Cyclic strengths for high density soils related to pore water pressure

  • Mahmoud Samir El-Kady
  • Mohamed Abdalla ElMesmary
Technical Paper
  • 3 Downloads

Abstract

In studies of soil mechanics, a common approach has been to consider a state of 100% pore water pressure build-up or, alternatively, the development of 5% double-amplitude cyclic strain as a yardstick for identifying a state of cyclic instability. For clayey soils or sandy soils with a considerable amount of fines, the excess pore water pressure during cyclic loading does not reach the case of 100% of the confining stress. For such soils, the cyclic strength is recognized when a certain level of double-amplitude cyclic strain is developed after a certain number of cycles, without taking into consideration the level of excess pore water pressure induced during cyclic loading. Therefore, these soils undergo high levels of effective stress loss on their way to cyclic failure. In this paper, an approach is proposed for determining cyclic strength in relation to the level of the excess pore water pressure or the loss of mean effective stress. This results in a greater decrease in cyclic strength than that determined by the known method. Therefore, additional safety factors are introduced to ensure that both the loss in effective stress and the induced cyclic strains do not exceed certain limits during cyclic loading.

Keywords

Cyclic strength Excess pore water pressure High-density soil Liquefaction 

References

  1. 1.
    Amini F, Qi GZ (2000) Liquefaction testing of stratified silty sands. J Geotech Geoenviron Eng ASCE 126(3):208–217CrossRefGoogle Scholar
  2. 2.
    Boulanger R, Idriss I (2006) Liquefaction susceptibility criteria for silts and clay. J Geotech Geoenviron Eng ASCE 132(11):1413–1425CrossRefGoogle Scholar
  3. 3.
    Boulanger R, Idriss I (2007) Evaluation of cyclic softening in silts and clay. J Geotech Geoenviron Eng ASCE 133(6):641–652CrossRefGoogle Scholar
  4. 4.
    Casagrande A (1970) On liquefaction phenomenon. Geotechn Lond England XXI(3):197–202Google Scholar
  5. 5.
    Castro G (1975) Liquefaction and cyclic mobility of saturated sands. J Geotech Eng Div ASCE 101(GT6):551–569Google Scholar
  6. 6.
    Eliana M, Patino H, Galindo R (2017) Evaluation of the risk of sudden failure of a cohesive soil subjected to cyclic loading. Soil Dyn Earthq Eng 92:419–432CrossRefGoogle Scholar
  7. 7.
    El Mesmary MA, Nabeshima Y, Matsui T (1999) Development of cyclic hollow cylindrical torsional testing apparatus with bender elements. Technol Rep Osaka Univ 49(2356):155–164Google Scholar
  8. 8.
    Hyodo M, Murata H, Yasufuku N, Fuji T (1991) Undrained cyclic shear strength and residual shear strain of saturated sand by cyclic triaxial tests. Soils Found 31(3):60–76CrossRefGoogle Scholar
  9. 9.
    Hyodo M, Yamamoto Y, Sugiyama M (1994) Undrained cyclic shear behavior of normally consolidated clay subjected to initial static shear stress. Soils Found 34(4):1–11CrossRefGoogle Scholar
  10. 10.
    Hyodo M, Yasuhara K, Hirao K (1992) Prediction of clay behavior in undrained and partially drained cyclic triaxial tests. Soils Found 32(4):117–127CrossRefGoogle Scholar
  11. 11.
    Hyodo M, Uchida K (1998) Categories of cyclic problems of clayey soils. J Jpn Geotechn Soc Soils Found 46(6):53–58 (in Japanese) Google Scholar
  12. 12.
    Ishihara K, Koseki J (1989) Cyclic shear strength of fines-containing sands. In: Proceedings of the 12th International Conference on Soil Mechanics and Foundation Engineering, Tokyo, pp 101–106Google Scholar
  13. 13.
    Iwasaki T, Tatsuoka F, Takagi Y (1978) Shear moduli of sands under cyclic torsional shear loading. Soils Found 18(1):39–56CrossRefGoogle Scholar
  14. 14.
    Kuwano J, Nakano H, Sugihara K, Yabe H (1996) Factors affecting undrained cyclic strength of sand containing fines. In: Proceedings of the 31st Annual Meeting of Japanese Geotechnical Society, pp 989–990 (in Japanese) Google Scholar
  15. 15.
    Matsumura S, Miura S, Yokohama S, Kawamura S (2015) Cyclic deformation-strength evaluation of compacted volcanic soil subjected to freeze–thaw sequence. Soils Found 55(1):86–98CrossRefGoogle Scholar
  16. 16.
    Tatsuoka F, Muramatsu M, Sasaki T (1982) Cyclic undrained stress-strain behavior of dense sands by torsional simple shear test. Soils Found 22(2):55–70CrossRefGoogle Scholar

Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Civil Engineering Department, Faculty of EngineeringZagazig UniversityZagazigEgypt
  2. 2.Faculty of EngineeringJouf UniversityAl-JawfKingdom of Saudi Arabia
  3. 3.Civil Engineering Department, Faculty of EngineeringKafr Elsheikh UniversityKafr ElsheikhEgypt

Personalised recommendations