CN107938600A - Environmentally protective high adsorption anti-filter composite earthwork cloth and its use structure - Google Patents

Environmentally protective high adsorption anti-filter composite earthwork cloth and its use structure Download PDF

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Publication number
CN107938600A
CN107938600A CN201711145474.5A CN201711145474A CN107938600A CN 107938600 A CN107938600 A CN 107938600A CN 201711145474 A CN201711145474 A CN 201711145474A CN 107938600 A CN107938600 A CN 107938600A
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CN
China
Prior art keywords
composite earthwork
earthwork cloth
geotextiles
environmentally protective
high adsorption
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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.)
Pending
Application number
CN201711145474.5A
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Chinese (zh)
Inventor
彭鹏
单治钢
章奇锋
李华
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PowerChina Huadong Engineering Corp Ltd
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PowerChina Huadong Engineering Corp Ltd
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Priority to CN201711145474.5A priority Critical patent/CN107938600A/en
Publication of CN107938600A publication Critical patent/CN107938600A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B3/00Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/12Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
    • E02B3/122Flexible prefabricated covering elements, e.g. mats, strips
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/005Soil-conditioning by mixing with fibrous materials, filaments, open mesh or the like

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Agronomy & Crop Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Revetment (AREA)

Abstract

The present invention relates to a kind of environmentally protective high adsorption anti-filter absorption geotextiles and its use structure.The object of the present invention is to provide a kind of quick, easy environmentally protective high adsorption anti-filter absorption geotextiles of construction simple in structure, easy to make and its use structure, green pollution-free can be reached, possess superior absorption microorganism, impurity and harmful substance, the exchange of normal water body is not influenced at the same time, to reach the control purpose of construction quality.The technical scheme is that:A kind of environmentally protective high adsorption anti-filter composite earthwork cloth, it is characterised in that:Including polypropylene geotextile, warp knit composite earthwork cloth and terylene short fiber needle-punched geotextiles, one layer of adsorbent is coated with warp knit composite earthwork cloth above and below, polypropylene geotextile and the terylene short fiber needle-punched geotextiles are attached to through adsorbent compile composite earthwork cloth above and below respectively.The present invention is suitable for the Underwater Engineering such as hydraulic and hydroelectric engineering, river, harbour.

