Interpretation of Creep Behaviors of Geosynthetics by Installation Damage Test

시공 시 손상 시험에 의한 지오신세틱스의 크리프 거동 해석

  • 정연인 (계명대학교 토목공학과) ;
  • 전한용 (인하대학교 나노시스템공학부)
  • Received : 2010.03.27
  • Accepted : 2010.06.05
  • Published : 2010.06.30

Abstract

An installation damage test of geogrids and reinforced geosynthetics were performed at different installation depths (20, 30, 40, 60, 80 and 100 cm). A wide-width tensile test was used to evaluate both damaged and undamaged geosynthetics. The tensile strength of all geosynthetics decreased by 2~30%. The reduction factor was determined after evaluating the creep deformation behavior for 10,000 hours. The creep strain of damaged geosynthetics was approximately 1~2% higher than that of the undamaged geosynthetics under the same creep load conditions. These results may be used to predict the long-term performance of geosynthetics by estimating the reduction factor that accounts for construction-induced damage and creep deformation.

Keywords

References

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