Filament geotextile hollow fiber structure

Abstract

The utility model belongs to the technical field of geotextile, especially relates to a long filament geotextile hollow fibre structure. The long filament geotextile hollow fibre structure, including long filament fibre body, its characterized by: long filament fibre body centre is equipped with centre hole, and the centre hole is equipped with a plurality of circle circumference holes. The utility model has the beneficial effects that: hollow fibre has multiple holes in the cross section, and compared with traditional fibre has greater specific surface area, and the permeability is better, and the geotextile made of the hollow fibre has better drainage and air permeability, and the use effect of geotextile is improved.

Description

Technical Field

[0001] This utility model belongs to the field of geotextile technology, and specifically relates to a hollow fiber structure for long filament geotextile. Background Technology

[0002] Geotextiles are a widely used building material in civil engineering, primarily used for soil reinforcement, preventing soil erosion, and controlling groundwater levels. Traditional geotextiles are mainly made from ordinary round fibers, produced through processes such as extrusion, stretching, and crimping, and then manufactured using techniques like cross-laying and needle punching. However, geotextiles made using this traditional method suffer from poor permeability and filtration due to the uniform fiber shape, failing to meet the needs of certain specialized engineering projects. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, this utility model provides a hollow fiber structure for long filament geotextile.

[0004] This utility model is achieved through the following technical solution: A hollow fiber structure for geotextile includes a filament fiber body, characterized in that: the filament fiber body has a central hole at its center, and a plurality of circumferential holes are provided around the central hole.

[0005] The circumferential holes consist of two rings, namely an inner circumferential hole and an outer circumferential hole.

[0006] There are four inner circumferential holes, which are evenly distributed on the outside of the central hole.

[0007] There are four outer circumferential holes, which are evenly distributed outside the inner circumferential holes, and the outer circumferential holes and the inner circumferential holes are arranged alternately.

[0008] The beneficial effects of this invention are: hollow fibers have multiple pores in their cross-section, resulting in a larger specific surface area and better permeability compared to traditional fibers. As a result, geotextiles made from hollow fibers have better drainage and air permeability, thus improving the performance of geotextiles. Attached Figure Description

[0009] The present invention will be further described below with reference to the accompanying drawings.

[0010] Appendix Figure 1 This is a schematic diagram of the structure of this utility model; In the figure, 1 is the filament fiber body, 2 is the central hole, 3 is the circumferential hole, 4 is the inner circumferential hole, and 5 is the outer circumferential hole. Detailed Implementation

[0011] The attached figure illustrates a specific embodiment of this utility model. This embodiment includes a filament fiber body 1, with a central hole 2 at its center and several concentric rings of circumferential holes 3 surrounding the central hole 2. There are two rings of circumferential holes 3: inner circumferential holes 4 and outer circumferential holes 5. There are four inner circumferential holes 4, evenly distributed outside the central hole 2. There are four outer circumferential holes 5, evenly distributed outside the inner circumferential holes 4, with the outer circumferential holes 5 and inner circumferential holes 4 arranged alternately.

[0012] This invention utilizes a hollow fiber structure in a long-filament geotextile. Polyester or polypropylene chips are used as raw materials. The spinneret cross-section is made to match the cross-section of the hollow fiber, thus extruding the hollow fibers. These hollow fibers are then randomly laid into a web and needle-punched to obtain the long-filament geotextile. While the cross-sectional area of ​​the long-filament fiber body 1 is the same as that of fibers used in traditional geotextiles, its cross-section has a central hole 2, inner circumferential holes 4, and outer circumferential holes 5, resulting in a larger specific surface area. This allows the geotextile made from the long-filament fiber body 1 to have better permeability and filtration effects, better drainage and air permeability, and significantly improved performance. The evenly spaced inner circumferential holes 4 and outer circumferential holes 5 ensure the strength of the long-filament fiber body 1 while reducing the difficulty of its manufacturing.

Claims

1. A hollow fiber structure for filament geotextile, comprising a filament fiber body (1), characterized in that: The long filament fiber body (1) has a central hole (2) at its center and several rings of circumferential holes (3) outside the central hole (2). There are two rings of circumferential holes (3), namely inner circumferential holes (4) and outer circumferential holes (5). There are four inner circumferential holes (4) evenly distributed outside the central hole (2) and four outer circumferential holes (5) evenly distributed outside the inner circumferential holes (4). The outer circumferential holes (5) and the inner circumferential holes (4) are arranged alternately.

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