Description

Environmentally protective high adsorption anti-filter composite earthwork cloth and its use structure
Technical field
The present invention relates to a kind of environmentally protective high adsorption anti-filter absorption geotextiles and its use structure.Suitable for water conservancy water The Underwater Engineering such as electrical engineering, river, harbour.
Background technology
Geotextiles, also known as geotextile, it is that the water penetration geotechnique formed by synthetic fibers by acupuncture or braiding synthesizes Material, can be combined with geomembrane as seepage by geo-textile material.Geotextiles are divided into Woven geofabric and non-woven geotextile.Geotechnique Cloth strength is high, due to the use of plastic optical fibre, sufficiently strength and elongation can be kept under dry and wet state, in different acid-base values Soil and water in can be muchly corrosion-resistant, have gap between fiber, there is good permeability performance, to microorganism, damage by worms not Undermined, easy for construction, material is light, soft, therefore transports, is laid with conveniently.
Geotextiles are in water conservancy and hydropower, municipal administration, building, traffic, subway, tunnel, river, port engineering construction in recent years Extensive utilization has been obtained in the civil engineerings such as antiseepage, isolation, reinforcement, anti-cracking reinforcement.It can make the reinforcement in retaining wall backfill, or For the panel of anchored retaining wall, the crack on road is repaired, prevents reflection cracking in a pavement, increases rubble side slope and reinforced earth Stability, the freeze injury to prevent erosion with soil body during low temperature.
Geotextiles have good permeability at the same time, can as the separation layer of artificial earth fill, enrockment or yard of material and ground, The grey dam of storage or tailing dam initial stage upstream dam facing filtering layer, the filtering layer of drainage system, closed drain periphery in retaining wall backfill It is or anti-in well, the filtering layer of relief well or the pipe that baroclines, earth dam or earth embankment in the filtering layer on rubble seugh periphery, hydraulic engineering The drainage blanket of behind geomembrane or concrete facing lower part is oozed, it can exclude the infiltration of tunnel periphery, mitigate what lining cutting was born Seep water around external water pressure and each building.
Paces and manufacturing requirements with modernization construction, for laying geotextiles in addition to possessing function above, Also require it that there is environmental protection, high absorption and reverse filter effect, water inlet, municipal pollution river especially in hydroenergy storage station storehouse basin During the Underwater Engineering such as road improvement and sand matter harbour is built, equal effect on environment is made that increasingly higher demands.It is both domestic and external Geotextiles, composite earthwork are furnished with many kinds, but can meet that the conventional geotextiles of requirements above are actually rare.
The content of the invention
The technical problem to be solved in the present invention is:There are problem for above-mentioned, there is provided a kind of simple in structure, easy to make fast Prompt, the easy environmentally protective high adsorption anti-filter of construction adsorbs geotextiles and its using structure, can reach environmentally protective no dirt Dye, possesses superior absorption microorganism, impurity and harmful substance, while does not influence the exchange of normal water body, to reach construction matter The control purpose of amount.
The technical solution adopted in the present invention is:A kind of environmentally protective high adsorption anti-filter composite earthwork cloth, its feature exist In:Including polypropylene geotextile, warp knit composite earthwork cloth and terylene short fiber needle-punched geotextiles, on warp knit composite earthwork cloth above and below One layer of adsorbent is coated with, polypropylene geotextile and the terylene short fiber needle-punched geotextiles are attached to volume composite earth through adsorbent respectively Work cloth above and below.
The adsorbent is reconciled to add powdered polyacrylamide after gelatinous and polymerizeing by diatom ooze with water mixing Ferric sulfate concentrating agents is made.
The polyacrylamide is 8mg/m3, bodied ferric sulfate concentrating agents is 24mg/m3
The polypropylene geotextile, warp knit composite earthwork cloth and terylene short fiber needle-punched geotextiles thickness are 1mm, be applied to through The adsorbent thickness for compiling composite earthwork cloth above and below is 0.5mm.
The warp knit composite earthwork cloth includes chopped fiber needle-punched geotextiles, and warp thread and latitude each in straightened condition Yarn, warp thread, weft yarn and chopped fiber needle-punched geotextiles are integrated through warp knit lashing wire woollen yarn knitting.
The polypropylene geotextile, warp knit composite earthwork cloth and terylene short fiber needle-punched geotextiles are made up of warp, weft suture Overall structure.
The spacing of the warp and weft, which is respectively less than, is equal to 1cm.
A kind of use structure of environmentally protective high adsorption anti-filter composite earthwork cloth, it is characterised in that:With described compound Geotextiles, composite earthwork cloth lower section are equipped with bed course, coating are equipped with above composite earthwork cloth;Terylene is short in the composite earthwork cloth Fine needle-punched geotextiles are in lower part, contact the bed course;
Polypropylene geotextile is in top in composite earthwork cloth, contacts the coating.
The bed course is more than or equal to 15cm using particle diameter small sandy soil or clay, thickness.
The coating is more than or equal to 20cm using particle diameter larger gravel and coarse sand, overburden cover.
