Field pullout response of unanchored straight polyester geostraps

Widjojo A. Prakoso, Dandung S. Harninto, Dian A. Moelyani, Rakhman Taufik

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper reports the field experimental study and test results of polyester unanchored straight geostraps. This study is a part of an extensive study is currently underway to understand the behavior of these walls under seismic lateral loads. In an on-going GRS-RW project in Padang Pan-jang, West Sumatera, Indonesia, a series of additional geostraps was installed and subsequently tested. This paper describes the fill and geostrap materials and the pullout system, and discusses the test results and overall behavior. Five geostrap samples having different lengths and vertical confining stresses were tested. The failure mode of the geostraps was mostly the rupture of geostrap material, which involved a much higher pullout force than the calculated capacity. The pullout secant stiffness is discussed, and the stiffness decreased with an increase in displacement. For displacement < 20 mm, the variability of stiffness was high, while for displacement > 20 mm, the variability is relatively low.

Original languageEnglish
Title of host publication10th International Conference on Geosynthetics, ICG 2014
EditorsMartin Ziegler, Kirsten Laackmann, Gerhard Brau, Georg Heerten
PublisherDeutsche Gesellschaft fur Geotechnik e.V.
ISBN (Electronic)9783981395396
Publication statusPublished - 1 Jan 2014
Event10th International Conference on Geosynthetics, ICG 2014 - Berlin, Germany
Duration: 21 Sep 201425 Sep 2014

Publication series

Name10th International Conference on Geosynthetics, ICG 2014

Conference

Conference10th International Conference on Geosynthetics, ICG 2014
CountryGermany
CityBerlin
Period21/09/1425/09/14

Keywords

  • Geostrap
  • Pullout test
  • Reinforcement

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