Cross validation of geotechnical and geophysical site characterization methods. Near surface data from selected accelerometric stations in Crete (Greece)

C. Loupasakis, P. Tsangaratos, D. Rozos, Th Rondoyianni, A. Vafidis, G. Kritikakis, M. Steiakakis, Z. Agioutantis, A. Savvaidis, P. Soupios, I. Papadopoulos, N. Papadopoulos, A. Sarris, M. D. Mangriotis, U. Dikmen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

The specification of the near surface ground conditions is highly important for the design of civil constructions. These conditions determine primarily the ability of the foundation formations to bear loads, the stress - strain relations and the corresponding settlements, as well as the soil amplification and corresponding peak ground motion in case of dynamic loading. The static and dynamic geotechnical parameters as well as the ground-type/soil-category can be determined by combining geotechnical and geophysical methods, such as engineering geological surface mapping, geotechnical drilling, in situ and laboratory testing and geophysical investigations. The above mentioned methods were combined, through the Thalis "Geo-Characterization" project, for the site characterization in selected sites of the Hellenic Accelerometric Network (HAN) in the area of Crete Island. The combination of the geotechnical and geophysical methods in thirteen (13) sites provided sufficient information about their limitations, setting up the minimum tests requirements in relation to the type of the geological formations. The reduced accuracy of the surface mapping in urban sites, the uncertainties introduced by the geophysical survey in sites with complex geology and the 1D data provided by the geotechnical drills are some of the causes affecting the right order and the quantity of the necessary investigation methods. Through this study the gradual improvement on the accuracy of site characterization data is going to be presented by providing characteristic examples from a total number of thirteen sites. Selected examples present sufficiently the ability, the limitations and the right order of the investigation methods.

Original languageEnglish
Title of host publicationThird International Conference on Remote Sensing and Geoinformation of the Environment, RSCy 2015
EditorsSilas Michaelides, Diofantos G. Hadjimitsis, Kyriacos Themistocleous, Giorgos Papadavid
ISBN (Electronic)9781628417005
DOIs
StatePublished - 2015
Event3rd International Conference on Remote Sensing and Geoinformation of the Environment, RSCy 2015 - Paphos, Cyprus
Duration: Mar 16 2015Mar 19 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9535
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference3rd International Conference on Remote Sensing and Geoinformation of the Environment, RSCy 2015
Country/TerritoryCyprus
CityPaphos
Period3/16/153/19/15

Bibliographical note

Publisher Copyright:
© 2015 Copyright SPIE.

Keywords

  • Crete Island
  • Geophysical Survey
  • Geotechnical Study
  • Site Characterization
  • geotechnical drilling

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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