DBPapers
DOI: 10.5593/SGEM2014/B12/S2.009

ANALYSIS OF THE FOUNDATION SOLUTIONS FOR AN ASSEMBLY OF TALL BUILDINGS

A. Ciopec, L. Roman, C. Costescu
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-08-7 / ISSN 1314-2704, June 19-25, 2014, Book 1, Vol. 2, 63-70 pp

ABSTRACT
Realization of some tall buildings that transmit loads to the foundation ground through a foundation mat has as consequence the formation of some deep active zones below the base of the buildings. These active zones lead to the appearance of significant settlements of the foundation ground, respectively of the buildings. In the case when in their neighbourhood will be realized new similar buildings, the overlap of the active zones will produce differentiate settlements not only to the existent building, but also to the new building. This differential settlement will produce a rotation of the foundation mat, respectively a lateral displacement of the buildings, which for a 10 storey building can reach 5-10 cm at the top. To eliminate or to reduce this risk, in the paper will be analyzed the foundation solution using a pile foundation system for the new building. In this way the active zone of the new building will be placed at a greater depth, respectively downwards from the piles tip. So, it will be avoided the overlap of the active zones of both buildings.

Keywords:tall building, foundation mat, bearing capacity, settlement, pile foundation