MULTIBELL AND BLOCK ANCHOR CAPACITIES IN SAND

For the support of retaining structures, the use of anchors is often required. A sizeable number of these are either block anchors or multibell anchors with the enlargement of the section at predetermined locations. The pullout capacity of a block anchor normally depends very much on the peripheral friction on its shaft whereas that of a multibell anchor is predominantly dependent on the earth pressures on the faces of the bells. A laboratory-scale investigation was undertaken to study the effect of anchor length on friction, and therefore pullout capacity, on horizontal block and multibell anchors at different embedment depths in sand. The behaviour of multibell and block anchors in purely granular soils was also investigated by means of a two-dimensional pin model analogy and the patterns of the soil flow at failure were qualitatively examined in line with classical plasticity theories. Results obtained from tests in sand showed that for anchor lengths up to forty diameters, the shaft friction of a block anchor increases Linearly at each embedment depth considered. (TRRL)

  • Availability:
  • Corporate Authors:

    Japanese Society of Soil Mech & Foundation Engrs

    Tokyo,   Japan 
  • Authors:
    • Akinmusuru, J O
  • Publication Date: 1984-12

Media Info

  • Features: Figures; Photos; References;
  • Pagination: p. 118-130
  • Serial:
    • SOILS AND FOUNDATIONS
    • Volume: 24
    • Issue Number: 4
    • Publisher: JAPANESE GEOTECHNICAL SOCIETY
    • ISSN: 0038-0806

Subject/Index Terms

Filing Info

  • Accession Number: 00396198
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Jan 31 1986 12:00AM