Assessments of Hydraulic Properties of Geotextiles with Fiber Composition Factors

섬유 구성인자에 의한 지오텍스타일의 수리학적 특성 평가

  • Jeon, Han-Yong (Faculty of Applied Chemistry, Chonnam National University) ;
  • Chung, Jin-Gyo (Group-Dept. of Architecture and Civil Eng. Pusan College of Information Technology) ;
  • Chang, Yong-Chai (Division of Marine System Engineering, Mokpo National Maritime University)
  • 전한용 (전남대학교 공과대학 응용화학공학부) ;
  • 정진교 (부산정보대학, 건설계열) ;
  • 장용채 (목포해양대학교 해양시스템공학부)
  • Published : 2003.03.30

Abstract

The effects of fiber composition factors of 14 geotextiles which are thickness, porosity, fiber length and diameter etc. on the transmissivity were examined and in-plane permeability of geotextiles under thickness change, transmissivity, confined load were analyzed by the constitutive equations. And the effects of laminar structure on the permittivity of laminar geotextile composites which were manufactured with fiber packing densities were assessed. Transmissivities were increased with thickness of geotextiles and in-plane permeability coefficients were increased with porosity and fiber diameter. The effects of porosity were decreased with normal stress and slightly increased with fiber length. Transmissivities were increased with fiber diameter and showed same tendensy for the same fiber length. Permittivities of laminar geotextile composites were influenced by the waterhead loss in the inner interface and the connection shape of these composites to water path was interpreted as bell mouth type or soft flux pipe type.