CN207659918U - Environmentally friendly anti-filter composite earthwork cloth and its use structure - Google Patents
Environmentally friendly anti-filter composite earthwork cloth and its use structure Download PDFInfo
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- CN207659918U CN207659918U CN201721546854.5U CN201721546854U CN207659918U CN 207659918 U CN207659918 U CN 207659918U CN 201721546854 U CN201721546854 U CN 201721546854U CN 207659918 U CN207659918 U CN 207659918U
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Abstract
The utility model is related to a kind of environmentally friendly anti-filter composite earthwork cloth and its use structure.The purpose of this utility model is to provide one kind quick, easy environmentally friendly anti-filter composite earthwork cloth of construction simple in structure, easy to make and its uses structure, green pollution-free can be reached, have superior absorption microorganism, impurity and harmful substance, the exchange for not influencing normal water body simultaneously, to reach the control purpose of construction quality.The technical solution of the utility model is：A kind of environmental protection 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 on warp knit composite earthwork cloth above and below, the polypropylene geotextile and terylene short fiber needle-punched geotextiles are attached to through adsorbent respectively compiles composite earthwork cloth above and below.The utility model is suitable for the Underwater Engineering such as hydraulic and hydroelectric engineering, river, harbour.
Description
Technical field
The utility model is related to a kind of environmentally friendly anti-filter composite earthwork cloth and its use structure.Suitable for hydraulic and hydroelectric engineering,
The Underwater Engineering such as river, harbour.
Background technology
Geotextiles, also known as geotextile, it is that water penetration geotechnique made of being pierced or woven by needle by synthetic fibers 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, adequately 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 in recent years, during subway, tunnel, river, port engineering are built
Antiseepage is isolated, reinforcement, and extensive utilization has been obtained in the civil engineerings such as 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 when low temperature.
Geotextiles have good permeability simultaneously, can be used as artificial earth fill, enrockment or yard of material and ground separation layer,
The filtering layer of drainage system, closed drain periphery in the filtering layer of the initial stage upstream dam facing of the grey dam of storage or tailing dam, retaining wall backfill
Or it is 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
It oozes behind geomembrane or the drainage blanket of concrete facing lower part, the infiltration of tunnel periphery can be excluded, mitigate what lining cutting was born
It seeps water around external water pressure and each building.
Paces with modernization construction and manufacturing requirements, for laying geotextiles in addition to having above functions,
Also require it that there is environmental protection, high absorption and reverse filter effect, especially in the water inlet of hydroenergy storage station library basin, municipal pollution river
Road is administered in the construction of the Underwater Engineering such as sand matter harbour, and equal effect on environment is made that increasingly higher demands.It is both domestic and external
There are many kinds of geotextiles, composite earthwork cloth, but the conventional geotextiles that can meet requirements above are actually rare.
Invention content
The technical problems to be solved in the utility model is：For above-mentioned there are problem, a kind of simple in structure, making side is provided
Just quick, the easy environmentally friendly anti-filter composite earthwork cloth of construction and its structure is used, green pollution-free can be reached, had excellent
Absorption microorganism, impurity and harmful substance more, while the exchange of normal water body is not influenced, to reach the control mesh of construction quality
's.
Technical solution used by the utility model is：A kind of environmental protection anti-filter composite earthwork cloth, it is characterised in that：Including third
Synthetic fibre geotextiles, warp knit composite earthwork cloth and terylene short fiber needle-punched geotextiles, warp knit composite earthwork cloth are coated with one layer on above and below
It is upper and lower that adsorbent, the polypropylene geotextile and terylene short fiber needle-punched geotextiles are attached to volume composite earthwork cloth through adsorbent respectively
Face.
