Seismic behavior of reinforced soil wall combined with soil cement

• IZAWA Jun

  Department of Civil Engineering, Tokyo Institute of Technology

• SAITOH Tomoya

  Engineering Division, Dai Nippon Construction

• ITOH Hideyuki

  Engineering Division, Dai Nippon Construction

• UENO Makoto

  Engineering Division, Dai Nippon Construction

• KUWANO Jiro

  Geosphere Research Institute, Saitama University

Bibliographic Information

Other Title

• ジオグリッドと改良土を組み合わせた補強土壁の地震時挙動に関する研究

Abstract

A new type geogrid-reinforced soil wall (GRSW) combined with soil cement was developed. Though higher stability of GRSW was found from the past studies, little is known about the seismic stability so far. Therefore, the centrifuge shaking table tests under the centrifugal acceleration of 50G were carried out to study the behavior of the new type GRSW during earthquake. In the centrifuge tests, deformation of the wall could be measured by using a CCD camera and image processing system. GRSW combined with soil cement wall exhibited high seismic stability as compared with the conventional GRW and the retaining wall made of soil cement. At the high seismic intensity, however, a tension crack was observed at the top of the soil cement wall. Such a tension crack was stopped by mixing short fibers into the soil cement. As a result, the reinforced soil wall achieved very high seismic stability.

Journal

• Japanese Geotechnical Journal

  Japanese Geotechnical Journal 2 (2), 73-86, 2007

  The Japanese Geotechnical Society

Keywords

• geogrid-reinforced soil wall
• soil cement
• centrifuge test
• seismic stability

Details

• CRID: 1390001205257839360
• NII Article ID: 130004482748
• DOI: 10.3208/jgs.2.73
• ISSN: 18806341
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed