Journal Published Online: 01 March 1993
Volume 16, Issue 1

On the Measurement of Critical State Parameters of Dense Granular Soils

CODEN: GTJODJ

Abstract

Existing test methods for measuring the critical state parameters of granular soils are reviewed and critically evaluated. It is concluded that, in triaxial testing of dense sand, significant nonhomogeneous deformation will develop prior to approaching a critical state. Hence, the critical state parameters so measured are questionable. A new test method, referred to as post-failure undrained testing, is presented. The proposed method is simple, but can bring a dense granular sand to a critical state without development of noticeable nonhomogeneous deformation. The critical state parameters so measured with dense specimens agree well with those measured with loose specimens. This is consistent with the postulate that the critical state surface is unique.

Author Information

Chu, J
School of Civil and Structure Engineering, Nanyang Technological University, Nanyang Avenue, Singapore
Lo, S-CR
University of New South Wales, Australian Defence Force Academy, Canberra, ACT, Australia
Pages: 9
Price: $25.00
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Stock #: GTJ10264J
ISSN: 0149-6115
DOI: 10.1520/GTJ10264J