AFAM, 2011 Kopernik Toplantısı’ nda…

Yer Bilimleri, İklim Bilimleri, Sismoloji, Doğal Afetler, Okyanus Bilimleri, Zemin Sistem Bilimleri konularında, Dünya`nın en önemli sempozyumlarından birisi olan, Avusturya Viyana` da gerçekleşecek olan 2011 Kopernik Toplantısı` na;

İstanbul Aydın Üniversitesi AFAM Başkanı Yrd.Doç.Dr. Kubilay KAPTAN, üniversitemizi ve ülkemizi temsilen oturum başkanı ve konuşmacı olarak katılacaktır.

Session SSS  5.2

384-28-1

ID : EGU2011 – 320

Allowable   Bearing   Pressure  in

Soils  and Rocks  through  Seismic

Wave  Velocities

Abstract

Based on a variety of case histories of site investigations, including extensive bore hole data, laboratory testing and geophysical prospecting at more than 550 construction sites, an empirical formulation is proposed for the rapid determination of allowable bearing pressure of shallow foundations in soils and rocks. The proposed expression corroborates consistently with the results of the classical theory and is proven to be rapid, and reliable. Plate load tests have been also carried out at three different sites, in order to further confirm the validity of the proposed method. It consists of only two soil parameters, namely, the in situ measured shear wave velocity and the unit weight. The unit weight may be also determined with sufficient accuracy, by means of other empirical expressions proposed, using P or S – wave velocities. It is indicated that once the shear and P-wave velocities are measured in situ by an appropriate geophysical survey, the allowable bearing pressure as well as the coefficient of subgrade reaction and many other elasticity parameters may be determined rapidly and reliably.

Keywords : shear wave velocity, shallow foundations, allowable bearing  pressure, dynamic  technique, soils and rocks.