CN211994523U - Seepage-proofing composite geotextile - Google Patents

Seepage-proofing composite geotextile Download PDF

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Publication number
CN211994523U
CN211994523U CN202020595912.9U CN202020595912U CN211994523U CN 211994523 U CN211994523 U CN 211994523U CN 202020595912 U CN202020595912 U CN 202020595912U CN 211994523 U CN211994523 U CN 211994523U
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China
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geotextile
layer
fiber layer
composite
polyethylene terephthalate
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Inventor
于沭
温彦锋
郭坚强
王小明
苏安双
马金龙
王国志
邵宇
贺佩君
高武刚
郝建伟
刘鹏义
岳凡
周嘉伟
张强
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China Institute of Water Resources and Hydropower Research
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China Institute of Water Resources and Hydropower Research
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Abstract

The utility model discloses a compound geotechnological cloth of prevention of seepage belongs to geotechnological material technical field for the water conservancy project. It includes: the composite fiber layer and the two first geotextile layers are sewn into a whole through polyester fiber threads; the composite fiber layer comprises a polyethylene glycol terephthalate fiber layer, a second geotextile layer and a polypropylene fiber layer which are sequentially arranged, and the polyethylene glycol terephthalate fiber layer, the second geotextile layer and the polypropylene fiber layer are fixed through sewing threads. The anti-seepage composite geotextile has the characteristics of good adaptive deformation capability, high puncture strength, high cylinder strength, high tensile strength, high tear strength, high-speed water flow scouring resistance and the like, thereby improving the soil conservation performance of the geotextile material; and the water permeability coefficient is small, so that the water-based paint has the advantages of excellent permeability resistance and water resistance, and also has the advantages of excellent impact resistance and acid and alkali resistance.

