MECHANICAL BEHAVIOR OF VERTICAL EXCAVATED NAILED WALLS

The development of axial, shear forces and bending moment in a nailed wall, and the influence of nail inclination on nailed wall behaviour are evaluated through a finite difference program and presented in this paper. Predictions using three types of soil, three nail diameters and three nail inclination angles are analyzed for parametric studies. The average mobilized tensile force level reaches 40% for low N values. The average mobilized moment levels are less than 10% and the average mobilized shear forces are insignificantly small. Increased nail inclination results in a reduction in the effective length and safety factor against pullout failure. However, nail inclination has an insignificant effect on the safety factor against nail breakage. In nailed walls that failed by pullout, a steeper nail reduces the maximum tensile nail force as well as the ultimate bearing capacity of the wall. Increasing the axial nail stiffness can prevent a facing panel from suffering horizontal movement. This also reduces the ultimate bearing capacity of the nailed wall. (A)

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  • Corporate Authors:

    SOUTHEAST ASIAN GEOTECHNICAL SOCIETY

    ASIAN INSTITUTE OF TECHNOLOGY, PO BOX 4, KHLONG LUANG
    PATHUMTHANI 12120,   Thailand 
  • Authors:
    • HONG, Y S
    • WU, C S
    • CHEN, R H
  • Publication Date: 2003-8

Language

  • English

Media Info

  • Features: References;
  • Pagination: p. 87-99
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00972053
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Apr 22 2004 12:00AM