CN107696660A - The membranous type composite geo-membrane of three cloth of one side high temperature resistant impermeabilisation two - Google Patents
The membranous type composite geo-membrane of three cloth of one side high temperature resistant impermeabilisation two Download PDFInfo
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- CN107696660A CN107696660A CN201711144579.9A CN201711144579A CN107696660A CN 107696660 A CN107696660 A CN 107696660A CN 201711144579 A CN201711144579 A CN 201711144579A CN 107696660 A CN107696660 A CN 107696660A
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- cloth
- high temperature
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- geotextiles
- geomembrane
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- 239000004744 fabric Substances 0.000 title claims abstract description 43
- 239000002131 composite material Substances 0.000 title claims abstract description 28
- 239000012528 membrane Substances 0.000 title claims abstract description 26
- 239000004746 geotextile Substances 0.000 claims abstract description 39
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 22
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 22
- 239000000835 fiber Substances 0.000 claims abstract description 15
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 15
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 15
- 229920004933 Terylene® Polymers 0.000 claims abstract description 13
- 239000005020 polyethylene terephthalate Substances 0.000 claims abstract description 13
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000005977 Ethylene Substances 0.000 claims abstract description 12
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 12
- 229920001577 copolymer Polymers 0.000 claims abstract description 9
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000005096 rolling process Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- WSNMPAVSZJSIMT-UHFFFAOYSA-N COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 Chemical compound COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 WSNMPAVSZJSIMT-UHFFFAOYSA-N 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 6
- 238000001467 acupuncture Methods 0.000 claims description 4
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 2
- 239000002689 soil Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 238000010276 construction Methods 0.000 abstract description 6
- 239000002253 acid Substances 0.000 description 5
- 229920001684 low density polyethylene Polymers 0.000 description 5
- 239000004702 low-density polyethylene Substances 0.000 description 5
- 230000032683 aging Effects 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 4
- 230000009172 bursting Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000003712 anti-aging effect Effects 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 208000012260 Accidental injury Diseases 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- NICDRCVJGXLKSF-UHFFFAOYSA-N nitric acid;trihydrochloride Chemical compound Cl.Cl.Cl.O[N+]([O-])=O NICDRCVJGXLKSF-UHFFFAOYSA-N 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/005—Soil-conditioning by mixing with fibrous materials, filaments, open mesh or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0276—Polyester fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0276—Polyester fibres
- B32B2262/0284—Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/552—Fatigue strength
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/582—Tearability
- B32B2307/5825—Tear resistant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/726—Permeability to liquids, absorption
- B32B2307/7265—Non-permeable
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0085—Geotextiles
- E02D2300/009—Geotextiles with multi-layer structure
- E02D2300/0092—Geotextiles with multi-layer structure including a liquid tight layer
- E02D2300/0095—Geotextiles with multi-layer structure including a liquid tight layer including a plastic membrane
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention relates to a kind of membranous type composite geo-membrane of three cloth of one side high temperature resistant impermeabilisation two.It is an object of the invention to provide a kind of membranous type composite geo-membrane of three cloth of one side high temperature resistant impermeabilisation two, damaged with reducing or eliminating outer coolant-temperature gage, external water pressure, air pressure etc. to caused by internal structure, it is ensured that construction safety and quality.The technical scheme is that：A kind of membranous type composite geo-membrane of three cloth of one side high temperature resistant impermeabilisation two, it is characterised in that：It is made up of two layers of geomembrane, two layers of geotextiles and a strata tetrafluoroethene high temperature cloth.The composite geo-membrane has PFY geotextiles, PFY geotextiles one side adheres to high-density polyethylene geomembrane successively and the polytetrafluoroethylene (PTFE) high temperature cloth, the PFY geotextiles another side adhere to ethylene/vinyl acetate copolymer geomembrane and terylene short fiber needle-punched geotextiles successively.The present invention is applied to the membranous type composite geo-membrane of three cloth of one side high temperature resistant impermeabilisation two.
Description
Technical field
The present invention relates to a kind of membranous type composite geo-membrane of three cloth of one side high temperature resistant impermeabilisation two.Suitable for water conservancy and hydropower work
The Underwater Engineering such as journey, river course, harbour.
