阅读说明：本技术 一种单向透水土工膜 (One-way water-permeable geomembrane ) 是由 冯立群 艾尼瓦·艾合买提 徐亚峰 阿布力米提·吾布力 韩志强 罗忠 范楷慨 李泽文 于 2021-09-03 设计创作，主要内容包括：本发明公开了一种单向透水土工膜,包括土工膜主体,所述主体上均布有若干透水孔,所述透水孔包括阔口部和细孔部两部分,所述阔口部的截面形状为倒八字形,且阔口部上较宽的一端远离细孔部；所述细孔部为圆形通孔结构；所述主体的厚度为1-5mm,所述阔口部的深度为主体的厚度的1/3—2/3,所述细孔部的深度为主体的厚度的1/3—1/2。本发明实用性和功能性强,可广泛应用于土木工程汇总的富水边坡的防护部件技术领域。(The invention discloses a one-way permeable geomembrane, which comprises a geomembrane main body, wherein a plurality of permeable holes are uniformly distributed on the main body, each permeable hole comprises a wide opening part and a thin hole part, the cross section of the wide opening part is in an inverted splayed shape, and the wider end of the wide opening part is far away from the thin hole part; the fine hole part is of a circular through hole structure; the thickness of the main body is 1-5mm, the depth of the wide opening part is 1/3-2/3 of the thickness of the main body, and the depth of the pore part is 1/3-1/2 of the thickness of the main body. The invention has strong practicability and functionality, and can be widely applied to the technical field of protective components of water-rich slopes summarized in civil engineering.)

1. The one-way permeable geomembrane comprises a geomembrane main body and is characterized in that a plurality of permeable holes are uniformly distributed on the main body, each permeable hole comprises a wide opening part and a thin hole part, the cross section of the wide opening part is inverted splayed, and the wider end of the wide opening part is far away from the thin hole part; the fine hole part is of a circular through hole structure; the thickness of the main body is 1-5mm, the depth of the wide opening part is 1/3-2/3 of the thickness of the main body, and the depth of the pore part is 1/3-1/2 of the thickness of the main body.

2. A unidirectional water permeable geomembrane according to claim 1, wherein a hydrophobic layer is applied to one side of said main body adjacent to said pore portion, and a water permeable layer is applied to one side of said main body adjacent to said wide mouth portion.

3. The geomembrane according to claim 2, wherein the hydrophobic layer is made of hydrophobic fiber material, and the water permeable layer is made of water permeable geotextile material.

4. A unidirectional water permeable geomembrane according to claim 3, wherein the hydrophobic layer is made of hydrophobic fiber cloth and is compositely fixed on the main body, and the water permeable layer is made of water permeable geotextile and is compositely fixed on the main body.

5. The geomembrane according to any one of claims 1 to 4, wherein said main body is a semi-rigid plastic film, said main body has a thickness of 2mm, said wide mouth portion has an outer diameter of 3mm, and said fine hole portion has an outer diameter of 0.2 mm.

Technical Field

The invention relates to the technical field of protective components of water-rich slopes in civil engineering summary, in particular to a one-way permeable geomembrane.

Background

In civil engineering construction, water-rich land conditions are often encountered, snow falls in winter in very cold areas in the north of China, surface water is formed after snow melts in spring, a large amount of rainwater is formed in southern areas throughout the year, and slope waterproof treatment for road construction and diking under the soil conditions is very important. The soil body is hard when dry, once rainwater or snow water comes, the soil body will permeate a large amount of water, and the soil body on the side slope will become soft and even collapse. At present, engineering generally adopts clay soil filling, concrete framework manufacturing and the like for protection, and then grass planting and greening are carried out, the measures are expensive and slow in construction speed, and the measures are often ineffective due to large amount of scouring when heavy rain or large amount of snow water is melted; if the existing geomembrane is adopted for protection, the inside and the outside of the soil body are completely isolated, grass planting and greening cannot be realized, and once water enters the inside of the soil body, the water cannot be removed at all, so that the soil body of the side slope is finally damaged, and unnecessary failure is caused to the engineering.

Therefore, a geomembrane capable of overcoming the above-mentioned drawbacks has yet to be proposed.

Disclosure of Invention

Aiming at the problems, the invention provides a one-way permeable geomembrane which is formed by uniformly arranging capillary holes on a semi-hard plastic film, wherein one side of the hole is an inverted splayed wide opening, and the other side of the hole is the capillary hole.

The technical scheme provided by the invention is as follows:

a one-way permeable geomembrane comprises a geomembrane main body, wherein a plurality of permeable holes are uniformly distributed on the main body, each permeable hole comprises a wide opening part and a thin hole part, the cross section of the wide opening part is in an inverted splayed shape, and the wider end of the wide opening part is far away from the thin hole part; the fine hole part is of a circular through hole structure; the thickness of the main body is 1-5mm, the depth of the wide opening part is 1/3-2/3 of the thickness of the main body, and the depth of the pore part is 1/3-1/2 of the thickness of the main body.

Furthermore, a water repellent layer is laid on one side, close to the pore part, of the main body, and a water permeable layer is laid on one side, close to the wide opening part, of the main body.