Description

Seepage-proofing composite geotextile
Technical Field
The utility model relates to an earthwork material technical field for the water conservancy project, concretely relates to compound geotechnological cloth of prevention of seepage.
Background
The geotechnical material has the advantages of light weight, good flexibility, high strength, strong integrity and corrosion resistance, has the functions of reverse filtration, drainage, isolation, reinforcement, seepage prevention and the like in engineering, can improve the engineering quality, and is widely applied to the engineering fields of water conservancy, water transportation, highways, buildings and the like. The prior geotechnical anti-seepage material has the problems of low tensile strength, weak puncture resistance, poor high-speed water flow scouring resistance, poor soil retention, poor anti-seepage capability, short service life and the like, and cannot meet the high requirement of anti-seepage geotextile in various projects.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a compound geotechnological cloth of prevention of seepage to solve current geotechnological prevention of seepage material tensile strength low, anti puncture strength low, anti high-speed rivers erode the poor, protect the poor and poor problem of seepage control ability of soil property.
The utility model provides an above-mentioned technical problem's technical scheme as follows:
an impermeable composite geotextile comprising: the composite fiber layer and the two first geotextile layers are sewn into a whole through polyester fiber threads;
the composite fiber layer comprises a polyethylene glycol terephthalate fiber layer, a second geotextile layer and a polypropylene fiber layer which are sequentially arranged, and the polyethylene glycol terephthalate fiber layer, the second geotextile layer and the polypropylene fiber layer are fixed through sewing threads.
Further, in a preferred embodiment of the present invention, the inner side of the first geotextile layer is provided with a plurality of inner hooks, and the polyester fiber thread passes through the inner hooks respectively to sew the two first geotextile layers and the composite fiber layer.
Further, in a preferred embodiment of the present invention, the polyester fiber thread is sewn in a zigzag symmetrical and continuous manner.
Further, in the preferred embodiment of the present invention, a geogrid layer is further disposed between the polyethylene terephthalate fiber layer and the second geotextile layer, and between the polypropylene fiber layer and the second geotextile layer, and the geogrid layer is a mesh structure formed by intersecting a plurality of flexible grid rods.
Further, in the preferred embodiment of the present invention, the intersections of the grid rods are fixed and connected by fixing nails.
Further, in the preferred embodiment of the present invention, the polyethylene terephthalate fiber layer is a woven structure composed of a plurality of polyethylene terephthalate strips, and the polypropylene fiber layer is a woven structure composed of a plurality of polypropylene fiber strips.
Furthermore, in a preferred embodiment of the present invention, the width of the polyethylene terephthalate strip used in the polyethylene terephthalate fiber layer is 1mm to 5 mm; the width of the polypropylene strip adopted by the polypropylene fiber layer is also 1mm-5 mm.
Further, in a preferred embodiment of the present invention, the thickness of the polyethylene terephthalate fiber layer and the polypropylene fiber layer is 0.2-10 mm.
Further, in a preferred embodiment of the present invention, the first geotextile layer and the second geotextile layer each comprise a polyester geotextile or a polyamide geotextile.
The utility model discloses following beneficial effect has:
1. the utility model discloses a compound geotechnological cloth of prevention of seepage, its adaptation deformability is good, anti puncture strength is high and anti cylinder intensity is high, and characteristics such as its tensile strength, tear strength and anti high-speed rivers erode ability height to shock-resistant, acid and alkali-resistance, prevention of seepage permeability and waterproof nature are good.
2. The utility model discloses an adopt among the composite fiber layer that adaptation deformability is good, anti puncture strength is high and anti cylinder intensity high polyethylene terephthalate fibre layer, can fine improvement geotechnological cloth the tensile strength, tear strength and anti high velocity flow erode ability to improve geotechnological material and protect soil property ability.
3. The utility model discloses a polypropylene fiber layer that adopts in the composite fiber layer's intensity is high, shock-resistant, acid and alkali-resistance, waterproof nature are good, can compound geotechnological cloth have good water proof permeation prevention performance to the life of extension geotechnological cloth.
4. The utility model discloses a compound geotechnological cloth of prevention of seepage adopts the grid pole of flexible material, can guarantee geotechnological composite fabric's pliability, can also improve its intensity and tensile strength.
5. The utility model discloses a polyester fiber line is sewed up composite fiber layer and two first geotechnological fabric layers, can the three laminate firmly durable, can guarantee its life to polyester fiber line can strengthen the whole tensile strength of compound geotechnological cloth, tear strength and the resistance to deformation ability.
Drawings
Fig. 1 is an exploded view of the construction of the impermeable composite geotextile of the present invention;
fig. 2 is a schematic view of a side structure of the impermeable composite geotextile of the present invention.
In the figure: 100-a composite fiber layer; 110-a layer of polyethylene terephthalate fibers; 120-a second geotextile layer; 130-polypropylene fiber layer; 140-a geogrid layer; 141-grid rods; 142-a staple; 200-a first geotextile layer; 210-inner hook; 300-polyester fiber yarn; 400-suture thread.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
Examples
Referring to fig. 1, the anti-seepage composite geotextile of the present invention comprises: the composite fiber layer 100 and the first geotextile layer 200, the first geotextile layer 200 is respectively arranged at the upper layer and the lower layer of the composite fiber layer 100, and the composite fiber layer 100 and the two first geotextile layers 200 are sewed into a whole through the polyester fiber thread 300. The first geotextile layer 200 includes a polyester geotextile or a polyamide geotextile and a geotextileHas a gram weight of 100m2/g-400m2(ii) in terms of/g. The inboard of first geotextile layer 200 is provided with a plurality of internal hooks 210, and polyester fiber line 300 passes internal hook 210 respectively and sews up two first geotextile layers 200 and composite fiber layer 100, and in this embodiment, polyester fiber line 300 is Z style of calligraphy symmetry continuity and sews up, and probably the three laminates firmly durable, can guarantee its life to polyester fiber line 300 can strengthen the whole tensile strength, tear strength and the resistance to deformation ability of composite geotextile.
Referring to fig. 1, the composite fiber layer 100 includes a polyethylene terephthalate fiber layer 110, a second geotextile layer 120, and a polypropylene fiber layer 130, which are sequentially disposed, and the polyethylene terephthalate fiber layer 110, the second geotextile layer 120, and the polypropylene fiber layer 130 are fixed by a suture 400. The polyethylene terephthalate fiber layer 110 is a woven structure formed by a plurality of polyethylene terephthalate strips, the width of the polyethylene terephthalate strips adopted by the polyethylene terephthalate fiber layer 110 is 1mm-5mm, the polyethylene terephthalate fiber layer 110 has high impact strength, and the tensile strength and the water flow scouring resistance of the geotextile can be well improved, so that the soil conservation performance of the geotextile material is improved. The polypropylene fiber layer 130 is a woven structure formed by a plurality of polypropylene fiber strips, the width of the polypropylene strips adopted by the polypropylene fiber layer 130 is also 1mm-5mm, and the adopted polypropylene fiber layer 130 is high in strength, impact-resistant, acid-base-resistant and waterproof, and can be well used. The composite geotextile has good water-proof and anti-permeability performance, and the service life of the geotextile is prolonged. The polyethylene terephthalate fiber layer 110 and the polypropylene fiber layer 130 with the woven structure have the advantages that the stress points can be dispersed and the stress is more uniform when water and soil particles impact, so that the impact resistance effect on the water and the soil particles is more obvious. In this embodiment, the thickness of the polyethylene terephthalate fiber layer 110 and the polypropylene fiber layer 130 is 0.2-10 mm. The polyethylene terephthalate fiber layer 110 and the polypropylene fiber layer 130 have a grammage of 100m2/g-400m2(g) in the case of selecting the polyethylene terephthalate fiber layer 110 and the polypropylene fiber layer 130 having the same thickness, the larger the grammage, the more the polyThe greater the density of the woven strips of ethylene terephthalate, the better the impact resistance. The second geotextile layer 120 comprises a polyester geotextile or a polyamide geotextile and the geotextile has a gram weight of 100m2/g-400m2/g。
Referring to fig. 1 and 2, a geogrid layer 140 is further disposed between the polyethylene terephthalate fiber layer 110 and the second geotextile layer 120, and between the polypropylene fiber layer 130 and the second geotextile layer 120, respectively, and the geogrid layer 140 with a mesh structure has a better tensile strength, so that the tensile strength and strength of the entire geotextile can be improved. The geogrid layer 140 is a net structure formed by a plurality of flexible grid rods 141 which are intersected, and the intersections of the grid rods 141 are fixed and connected through fixing nails 142. The fixing nails 142 fix the crossed grid bars 141, and the tensile strength of the geogrid layer 140 can be improved by the interaction of the grid bars 141 with the fixing nails 142 as supporting points.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (9)