The adsorbent is reconciled that powdered polyacrylamide is added after gel and polymerize with water mixing by diatom ooze
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 each in the warp thread and latitude of 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 environmental protection anti-filter composite earthwork cloth, it is characterised in that：With the composite earthwork cloth, composite earth
It is equipped with bed course below work cloth, coating is equipped with above composite earthwork cloth；Terylene short fiber needle-punched geotextiles in the composite earthwork cloth
In lower part, the bed course is contacted；
Polypropylene geotextile is in top in composite earthwork cloth, contacts the coating.
The bed course uses sandy soil or clay, thickness to be more than or equal to 15cm.
The coating uses gravel and coarse sand, overburden cover to be more than or equal to 20cm.
The utility model has the beneficial effects that：The composite earthwork cloth of the utility model is for embedded under water, with green ring
It protects, high adsorption and reverse filter effect, the polyacrylamide, bodied ferric sulfate concentrating agents, diatom ooze in adsorbent have high inhale
Attached property, can be by the noxious substance in water in geotextiles, and to achieve the purpose that purifying water body, and the anti-filter of geotextiles makes
Obtaining this effect can more persistently；Meanwhile the buffer action of geotextiles so that storeroom is not lost in geotextiles, does not mix,
Using the good gas permeability of geotextiles and water penetration, flow is made to pass through, and effectively shut off soil particle, fine sand and small building stones etc.,
It prevents the soil body from being destroyed by outer force effect to play fabulous reverse filter effect with the stabilization for the engineering that conserves water and soil, protects bed course
Underlying soil does not weaken or destroys top water body exchanging with the space of soil layer and underground water.
Description of the drawings
Fig. 1 is the vertical view of the present embodiment.
Fig. 2 is the A-A sectional views of Fig. 1.
Specific implementation mode
As shown in Figure 1 and Figure 2, the present embodiment is a kind of environmentally friendly anti-filter composite earthwork cloth, including polypropylene geotextile 2, warp knit
Composite earthwork cloth 1 and terylene short fiber needle-punched geotextiles 3 are coated with one layer of adsorbent 4 on 1 above and below of warp knit composite earthwork cloth, will
Polypropylene geotextile 2 and terylene short fiber needle-punched geotextiles 3 are attached to through adsorbent 4 respectively compiles composite earthwork cloth above and below, then into
Polypropylene geotextile 2, warp knit composite earthwork cloth 1 and terylene short fiber needle-punched geotextiles 3 are stitched by warp, weft after row extruding, rolling
Overall structure is made in conjunction, 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 1600 g/m2, horizontal
To with endwise tensile strength be more than 400kN/m, right angle tearing toughness be more than 300Mpa, use temperature range be -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 each in the warp thread and weft yarn of 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 tearing of the external force of application, yarn can gather around collection along first breach, increase tearing toughness.
Polypropylene geotextile 2 and terylene short fiber needle-punched geotextiles 3 all have good gas permeability and water penetration, keep flow logical
It crosses, 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, to play fabulous anti-filter
Effect, concentrated stress can also effectively be spread, transmit or decompose, prevent the soil body from being destroyed by outer force effect, can be excessively fine
Soil protection.
Adsorbent 4 is mixed reconciliation by diatom ooze as powdered polyacrylamide and polyaluminum sulfate is added after gel 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, most of organic solvents are not dissolved in, the frictional resistance between liquid can be reduced, 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-
Its flocculation efficiency can be improved by closing the cooperation polyacrylamide use of ferric sulfate concentrating agents；Diatom ooze has very high absorption pollutant
Speciality, and it can be chemically reacted by a series of physical of itself, generate self purification.
The anti-filter composite earthwork cloth of the present embodiment Green environmental protection high adsorption when in use, is spread below composite earthwork cloth
If bed course, coating is laid with above composite earthwork cloth；Terylene short fiber needle-punched geotextiles 3 are in lower part and bed course in composite earthwork cloth
It contacts, polypropylene geotextile 2 is in top and is contacted with coating in composite earthwork cloth.Wherein bed course using the small sandy soil of grain size or glues
Soil makees protective layer, and thickness is not preferably less than 15cm, should ensure that terylene short fiber needle-punched geotextiles 3 and layer contacts are more closely knit as possible,
Avoid non-uniform variation；Coating avoids diameter from being more than the sharp block of 20mm using grain size larger gravel and coarse sand
Stone, overburden cover are not preferably less than 20cm, to prevent washing away for water stream, destroy composite earthwork cloth.
