CN212827272U

CN212827272U - Filament needle-punched geotextile

Info

Publication number: CN212827272U
Application number: CN202021330679.8U
Authority: CN
Inventors: 邱晓仙; 熊中围; 徐兆林
Original assignee: Guangzhou Tengfei Construction Engineering Materials Co ltd
Current assignee: Guangzhou Tengfei Construction Engineering Materials Co ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2021-03-30
Anticipated expiration: 2030-07-09

Abstract

The utility model relates to a geotextile, in particular to a filament needle-punched geotextile, which comprises a longitudinal reinforcing rib, a first felt layer, a buffer layer, a first geotextile layer, a second felt layer and a transverse reinforcing rib, wherein the longitudinal reinforcing rib and the transverse reinforcing rib form raised grains on the top surface of the first felt layer and the bottom surface of the second felt layer respectively, and the raised grains cooperate with a felt to increase friction force, improve the stability of the geotextile after being laid, prevent deviation and enhance the integral strength of the geotextile; the buffer layer improves the buffer performance, the tensile resistance, the bursting resistance and the tearing resistance, so that the impact of a water body is resisted and the damage in the using process is avoided; the first geotextile layer and the second geotextile layer are two layers of fiber nets with different fineness, so that two-stage reverse filtration is formed, the equivalent aperture is large, clogging is not easy to occur, and the reverse filtration function can be effectively realized; the antibacterial performance can be improved through the antibacterial bamboo fiber and the antibacterial propylene, and the service life is prolonged.

Description

Filament needle-punched geotextile

Technical Field

The utility model relates to a geotechnical cloth, especially a filament acupuncture geotechnical cloth.

Background

The filament needle-punched geotextile is a foundation reinforcing material applied to the fields of railways, highways, hydraulic engineering and the like, is a water-permeable geosynthetic material formed by needling synthetic filament fibers, mainly acts as soft foundation treatment, slope protection and the like, and has good drainage function and decomposition resistance.

However, the existing filament needle-punched geotextile has the following defects: 1. the geotextile is easy to damage when being paved, and is easy to damage when being used outdoors due to erosion of wind, sunshine, acid rain and the like; 2. when in use, the geotextile is easy to slide relative to the surrounding medium due to small friction force; 3. the buffer effect is not good, and the water body is easy to damage due to impact, so that the effects of good protection, filtration, isolation and the like cannot be achieved.

Disclosure of Invention

Not enough to prior art, the utility model provides a filament acupuncture geotechnological cloth that tensile strength is high, antiskid and buffering effect are good.

The technical scheme of the utility model is that: the utility model provides a filament acupuncture geotechnique's cloth, it includes vertical strengthening rib, first felt layer, buffer layer, first geotechnique's cloth layer, second felt layer and horizontal strengthening rib, the bottom surface of vertical strengthening rib is provided with first felt layer, the bottom surface of first felt layer is provided with the buffer layer, the bottom surface of buffer layer is provided with first geotechnique's cloth layer, the bottom surface of first geotechnique's cloth layer is provided with second geotechnique's cloth layer, the bottom surface of second geotechnique's cloth layer is provided with second felt layer, the bottom surface of second felt layer is provided with horizontal strengthening rib.

Furthermore, the longitudinal reinforcing rib is a three-strand rope, the three-strand rope is formed by interweaving three strands of first blended yarns in pairs, the first blended yarns are formed by blending antibacterial bamboo fibers, jute fibers and cotton fibers, the longitudinal reinforcing rib is sewn on the surface of the first felt layer through first covering yarns, yarn cores of the first covering yarns are polypropylene, and leather parts of the first covering yarns are made of antibacterial propylene.

Furthermore, the buffer layer is a multilayer elastic net structure formed by weaving elastic fibers as warps and wefts, and two side edges of the buffer layer are bonded with two side edges of the first geotechnical cloth layer through a polypropylene waterproof adhesive.

Further, first geotechnique's cloth layer and second geotechnique's cloth layer are polypropylene filament fibre needle punched geotechnical cloth, the polypropylene filament thickness of first geotechnique's cloth layer is 9-11D, the polypropylene filament thickness of second geotechnique's cloth layer is 6-8D, the vertical and horizontal tensile strength that polypropylene filament needle punched against straining geotechnical cloth is greater than 15kN/m, the equivalent aperture that polypropylene filament needle punched against straining geotechnical cloth is greater than 0.15 mm.

The manufacturing of the first geotextile layer and the second geotextile layer comprises the following preparation steps:

heating a polypropylene raw material to form a melt, melting and extruding the melt, and forming a filamentous polypropylene main body through a spinning assembly; and spraying a lubricant to the filamentous polypropylene main body to obtain polypropylene filaments, drawing and swinging the polypropylene filaments to form a surface layer fiber net and a bottom layer fiber net, wherein the surface layer fiber net and the bottom layer fiber net are respectively a first geotechnical cloth layer and a second geotechnical cloth layer.

