Typologie inženýrskogeologických charakteristik základových půd Ostravské pánve.

Abstract

This thesis deals with the typology of the engineering-geological characteristics of foundation soils in the Ostrava basin. There mostly occur the Quaternary loess and fluvial sediments as well as the Pre-Quaternary Neogene deposits. The anthropogenic, deluvial, glacial sediments and deposits of Carboniferous represent a minor extent. 10 658 studied samples is recorded in the newly created database. These samples came from the 6 131 archive exploratory wells. Physical-mechanical characteristics of foundation soils were statistically evaluated – primarily according to the classes of soils and next according to genetic origin and location of the engineering-geological zones. The fine-grained soil dominates at all data sets (70.8% of all studied samples). The physical-mechanical characteristics for individual classes of foundation soils mostly correspond with some other expert works. A part of the thesis is also the comparison of studied values of characteristics with the respected Standard characteristics according to CSN 73 1001 (Foundations of buildings. Foundation soils under flat foundation). The local characteristics were created for some classes of foundation soils with the highest number of samples. These are classes F6 (CL, CI), F8 (CH, CV), F4 (CS) and G3 (G-F), and for engineering-geology environment which is determine according to the genetic origin and according to engineering-geological zones with the greatest planar extension with large sorted soils (lower environment heterogeneity) such as zone of polygenetic loess sediments Lp or the foundation soils of Neogene age.