Impact of the moisture content in medium sands on CPTU test results
Journal Title: Annals of Warsaw University of Life Sciences – SGGW. Land Reclamation - Year 2016, Vol 48, Issue 3
Abstract
Soils occurring in the soil “active zone” are in contact with the surface and are directly influenced by external factors (mainly climatic changes) that causa variation in their parameters over time. Dynamic and uncontrolled changes of soil properties e.g. due to rainfall and evapotranspiration processes may affect field test results leading to the misinterpretation of the obtained data. This paper presents investigations on the influence of moisture content changes in sandy soils on CPTU results. For this purpose, a field ground model has been constructed and five CPTU tests with a different moisture content of soil were carried out. During the investigations, the tip resistance (qc), friction on sleeve (fs), and pore water pressure (u2) were measured. Moreover, a TDR probe was applied to determine the distribution of the moisture kontent in the studied soil columns. Differences between CPT results obtained in saturated and unsaturated soils have been shown. urthermore, a Simple equation to correct the tip resistance value due to the impact of the degree of saturation has been proposed.
Authors and Affiliations
Łukasz Zawadzki, Marek Bajda
Keywords
Related Articles
- EP ID EP133761
- DOI -
- Views 98
- Downloads 0
Concept of hybrid embankment
An innovative technique which is similar to a natural process, i.e., biogeochemical (carbonate) diagenesis, is proposed to construct a hybrid embankment. In this study, the hybrid embankment is defined as a soil embankme...
Areal variability of the mineral soil cover in a reclaimed soda waste dumping site
This paper provides an analysis of the areal variability of the thickness and selected physical and chemical properties of the mineral cover formed in the process of settling ponds reclamation at the former Krakow Soda P...
Monitorowanie stanu nawierzchni jako podstawa gospodarczej regulacji emisji gazów cieplarnianych
Kompleks drogowy, który obejmuje sieć dróg z ruchem kołowym, służby drogowe, zakłady napraw samochodów, przedsiębiorstwa produkcji paliw i materiałów do remontu dróg, jest ważnym źródłem zanieczyszczenia środowiska, a po...
A study of application the modified chalcedonite for underground water treatment
The paper presents the results of the research on underground water treatment by manganese dioxide modifi ed chalcedonite (the MDMC-3 variety). The tested material was used as the filling of the gravitation filter. Raw wate...
Określenie właściwości mechanicznych gruntu stabilizowanego wapnem hydratyzowanym