-woven geotextile is: 1. poor with woven fabric phase specific strength and durability; 2. can not as other clothes, clean; 3. so fiber is arranged and easily to be split from right angle orientation etc. by certain orientation.
There is the geotextiles spun to be formed by the parallel yarn of at least two groups (or flat filament), one group of vertical (direction that fabric is advanced) along loom claims warp thread, another group lateral arrangement is called weft yarn, by different establishment braiding apparatus and technique, warp thread and weft yarn weave in are made into cloth shape, can be woven into according to the different scopes of application different thickness and packing, generally spin geotextiles thinner, to all thering is great tensile strength (longitude is greater than latitude), there is good stability in length and breadth.
There is the advantage of the geotextiles spun to be: 1. green strength is high; 2. Stability Analysis of Structures; 3. corrosion-resistant; 4. good water permeability; 5. wearability is good, and strength loss rate is little; 6. engineering parameter compliance rate is high.
There is the shortcoming of the geotextiles spun to be: 1. construction process requirement is high; 2. recoverability is poor; Complex manufacturing, yield poorly; 4. independent utility scope is little, and the reinforcement that has the geotextiles spun to be generally applied to earthwork engineering project strengthens, and major function is to reinforce to strengthen, and has planar isolated and defencive function, does not possess flat drainage function.
In sum, there is the shortcoming of the geotextiles spun and non-woven geotextile that it is limited by very large in application aspect.Therefore, market is needed badly and a kind ofly can be combined with the composite earthwork cloth product that spins geotextiles and non-woven geotextile advantage.
Summary of the invention:
The invention provides a kind of composite earthwork cloth, its reasonable in design, has combined and has spun geotextiles and non-woven geotextile advantage, has solved problems of the prior art.
The present invention solves the problems of the technologies described above adopted technical scheme to be: it comprises first short fiber geotechnique's layer of cloth and the second short fiber geotechnique layer of cloth, between first short fiber geotechnique's layer of cloth and the second short fiber geotechnique layer of cloth, by acupuncture mode, is fixed with woven geotextile layer.
Described first short fiber geotechnique's layer of cloth and the second short fiber geotechnique layer of cloth are acupuncture polypropylene chopped fiber geotextiles or terylene short fiber geotextiles.
Described woven geotextile layer is polypropylene filament yarn woven geotextile or polyester filament woven geotextile.
Structure of the present invention adopts such scheme, reasonable in design, combine the advantage of spinning geotextiles and non-woven geotextile, it had both been had has the height of the geotextiles spun to indulge the features such as transverse tensile strength, high CBR bursting strength, low fracture elongation, has again the features such as the high adhesion force of non-woven geotextile, high drainage concurrently.In addition, due in the fixed operation of acupuncture, by hangnail and pre-thorn operation, make respectively the fiber on first short fiber geotechnique's layer of cloth and the second short fiber geotechnique layer of cloth be retained in the first short fiber geotechnique layer of cloth, between woven geotextile layer and the second short fiber geotechnique layer of cloth, woven geotextile layer and the first short fiber geotechnique layer of cloth have been strengthened, peel strength between the second short fiber geotechnique layer of cloth, woven geotextile layer is firmly fixed between first short fiber geotechnique's layer of cloth and the second short fiber geotechnique layer of cloth, thereby make the first short fiber geotechnique layer of cloth, woven geotextile layer and the second short fiber geotechnique layer of cloth form a firmly integral body.
Accompanying drawing explanation:
Fig. 1 is structural representation of the present invention.
In figure, the 1, first short fiber geotechnique layer of cloth, the 2, second short fiber geotechnique layer of cloth, 3, woven geotextile layer, 4, fiber.
The specific embodiment:
For clearly demonstrating the technical characterstic of this programme, below by the specific embodiment, and in conjunction with its accompanying drawing, the present invention will be described in detail.
As shown in FIG., the present invention includes first short fiber geotechnique's layer of cloth 1 and the second short fiber geotechnique layer of cloth 2, between first short fiber geotechnique's layer of cloth 1 and the second short fiber geotechnique layer of cloth 2, by acupuncture mode, be fixed with woven geotextile layer 3.First short fiber geotechnique's layer of cloth 1 and the second short fiber geotechnique layer of cloth 2 are acupuncture polypropylene chopped fiber geotextiles or terylene short fiber geotextiles, and they belong to non-woven geotextile.Woven geotextile layer 3 is polypropylene filament yarn woven geotextile or polyester filament woven geotextile, and they belong to spins geotextiles.
