A new type of composite geotextile

Abstract

The present invention relates to the field of geotechnical material processing, and particularly to a novel composite geotechnical material, which comprises a first grid strip layer, a first cladding layer, a second cladding layer and a second grid strip layer arranged from inside to outside. The first grid strip layer is composed of a plurality of longitudinally arranged grid strips, and the second grid strip layer is composed of a plurality of transversely arranged grid strips. The longitudinal grid strips and the transverse grid strips are fixedly connected by welding at the vertical and horizontal intersections to form a plurality of nodes. The beneficial effects of the present invention are as follows: The novel composite geotechnical material of the present invention has good soil fixation effect, is integrally welded and formed, has a firm structure, strong anti-deformation ability and tensile strength, and moreover, has low production cost and is convenient to use.

Description

Technical Field

[0001] The present invention relates to the field of geotechnical materials, and particularly to a new type of composite geotechnical material. Background Art

[0002] With the progress of technology and the development of society, the ecological environment has been increasingly emphasized by people. There are a large number of barren mountains, deserts, abandoned mines, etc. in our country that need to be greened to improve our ecological environment. However, soil fixation has become the key to the success or failure of desert control or greening, especially in places with poor soil sources such as high slopes, mines, construction sites or deserts.

[0003] The current slope protection technology is to lay special anti-erosion materials on slopes such as river channels, lake shores, and reservoirs. The main material is geotextile. After laying on slopes such as revetments, grass seeds are planted. The strong grass roots of the plants, the geotextile, and the slope are closely combined into a whole to control hydraulic erosion, soil loss, green the environment, control barren slopes, etc. At the same time, the growth of plants can achieve better landscape effects and ecological restoration functions.

[0004] However, the existing common geotechnical materials and other structures are single, with low tensile strength and anti-deformation ability, poor stability and easy deformation, and poor anti-seepage effect, and cannot play a good role in soil fixation, blocking, filtering, etc. In particular, although geotechnical materials have developed rapidly in slope protection technology, the soil fixation effect is not good, the construction is relatively complex, and the cost is relatively high. Therefore, there is an urgent need to develop a new type of composite geotechnical material that is convenient for construction, has a good soil fixation effect, a firm structure, and a low cost. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a new type of composite geotechnical material. This new type of composite geotechnical material has a good soil fixation effect, is integrally welded and formed, has a firm structure, strong anti-deformation ability and tensile strength, and a low production cost.

[0006] To achieve the above object, the present invention provides the following technical solution: A new type of composite geotechnical material, comprising a first grid strip layer, a first covering layer, a second covering layer, and a second grid strip layer arranged from the inside outwards. The first grid strip layer is composed of a plurality of longitudinally arranged grid strips, the second grid strip layer is composed of a plurality of transversely arranged grid strips, and the longitudinal and transverse intersections of the longitudinally arranged grid strips and the transversely arranged grid strips are welded and fixedly connected to form a plurality of nodes.

[0007] Preferably, a plurality of cavities are formed between the first covering layer and the second covering layer, and the cavities protrude towards the outside of the first grid strip layer and the second grid strip layer.

[0008] Preferably, each grid strip of the first grid strip layer is parallel to each other, and each grid strip of the second grid strip layer is parallel to each other.

[0009] Preferably, the grid strips of the first grid strip layer and the second grid strip layer are plastic grid strips.

[0010] Preferably, the grid strips of the first grid strip layer and the second grid strip layer are plastic grid strips, and parallel steel wires are arranged in each strip; the steel wires extend along the length direction of the grid strip. That is, the grid strips of the first grid strip layer and the second grid strip layer are both steel-plastic grid strips.

[0011] Preferably, the grid strips of the first grid strip layer and the second grid strip layer are plastic grid strips, and each strip contains glass fibers.

[0012] Preferably, the first cladding layer and the second cladding layer are textile geotextiles, woven geotextiles, non-woven geotextiles, composite geotextiles, geomembranes or nylon fabrics.

[0013] Preferably, the geomembrane is a high-density polyethylene film.

