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ASTM Selected Technical Papers
Consolidation of Soils: Testing and Evaluation
By
RN Yong
RN Yong
1
Geotechnical Research Centre, McGill University
,
Montreal,
Canada
, H3A 2K6
;
symposium co-chairman and co-editor
Search for other works by this author on:
FC Townsend
FC Townsend
2Department of Civil Engineering,
University of Florida
,
Gainesville, Fla. 32611
;
symposium co-chairman and co-editor
Search for other works by this author on:
ISBN-10:
0-8031-0446-4
ISBN:
978-0-8031-0446-4
No. of Pages:
760
Publisher:
ASTM International
Publication date:
1986

The use of desktop microcomputers for automatic data acquisition of consolidation test data and data analyses is discussed. The various electrical sensing devices used to measure several test parameters are briefly described. In addition to using the desktop computer for automatic data acquisition, a program was written to analyze the data using several classical empirical procedures. The Casagrande logarithm of time fitting method and the Cour inflection point method for computing Cv are used to analyze the time-dependent data. The Casagrande and Schmertmann construction techniques are used to analyze the time-independent data. Additionally, the density, water content, and degree of saturation of the specimen are determined throughout the test.

1.
Terzaghi
,
K.
,
Erdbaumechanik auf Bodenphysikalischer Grundlage
,
Franz Deuticke
,
Leipzig and Vienna
,
1925
, p. 399.
2.
Casagrande
,
A.
, “
The Determination of the Preconsolidation Load and its Practical Significance
,” in
Proceedings
,
First International Conference on Soil Mechanics and Foundation Engineering
, Vol.
3
,
1963
, pp. 60-64.
3.
McNulty
,
E. G.
, “
Computerized Analysis of Stress-Strain Consolidation Data
,”
Kentucky Bureau of Highway
, Research Report 468, Lexington, KY,
1977
.
4.
Schmertmann
,
J. H.
, “
The Undisturbed Consolidation Behavior of Clay
,”
Transactions of American Society of Civil Engineers
, Vol.
120
, Paper 2775,
1955
.
5.
Casagrande
,
A.
, “
Notes on Soil Mechanics—First Semester
,”
Harvard University
(unpublished), Cambridge, MA,
1938
, p. 129.
6.
Cour
,
F. R.
, “
Inflection Point Method for Computing C
,”
Journal of the Soil Mechanics and Foundations Division, Transactions of American Society of Civil Engineers
, Vol.
97
, No.
SM5
,
1971
, pp. 827-831.
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