ARCH DAMS: CURRENT RESEARCH IN BRITAIN

An extensive program of research (both experimental and theoretical) is reported which is based on five profiles of varying sophistication. A "standard" symmetrical valley was adopted as a basis for the comparison of the five types of profile. Details are given of the five idealized arch dam profiles: (1) a rectangular profile of constant radius, leading to a simple cylindrical dam of constant thickness with both water and air forces vertical; (2) a curved profile of nearly constant thickness associated with variable radius, leading to a double curvature dam; (3) a trapezoidal profile with a vertical face of constant radius; (4) a further development of (3) with a curved air face; (5) a double curved dam similar to (2) but with a more usual profile, thinner at the crest and thicker at the base. Investigations are described which led to the development of a cement-mortar model technique in which the strains are measured by electrical resistance gauges. Details are given of the model as well as silicone rubber models. The theoretical study is reported of the application of 2-dimensional elastic shell theory and the experimental study of the use of photoelastic techniques and the use of plaster-dicalite models. Analysis of the stresses in some typical arch dam structures has been carried out using the "frozen stress" photoelastic technique. The results are summarized of a comparative study of the 5 types of dams and of an investigation into the effect of varying the elastic modulus of the valley. Work in progress is outlined on the solution of the exact elastic equations for the various dam profiles. Work is reported on finding a generally applicable method for arch dams which would be free of the limitations involved in dealing with such situations as openings in the structure of the introduction of structural hinges.

  • Availability:
  • Corporate Authors:

    Engineering, Chemical and Marine Press, Limited

    33-39 Bowling Green Lane
    London EC1P 1AH,   England 
  • Publication Date: 1964-5-8

Media Info

  • Features: Figures;
  • Pagination: p. 649-652
  • Serial:
    • ENGINEERING
    • Volume: 197
    • Issue Number: 5116
    • Publisher: GILLARD WELCH LIMITED
    • ISSN: 0013-7782

Subject/Index Terms

Filing Info

  • Accession Number: 00081221
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 26 1975 12:00AM