THREE-DIMENSIONAL FINITE ELEMENT ANALYSIS OF DEEP EXCAVATIONS

The authors of this paper propose a nonlinear, three-dimensional finite element method for deep excavation analysis. The method and the analytical procedures to model the excavation processes were coded into a computer program, and the accuracy of the program was evaluated. A series of convergence studies were conducted to minimize the number of elements and nodes without sacrificing the accuracy of analysis. The effect of the existence of the corner on the deflection behavior of an excavation was examined extensively by analyzing a typical excavation with soft to medium clayey subsoil stratum. Through a series of parametric studies, a tentative relationship develops for estimating three-dimensional maximum wall deflection of an excavation based on two-dimensional finite element results. Finally, the case of an irregularly-shaped excavation with field measurements of wall deflection was investigated. Results of analyses reveal good agreement with field measurements.

Language

  • English

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: p. 337-345
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00720457
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 29 1996 12:00AM