Geotechnical characterization of a residual soil profile: the ISC’2 experimental site, FEUP

• Type: Article in International Conference Proceedings Book
• Date: 2004

Authors

António Viana da Fonseca (Author) FEUP; Jorge Carvalho (Author) Other; Cristiana Ferreira (Author) Other; Catarina Sousa (Author) Other; Elisabete Costa (Author) Other; Jaime Santos (Author) Other

Conference proceedings International

Title: 2nd International Conference on Site Characterisation (ISC’ 2)

Pages: 1361-1369

Porto - Portugal, 19 a 22 de setembro de 2004

Indexing

ISI Web of Science

Scientific classification

FOS: Engineering and technology > Other engineering and technologies

CORDIS: Technological sciences

Other information

Abstract (EN): This paper is part of a research project launched by the Faculty of Engineering of the University of Porto (FEUP) with the purpose of implementing an experimental test site on residual (saprolitic) soil from granite. An International Prediction Event (Class A) on the behaviour of bored, CFA and driven piles in this experimental site is being organized by FEUP and by Instituto Superior Tecnico of the Technical University of Lisbon (ISTUTL). A very extensive site characterization has been held, including a large variety of in situ tests. Researchers and designers were invited to deal with this investigation results in order to predict the real response of the pile foundations. The description of the pile loading tests and the discussion of its results are not included in this paper, which will solely describe the site characterization works and the complementary laboratory tests performed prior to the International Prediction Event. Several in-situ testing techniques were used - Penetration tests: SPT and CPTU; Pressure-dilatometer tests: PMT and DMT; Seismic: CrossHole (CH) and Down-Hole (DH) - in order to have a very comprehensive knowledge of the mechanical characteristics of the soil. Undisturbed samples were retrieved and an extensive laboratory testing program was carried out, including oedometric consolidation tests, CKOD triaxial tests using local strain measuring devices and bender-extender elements, as well as resonant column tests. This paper presents and discusses the obtained results, giving emphasis to the correlations encountered between the different tests specific of saprolitic soils with weak relic structures.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9