Geocomposite using water absorption and drainage yarns as suture lines

Abstract

The utility model provides a geocomposite using water absorption and drainage yarns as sewing threads, which comprises a geotextile material layer, an upper thread and a lower thread, the upper thread and the lower thread are respectively sewn on the upper side and the lower side of the geotextile material layer and are interwoven together, and the upper thread is the water absorption and drainage yarns or contains the water absorption and drainage yarns; the disposable diaper has a wicking function and is not easy to damage.

Description

Technical Field

[0001] The utility model relates to the field of geosynthetics, in particular to a geosynthetics using a water-absorbing and water-discharging yarn as a suture line. Background Art

[0002] Geosynthetics are made of artificial polymers such as plastics, chemical fibers, synthetic rubber, etc., and are made into various types of products. They are placed inside, on the surface, or between various soil bodies to strengthen or protect the soil. Geosynthetics include geotextiles, geogrids, geonets, geobags, geonet mats, geobelts, composite geomembranes, bentonite waterproof blankets, and composite drainage nets. Geosynthetics allow sufficient water to flow through the fabric plane, but prevent soil particles from passing through, thus separating, filtering, and reinforcing the soil.

[0003] Under saturated soil conditions, traditional geosynthetics have high permeability, but for unsaturated soil, due to capillary action, the soil will retain more water in the voids. Geosynthetics act as capillary barriers, which will limit capillary flow through their planes, making the soil water content higher, resulting in reduced soil shear strength and soil volume expansion. Soil volume expansion can cause many problems, such as inability to withstand design loads, uneven surface deformation, etc.

[0004] In the prior art, there is a geotextile with a wicking ring, which is provided with protruding wicking ring segments on both the upper and lower sides of the geotextile to absorb the moisture in the soil on one side of the geotextile and discharge it to the other side. However, the wicking ring segment is interwoven with the geotextile body, and the wicking ring segments on both sides are made of the same wicking yarn. During use, the protruding wicking ring segment is easily torn off, which will affect the wicking effect of the geotextile. Utility Model Content

[0005] The utility model aims to provide a geosynthetic material which has a core absorption function and is not easily damaged and uses a water absorption and drainage yarn as a suture line.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a geosynthetic using a water-absorbing and draining yarn as a suture thread, including a geotechnical material layer, an upper thread and a lower thread, the upper thread and the lower thread are respectively sewn on the upper and lower sides of the geotechnical material layer, and the upper thread and the lower thread are intertwined together, the upper thread is a water-absorbing and draining yarn, or the upper thread contains a water-absorbing and draining yarn.

[0007] It can be seen from the above scheme that by setting the upper and lower lines as suture lines to sew on the upper and lower sides of the geotextile layer, on the one hand, the structural stability of the geosynthetics can be improved, and on the other hand, the upper and lower lines can be made close to the surface of the geotextile layer, which can prevent the upper and lower lines from being easily torn off during use, thereby ensuring their service life; by adopting the drainage yarn as the upper line, during the suturing process, the upper line can pass through the upper and lower sides of the geotextile layer, making it convenient for the upper line to absorb moisture from one side of the geosynthetics to the other side, especially under unsaturated soil conditions, which can effectively improve the permeability of the geosynthetics and enhance its drainage capacity.

[0008] A further solution is that the water-absorbing and water-draining yarn is a monofilament core yarn or a multifilament core yarn, the denier of the water-absorbing and water-draining yarn is 500D to 2500D, the vertical water absorption capacity of the water-absorbing and water-draining yarn is greater than or equal to 50mm, and the vertical water absorption speed of the water-absorbing and water-draining yarn is greater than or equal to 5mm / min within 0 to 10min.

[0009] A further solution is that the cross-sectional shape of the monofilament core line is multi-channel, trilobal, circular or pillow-shaped.

[0010] In a further embodiment, the multifilament core wire is twisted or untwisted.

[0011] A further solution is that the lower thread is a water-absorbing and draining yarn, or the lower thread contains a water-absorbing and draining yarn, and the water-absorbing and draining yarn used in the lower thread is the same as or different from the water-absorbing and draining yarn used in the upper thread.

[0012] A further solution is that the upper wires and / or the lower wires form a predetermined pattern on the surface of the geotextile layer.

[0013] A further solution is that the preset pattern is an array pattern and / or a polygonal grid pattern.

[0014] A further solution is that the geotextile layer is at least one of woven geotextile, non-woven geotextile, geogrid, and organic fiber.

[0015] A further solution is that the geotextile material layer is a single-layer structure.

[0016] A further solution is that the geotechnical material layer is a composite structure of two or more layers, and the materials of the layers in the composite structure are the same, or the materials of the layers in the composite structure are different. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a top view of an embodiment of the utility model.

