土工织物孔径特征数字图像方法研究进展

Research progress on digital image methods for pore size characteristics of geotextile

孔径特征是土工织物的重要参数,一方面,众多交通、水利等工程标准都将土工织物孔径特征作为必须考虑的关键设计参数,另一方面,土工织物孔径特征对于土工织物的性能和功能发挥具有直接影响。本文介绍了土工织物传统测试方法的试验原理以及优缺点,回顾了主要研究进展。随着时代发展,数字时代呼唤数字技术,文章重点介绍了若干为提高土工织物孔径特征测试可视化、可重复性发展的数字图像新技术,包括有纺织物数字图像方法、无纺织物二维图像方法和无纺织物三维图像方法。最后针对土工合成材料领域的若干工程和研究需求,探讨了土工织物孔径特征测试领域的发展趋势。

The pore size characteristics are important parameters of geotextile.On the one hand,many engineering standards in fields such as transportation and water conservancy consider the pore size characteristics of geotextiles as key design parameters that necessitate consideration.On the other hand,the pore size characteristics of geotextile directly influence their performance and functionality.This paper presents an overview of the foundational principles,advantages,and drawbacks of conventional testing methods for geotextile.Additionally,it offers a comprehensive review of the primary research advancements.In the contemporary era,the digital age necessitates the integration of digital technology.The primary focus lies in introducing a range of emerging digital image technologies designed to enhance the visualization and reproducibility of pore size characteristic testing for geotextile.These encompass digital image methods for woven geotextile,two-dimensional and three-dimensional image methods for nonwoven geotextile.Ultimately,while addressing diverse engineering and research requirements in the domain of geosynthetic materials,this paper explores the developmental trends related to pore size characteristic testing for geotextile.