Influence of the Soil Genesis on Physical and Mechanical Properties

Abstract

The paper deals with the influence of soil genesis on the physical-mechanical properties. The presented case study was conducted in the region of the Ostrava Basin where there is a varied genetic composition of the Quaternary geological structure on the underlying Neogeneous sediments which are sediments of analogous granulometry but different genesis. In this study, 7827 soil samples of an eolian, fluvial, glacial, and deluvial origin and their laboratory analyses results were used. The study identified different values in certain cases, mostly in coarser-grained foundation soils, such as sandy loam S4 (MS) and clayey sand F4 (CS). The soils of the fluvial origin manifest different values than other genetic types. Next, based on regression analyses, dependence was proved neither on the deposition depth (depth of samples) nor from the point of view of the individual foundation soil classes or the genetic types. The contribution of the paper is to point at the influence of genesis on the foundation soil properties so that engineering geologists and geotechnicians pay more attention to the genesis during engineering-geological and geotechnical investigations.

Defects of the building and its remediation – Case study: Elementary school Vodňany

“…To ensure the perfect use of the entrance hall of the Primary School and the Gymnázium Vodnany Branch -Bavorovska Street, Bavorovska 1046, Vodnany, the following modifications are necessary: see point [1][2][3][4][5] Qualitative assumptions for the construction are determined by these documents in the sequence of their continuity: -Object documentation with corrective measures, CSN, if specifically in the project or PD as a binding technical regulation, recommended measures and technological procedures of manufacturers and suppliers of building materials and by profession.…”

“…Land becomes scarce with the growth of cities, and it often becomes necessary to construct buildings and other structures on the sites with unfavourable conditions. [1] Our task was to find out the state and defects of the building structures in the school premises -Primary School and Gymnasium Vodnany Branch -Bavorovska Street, Bavorovska 1046, Vodnany. In particular, focus on the extent of defects and damage, possible disasters, the correctness of the execution of the construction work in accordance with the general technical requirements for construction and technical regulations according to individual manufacturers, etc.…”

Properties of the Loess Sediments in Ostrava Region (Czech Republic) and Comparison with Some Other Loess Sediments

“…The statistical evaluation was implemented in Minitab application, where verification of normal data set distribution was carried out applying Anderson-Darling test normality combined with histograms and exclusion of outlier values by means of values outside the lower outlier limits [DVH = Q 1 − 1,5( Q 3 − Q 1 )] and upper outlier limits [HVH = Q 1 + 1,5( Q 3 − Q 1 )] of the set (Pavlík [ 24 ]), where Q 1 is the first quartile and Q 3 is the quartile [ 17 ]. Intervals of values and average values of physical mechanical properties were evaluated by means of their descriptive statistics.…”

“…They may have reddish streaks and may contain silty admixture and laminas or interbeds of fine-grained sands. Next, continental sedimentation occurred passing into the Quaternary [ 15 , 17 ].…”