ISSN: 1945-7545
CODEN: GTJODJ
Page Count: 8

Use of Time Series in Geotechnical Data Analysis

Wu, TH
Professor and graduate studentmember of ASTM, Ohio State University, Columbus, OH

El-Jandali, A
Professor and graduate studentmember of ASTM, Ohio State University, Columbus, OH

Abstract

Methods of time series analysis based on the Box-Jenkins method were used to analyze random variations and inherent variability in geotechnical test data. The paper presents a summary of the time series models and their application to the analysis of data from unconfined compression tests, field vane tests, and cone penetration tests. The integrated-moving-average-autoregressive model was found to be a versatile tool and served this purpose well. The model permits the determination of the autocavariance function and the random testing error that best fit the test data.

Keywords:
unconfined compression tests, laboratory tests, field tests, data analysis, cone penetration test, field vane test, soil variability, testing error, time series

Paper ID: GTJ10531J
DOI: 10.1520/GTJ10531J
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