Furthermore, the transverse reinforcing rib is two strands of ropes, the two strands of ropes are formed by weaving two strands of second blended yarns, the second blended yarns are formed by blending antibacterial bamboo fibers, jute fibers and cotton fibers, the longitudinal reinforcing rib and the transverse reinforcing rib are sewn on the bottom surface of the second felt layer through the second covering yarns, the yarn core of the second covering yarns is polypropylene, and the leather part of the second covering yarns is made of antibacterial propylene.

In another preferred embodiment, the transverse reinforcing rib and the longitudinal reinforcing rib are three strands, the three strands are formed by weaving two-by-two cross weaving of three-strand blended yarn, the blended yarn is formed by blending antibacterial bamboo fiber, jute fiber and cotton fiber, the transverse reinforcing rib and the longitudinal reinforcing rib are sewn with the first felt layer, the buffer layer, the first geotextile layer, the second geotextile layer and the second felt layer through core-spun yarn, a yarn core of the core-spun yarn is polypropylene, and a leather part of the core-spun yarn is made of antibacterial propylene.

The utility model has the advantages that: the utility model forms the wave lines on the top surface of the first felt layer and the bottom surface of the second felt layer respectively through the longitudinal reinforcing ribs and the transverse reinforcing ribs, and increases the friction force in cooperation with the felt, improves the stability after the geotextile is laid, prevents the migration, and simultaneously enhances the integral strength of the geotextile; the buffer layer improves the buffer performance, the tensile resistance, the bursting resistance and the tearing resistance, so that the impact of a water body is resisted and the damage in the using process is avoided; the first geotextile layer and the second geotextile layer are two layers of fiber nets with different fineness, so that two-stage reverse filtration is formed, the equivalent aperture is large, clogging is not easy to occur, and the reverse filtration function can be effectively realized; the antibacterial performance can be improved through the antibacterial bamboo fiber and the antibacterial propylene, and the service life is prolonged.

Drawings

Fig. 1 is a schematic structural view of the present invention;

in the figure, 1, longitudinal reinforcing ribs; 2. a first felt layer; 3. a buffer layer; 4. a first geotextile layer; 5. a second geotextile layer; 6. a second felt layer; 7. and transverse reinforcing ribs.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:

example 1

As shown in fig. 1, a filament needle-punched geotextile comprises a longitudinal reinforcing rib 1, a first felt layer 2, a buffer layer 3, a first geotextile layer 4, a second geotextile layer 5, a second felt layer 6 and a transverse reinforcing rib 7, wherein the bottom surface of the longitudinal reinforcing rib 1 is provided with the first felt layer 2, the bottom surface of the first felt layer 2 is provided with the buffer layer 3, the bottom surface of the buffer layer 3 is provided with the first geotextile layer 4, the bottom surface of the first geotextile layer 4 is provided with the second geotextile layer 5, the bottom surface of the second geotextile layer 5 is provided with the second felt layer 6, and the bottom surface of the second felt layer 6 is provided with the transverse reinforcing rib 7. The left and right sides of the first felt layer 2, the buffer layer 3, the first geotextile layer 4, the second geotextile layer 5 and the second felt layer 6 can be connected by hot-pressing compounding or adhesive.

The longitudinal reinforcing rib 1 is a three-strand rope, the three-strand rope is formed by interweaving three strands of first blended yarns in pairs, the first blended yarns are formed by blending antibacterial bamboo fibers, jute fibers and cotton fibers, the longitudinal reinforcing rib 1 is sewn on the surface of the first felt layer 2 through first covering yarns, yarn cores of the first covering yarns are polypropylene, and leather parts of the first covering yarns are made of antibacterial propylene.

Buffer layer 3 is the multilayer elasticity network structure that elastic fiber woven and forms as warp and weft, the both sides limit of buffer layer 3 bonds through the waterproof viscose of polypropylene fibre and the both sides limit of first geotechnological cloth layer 4.

First geotechnological cloth layer 4 and second geotechnological cloth layer 5 are polypropylene filament fibre acupuncture geotechnological cloth, the polypropylene filament thickness of first geotechnological cloth layer 4 is 9-11D, the polypropylene filament thickness of second geotechnological cloth layer 5 is 6-8D, the vertical and horizontal tensile strength that polypropylene filament acupuncture was anti-strained geotechnological cloth is greater than 15kN/m, the equivalent aperture that polypropylene filament acupuncture was anti-strained geotechnological cloth is greater than 0.15 mm.