The beneficial effects of the invention are as follows:The composite earthwork cloth of the present invention is used to bury under water, has environmentally protective, high absorption Property and reverse filter effect, polyacrylamide, bodied ferric sulfate concentrating agents, diatom ooze in its adsorbent there is high adsorption, can will Noxious substance in water is in geotextiles, and to achieve the purpose that purifying water body, and the anti-filter of geotextiles causes this work With can be more lasting;Meanwhile the buffer action of geotextiles make it that storeroom is not lost in geotextiles, does not mix, and utilizes geotechnique Cloth good gas permeability and water penetration, make current pass through and the soil particle that effectively shuts off, fine sand and small building stones etc., to keep water The stabilization of geotechnological journey, so as to play fabulous reverse filter effect, prevents the soil body from being acted on and destroyed by external force, protection bed course lower part soil Earth, does not weaken or destroys top water body exchanging with the space of soil layer and underground water.
Brief description of the drawings
Fig. 1 is the top view of the present embodiment.
Fig. 2 is the A-A sectional views of Fig. 1.
Embodiment
As shown in Figure 1 and Figure 2, the present embodiment is a kind of environmentally protective high adsorption anti-filter composite earthwork cloth, including polypropylene fibre soil Work cloth 2, warp knit composite earthwork cloth 1 and terylene short fiber needle-punched geotextiles 3, warp knit composite earthwork cloth are coated with one layer on 1 above and below Adsorbent 4, polypropylene geotextile 2 and terylene short fiber needle-punched geotextiles 3 are attached on volume composite earthwork cloth through adsorbent 4 respectively, In the following, by warp, weft by polypropylene geotextile 2, warp knit composite earthwork cloth 1 and terylene short fiber acupuncture after being extruded, being rolled again Overall structure is made in the suture of geotextiles 3, and the spacing of warp and weft is no more than 1cm.
The present embodiment composite earthwork cloth width is 3m, and length 15m, thickness is about 4mm, and weight is about 1600g/m2, it is horizontal To with endwise tensile strength be more than 400kN/m, right angle tearing toughness be more than 300Mpa, use temperature range for -65 °~+ The features such as 65 °, the physical and mechanical property indexs such as bursting are high, have acid and alkali-resistance, anticorrosive, ageing-resistant, and anti-filter performance is good.Wherein third Synthetic fibre geotextiles 2, warp knit composite earthwork cloth 1 and 3 thickness of terylene short fiber needle-punched geotextiles are 1mm, are applied to warp knit composite earthwork 4 thickness of adsorbent of 1 above and below of cloth is 0.5mm.
Warp knit composite earthwork cloth 1 includes chopped fiber needle-punched geotextiles, and warp thread and weft yarn each in straightened condition, warp Yarn, weft yarn and chopped fiber needle-punched geotextiles are integrated through warp knit lashing wire woollen yarn knitting.Warp knit composite earthwork cloth can more uniform synchronization comprehensively External force and distributed stress are born, when the external force tear of application, yarn can gather around collection along first breach, increase tearing toughness.
Polypropylene geotextile 2 and terylene short fiber needle-punched geotextiles 3 are respectively provided with good gas permeability and water penetration, lead to current Cross, and the sand grains that effectively shut off, fine sand, small building stones etc., with the stabilization for the engineering that conserves water and soil, so as to play fabulous anti-filter Effect, concentrated stress can also effectively be spread, transmit or decompose, and prevent the soil body from being acted on and destroyed by external force, can be excessively fine Soil protection.
Adsorbent 4 is mixed reconciliation by diatom ooze to add powdered polyacrylamide and polyaluminum sulfate after gelatinous with water Iron concentrating agents is made, and wherein polyacrylamide is 8mg/m3, bodied ferric sulfate concentrating agents is 24mg/m3.Polyacrylamide (PAM) For high molecular weight water soluble polymer, insoluble in most of organic solvents, the frictional resistance between liquid can be reduced, is had good Flocculation and adhesive effect, suspended matter, fine particle and the inorganic pollution in water can be handled, make water body become it is limpid;It is poly- Closing ferric sulfate concentrating agents coordinates polyacrylamide use to improve its flocculation efficiency;Diatom ooze has very high absorption pollutant Speciality, and it can be chemically reacted by a series of physical of itself, produce self purification.
The present embodiment Green environmental protection high adsorption anti-filter composite earthwork cloth when in use, is laid with below composite earthwork cloth Bed course, composite earthwork cloth top are laid with coating;Terylene short fiber needle-punched geotextiles 3 are in lower part and are connect with bed course in composite earthwork cloth Touch, polypropylene geotextile 2 is in top and is contacted with coating in composite earthwork cloth.Wherein bed course is using particle diameter small sandy soil or clay Make protective layer, thickness is not preferably less than 15cm, should try one's best and ensure that terylene short fiber needle-punched geotextiles 3 are more closely knit with layer contacts, keep away Exempt from non-uniform change;Coating is using particle diameter larger gravel and coarse sand, the sharp block stone for avoiding diameter from being more than 20mm, Overburden cover is not preferably less than 20cm, to prevent washing away for water stream, destroys composite earthwork cloth.
After the completion of composite earthwork cloth is laid with, it can use road roller that coating is closely knit, it is all that composite earthwork cloth can be caused to endanger Harmful object, should not be placed on composite earthwork cloth or carry and walk on composite earthwork cloth, in order to avoid composite earthwork cloth is caused Accidental injury.Composite earthwork cloth should not La get Tai it is tight, both ends embedment covering layer segment it is corrugated preferably, particularly with rigid material During material anchoring, certain stroke should be left;It should make every effort to that weld seam is minimum when being laid with composite earthwork cloth, ensure the premise of quality Under, practice every conceivable frugality raw material.The lap width of the seam of composite earthwork cloth is typically no less than 30cm, in turning and abnormal field Section, seam length shorten as far as possible.When discharging water, water and direction should be controlled, avoids that water is excessive or the too fast vertical impact of current Geotextiles, should avoid damage to coating, the effect of weakening geotextiles.
Composite earthwork cloth should be noted that in transportational process and not draw, drag firmly, avoid sharp object from stabbing and contact naked light.

