8/30/2008

The simplified technique for an estimation of mechanical characteristics of frozen soils

It is recommended at foundations design and corresponding geocryological survey to use the following simplified models for definition of mechanical characteristics of frozen soils, which are described particularly in the book of Dr A. Gerasimov «Foundations in Permafrost»,
https://sites.google.com/site/permafrostfoundations/english-version
  1. The proved regional tables of the mechanical characteristics.
  2. Theoretical estimate of mechanical characteristics of frozen soils as composite materials at full or partial absence of test data for similar soils and (or) their components - the book sections 4.3.4, 4.4.2 - 4.4.4, 6.1, 6.2, 7.2 – 7.4; the websites:
    Test-free determination of mechanical properties of ice-rich soils –
    http://permafrost-foundations.blogspot.com/2008/08/blog-post_09.html
    Test-free determination of mechanical properties of saline frozen soils –
    http://permafrost-foundations.blogspot.com/2008/08/blog-post.html
    Thermal stresses and strains in frozen soils (in Russian)–
    http://permafrost-foundations.blogspot.com/2008/08/blog-post_15.html
  3. Time analogies of a stress-strain state of soils with use of universal analytical dependences for creep strains, strength and temperature in characteristic ranges of stresses (the book sections 4.1.1, 4.1.2, 4.2, 4.3.5, 4.4.6, 6.2).
  4. Analytical analogies of soil strains and failure in time (the book sections 4.1.1 - 4.1.3, 4.3.3).
  5. The complex stress-strain theory of soils (the book sections 4.1.1 - 4.1.3, 4.4.5, 7.2.2).
  6. Express-methods for experimental determination of mechanical properties of frozen soils - the book sections 4.4.3, 5.2.1, 5.2.4, 5.3, 7.3.2, 7.4.1, 7.4.2, 8.5, 10, 11; the website:
    http://permafrost-foundations-e.blogspot.com/2008/08/express-method-for-determination-of.html
  7. The known laboratorial methods of determination of tangential forces of frost heave with updating the received values by the soil type and the design temperature (the book sections 7.4.1, 7.4.2, 9.2, 9.3).
  8. The modern laboratorial methods of determination of normal forces of frost heave, and deformations of frost-susceptible and thawing soils - the book section 1; the publications # 7, 20 in the appropriate file (in the attachments) on the website (0.1 Mb)
    https://sites.google.com/site/permafrostfoundations/english-version

    The useful websites:
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