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Three-Dimensional Site Characterization Model Using Artificial Neural Networks

Sitharam, TG and Samui, P (2007) Three-Dimensional Site Characterization Model Using Artificial Neural Networks. In: 13th Asian Regional Conf. on Soil Mech. and Geotechnical Engg., Kolkata, 2007, Kolkata.

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This research is designed to develop a new technique for site characterization in a three-dimensional domain. Site characterization is a fundamental task in geotechnical engineering practice, as well as a very challenging process, with the ultimate goal of estimating soil properties based on limited tests at any half-space subsurface point in a site.In this research, the sandy site at the Texas A&M University's National Geotechnical Experimentation Site is selected as an example to develop the new technique for site characterization, which is based on Artificial Neural Networks (ANN) technology. In this study, a sequential approach is used to demonstrate the applicability of ANN to site characterization. To verify its robustness, the proposed new technique is compared with other commonly used approaches for site characterization. In addition, an artificial site is created, wherein soil property values at any half-space point are assumed, and thus the predicted values can compare directly with their corresponding actual values, as a means of validation. Since the three-dimensional model has the capability of estimating the soil property at any location in a site, it could have many potential applications, especially in such case, wherein the soil properties within a zone are of interest rather than at a single point. Examples of soil properties of zonal interest include soil type classification and liquefaction potential evaluation. In this regard, the present study also addresses this type of applications based on a site located in Taiwan, which experienced liquefaction during the 1999 Chi-Chi, Taiwan, Earthquake.

Item Type: Conference Paper
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Date Deposited: 03 Nov 2011 05:41
Last Modified: 03 Nov 2011 05:41
URI: http://eprints.iisc.ac.in/id/eprint/41714

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