Theoretical and Experimental Substantiation for Applicability of a Damping Layer in a Foundation Slab Placed on Soil Bed

Abstract

Abstract. Authors present the results of studies of innovative foundation structure. The idea of how to increase the operational quality of foundations and reduce the costs due to rational loading of the soil bed is numerically simulated. It is shown that the bending moment in the foundation slab depends on uneven settlements of the soil bed. It is proposed to stabilize the deformable soil bed by the damping layer placed under the slab footing in the zones with minor settlements. Considered is the concept of the damping layer in the foundation slab placed on the soil bed (DLS). The in-situ test for DLS-clayey bed interaction is described. Given are the results obtained after the experiments for DLS performance. The result of DLS implementation in designing the foundation of the 22-storeyed block of flats is considered. The expediency of DLS in comparison to standard foundations is presented.

Thin-walled shell foundations

“…In geotechnical engineering there is a tendency of using systems with controlled parameters [6][7][8][9][10][11]. One of the possible variants of the foundations for the specified conditions is the strip thin-walled shell foundation [12].…”

Generation of stress-strain state in combined strip pile foundation beds through pressing of soil

“…When erecting different structures, weak underlying soils cause a number of problems in design and construction [1]. To ensure the required non-exceedance of the ultimate limit settlements is challenging under the pressure ranging from 200 to 450 kPa which acts upon the bed in soil conditions composed of alluvial soils with relatively low strength and deformation characteristics.…”