[0014] Preferably, the surfaces of the grid strips of the first grid strip layer and the second grid strip layer are provided with indentations.

[0015] Compared with the prior art, the present invention provides a novel composite geotechnical material, which has the following beneficial effects:

[0016] 1. When the present invention is used, after opening an opening in the second cladding layer, nutrient soil and grass seeds are poured into a plurality of cavities by equipment, and the plurality of cavities formed by the first cladding layer and the second cladding layer can well fix the nutrient soil, prevent the loss of the nutrient soil, and play a role in soil fixation and vegetation growth.

[0017] 2. The present invention is integrally welded and formed by grid strips, the first cladding layer and the second cladding layer, with a firm structure, which increases the anti-deformation ability and tensile strength of the geotechnical material, and has low production cost and high production efficiency.

[0018] 3. The present invention is simple to operate, convenient for construction, has a wide range of applications, and is suitable for use in greening projects in deserts, highway slopes, tunnel exit slopes, and mountain areas of mines; it improves the convenience of use.

[0019] 4. The geotechnical material of the present invention has good filtering and waterproof functions, good anti-seepage effect, and long service life.

[0020] 5. The longitudinal grid and the transverse grid of the present invention are provided with indentations on the surface, which increases the friction force and improves the anti-slip ability of the geotechnical material. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the front view of the present invention;

[0022] Figure 2Left view of the present invention;

[0023] Reference signs in the figure:

[0024] 1. First grid strip layer; 2. Second grid strip layer; 3. Node; 4. First cladding; 5. Second cladding; 6. Cavity. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other.

[0027] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0029] Embodiment 1

[0030] As Figures 1 to 2As shown in the figure, a new type of composite geotextile material includes a first grid strip layer 1, a first cladding layer 4, a second cladding layer 5, and a second grid strip layer 2 arranged from the inside outwards. The first grid strip layer 1 is composed of several longitudinally arranged grid strips, and the second grid strip layer 2 is composed of several transversely arranged grid strips. The longitudinal and transverse intersections of the longitudinally arranged grid strips and the transversely arranged grid strips are welded and fixedly connected to form several nodes 3.

[0031] It is integrally welded and formed by the grid strips and the first cladding layer 4 and the second cladding layer, with a firm structure, increasing the anti-deformation ability and tensile strength of the geotextile material, and having low production cost and high production efficiency.

[0032] Example 2

[0033] As Figures 1 to 2 shown in the figure, a new type of composite geotextile material, on the basis of Example 1, is different from Example 1 in that several cavities 6 are formed between the first cladding layer 4 and the second cladding layer 5, and the cavities 6 protrude towards the outside of the first grid strip layer 1 and the second grid strip layer 2.

[0034] When in use, after opening on the second cladding layer 5, a device is used to pour nutrient soil and grass seeds into several cavities. The several cavities formed by the two-layer geotextile can well fix the nutrient soil, prevent the loss of nutrient soil, and play a role in soil fixation and vegetation growth.

[0035] Example 3

[0036] As Figures 1 to 2 shown in the figure, a new type of composite geotextile material, on the basis of Example 1, is different from Example 1 in that the grid strips of the first grid strip layer 1 are parallel to each other, and the grid strips of the second grid strip layer 2 are parallel to each other.

[0037] Example 4

[0038] As Figures 1 to 2 shown in the figure, a new type of composite geotextile material, on the basis of Example 1, is different from Example 1 in that the grid strips of the first grid strip layer 1 and the second grid strip layer 2 are plastic grid strips.

[0039] Example 5

[0040] As Figures 1 to 2 shown in the figure, a new type of composite geotextile material, on the basis of Example 1, is different from Example 1 in that the grid strips of the first grid strip layer and the second grid strip layer are plastic grid strips, and parallel steel wires (not shown in the figure) are arranged in each strip, and the steel wires extend along the length direction of the grid strips.

[0041] The arrangement of the steel wires increases the tensile strength of the grid strips and improves the service life.

[0042] Example 6

[0043] As shown Figures 1 to 2 in the figure, a new type of composite geotextile material, on the basis of Embodiment 1, is different from Embodiment 1 in that the grid strips of the first grid strip layer 1 and the second grid strip layer 2 are plastic grid strips, and each strip contains glass fibers (not shown in the figure).