The manufacturing of the first geotextile layer 4 and the second geotextile layer 5 comprises the following preparation steps:

heating a polypropylene raw material to form a melt, melting and extruding the melt, and forming a filamentous polypropylene main body through a spinning assembly; and spraying a lubricant to the filamentous polypropylene main body to obtain polypropylene filaments, drawing and swinging the polypropylene filaments to form a surface layer fiber net and a bottom layer fiber net, wherein the surface layer fiber net and the bottom layer fiber net are respectively a first geotechnical cloth layer 4 and a second geotechnical cloth layer 5.

The transverse reinforcing rib 7 is two strands of ropes, the two strands of ropes are formed by weaving two strands of second blended yarns, the second blended yarns are formed by blending antibacterial bamboo fibers, jute fibers and cotton fibers, the longitudinal reinforcing rib 1 and the transverse reinforcing rib 7 are sewn on the bottom surface of the second felt layer through second covering yarns, yarn cores of the second covering yarns are polypropylene, and leather parts of the second covering yarns are made of antibacterial propylene.

Example 2

Horizontal strengthening rib 7 and vertical strengthening rib 1 are three-ply rope, and three-ply rope is woven by two liang of crossovers of three-ply blend yarn and forms, the blend yarn is formed by antibiotic bamboo fibre, jute fiber and cotton fiber blending, horizontal strengthening rib 7 and vertical strengthening rib 1 are all made up together through covering yarn and first felt layer 2, buffer layer 3, first geotechnological cloth layer 4, second geotechnological cloth layer 5 and second felt layer 6, the yarn core of covering yarn is polypropylene, the skin material of covering yarn is antibiotic propylene, connects each layer through covering yarn, improves holistic intensity, and other structures are all the same with embodiment 1.

The foregoing embodiments and description have been provided to illustrate the principles and preferred embodiments of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed.

Claims

1. The utility model provides a filament needle-punched geotechnological cloth which characterized in that: it includes vertical strengthening rib (1), first felt layer (2), buffer layer (3), first geotechnique's cloth layer (4), second geotechnique's cloth layer (5), second felt layer (6) and horizontal strengthening rib (7), the bottom surface of vertical strengthening rib (1) is provided with first felt layer (2), the bottom surface of first felt layer (2) is provided with buffer layer (3), the bottom surface of buffer layer (3) is provided with first geotechnique's cloth layer (4), the bottom surface of first geotechnique's cloth layer (4) is provided with second geotechnique's cloth layer (5), the bottom surface of second geotechnique's cloth layer (5) is provided with second felt layer (6), the bottom surface of second felt layer (6) is provided with horizontal strengthening rib (7).

2. The filament needle-punched geotextile of claim 1, wherein: the vertical strengthening rib (1) is three-ply rope, three-ply rope is woven by two liang interweaves of first blended yarn of three strands and forms, first blended yarn is antibiotic bamboo fibre, jute fiber and cotton fiber blending, vertical strengthening rib (1) is made up on the surface of first felt layer (2) through first covering yarn, the yarn core of first covering yarn is polypropylene, the skin material of first covering yarn is antibiotic propylene.

3. The filament needle-punched geotextile of claim 2, wherein: buffer layer (3) are the multilayer elasticity network structure that elastic fiber woven and form as warp and weft, the both sides limit of buffer layer (3) is through the waterproof viscose of polypropylene fibre and the both sides limit bonding of first geotechnological cloth layer (4).

4. The filament needle-punched geotextile of claim 3, wherein: the first geotextile layer (4) and the second geotextile layer (5) are both polypropylene filament fiber needle-punched geotextiles.

5. The filament needle-punched geotextile of claim 4, wherein: the anti-bacterial wool-spun yarn is characterized in that the transverse reinforcing ribs (7) are two strands of ropes, the two strands of ropes are formed by weaving two strands of second blended yarns, the second blended yarns are formed by blending antibacterial bamboo fibers, jute fibers and cotton fibers, the longitudinal reinforcing ribs (1) and the transverse reinforcing ribs (7) are sewn on the bottom surface of the second felt layer through second covering yarns, yarn cores of the second covering yarns are polypropylene, and leather parts of the second covering yarns are made of antibacterial propylene.

6. The filament needle-punched geotextile of claim 1, wherein: horizontal strengthening rib (7) and vertical strengthening rib (1) are three-strand rope, three-strand rope is woven by two liang of crossovers of three strands of blended yarn and is formed, the blended yarn is formed by antibiotic bamboo fibre, jute fiber and cotton fiber blending, horizontal strengthening rib (7) and vertical strengthening rib (1) are all made together through covering yarn and first felt layer (2), buffer layer (3), first geotechnological cloth layer (4), second geotechnological cloth layer (5) and second felt layer (6), the yarn core of covering yarn is polypropylene, the skin material of covering yarn is antibiotic propylene.