At present, many engineering foundations (Foundations) can not be separated from geotextile as the foundation, so why is geotextile necessary and important in engineering application?

Geotextile has excellent water conducting function, which can discharge the excess liquid in the soil structure; use geotextile to strengthen the tensile strength and deformation resistance of the land, strengthen the stability of the building structure, so as to improve the quality of the land; prevent the land from being damaged by the external force

Earth shows you the necessity of engineering application through the construction examples. In some water conservancy projects, the non-woven geotextile is not adopted, which causes the abnormality of dyke collapse, crevasse and piping. Without geotextile, the river water erodes the sand dyke surrounded by stones, and turns into mud and rock collapse; adopting geotextile, the river water submerges the sediment, and only the geotextile is eroded, The importance of Geotextile in engineering construction also comes from its anti tension and anti deformation function. Of course, the geotextile will also deform under the condition of excessive external force

From the overall analysis of the project, the geotextile manufacturers have found that the average tensile strength of the slab is limited. However, at the anchoring end of the geotextile on the dam foundation and bank slope, due to the "clamp effect" caused by the rigid anchoring and huge water pressure, the geotextile will produce tensile deformation that cannot be borne by itself if the interaction between the geotextile and the dam body is not considered under the dam body load. In addition, the rigidity of geotextile has a very small effect on the structural displacement of high earth rock dam. Under the special area of rigid anchorage end, it should pay attention to the elongation of geotextile, and adopt a reasonable anti-seepage structure to make the geotextile adapt to the large deformation of local area as much as possible. However, the deformation of geotextile is limited by the displacement of the dam body on both sides, so the tensile force in geotextile will also be limited, reducing the possibility of geotextile cracking.

As we all know, needled earth is widely used in asphalt pavement, cement concrete pavement and subgrade reinforcement. Both rigid pavement and flexible pavement can be used. Compared with traditional pavement, needled earth fabric can reduce cost, prolong service life and prevent road reflection crack. Therefore, needled earth fabric is an essential material in road maintenance. In addition, needled earth fabric is used in road pavement In terms of design, there are many other reasons; for example, the product is suitable in thickness, easy to combine with asphalt pavement, and forms an isolation layer after combining with tack coat oil, which has the function of waterproof and heat preservation; the surface is rough and not easy to slide. When laying, the rough side of the surface after special treatment is upward, increasing the friction coefficient, increasing the friction coefficient, and increasing the binding force of the surface layer. Nowadays, non-woven geotextile is used in many projects, but the application of this material has not attracted people's attention. Many projects do not use this kind of material, which also leads to many problems. Nonwoven geotextile is mainly used in the fields of highway, railway, water conservancy, electric power, soil and water conservation, environmental greening and infrastructure construction. It has excellent filtering, isolation, reinforcement and protection functions, as well as the advantages of high tensile strength, good permeability, high temperature resistance, freezing resistance, aging resistance, corrosion resistance, etc.

Therefore, the geotextile manufacturers suggest that when purchasing non-woven geotextiles, they must purchase the corresponding specifications of needle punched geotextiles according to the construction requirements.

Geotextile can increase the bearing capacity of the embankment itself. Because the use of Geotextile in the filling layer can reduce the occurrence of fatigue cracks in asphalt concrete pavement, adding geotextile on the rigid lower layer can also be beneficial to prevent reflection cracks.

In the construction of geotextiles, certain stitching operations are often required because the width of the commodity is not enough. There are many details about this operation. Note: take the stitches to be used for geotextiles as an example: if the stitches to be used for the connection of geotextile commodities are required, the stitches to be used for the price stitching of geotextiles must be the same or more than the raw materials of geotextiles. Stitching The suture must be resistant to chemical ultraviolet rays. In addition, the suture and geotextile may have significant color difference, so that it can be easily viewed.