[0018] Figure 2 It is a cross-sectional schematic diagram of an embodiment of the utility model.

[0019] Figure 3It is a schematic diagram of an embodiment of the utility model in a first application scenario.

[0020] Figure 4 It is a schematic diagram of an embodiment of the utility model in a second application scenario.

[0021] Figure 5 It is a schematic diagram of an embodiment of the utility model in a third application scenario.

[0022] Figure 6 yes Figure 5 Enlarged view of point A in the middle.

[0023] Figure 7 It is a schematic diagram of an embodiment of the utility model in the fourth application scenario.

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0025] See also Figure 1 and Figure 2 The present embodiment provides a geosynthetic material using a water-absorbing and draining yarn as a suture, comprising a geotechnical material layer 1, an upper thread 2 and a lower thread 3, wherein the upper thread 2 and the lower thread 3 are sutured on the geotechnical material layer 1 as sutures, specifically, the upper thread 2 and the lower thread 3 are sutured on the upper and lower sides of the geotechnical material layer 1, respectively, and the upper thread 2 passes downward through the geotechnical material layer 1 and is interwoven with the lower thread 3. The upper thread 2 comprises a straight portion 21 and an interwoven portion 22, wherein the straight portion 21 is close to the upper surface of the geotechnical material layer 1, and the interwoven portion 22 passes through the geotechnical material layer 1 and is connected to the lower thread 3. The lower thread 3 is close to the lower surface of the geotechnical material layer 1 and is interwoven with the interwoven portion 22, which plays a role in fixing the upper thread 2, and preventing the upper thread 2 from being broken due to being pulled by hard objects during use.

[0026] The upper thread 2 is a drainage yarn, or the upper thread 2 contains a drainage yarn. In this embodiment, the drainage yarn is preferably used as the upper thread 2. Since the drainage yarn has a wicking function, when it is sewn on the geotechnical material layer 1, it can wick the moisture on the first side of the geotechnical material layer 1 to the second side of the geotechnical material layer 1, which is beneficial to improve the permeability of the geosynthetics and enhance their drainage capacity.

[0027] The water-absorbing and draining yarn is a monofilament core yarn or a multifilament core yarn, and the denier of the water-absorbing and draining yarn is 500D to 2500D. The vertical height water absorption capacity of the water-absorbing and draining yarn is greater than or equal to 50mm, and the vertical water absorption speed of the water-absorbing and draining yarn is greater than or equal to 5mm / min within 0 to 10min. The cross-sectional shape of the monofilament core yarn is multi-channel, trilobal, circular or pillow-shaped. The multifilament core yarn includes at least two core yarns, and the multifilament core yarn is twisted or untwisted.

[0028] In order to further improve the drainage capacity of the geosynthetics, the lower line 3 is also a drainage yarn, or the lower line 3 contains a drainage yarn. This embodiment preferably uses a drainage yarn as the lower line 3, and the drainage yarn used in the lower line 3 is the same as or different from the drainage yarn used in the upper line 2.

[0029] Since the upper thread 2 and the lower thread 3 are used as suture threads, during the sewing process, the upper thread 2 and / or the lower thread 3 can form a preset pattern on the surface of the geotechnical material layer 1, and the preset pattern is an array pattern and / or a polygonal grid pattern. Preferably, the multi-deformed grid pattern includes a square grid pattern, a rectangular grid pattern, a hexagonal grid pattern, an octagonal grid pattern, etc. Of course, the preset pattern can also be a brand mark, a plant, an animal, a cartoon pattern, etc.

[0030] The geotechnical material layer 1 of this embodiment is at least one of woven geotextile, nonwoven geotextile, geogrid, and organic fiber. The geotechnical material layer 1 of this embodiment can be a single-layer structure or a composite structure of two or more layers. When it is a composite structure, the upper line 2 passes through all geotechnical material layers 1 stacked up and down and is connected to the bottom lower line 3, that is, the upper line 2 and the lower line 3 can fix all geotechnical material layers 1 stacked up and down together. Moreover, the materials of each layer in the composite structure can be the same or different.

[0031] See also Figure 3 The geosynthetics of this embodiment are a single-layer non-woven geotextile 10, which is arranged on a drainage stone 102. Soil 101 containing a certain amount of moisture is arranged on the non-woven geotextile 10. The drainage yarns on the non-woven geotextile 10 can absorb the moisture in the soil 101 and discharge it to the side of the drainage stone 102 to reduce the moisture content of the soil 101.

[0032] Figure 3 The nonwoven geotextile 10 with a planar structure is shown, which is also applicable to the bag-shaped nonwoven geotextile 10, i.e., geocontainer, and will not be described in detail here.

