EFFECTS OF TRANSVERSE RIBS ON PULLOUT RESISTANCE AND DEFORMATION DURING THE UNLOADING-RELOADING PROCESS

• Nguyen Giang H.

  Department of Civil & Environmental Engineering, Saitama University

• Kuwano Jiro

  Geophere Research Institute, Saitama University

• Izawa Jun

  Dept. of Civil Engineering, Tokyo Institute of Technology

• Seki Sakae

  Dept. of Civil Engineering, Tokyo Institute of Technology

Bibliographic Information

Other Title

• 除荷－再載荷過程における引抜き抵抗と変形に及ぼすジオグリッド横方向部材の影響

Abstract

It is considered that the pullout resistance is more affected by the transverse elements than the longitudinal elements. In this study a square and a circle opening type and a plate are tested of pullout resistance in Toyoura sand during the unloading-reloading process through a series of laboratory model tests. The results show that unloading-reloading process reduces the pullout resistance of both two types of geogrid and a plate at peak value and at the residual part. But the pullout resistance of the square geogrid type in this study is decreased more as well as less stable than that of the other two. Moreover, the square geogrid type takes larger displacement to reach to the peak values of pullout resistance than the circle and plate ones do. To discuss the effects, all of the deformation of soil around geogrid is observed while it is pulled out. The PIV analysis shows the mechanism and effects of transverse ribs on the pullout resistance.

Journal

• Geosynthetics Engineering Journal

  Geosynthetics Engineering Journal 23 37-44, 2008

  Japan Chapter of International Geosynthetics Society

Keywords

• Pullout test
• Unloading-reloading
• dilatancy

Details

• CRID: 1390001205213903232
• NII Article ID: 130000142755
• DOI: 10.5030/jcigsjournal.23.37
• ISSN: 1883146X
• ISSN: 13446193
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed