The historical development of geotextiles

The application of geotextiles abroad began as early as the 1960s. The United States is the country with the largest consumption of geotextiles in the world. In the early 1990s, its annual consumption was more than 300 million m2, and the consumption reached 700 million m2. Geotextiles in Europe and Japan have also developed rapidly. The annual consumption of geotextiles in Europe is also about 400 million m2, of which spunbond nonwovens account for about 60% of nonwoven geotextiles; Cloth applications have grown significantly. Among Japanese non-woven geotextiles, the spunbond method is the most used, accounting for about 60% of the total non-woven geotextiles, and mainly PET spunbond fabrics.
Geotextiles in my country started in the early 1980s, but the amount was very small at that time, and it was only an experimental application. It was not until the catastrophic flood in 1998 that the government paid attention to it, and the construction department included the application of geotextiles in the design specifications, and formulated relevant national standards, and geotextiles were truly valued and developed. The amount of geotextiles in my country has exceeded 300 million m2, and non-woven geotextiles account for about 40% of the total. my country's civil engineering construction has a huge potential market, and its potential is by no means lower than the 700 million to 800 million m2 used in the United States. Experts estimate that my country's geotextiles will continue to grow by double digits in the next 15 years, among which PET spunbond filament geotextiles will grow faster.
During the "Tenth Five-Year Plan" and the "Eleventh Five-Year Plan" period, my country planned to invest huge amounts in water conservancy, electric power, transportation, environmental protection, river management and other projects, including water conservancy construction, South-to-North Water Diversion Project, power investment, highways and railways Construction, environmental engineering construction, as well as ports, airports, garbage disposal, rivers, lakes and seas, sand control and other projects, the investment is estimated to reach one trillion yuan. In the next 10 years or more, there will be more infrastructure projects to be built in China, and the demand for geotextiles will also increase. China will become the largest marketing market for geosynthetics in the world.
Seawall, river embankment, lake embankment up-to-standard project; reservoir reinforcement project; reclamation project; flood control and emergency rescue.
Highway and railway airport engineering: soft foundation reinforcement treatment; slope protection; pavement anti-reflection crack structure layer; drainage system; green isolation belt.
Electrical Engineering:
Nuclear power plant foundation engineering; thermal power ash dam engineering; hydropower station engineering.
other information:
The good air permeability and water permeability of geotextiles are used to allow water to flow through, thereby effectively intercepting sand loss.
Geotextile has good water conductivity, it can form drainage channels inside the soil, and discharge excess liquid and gas in the soil structure.
It effectively spreads, transmits or decomposes the concentrated stress to prevent the soil from being damaged by external force.
Prevent mixing between the upper and lower layers of sand, soil and concrete.
High water permeability—under the pressure of soil and water, it can still maintain good water permeability.
Corrosion resistance - using chemical fibers such as polypropylene or polyester as raw materials, it is resistant to acid and alkali, no corrosion, no moth-eaten, and anti-oxidation.
Simple construction - light weight, easy to use, simple construction.