ROW: Filteration Behavior of Non-woven Geotextiles With Cap-Graded and Silty Sands

ROW：无纺土工布对盖级配粉砂的过滤性能

• 批准号: 8910052
• 负责人: Shobha Bhatia
• 金额: $ 7.41万
• 依托单位: Syracuse University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-07-01 至 1990-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8910052&HistoricalAwards=false
• 关键词: ROW; Filteration; Behavior; Non; woven

This career advancement award will enable the PI to work in a new area and enhance her research capabilities. The research deals with geotextiles, a relatively new and rapidly developing area in geotechnical engineering. Geotextiles are often used in drainage applications as a filter medium,i.e. when placed against soil they prevent the soil from moving or eroding, while allowing the free passage of water through the soil and the geotextile. However, if the fabric and soil are not properly matched, the filter (the fabric in this case) can become clogged with soil particles, and water will not pass through the drain. The drain has failed by clogging. This project will study the filtration behavior of nonwoven geotextiles when used in drainage applications with gap-graded and silty sands. The soil retention and clogging mechanism in nonwoven (both needle-punched and heat-bonded) geotextile fabric will be studied from macroscopic and microscopic points of view. The PI will work with Professors R.M. Koerner (Drexel University), A. Rollin (Ecole Polytechnique) and C. Tien (Syracuse University) to gain a deeper understanding in this new line of research. This project will also explore industrial interaction in the proposed area of study.

这一职业发展奖将使PI在一个新的工作， 提高研究能力。 研究交易 土工布，一个相对较新和快速发展的领域， 岩土工程 土工织物常用于排水 作为过滤介质的应用，即当放置在土壤上时 他们防止土壤移动或侵蚀，同时允许 水通过土壤和土工织物的自由通道。 然而，如果织物和土壤不匹配， 过滤器（在这种情况下是织物）可能会被污垢堵塞 颗粒，水不会通过排水管。漏极 因堵塞而失败。该项目将研究过滤 非织造土工布排水性能 间隙级配和粉砂的应用。土壤保持 和非织造布（针刺和 热粘合）土工织物将从宏观上进行研究 和微观的观点。PI将与教授合作 R.M. Koerner（Drexel University），A.罗林（巴黎综合理工学院） 和C.田（锡拉丘兹大学）获得更深入的了解 在这个新的研究领域。该项目还将探索 在拟议的研究领域的工业互动。