ASSESSING PROBLEMS OF UNDERGROUND STRUCTURES. PART ONE

An analysis is presented of case histories where problems in rock excavations are encountered. These case histories illustrate the difficulties encountered in defining the modulus of elasticity of rock masses based on in situ measurements, and in determining other constants of rock masses such as the crushing strength and cohesion. One of the case histories, the excavation of several caverns for the Cabora Bassa underground powerhouse, illustrates the use of the finite element method of design, which takes into account the vertical and horizontal residual stress in the rock, the shape of the excavations, the rock characteristics, the geological stratification, and the construction program. Another case history of a circular excavation illustrates the case of overstressed rock where elasto-plastic deformations occur. /HRIS/

  • Corporate Authors:

    IPC Electrical Electronic Press Limited

    Dorset House Stamford Street
    London SE1 9LU,   England 
  • Authors:
    • Jaeger, C
  • Publication Date: 1975-12

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Filing Info

  • Accession Number: 00128960
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 10 1976 12:00AM