ISSN: 1945-7553
CODEN: JTEVAB
Page Count: 4

Generalized Equation for Compression Ratio

Nagaraj, TS
Professor and Chairman, Indian Institute of Science, Bangalore,

Joshi, RC
Professor of Civil Engineering, University of Calgary, Calgary,

Srinivasa Murthy, BR
Assistant Professor, Indian Institute of Science, Bangalore,

(Received 23 June 1986; accepted 20 April 1987)

Abstract

For highly compressible normally consolidated saturated soil the compression index, C_c, is not constant over the entire pressure range. However, the ratio of the compression index and the initial specific volume, generally known as the compression ratio, appears to be constant. Thus settlement seems to depend on C_c/(1 + e) rather than C_c alone. Using the theoretical zero air voids line and the generalized compressibility equation for normally consolidated saturated soils, a generalized and simple equation for compression has been derived in the form: C'_c = 0.003w_L.

Keywords:
compression ratio, compression index, generalized soil state parameter, liquid limit, prediction

Paper ID: JTE11055J
DOI: 10.1520/JTE11055J
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