Further, the hydrophobic layer is made of hydrophobic fiber materials, and the water permeable layer is made of water permeable geotextile materials.

Furthermore, the hydrophobic layer is made of hydrophobic fiber cloth and is fixedly connected to the main body in a compounding manner, and the permeable layer is made of permeable geotextile and is fixedly connected to the main body in a compounding manner.

Further, the main part adopts semi-hard plastic film, main part thickness is 2mm, the external diameter of wide mouth portion is 3mm, the external diameter of micropore portion is 0.2 mm.

Compared with the prior art, the invention has the advantages that:

the holes are uniformly distributed in the main body and comprise wide opening parts and fine hole parts, so that the purpose of one-way drainage is achieved, the function is strong, and the use is convenient.

Drawings

FIG. 1 is a cross-sectional view of an embodiment of the present invention;

FIG. 2 is a schematic view of water permeation in the present invention.

Detailed Description

The present invention is described in further detail below with reference to figures 1 and 2.

A one-way permeable geomembrane comprises a geomembrane main body 1, wherein a plurality of permeable holes are uniformly distributed on the main body 1, each permeable hole comprises a wide opening part 2 and a fine hole part 3, the cross section of the wide opening part 2 is inverted splayed, and the wider end of the wide opening part 2 is far away from the fine hole part 3; the fine hole part 3 is of a circular through hole structure; the thickness of the main body 1 is 1-5mm, the depth of the wide mouth part 2 is 1/3-2/3 of the thickness of the main body 1, and the depth of the fine hole part 3 is 1/3-1/2 of the thickness of the main body 1.

In the specific implementation process, the method comprises the following working processes: due to the surface tension characteristic of water, different curvature radiuses are formed in the wide opening part 2 and the fine hole part 3 respectively, the large hole forms a large curvature radius, the fine hole forms a small curvature radius, a certain pressure difference is caused, water is automatically absorbed into the fine hole from the wide opening hole, the capillary phenomenon is favorable for one-way water permeable drainage, the water inside a soil body can be guaranteed to be smoothly drained, and the water outside the soil body can be guaranteed to difficultly enter the soil body.

A hydrophobic layer is laid on one side of the main body 1 close to the pore part 3, and a permeable layer is laid on one side of the main body 1 close to the wide mouth part 2.

The hydrophobic layer is made of hydrophobic fiber materials, and the water permeable layer is made of water permeable geotextile materials.

The hydrophobic layer is made of hydrophobic fiber cloth and is compositely and fixedly connected to the main body 1, and the permeable layer is made of permeable geotextile and is compositely and fixedly connected to the main body 1.

In order to ensure that the one-way drainage has better effect and is not easy to be damaged by the outside, the geotextile made of hydrophobic fibers can be compounded on one side of the pore part 3 of the one-way permeable geomembrane main body 1, and the permeable geotextile is compounded on one side of the wide opening part 2, so that the external water is difficult to approach the pore geomembrane, and the internal water can smoothly reach the position of the pore, thereby better playing the application efficiency of the invention.

In the process of realizing water permeation, the principle is as follows: because the geomembrane has the water permeability, the surface of the permeable hole can be soaked completely to water, under the action of surface tension, different curvature radiuses are formed in wide mouth portion 2 and pore portion 3, wherein: the large holes form a first 4 large curvature radius and the small holes form a second 5 small curvature radius, so that a certain pressure difference is formed, water is automatically absorbed into the capillary holes from the wide holes to form water drops 6, the capillary phenomenon is favorable for one-way water permeable drainage, the water which is infiltrated into the soil body from other parts of external rainwater or winter snow melt water can be smoothly drained, the water which is formed by the external rainwater or the winter snow melt water can not easily enter the soil body, the stability of the soil body side slope is ensured, and the method has immeasurable value on success and permanent use of engineering.

The main body 1 adopts a semi-rigid plastic film.

In order to improve the performance of the device in the using process, a hydrophilic agent can be added into the main body 1 and uniformly distributed in the main body.

The present application is further illustrated by the following specific examples.

A one-way permeable geomembrane comprises a geomembrane main body 1, wherein a plurality of permeable holes are uniformly distributed on the main body 1, each permeable hole comprises a wide opening part 2 and a fine hole part 3, the cross section of the wide opening part 2 is inverted splayed, and the wider end of the wide opening part 2 is far away from the fine hole part 3; the fine hole part 3 is of a circular through hole structure; the thickness of the main body 1 is 2mm, the depth of the wide mouth part 2 is 2/3 of the thickness of the main body, and the maximum outer diameter is 3 mm; the depth of the pore part 3 was 1/3 mm of the thickness of the main body, and the diameter of the pore was 0.2 mm.

A hydrophobic layer is laid on one side of the main body 1 close to the pore part 3, and a permeable layer is laid on one side of the main body 1 close to the wide mouth part 2.

The hydrophobic layer is made of hydrophobic fiber materials, and the water permeable layer is made of water permeable geotextile materials.

The hydrophobic layer is made of hydrophobic fiber cloth and is compositely and fixedly connected to the main body 1, and the permeable layer is made of permeable geotextile and is compositely and fixedly connected to the main body.

The main body 1 adopts a semi-rigid plastic film.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.