Background technology
Geomembrane is using plastic sheeting as antiseepage base material, with the non-woven fabric compounded seepage by geo-textile material formed, its antiseepage
Performance depends primarily on the barrier performance of plastic sheeting.At present, the plastic sheeting of domestic and international correlation engineering antiseepage application, mainly has
PE (polyethylene), EVA (ethylene/vinyl acetate copolymer), also having design in tunnel applications, (ethylene vinyl acetate changes using ECB
Property pitch blending geomembrane), HDPE (high-density polyethylene geomembrane), LDPE (low density polyethylene (LDPE) geomembrane) and LLDPE (lines
Property low density polyethylene (LDPE) geomembrane), they are a kind of polymer chemistry flexible materials, and proportion is smaller, and extensibility is stronger, adapt to become
Shape ability is high, and the physical and mechanical property indexs such as tension, tear-proof, bursting are high, has intensity high, extension property is preferable, distorted pattern
The features such as amount is big, acid and alkali-resistance, anticorrosive, ageing-resistant, and barrier performance is good.In recent years on water conservancy and hydropower, municipal administration, building, traffic, ground
Extensive utilization has been obtained in the civil engineerings such as the antiseepage in iron, tunnel, engineering construction, isolation, reinforcement, anti-cracking reinforcement.Due to it
From with the addition of antiaging agent in high polymer material and production technology, therefore can be used in unconventiona temperature environment.It is usually used in dike
The Anti-seeping technology on dam, escape canal, and the antifouling process of spoil area.
But high temperature is encountered sometimes, underground water (such as hot spring), the hyperbar geological conditions (such as hot spring) of high water head, it is opened
Interior water temperature of digging a hole and temperature are more than 110 degrees Celsius, especially in Xinjiang, Tibet and Southwest China Karst Areas, Jie contacted with geomembrane
Matter easily by high temperature, high external water pressure and hyperbar, causes the waterproof action of common geomembrane to fail.
The content of the invention
The technical problem to be solved in the present invention is：For above-mentioned problem, there is provided a kind of one side high temperature resistant impermeabilisation
The membranous type composite geo-membrane of three cloth two, is caused with reducing or eliminating outer coolant-temperature gage, external water pressure, air pressure etc. to internal structure
Damage, it is ensured that construction safety and quality.
The technical solution adopted in the present invention is：A kind of membranous type composite geo-membrane of three cloth of one side high temperature resistant impermeabilisation two, its
It is characterised by：It is made up of two layers of geomembrane, two layers of geotextiles and a strata tetrafluoroethene high temperature cloth.
The composite geo-membrane has PFY geotextiles, and PFY geotextiles one side adheres to high density polyethylene (HDPE) successively
Geomembrane and the polytetrafluoroethylene (PTFE) high temperature cloth, the PFY geotextiles another side adhere to ethylene/vinyl acetate copolymerization successively
Thing geomembrane and terylene short fiber needle-punched geotextiles.
The PFY geotextiles list cloth thickness is 1mm；High-density polyethylene geomembrane and ethylene/vinyl acetate copolymerization
Thing geomembrane monofilm thickness is 0.5mm；The polytetrafluoroethylene (PTFE) high temperature cloth list cloth thickness is 2mm；The terylene short fiber acupuncture
Geotextiles list cloth thickness is 1mm.
The composite geo-membrane is divided into the PFY geotextiles and overall structure I, II；
Wherein overall structure I passes through rolling, hot sticky by the high-density polyethylene geomembrane and polytetrafluoroethylene (PTFE) high temperature cloth
Technique is closed to be made；
Overall structure II is passed through by the ethylene/vinyl acetate copolymer geomembrane and the terylene short fiber needle-punched geotextiles
Rolling, thermal bonding technology are made；
Overall structure I, PFY geotextiles, overall structure II are by extruding, rolling, being thermally bonded and form the composite earth
Work film.
The beneficial effects of the invention are as follows：The present invention by the film of three cloth two (PFY geotextiles, polytetrafluoroethylene (PTFE) high temperature cloth and
Terylene short fiber needle-punched geotextiles, and high-density polyethylene geomembrane and ethylene/vinyl acetate copolymer geomembrane) form, water
Put down to high with the physical and mechanical property indexs such as endwise tensile strength, right angle tearing toughness, temperature in use, bursting, it is high temperature resistant, resistance to
Soda acid, anticorrosive, ageing-resistant, barrier performance is good.The present invention reduces or eliminated high temperature, external water pressure, air pressure etc. internally
Damage caused by portion's structure, to ensure construction safety and quality, improve construction safety, including personnel and equipment safety.