After the completion of composite earthwork cloth is laid with, it is closely knit by coating to can be used road roller, all to cause to endanger to composite earthwork cloth
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, especially with rigid material
It, should there are certain strokes when material anchoring；It should make every effort to that weld seam is minimum when being laid with composite earthwork cloth, in the premise for ensureing 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 possible.When discharging water, water and direction should be controlled, avoids that water is excessive or the too fast vertical impact of flow
The effect of geotextiles should avoid damage to coating, weaken geotextiles.
Composite earthwork cloth should be noted that in transportational process and not draw, drag firmly, and sharp object is avoided to stab and contact open fire.
Claims (8)
1. a kind of environmental protection anti-filter composite earthwork cloth, it is characterised in that：Including polypropylene geotextile (2), warp knit composite earthwork cloth (1) and
Terylene short fiber needle-punched geotextiles (3) are coated with one layer of adsorbent (4), the polypropylene fibre on warp knit composite earthwork cloth (1) above and below
Geotextiles (2) and terylene short fiber needle-punched geotextiles (3) are attached to through adsorbent (4) respectively compiles composite earthwork cloth above and below.
2. environmental protection anti-filter composite earthwork cloth according to claim 1, it is characterised in that：The polypropylene geotextile (2), warp knit
Composite earthwork cloth (1) and terylene short fiber needle-punched geotextiles (3) thickness are 1mm, and it is upper and lower to be applied to warp knit composite earthwork cloth (1)
Adsorbent (4) thickness in face is 0.5mm.
3. environmental protection anti-filter composite earthwork cloth according to claim 1, it is characterised in that：The warp knit composite earthwork cloth (1)
Including chopped fiber needle-punched geotextiles, and each in the warp thread and weft yarn of straightened condition, warp thread, weft yarn and chopped fiber needle-punched geotextiles
It is integrated through warp knit lashing wire woollen yarn knitting.
4. environmental protection anti-filter composite earthwork cloth according to claim 1, it is characterised in that：The polypropylene geotextile (2), warp knit
Overall structure is made by warp, weft suture in composite earthwork cloth (1) and terylene short fiber needle-punched geotextiles (3).
5. environmental protection anti-filter composite earthwork cloth according to claim 4, it is characterised in that：The spacing of the warp and weft is equal
Less than or equal to 1cm.
6. a kind of use structure of environmental protection anti-filter composite earthwork cloth, it is characterised in that：With Claims 1 to 5 any one institute
The composite earthwork cloth stated, 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.
7. according to claim 6 use structure, it is characterised in that：The bed course uses sandy soil or clay, thickness to be more than
Equal to 15cm.
8. according to claim 7 use structure, it is characterised in that：The coating uses gravel and coarse sand, coating
Thickness is more than or equal to 20cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721546854.5U CN207659918U (en) | 2017-11-17 | 2017-11-17 | Environmentally friendly anti-filter composite earthwork cloth and its use structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721546854.5U CN207659918U (en) | 2017-11-17 | 2017-11-17 | Environmentally friendly anti-filter composite earthwork cloth and its use structure |
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| CN207659918U true CN207659918U (en) | 2018-07-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938600A (en) * | 2017-11-17 | 2018-04-20 | 中国电建集团华东勘测设计研究院有限公司 | Environmentally protective high adsorption anti-filter composite earthwork cloth and its use structure |
-
2017
- 2017-11-17 CN CN201721546854.5U patent/CN207659918U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938600A (en) * | 2017-11-17 | 2018-04-20 | 中国电建集团华东勘测设计研究院有限公司 | Environmentally protective high adsorption anti-filter composite earthwork cloth and its use structure |
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