Preparation method of the present invention is as follows: utilize high speed needling process, the first short fiber geotechnique layer of cloth 1 becomes after net with the second short fiber geotechnique layer of cloth 2 shredding mixing respectively, combing (or air-flow), utilize unreeling machine that woven geotextile layer 3 is placed between first short fiber geotechnique's layer of cloth 1 and the second short fiber geotechnique layer of cloth 2, in lapping operation, form upper, middle and lower three-decker, be that upper strata is the first short fiber geotechnique layer of cloth 1, middle level is woven geotextile layer 2, lower floor is the second short fiber geotechnique layer of cloth 3, by drawing-off and the fixed operation of acupuncture, finally forms this product.
The fixed operation of acupuncture comprise hangnail, in advance thorn and main thorn operation.In hangnail operation, pricker moves from the bottom up, thereby penetrate successively the second short fiber geotechnique layer of cloth 2, woven geotextile layer 3 and the first short fiber geotechnique layer of cloth 1, make the barb of pricker scrape the fiber 4 on the first short fiber geotechnique layer of cloth 1, after back stitching, make fiber 4 be retained between the first short fiber geotechnique layer of cloth 1, woven geotextile layer 3 and the second short fiber geotechnique layer of cloth 2, woven geotextile layer 3 is fixed between first short fiber geotechnique's layer of cloth 1 and the second short fiber geotechnique layer of cloth 2.In pre-thorn operation, pricker moves from top to bottom, thereby penetrate successively the first short fiber geotechnique layer of cloth 1, woven geotextile layer 3 and the second short fiber geotechnique layer of cloth 2, make the barb of pricker scrape the fiber 4 on the second short fiber geotechnique layer of cloth 2, after back stitching, make fiber 4 be retained between the first short fiber geotechnique layer of cloth 1, woven geotextile layer 3 and the second short fiber geotechnique layer of cloth 2, woven geotextile layer 3 is fixed between first short fiber geotechnique's layer of cloth 1 and the second short fiber geotechnique layer of cloth 2.By hangnail and pre-thorn operation, make respectively the fiber 4 on first short fiber geotechnique's layer of cloth 1 and the second short fiber geotechnique layer of cloth 2 be retained between the first short fiber geotechnique layer of cloth 1, woven geotextile layer 3 and the second short fiber geotechnique layer of cloth 2, strengthened the peel strength between woven geotextile layer 3 and the first short fiber geotechnique layer of cloth 1, the second short fiber geotechnique layer of cloth 2, made the first short fiber geotechnique layer of cloth 1, woven geotextile layer 3 and one of the second short fiber geotechnique layer of cloth 2 formation firmly whole.In main thorn operation, pricker pricker moves from top to bottom, be equivalent to secondary and sting in advance operation, it is close that but the Gap-Ratios between pricker stings in operation the gap between pricker in advance, it is high that punch frequency is wanted, play the effect of compound rear the first short fiber geotechnique layer of cloth 1 of further compacting, woven geotextile layer 3 and the second short fiber geotechnique layer of cloth 2, improved every overall target of the present invention.
Reasonable in design of the present invention, combine the advantage of spinning geotextiles and non-woven geotextile, it had both been had has the height of the geotextiles spun to indulge the features such as transverse tensile strength, high CBR bursting strength, low fracture elongation, has again the features such as the high adhesion force of non-woven geotextile, high drainage concurrently.In addition, due in the fixed operation of acupuncture, by hangnail and pre-thorn operation, make respectively the fiber 4 on first short fiber geotechnique's layer of cloth 1 and the second short fiber geotechnique layer of cloth 2 be retained in the first short fiber geotechnique layer of cloth 1, between woven geotextile layer 3 and the second short fiber geotechnique layer of cloth 2, woven geotextile layer 3 and the first short fiber geotechnique layer of cloth 1 have been strengthened, peel strength between the second short fiber geotechnique layer of cloth 2, woven geotextile layer 3 is firmly fixed between first short fiber geotechnique's layer of cloth 1 and the second short fiber geotechnique layer of cloth 2, thereby make the first short fiber geotechnique layer of cloth 1, one of 2 layers of formation of woven geotextile layer 3 and the second short fiber geotextiles are firmly whole.
The above-mentioned specific embodiment can not be as limiting the scope of the invention, and for those skilled in the art, any alternate modification that embodiment of the present invention is made or conversion all drop in protection scope of the present invention.
The present invention does not describe part in detail, is those skilled in the art of the present technique's known technology.
