Variantní návrh dvoukolejného odstavného tunelu

Abstract

This diploma thesis is focused on line stambling work in complex engeneering – geological conditions. It is issued as alternative proposal of the subway storage excavation in Bacu, the capital of Azerbaijan. The tunel is situated right behind already existing, dredged, station B12 besides beneath a shallow and dense surface buldings. This thesis also discusses the risks during digging in such a these conditions and the possible risk elimination. The practical part of thesis deals with the design variant of the storage tunel excavation, especialy with the surface settlement. The issue is about the excavation variant: with pilot adit, vertical sequence of excavation with rock core left. Vertical sequence of excavation combined with horizontal sequence of exavation. For given varints has been developed exavation process which includes the division of exavation work and the individual process phasing. For verification of the mintage suitability in these conditions was proceded a numerical 2D model for each design. Results of each model were compared and most suitable variant were processed and evaluated in 3D model.