Claims (10)

  1. A kind of 1. environmentally protective high adsorption anti-filter composite earthwork cloth, it is characterised in that:It is multiple including polypropylene geotextile (2), warp knit Geotextiles (1) and terylene short fiber needle-punched geotextiles (3) are closed, one layer of adsorbent is coated with warp knit composite earthwork cloth (1) above and below (4), the polypropylene geotextile (2) and terylene short fiber needle-punched geotextiles (3) are attached to volume composite earthwork cloth through adsorbent (4) respectively Above and below.
  2. 2. environmentally protective high adsorption anti-filter composite earthwork cloth according to claim 1, it is characterised in that:The adsorbent (4) reconciliation is mixed with water by diatom ooze to add powdered polyacrylamide and bodied ferric sulfate concentrating agents system after gelatinous Into.
  3. 3. environmentally protective high adsorption anti-filter composite earthwork cloth according to claim 2, it is characterised in that:The polypropylene Acid amides is 8mg/m3, bodied ferric sulfate concentrating agents is 24mg/m3
  4. 4. the environmentally protective high adsorption anti-filter composite earthwork cloth according to claim 1 or 2 or 3, it is characterised in that:It is described Polypropylene geotextile (2), warp knit composite earthwork cloth (1) and terylene short fiber needle-punched geotextiles (3) thickness are 1mm, are applied to warp knit Adsorbent (4) thickness of composite earthwork cloth (1) above and below is 0.5mm.
  5. 5. the environmentally protective high adsorption anti-filter composite earthwork cloth according to claim 1 or 2 or 3, it is characterised in that:It is described Warp knit composite earthwork cloth (1) includes chopped fiber needle-punched geotextiles, and warp thread and weft yarn each in straightened condition, warp thread, latitude Yarn and chopped fiber needle-punched geotextiles are integrated through warp knit lashing wire woollen yarn knitting.
  6. 6. the environmentally protective high adsorption anti-filter composite earthwork cloth according to claim 1 or 2 or 3, it is characterised in that:It is described Entirety is made by warp, weft suture in polypropylene geotextile (2), warp knit composite earthwork cloth (1) and terylene short fiber needle-punched geotextiles (3) Structure.
  7. 7. environmentally protective high adsorption anti-filter composite earthwork cloth according to claim 6, it is characterised in that:The warp and The spacing of weft, which is respectively less than, is equal to 1cm.
  8. A kind of 8. use structure of environmentally protective high adsorption anti-filter composite earthwork cloth, it is characterised in that:With claim 1~ Composite earthwork cloth described in 7 any one, composite earthwork cloth lower section are equipped with bed course, coating are equipped with above composite earthwork cloth;
    Terylene short fiber needle-punched geotextiles (3) are in lower part in the composite earthwork cloth, contact the bed course;Third in composite earthwork cloth Synthetic fibre geotextiles (2) are in top, contact the coating.
  9. 9. according to claim 8 use structure, it is characterised in that:The bed course uses the small sandy soil or clay of particle diameter, Thickness is more than or equal to 15cm.
  10. 10. according to claim 8 use structure, it is characterised in that:The coating using the larger gravel of particle diameter and Coarse sand, overburden cover are more than or equal to 20cm.
CN201711145474.5A 2017-11-17 2017-11-17 Environmentally protective high adsorption anti-filter composite earthwork cloth and its use structure Pending CN107938600A (en)

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CN201711145474.5A CN107938600A (en) 2017-11-17 2017-11-17 Environmentally protective high adsorption anti-filter composite earthwork cloth and its use structure

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Application Number Priority Date Filing Date Title
CN201711145474.5A CN107938600A (en) 2017-11-17 2017-11-17 Environmentally protective high adsorption anti-filter composite earthwork cloth and its use structure

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230033869A1 (en) * 2016-06-14 2023-02-02 MKB Company, LLC Silt Fence Configured for Capturing Pollutants and Fabric Forming the Same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201136317Y (en) * 2007-11-19 2008-10-22 高领 Multifunctional thermal insulation covering material
CN103568409A (en) * 2012-07-21 2014-02-12 德州东方土工材料股份有限公司 Geofabric used for ecological restoration
CN204291915U (en) * 2014-10-22 2015-04-29 湖北天蓝地绿生态科技股份有限公司 Urban ecological environment repair system
CN105040669A (en) * 2015-05-14 2015-11-11 孟强 Sewing reinforced compound geomembrane
CN207659918U (en) * 2017-11-17 2018-07-27 中国电建集团华东勘测设计研究院有限公司 Environmentally friendly anti-filter composite earthwork cloth and its use structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201136317Y (en) * 2007-11-19 2008-10-22 高领 Multifunctional thermal insulation covering material
CN103568409A (en) * 2012-07-21 2014-02-12 德州东方土工材料股份有限公司 Geofabric used for ecological restoration
CN204291915U (en) * 2014-10-22 2015-04-29 湖北天蓝地绿生态科技股份有限公司 Urban ecological environment repair system
CN105040669A (en) * 2015-05-14 2015-11-11 孟强 Sewing reinforced compound geomembrane
CN207659918U (en) * 2017-11-17 2018-07-27 中国电建集团华东勘测设计研究院有限公司 Environmentally friendly anti-filter composite earthwork cloth and its use structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230033869A1 (en) * 2016-06-14 2023-02-02 MKB Company, LLC Silt Fence Configured for Capturing Pollutants and Fabric Forming the Same
US12000098B2 (en) * 2016-06-14 2024-06-04 MKB Company, LLC Silt fence configured for capturing pollutants and fabric forming the same

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Application publication date: 20180420

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