University of Natural Resources and Life Sciences, Vienna (BOKU) - Research portal
Gewählte Master / Diploma Thesis:
Lucas Putz
(2021):
Experimentelle Untersuchung zur Bodenverbesserung mittels Kalkzugabe.
Master / Diploma Thesis - Institut für Geotechnik (IGT),
BOKU-Universität für Bodenkultur,
pp 146.
UB BOKU
obvsg
- Abstract:
- The stabilization of slopes by resource-friendly methods is an interesting research topic. In practice, soil improvement by adding lime is a widely used method. The soil properties are modified by lime to fulfil the construction requirement on soil. KRISMER has been working has been working on the stabilization of slopes and embankments for over 30 years and is internationally active in this field. In cooperation with the company KRISMER and with the support of the company PORR, direct shear tests and large-scale direct shear tests on lime modified soils were carried out. Two types of soil with different lime content are considered, i.e. a cohesive soil (silty fine sand; fS, mgU) and a coarse-grained soil (sandy gravel; gmG, fms) from the Vienna area. These soils are common as excavation material in construction pits. Our tests show the increase of shear strength due to the addition of hydrated lime. The test results are evaluated and interpreted. The test results may serve as characteristic values for the soil improvement with lime for slope stabilization. The focus here is on the shear parameters, i.e. cohesion c and friction angle φ. However, in order to use such characteristic values in practice, further tests with other soil types with different water contents, load levels, densities and lime content levels are required. Keywords: soil improvement, slope stabilization, hydrated lime, direct shear test
- Beurteilende*r: Wu Wei