A FUNDAMENTAL STUDY OF BRACED EXCAVATION CONSTRUCTION

Braced excavation construction problem is an important and commonly encountered geotechnical problem. This problem is usually analyzed by conventional design methods or linear finite element analysis without sufficient consideration of the modelling of the construction operations and soil-structure interaction effects. The authors have carried out a fundamental study on this problem with due consideration to the above mentioned shortcomings. A new procedure developed by the authors for the evaluation of equivalent excavation nodal forces is also demonstrated in the present study. This procedure adopts the finite element method together with the hyperbolic model developed by duncan et al. The modelling of soil stress-strain behaviour, the dewatering process, the excavation process, and the perimeter wall/soil interface are all demonstrated using this method. The method is then used to carry out a detailed investigation into the behaviour of the excavation system during construction of a typical braced cofferdam.

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  • Corporate Authors:

    Elsevier Science Publishers

    Crown House, Linton Road
    Barking, Essex IG11 8JU,   England 
  • Authors:
    • Tsui, Y
    • Cheng, Y M
  • Publication Date: 1989

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00498449
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Sep 30 1990 12:00AM