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Suction and shear wave velocity measurements for assessing sample quality.

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Sample quality is very important for obtaining reliable geotechnical parameters, especially because the reliability design method has been recently introduced into geotechnical engineering (for example, Eurocode 7). The sample quality is usually assessed by comparing the values of strength, Young's modulus and strain at failure from unconfined compression test as well as the values of pre-consolidation pressure, compression index, and volumetric strain at in situ stresses from oedometer test. However, since the assessment criteria are based on past experience, the above conventional methods should be examined carefully in order to explain whether they can or cannot be applied to the layers tested. In addition, it should be noted that they are destructive, i.e., after assessing the specimen quality, it is cannot be used for testing anymore. In this paper, the possibility of assessing a sample quality by suction (p'r) and shear wave velocity (vv) is examined.
Wydawca
Rocznik
Strony
163--175
Opis fizyczny
Bibliogr. 9 poz.
Twórcy
autor
autor
  • Hokkaido University, Sapporo, Japan,
Bibliografia
  • [1] ANDERSEN A., KOLSTAD P., The NGI 54mm sampler for undisturbed sampling of clays and representative sampling of coarser materials, Proc. of Int. Symposium of Soil Sampling, Singapore, 1979, 13-21.
  • [2] HlGHT D.W., A review of sampling effects in clays and sands, Proc. Int. Conf. on Offshore Foundations and Sight Investigation, Society for Underwater Technology, 1992, Klewer, 115-146.
  • [3] LUNNE T., BERRE T., STRANDVIK S., Sample disturbance effects in soft low plastic Norwegian clay, Proc. of the Conference on Recent Developments in Soil and Pavement Mechanics, Rio de Janeiro, 1997, 81-102.
  • [4] LUNNE T., LONG M., FORSBERG C.F., Characterization and engineering properties of Onsoy clay, Characterization and engineering properties of natural soils, 1, 2003, Balkema, 395-428.
  • [5] LUNNE T., BERRE T., ANDERSEN K.H., STRANDVIK S., SJURSEN M., Effects of sample disturbance and consolidation procedures on measured shear strength of soft marine Norwegian clays, Canadian Geotech. J., 2006, 43, 726-750.
  • [6] TANAKA H., Sample quality of cohesive soils: lessons from three sites, Ariake, Bothkennar and Drammen, Soils and Foundations, 2000, 40(4), 57-74.
  • [7] TANAKA H., Re-examination of established relations between index properties and soil parameters, Proc. of Coastal Geotechnical Engineering in Practice, 2002, (2), 3-25.
  • [8] TANAKA H., RUOH F., OMUKAI N., Quality of samples retrieved from great depth and its influence on consolidation properties, Canadian Geotech. J., 2002,39, 1288-1301.
  • [9] TANAKA H., TANAKA M., Main factors governing residual effective stress for cohesive soils sampled by tube sampling, Soils and Foundations, 2006, 46(2), 209-219.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPW6-0008-0044
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