[0044] The glass fibers are provided to increase the tensile strength of the grid strips and improve the service life.

[0045] Embodiment 7

[0046] As shown Figures 1 to 2 in the figure, a new type of composite geotextile material, on the basis of Embodiment 1, is different from Embodiment 1 in that both the first cladding layer 4 and the second cladding layer 5 are non-woven fabrics, that is, non-woven geotextiles.

[0047] It has good filtering and waterproof functions, good anti-seepage effect and long service life.

[0048] Embodiment 8

[0049] As shown Figures 1 to 2 in the figure, a new type of composite geotextile material, on the basis of Embodiment 1, is different from Embodiment 1 in that the first cladding layer 4 and the second cladding layer 5 are geomembranes.

[0050] The geomembrane is a high-density polyethylene film.

[0051] It has good filtering and waterproof functions, good anti-seepage effect and long service life.

[0052] Embodiment 9

[0053] As shown Figures 1 to 2 in the figure, a new type of composite geotextile material, on the basis of Embodiment 1, is different from Embodiment 1 in that the surfaces of the grid strips of the first grid strip layer 1 and the second grid strip layer 2 are provided with notches (not shown in the figure).

[0054] The surfaces of the grid strips are provided with notches, which increases the friction and improves the anti-slip ability of the geotextile.

[0055] In addition to non-woven fabrics and geomembranes, the first cladding layer and the second cladding layer can also be replaced with: woven geotextiles, machine-woven geotextiles, composite geotextiles or nylon fabrics. The geomembrane can be a common geomembrane, or a reinforced geomembrane and a composite geomembrane.

[0056] The first cladding layer and the second cladding layer can be made of the same material or different materials. For example, the first cladding layer is a woven geotextile and the second cladding layer is a non-woven fabric.

[0057] Usage method: After laying the novel composite geotechnical material of the present invention on the site to be constructed, cut an opening in the first cladding layer 4 or the second cladding layer 5 with a tool, and then use a grouting machine or manually pour a mixture of nutrient soil and grass seeds into the cavity 6. The several cavities 6 formed by the first cladding layer 4 and the second cladding layer 5 can well fix the mixture of nutrient soil and grass seeds, prevent the loss of nutrient soil, and play a role in soil fixation and vegetation growth.

[0058] The components used in the present invention are all common standard components or components known to those skilled in the art, and their structures and principles are well known to those skilled in the art.

[0059] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0060] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of composite geotechnical material, characterized in that: It includes a first grid strip layer, a first cladding layer, a second cladding layer and a second grid strip layer arranged from inside to outside. The first grid strip layer is composed of a number of longitudinally arranged grid strips, and the second grid strip layer is composed of a number of transversely arranged grid strips. Welding and fixing connections are formed at the intersections of the longitudinally arranged grid strips and the transversely arranged grid strips to form a number of nodes; A number of cavities are formed between the first cladding layer and the second cladding layer, and the cavities protrude outward from the first grid strip layer and the second grid strip layer; The grid strips of the first grid strip layer are parallel to each other, and the grid strips of the second grid strip layer are parallel to each other; Scratches are provided on the surfaces of the grid strips of the first grid strip layer and the second grid strip layer.

2. A novel composite geotextile according to claim 1, characterized in that: The grid strips of the first grid strip layer and the second grid strip layer are plastic grid strips.

3. A novel composite geotextile according to claim 1, characterized in that: The grid strips of the first grid strip layer and the second grid strip layer are plastic grid strips, and parallel steel wires are arranged in each strip.

4. A novel composite geotechnical material according to claim 1, characterized in that: The grid strips of the first grid strip layer and the second grid strip layer are plastic grid strips, and each strip contains glass fibers.

5. A novel composite geotextile according to claim 1, characterized in that: The first cladding layer and the second cladding layer are textile geotextiles, woven geotextiles, non-woven geotextiles, composite geotextiles, geomembranes or nylon fabrics.

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