Prediction method of life of underwater earthworker's fabrics

Abstract

A method for predicting lifetime of geotextile under water utilizes rule that fabric breaking strength is attenuated in following increase of ultraviolet radiation and utilizes attenuation rule of ultraviolet radiation under water to test lifetime of geo-textile under water. In the method, sample cutting off from geo-textile under water is not required so completeness of engineering can be kept and prediction cost of engineering lifetime can be lowered.

Description

technical field [0001] The invention relates to a method for predicting the service life of a geotextile. In particular, it relates to a prediction method for underwater geotextile life. Background technique [0002] Geosynthetics are widely used in construction, transportation, water conservancy, etc., and most of their raw materials are polymer materials. Affected by sunlight, temperature, water vapor and other factors in the atmospheric environment, as the use time increases, geosynthetics will degrade, which is reflected in the macroscopic aspect, manifested as the decay of physical and mechanical properties, such as the decrease in strength, thus losing Or partially lose its function, this process is called aging of geosynthetics. Before the 1980s, most geotechnical materials only played a small role in engineering, for example, as a temporary reinforcement layer, an isolation layer of soil and concrete in the foundation, etc., before the natural reinforcement of vege...

AI Technical Summary

Problems solved by technology

This test method is time-consuming and labor-intensive, and the test cost is high. The obtained data is subjective and random, and cannot fully and accurately reflect the life of underwater polypropylene geotextiles.

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