Použití tryskové injektáže jako základového prvku

Abstract

This thesis describes the jet grouting, it´s methods, technological process and possible use. The paper focuses on concrete examples from practical use in places, where this method of special foundations was used. One example is about mintage of collector in Vodičkova street in Prague 1. Jet grouting provided overburden top heading and sides of the excavation at this place. Repair of hydraulic structure in Všemina is described in the next part of the paper. At this place sealing wall in axis of the dam was built by jet grouting to stop seepage through dam. Last described structure is construction of apartment block in Prague, where jet grouting was used to transfer the load to more bearable lower layers and to firming the soil in the subsoil below the retaining wall. Theoretical calculations of proposal of pillar as a base element are listed at the final part of thesis. These calculations are applied on concrete example. The result is comparison of jet grouting and drilled piles.