›› 2006, Vol. 27 ›› Issue (4): 581-585.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Study on interaction characteristics between geosynthetics and fill materials by pull out tests

WU Jing-hai   

  1. Tianjin Municipal Engineering Research Institute, Tianjin 300074, China
  • Received:2004-08-25 Online:2006-04-10 Published:2013-11-05

Abstract: The interaction characteristics of geosynthetics with fill materials are the key factors for geosynthetic reinforcement projects; hence, it is essential to study interaction characteristics by pull out tests. The comprehensive investigation into the interaction characteristics of 5 kinds of domestic geosynthetics with sand and lime fly ash was presented by pull out tests. Experimental results show: (1) Lime fly ash is light in unit weight, high in shear strength and its pull out coefficient (Cpo); therefore, it is ideal fill material; (2) Geosynthetics are arranged in Cpo from high to low: polyester (PET)warp knitting geogrids, uniaxial/biaxial oriented geogrids, geonets and geotextiles; (3) The variation of Cpo for various geosynthetics and fill materials is larger, hence Cpo should be determined through pull out tests for concrete projects. These conclusions can be used to guide choosing geosynthetic type and to make research on geosynthetic reinforcement mechanism.

Key words: interaction characteristics, geosynthetics, sand, lime fly ash, pull out test

CLC Number: 

  • TU 43
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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