Brief description of the drawings
Fig. 1 is the sectional view of embodiment.
Embodiment
The present embodiment is a kind of membranous type composite geo-membrane of three cloth of one side high temperature resistant impermeabilisation two, by two layers of geomembrane, two layers
Geotextiles and a strata tetrafluoroethene high temperature cloth are formed, wherein two layers of geomembrane is respectively high-density polyethylene geomembrane 2 and second
Alkene/acetate ethylene copolymer geomembrane 3, two layers of geotextiles are respectively PFY geotextiles 1 and terylene short fiber needle-punched geotextiles
4。
As shown in figure 1, the intermediate layer of composite geo-membrane is PFY geotextiles 1 in this example, single cloth thickness is 1mm, choosing
Take high-density polyethylene geomembrane 2 and ethylene/vinyl acetate copolymer geomembrane 3 of the same size with PFY geotextiles 1
The upper and lower surface of PFY geotextiles 1 is respectively attached to, monofilm thickness is 0.5mm.The outside of high-density polyethylene geomembrane 2
Face adheres to and its polytetrafluoroethylene (PTFE) high temperature cloth of the same size, and single cloth thickness is 2mm.Ethylene/vinyl acetate copolymer geomembrane 3
Lateral surface adheres to and its terylene short fiber needle-punched geotextiles 4 of the same size, and single cloth thickness is 1mm.
PFY geotextiles 1 are to be directly prepared into using polyester method through spinning acupuncture consolidation, pass through PFY networking
It is made with the method for consolidation, its fiber alignment is into three-dimensional structure.In addition to good mechanical property, also there is good indulge
Transverse drainage performance and good extension property and the chemical stability such as higher resistance to biology, acid and alkali-resistance, ageing-resistant.With pole
High anti-uv-ray, still holding structure is complete and original physical property up to 230 DEG C, under high temperature for high temperature resistant.
Polytetrafluoroethylene (PTFE) high temperature cloth is used for -196 DEG C of low temperature, between 300 DEG C of high temperature, has against weather, anti-aging.Change cloth
It is continuous under 250 DEG C of high tender feelings to place 200 days, not only intensity will not step-down, and weight is not also reduced；Under 350 DEG C of high temperature
120 hours are placed, weight only reduces 0.6% or so；Cracking will not be produced in the case of -180 DEG C of ultralow temperature, and keeps original
Flexibility.It is resistant to chemical etching, it is resistant to the corrosion of strong acid, highly basic, chloroazotic acid and various organic solvents.Good stability of the dimension (extension
Coefficient be less than 5 ‰), intensity it is high.
Terylene short fiber needle-punched geotextiles 4 are non-woven and industrial cloth one kind.It is to use fibre number as 6-12 denier, it is long
It is raw material to spend for 54-64mm terylene crimped staple.By the shredding of nonwoven production equipment, comb, mixed and disorderly (chopped fiber phase
Mutual weave in), lapping (normalization entanglement set), cloth-like is made in the flow of the production technology such as acupuncture.
The present embodiment is high first by high-density polyethylene geomembrane 2 and polytetrafluoroethylene (PTFE) by the technique such as rolling, being thermally bonded
Overall structure I is made in stupe；Then by the technique such as rolling, being thermally bonded first by the and of ethylene/vinyl acetate copolymer geomembrane 3
Overall structure II is made in terylene short fiber needle-punched geotextiles 4；Finally by overall structure I, PFY geotextiles 1 and overall structure II
By extruding, rolling, the technique such as being thermally bonded and form the membranous type composite geo-membrane of three cloth of one side high temperature resistant impermeabilisation two.
Composite geo-membrane wide cut 3m in this example, length 5m, thickness about 5mm, weight is about 1100g/m2, it is horizontal to longitudinal direction
Tensile strength is more than 800kN/m, right angle tearing toughness is more than 350Mpa, -100 °~+230 ° of temperature in use, the physics such as bursting
Mechanical performance index is high, high temperature resistant, acid and alkali-resistance, anticorrosive, ageing-resistant, and barrier performance is good etc..