[0033] See also Figure 4 The geosynthetics of this embodiment are erosion-proof mats 20, which can be single-layer or double-layer. The erosion-proof mats 20 can be laid on the slope 201, and the water in the depression 202 of the slope 201 can be absorbed by the water-absorbing and draining yarns on the erosion-proof mats 20. The water flows to the area with less water in the slope 201 under the action of the water-absorbing and draining yarns, so as to evenly distribute the water in the soil 101 of the slope 201, so as to promote the healthy growth of the grass on the surface of the slope 201.

[0034] See also Figure 5 and Figure 6The geosynthetics of this embodiment are woven geotextiles 30 spanning over a cavity 301. The cavity 301 here is a cavity 301 formed between two adjacent rocks in an embankment 302, or a deeper depression formed in the soil 101 of the embankment 302. The woven geotextile 30 spans over the cavity 301, and a fill 303 is arranged above the woven geotextile 30. The absorbing and draining yarns of the woven geotextile 30 can absorb the moisture in the fill 303 and discharge it into the cavity 301, so as to ensure that the fill 303 contains less or no moisture.

[0035] See also Figure 7 The geosynthetics of this embodiment are ecological blankets 40. The geotechnical material layer 1 of the ecological blanket 40 includes a mesh layer 401 and an organic fiber layer 402 stacked up and down. The mesh layer 401 can be a leno mesh tissue or a geogrid. The organic fiber layer 402 is preferably a coconut fiber mat. The upper thread 2 and the lower thread 3 sew the mesh layer 401 and the organic fiber layer 402 together. Vegetation seeds are set in the organic fiber layer 402. After germination, the vegetation seeds will pass upward through the ecological blanket 40. The setting of the ecological blanket 40 can absorb the moisture of its upper layer to its lower layer through the drainage yarn, prevent rainwater from flowing away quickly on the ground, enhance the surface water retention capacity, have the effect of moisturizing and consolidating the soil, and are conducive to the germination and growth of seeds.

[0036] In summary, the utility model sets an upper line and a lower line as suture lines to be sewed on the upper and lower sides of the geotextile layer. On the one hand, it can improve the structural stability of the geosynthetics, and on the other hand, it can make the upper and lower lines close to the surface of the geotextile layer, which can prevent the upper and lower lines from being easily torn off during use, thereby ensuring their service life; by adopting a water-absorbing and drainage yarn as the upper line, during the suturing process, the upper line can pass through the upper and lower sides of the geotextile layer, making it convenient for the upper line to absorb moisture from one side of the geosynthetics to the other side, especially under unsaturated soil conditions, which can effectively improve the permeability of the geosynthetics and enhance their drainage capacity.

[0037] Finally, it should be emphasized that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A geosynthetic material using a water-absorbing and water-discharging yarn as a suture, characterized in that: It includes a geotechnical material layer, an upper thread and a lower thread, wherein the upper thread and the lower thread are sewn to the upper and lower sides of the geotechnical material layer respectively, and the upper thread and the lower thread are interwoven together, and the upper thread is a water-absorbing and draining yarn, or the upper thread contains the water-absorbing and draining yarn.

2. The geosynthetic material according to claim 1, characterized in that: The water-absorbing and draining yarn is a monofilament core yarn or a multifilament core yarn, the denier of the water-absorbing and draining yarn is 500D to 2500D, the vertical water absorption capacity of the water-absorbing and draining yarn is greater than or equal to 50mm, and the vertical water absorption speed of the water-absorbing and draining yarn is greater than or equal to 5mm / min within 0 to 10min.

3. The geosynthetic material according to claim 2, characterized in that: The cross-sectional shape of the monofilament core line is multi-channel, trilobal, circular or pillow-shaped.

4. The geosynthetic material according to claim 2, characterized in that: The multifilament core yarn is twisted or untwisted.

5. The geosynthetic material according to claim 1, characterized in that: The lower thread is a water-absorbing and draining yarn, or the lower thread contains a water-absorbing and draining yarn, and the water-absorbing and draining yarn used in the lower thread is the same as or different from the water-absorbing and draining yarn used in the upper thread.

6. The geosynthetic material according to claim 1, characterized in that: The upper lines and / or the lower lines form a preset pattern on the surface of the geotechnical material layer.

7. The geosynthetic material according to claim 6, characterized in that: The preset pattern is an array pattern and / or a polygonal grid pattern.

8. The geosynthetic material according to any one of claims 1 to 7, characterized in that: The geotextile layer is at least one of woven geotextile, non-woven geotextile, geogrid and organic fiber.

9. The geosynthetic material according to claim 8, characterized in that: The geotechnical material layer is a single-layer structure.

10. The geosynthetic material according to claim 8, characterized in that: The geotechnical material layer is a composite structure of two or more layers, and the materials of the layers in the composite structure are the same, or the materials of the layers in the composite structure are different.

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