Consolidation Analyses of Greater Cincinnati Soils

Download or read book Consolidation Analyses of Greater Cincinnati Soils written by Nishant Dayal and published by . This book was released on 2006 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: The compression analysis of argillaceous material under a proposed superstructure is one of the primary tasks required of a geotechnical engineer. The accuracy of such an analysis is dubious in the absence of proper geotechnical investigation. A proper geotechnical investigation involves site reconnaissance, determination of subsurface conditions, in situ and laboratory tests, and settlement monitoring, if required. This research fulfills several objectives, i.e. analyses of primary consolidation, proposes new correlations, and compares observed and predicted values of settlement. The current paper introduces several new correlations between the compression index and soil parameters such as natural water content, initial void ratio, liquid limit, plasticity index, specific gravity of soil solids, and dry unit weight for the soils of Greater Cincinnati based on regression analysis. Previously available correlations are also analyzed. Most of the new equations obtained show statistical improvement over their predecessors. The data used to obtain these new correlations were provided by local consulting firms including H.C. Nutting Company and Thelen Associates, as well as the Ohio Department of Transportation. Several case studies are presented which compare predicted settlements (by local engineers) and measured settlements due to consolidation of clays. This work then validates the new equations. These case studies are based on project reports provided by H.C. Nutting Company and are intended to help local engineers in predicting consolidation settlements more accurately.