THE MECHANICS OF INFLATABLE ANCHORS IN COHESIONLESS SOIL

SOILS AND FOUNDATIONS

YI LIANG¹  TIM NEWSON¹  SEAN HINCHBERGER¹ 

[1] Geotechnical Research Centre, Department of Civil and Environmental Engineering, The University of Western Ontario

关键词: Finite Element Method;    inflatable anchor;    pullout capacity;    sand;    (IGC: E4);   

DOI  :  10.3208/sandf.49.409

学科分类：建筑学

来源: Japanese Geotechnical Society / Jiban Kogakkai

【 摘 要 】

References(17)This paper describes an investigation into the performance and pullout capacity of an inflatable anchor system. The anchor system comprises a hydraulically inflated rubber membrane or packer that may be bored into place and then inflated to provide pullout resistance. A series of scaled physical model tests were used to study the anchor performance and pullout capacity. The model tests were done in a calibration chamber using cohesionless sand and anchors of various length, diameter, embedment depth and inflation pressure. The anchor behaviour during pullout is interpreted using finite element analysis that accounts for non-linear soil behaviour, inflation and subsequent deformation of the inflatable membrane, and anchor-soil interaction. The scaled model tests and interpretations assist with identifying the dominant mechanisms affecting the pullout capacity of inflatable anchor systems.

【 授权许可】

Unknown