Claims (3)
1. a composite earthwork cloth, is characterized in that: comprise first short fiber geotechnique's layer of cloth and the second short fiber geotechnique layer of cloth, between first short fiber geotechnique's layer of cloth and the second short fiber geotechnique layer of cloth, by acupuncture mode, be fixed with woven geotextile layer.
2. a kind of composite earthwork cloth according to claim 1, is characterized in that: described first short fiber geotechnique's layer of cloth and the second short fiber geotechnique layer of cloth are acupuncture polypropylene chopped fiber geotextiles or terylene short fiber geotextiles.
3. a kind of composite earthwork cloth according to claim 1, is characterized in that: described woven geotextile layer is polypropylene filament yarn woven geotextile or polyester filament woven geotextile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410374994.3A CN104191741A (en) | 2014-07-31 | 2014-07-31 | Compound geotechnical cloth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410374994.3A CN104191741A (en) | 2014-07-31 | 2014-07-31 | Compound geotechnical cloth |
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| CN104191741A true CN104191741A (en) | 2014-12-10 |
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| CN201410374994.3A Pending CN104191741A (en) | 2014-07-31 | 2014-07-31 | Compound geotechnical cloth |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107160800A (en) * | 2017-05-11 | 2017-09-15 | 平阳盛兴无纺布有限公司 | In-car uses high abrasion non-woven fabrics |
| CN107351472A (en) * | 2017-06-24 | 2017-11-17 | 常州市雪宜物资有限公司 | A kind of preparation method of non-woven geotextile |
| CN108360536A (en) * | 2018-01-30 | 2018-08-03 | 河南工程学院 | A kind of anti-aging plant growing protection slope geotextiles of sandwich structure and preparation method thereof |
| CN108385272A (en) * | 2018-01-30 | 2018-08-10 | 河南工程学院 | A kind of high intensity plant growing protection slope geotextiles of sandwich structure and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0591963A1 (en) * | 1992-10-09 | 1994-04-13 | Johannes Radtke | Filling mat |
| CN2431295Y (en) * | 2000-07-31 | 2001-05-23 | 江苏远大新纺织联合发展有限公司 | Composite geotextile |
| KR20020021257A (en) * | 2000-09-14 | 2002-03-20 | 전한용 | Non-woven fabric geotextile with excellent permeability under high load |
| CN201258490Y (en) * | 2008-09-18 | 2009-06-17 | 哈秋舲 | Synthetic fibre multilayer structure geotextile and ecological engineering bag made thereof |
| CN204136518U (en) * | 2014-07-31 | 2015-02-04 | 山东浩阳新型工程材料股份有限公司 | A kind of composite earthwork cloth |
-
2014
- 2014-07-31 CN CN201410374994.3A patent/CN104191741A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0591963A1 (en) * | 1992-10-09 | 1994-04-13 | Johannes Radtke | Filling mat |
| CN2431295Y (en) * | 2000-07-31 | 2001-05-23 | 江苏远大新纺织联合发展有限公司 | Composite geotextile |
| KR20020021257A (en) * | 2000-09-14 | 2002-03-20 | 전한용 | Non-woven fabric geotextile with excellent permeability under high load |
| CN201258490Y (en) * | 2008-09-18 | 2009-06-17 | 哈秋舲 | Synthetic fibre multilayer structure geotextile and ecological engineering bag made thereof |
| CN204136518U (en) * | 2014-07-31 | 2015-02-04 | 山东浩阳新型工程材料股份有限公司 | A kind of composite earthwork cloth |
Non-Patent Citations (1)
| Title |
|---|
| 芦国超等: "《道路与桥梁工程材料》", 30 September 2013, 北京：北京理工大学出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107160800A (en) * | 2017-05-11 | 2017-09-15 | 平阳盛兴无纺布有限公司 | In-car uses high abrasion non-woven fabrics |
| CN107351472A (en) * | 2017-06-24 | 2017-11-17 | 常州市雪宜物资有限公司 | A kind of preparation method of non-woven geotextile |
| CN107351472B (en) * | 2017-06-24 | 2019-12-17 | 仪征市众兴土工合成材料有限公司 | Preparation method of non-woven geotextile |
| CN108360536A (en) * | 2018-01-30 | 2018-08-03 | 河南工程学院 | A kind of anti-aging plant growing protection slope geotextiles of sandwich structure and preparation method thereof |
| CN108385272A (en) * | 2018-01-30 | 2018-08-10 | 河南工程学院 | A kind of high intensity plant growing protection slope geotextiles of sandwich structure and preparation method thereof |
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Application publication date: 20141210 |
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