岩土工程学报2016，Vol.38Issue(z1)：134-140,7.DOI:10.11779/CJGE2016S1025
双向拉应变对有纺织物孔径参数影响的研究
Influence of biaxial tensile strains on pore size parameters of woven geotextiles
摘要
Abstract
The filtration applications of woven geotextiles are typically subjected to biaxial tensile strains. The pore size characteristics are important parameters in filtration design. Biaxial tensile strains can cause variations of pore size characteristics, which results in the failure of filtration. Depending on the microstructure of woven geotextiles, the variations of slit-films and pore sizes are analyzed. The mathematical model for strained microstructure of geotextiles is established. The analytical solutions of several pore size parameters corresponding to biaxial strains are proposed, including percent open area and analytical equivalent opening size. The equal biaxial tensile tests are carried out to verify the analytical solutions. The pore size parameters of three slit-film woven geotextiles subjected to different levels of strains are measured and analyzed through digital image analysis, including percent open area, pore size distributions and O95. The experimental results are compared with the analytical predictions. The analytical results correlate well with the experimental values and the rates of variations, and the pore size parameters change approximately linearly with the equal biaxial tensile strains.关键词
有纺织物/孔径特征/双向拉应变/理论解/数字图像法Key words
woven geotextile/pore size characteristic/biaxial tensile strain/analytical solution/digital image analysis分类
建筑与水利引用本文复制引用
唐琳,唐晓武,曲绍兴..双向拉应变对有纺织物孔径参数影响的研究[J].岩土工程学报,2016,38(z1):134-140,7.基金项目
山东省自然科学基金项目（ZR2015PE006）；哈尔滨工业大学（威海）校科学研究基金项目（HIT（WH）201423）；山东省蓝色经济区工程建设与安全协同创新中心项目；哈尔滨工业大学科研创新基金项目 （）