Composite geo-membrane not draw in transportation, drag firmly, avoid sharp object from stabbing；Used and buried using palpus during construction
Enter formula (gas storage spray shield formula), cladding thickness is not preferably less than 20cm, ensures the height contacted with the high temperature cloth of composite geo-membrane one side
Warm, high hydraulic pressure, hyperbar rock stratum (medium)；When antiseepage or gas storage, in the range of rock wedge angle need to remove, keep rock stratum put down
It is whole.
Composite geo-membrane should not La get Tai it is tight, certain stroke should be left；It is minimum that weld seam should be made every effort to when laying geomembrane,
On the premise of quality is ensured, practice every conceivable frugality raw material, while is also easily guaranteed that quality；The overlap joint of the seam of composite geo-membrane
Width is typically no less than 10cm, and in turning and lopsided location, seam length shortens as far as possible.After the completion of geomembrane laying, it should try one's best
Sprayed and protected using C20 concrete, in order to avoid accidental injury is caused to composite geo-membrane.
Claims (4)
- A kind of 1. membranous type composite geo-membrane of three cloth of one side high temperature resistant impermeabilisation two, it is characterised in that：By two layers of geomembrane, two layers of soil Work cloth and a strata tetrafluoroethene high temperature cloth (4) are formed.
- 2. the membranous type composite geo-membrane of three cloth of one side high temperature resistant impermeabilisation according to claim 1 two, it is characterised in that：This is multiple Closing geomembrane has PFY geotextiles (1), and PFY geotextiles (1) one side adheres to high-density polyethylene geomembrane successively (2) adhere to ethylene/vinyl acetate successively with the polytetrafluoroethylene (PTFE) high temperature cloth (4), PFY geotextiles (1) another side and be total to Polymers geomembrane (3) and terylene short fiber needle-punched geotextiles (4).
- 3. the membranous type composite geo-membrane of three cloth of one side high temperature resistant impermeabilisation according to claim 2 two, it is characterised in that：It is described The single cloth thickness of PFY geotextiles (1) is 1mm；High-density polyethylene geomembrane (2) and ethylene/vinyl acetate copolymer geotechnique Film (3) monofilm thickness is 0.5mm；The single cloth thickness of polytetrafluoroethylene (PTFE) high temperature cloth (4) is 2mm；The terylene short fiber acupuncture The single cloth thickness of geotextiles (4) is 1mm.
- 4. the membranous type composite geo-membrane of three cloth of one side high temperature resistant impermeabilisation two according to Claims 2 or 3, it is characterised in that：The composite geo-membrane is divided into the PFY geotextiles (1) and overall structure I, II；Wherein overall structure I passes through rolling, heat by the high-density polyethylene geomembrane (2) and polytetrafluoroethylene (PTFE) high temperature cloth (4) Adhesion technique is made；Overall structure II is logical by the ethylene/vinyl acetate copolymer geomembrane (3) and the terylene short fiber needle-punched geotextiles (4) Cross rolling, thermal bonding technology is made；Overall structure I, PFY geotextiles (1), overall structure II are by extruding, rolling, being thermally bonded and form the composite earth Work film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711144579.9A CN107696660A (en) | 2017-11-17 | 2017-11-17 | The membranous type composite geo-membrane of three cloth of one side high temperature resistant impermeabilisation two |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711144579.9A CN107696660A (en) | 2017-11-17 | 2017-11-17 | The membranous type composite geo-membrane of three cloth of one side high temperature resistant impermeabilisation two |
Publications (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108532313A (en) * | 2018-06-12 | 2018-09-14 | 江苏远大新纺织联合发展有限公司 | Surface self-lubricating type composite geotextile and preparation method thereof |
| CN116905570A (en) * | 2023-07-25 | 2023-10-20 | 江苏科技大学 | Intelligent telescopic bubble pad geomembrane with positioning device |
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| CN202782001U (en) * | 2012-06-14 | 2013-03-13 | 中国水电顾问集团华东勘测设计研究院 | Roughened surface compound warp-knitted geomembrane with built-in steel fibers |
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| CN108532313A (en) * | 2018-06-12 | 2018-09-14 | 江苏远大新纺织联合发展有限公司 | Surface self-lubricating type composite geotextile and preparation method thereof |
| CN116905570A (en) * | 2023-07-25 | 2023-10-20 | 江苏科技大学 | Intelligent telescopic bubble pad geomembrane with positioning device |
| CN116905570B (en) * | 2023-07-25 | 2024-03-26 | 江苏科技大学 | Intelligent telescopic bubble pad geomembrane with positioning device |
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