1. An impermeable composite geotextile, comprising: the composite fiber layer (100) and the first geotextile layers (200) respectively arranged at the upper layer and the lower layer of the composite fiber layer (100) are sewed into a whole through polyester fiber threads (300);
the composite fiber layer (100) comprises a polyethylene terephthalate fiber layer (110), a second geotextile layer (120) and a polypropylene fiber layer (130) which are sequentially arranged, wherein the polyethylene terephthalate fiber layer (110), the second geotextile layer (120) and the polypropylene fiber layer (130) are fixed through a suture (400).
2. The impermeable composite geotextile of claim 1, wherein the first geotextile layer (200) is provided at the inner side thereof with a plurality of inner hooks (210), and the polyester fiber thread (300) is passed through the inner hooks (210) to sew the first geotextile layer (200) and the composite geotextile layer (100), respectively.
3. The impermeable composite geotextile of claim 2, wherein the polyester fiber thread (300) is sewn in a zigzag symmetric continuity.
4. The impermeable composite geotextile of claim 1, wherein a geogrid layer (140) is further disposed between the polyethylene terephthalate fiber layer (110) and the second geotextile layer (120), and between the polypropylene fiber layer (130) and the second geotextile layer (120), respectively, and the geogrid layer (140) is a mesh structure formed by crossing a plurality of flexible geogrid rods (141).
5. The impermeable composite geotextile of claim 4, wherein the intersections of the grid rods (141) are fixed and connected by fixing nails (142).
6. The impermeable composite geotextile of any of claims 1-5, wherein the polyethylene terephthalate fiber layer (110) is a woven structure of a plurality of polyethylene terephthalate strips, and the polypropylene fiber layer (130) is a woven structure of a plurality of polypropylene fiber strips.
7. The impermeable composite geotextile of claim 6, wherein the polyethylene terephthalate fiber layer (110) employs polyethylene terephthalate strips having a width of 1mm to 5 mm; the width of the polypropylene strip adopted by the polypropylene fiber layer (130) is also 1mm-5 mm.
8. The impermeable composite geotextile of claim 6, wherein the polyethylene terephthalate fiber layer (110) and the polypropylene fiber layer (130) have a thickness of 0.2 to 10 mm.
9. The impermeable composite geotextile of claim 6, wherein the first geotextile layer (200) and the second geotextile layer (120) each comprise a polyester geotextile or a polyamide geotextile.
CN202020595912.9U 2020-04-20 2020-04-20 Seepage-proofing composite geotextile Active CN211994523U (en)

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Application Number Priority Date Filing Date Title
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CN211994523U true CN211994523U (en) 2020-11-24

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114211852A (en) * 2021-12-20 2022-03-22 徐州瑞雪包装有限公司 Method for manufacturing anti-seepage composite plastic woven cloth
CN114703823A (en) * 2022-03-01 2022-07-05 山东土工侠信息科技有限公司 Cement blanket and manufacturing method and application thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114211852A (en) * 2021-12-20 2022-03-22 徐州瑞雪包装有限公司 Method for manufacturing anti-seepage composite plastic woven cloth
CN114211852B (en) * 2021-12-20 2023-08-22 徐州瑞雪包装有限公司 Manufacturing method of impermeable composite plastic woven cloth
CN114703823A (en) * 2022-03-01 2022-07-05 山东土工侠信息科技有限公司 Cement blanket and manufacturing method and application thereof

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