Autoři
Kuklík, P.; Brouček, M.; Kopáčková, M.
Publikováno v
Structural Engineering and Mechanics. 2009, 33(5), 635-647. ISSN 1225-4568.
Rok
2009
Anotace
For the calculation of foundation settlement it is recommended to take into account so called influence zone inside the subsoil bellow the foundation structure. Influence zone inside the subsoil is the region where the load has a substantial influence on the deformation of the soil skeleton. The soil skeleton is pre-consolidated or over consolidated due to the original geostatic stress state. An excavation changes the original geostatic stress state and it creates the space for the load transferred from upper structure. The theory of elastic layer in Westergard manner is selected for the vertical stress calculation. The depth of influence zone is calculated from the equality of the original geostatic stress and the new geostatic stress due to excavation combined with the vertical stress from the upper structure. Two close formulas are presented for the influence zone calculation.
Autoři
Brouček, M.; Kuklík, P.
Publikováno v
In: Proceedings of GEO - CHIANGMAI 2008: An international Conference on Geotechnical Engineering. Singapore: CI-PREMIERE PTE LTD, 2008. pp. 141-146. ISBN 978-981-08-0415-2.
Rok
2008
Anotace
The paper presents the description of behaviour of sandy soils subjected to relatively high hydraulic gradients based on experimental results. The influences of all major process, such as piping, suction elimination or preferential ways creations were tested. It describes the requirements on the new constitutive equation necessary for the description of the soils behaviour under certain conditions. The conclusions challenge some of the traditional points of view on the problems of soil degradation. All specimens have been obtained from the area of lately destructed buildings (due to problems with subsoil) or very close to it.