Dry density in relation to other geotechnical proprieties of Algiers clay
Mohammed Amin Benbouras, Ratiba Mitiche Kettab, Hamma Zedira, Alexandru-Ionut Petrisor, Fatiha Debiche
Rezumat/Abstract. Geotechnical study is one of the most important stages of the project study; it is based on an objective study on the soil of the site to determine the various characteristics, whether mechanical or physical. On the other hand, in the majority of projects the number of completed tests does not allow to get reliable statistical results, but here it features the role of personal or collective experiences to use different correlations performed by researchers and statistical studies carried out for the different soil characteristics. This article shows the results of a statistical study to relate dry density to other geotechnical parameters like wet density (Dh), plasticity index (Ip), water content (w), void ratio (e), plastic limit (Wp), liquid limit (Wl), consistency index (Ic), Preconsolidation pressure (σ'p), Compression Index (Cc), swelling index (Cg), cohesion (cu), friction angle (φ) and liquidity index (Il); in Algiers region, and that in order to help geotechnical engineer to predict the values of this parameters from dry density considering this latter an account of the easiest calculated properties in the laboratory. More than 700 samples have been collected; over 120 geotechnical projects have been done in the Algiers area to be used in this study.
Cuvinte cheie/Key words: dry density, correlation, geotechnical parameters, statistical study, clay
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