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Browsing by Subject "tills"

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    Item type:Article, Access status: Open Access ,
    O właściwościach gruntów mało spoistych zmieniających się w procesie konsolidacji na podstawie badań pasty gruntowej
    (Wydawnictwa AGH, 2008) Borowczak, Paweł
    Increasingly often, the construction industry is required to erect structures in areas which, until recently, have been avoided due to difficult conditions in which to build the foundation. The expansion of real estate in cities has limited investors' freedom to choose building locations, forcing them to erect structures also on low-strength soils. Organic soils are commonly considered low-strength. Mineral plastic and soft plastic cohesionless soils are also low-strength. The author believes that fully saturated cohesive soils with a plasticity index $I_{p} <$ pose greatest problems in the proper assessment of geotechnical parameters. In the Poznań area, these are unconsolidated Baltic glaciation moraine (ablation) tills. These are classified as silty sands (PN-EN ISO 14688-1:2006, PN-EN ISO 14688-2:2006). It is commonly known that weak soils subjected to static loads undergo consolidation, which leads to greater strength which results in greater subsoil strength. The article discusses the results of studies of the impact of consolidation on changes in plasticity and strength of soil paste prepared from ablation tills.