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ABSTRACT
Technical Paper by A. Edinçliler and E. Güler
GEOTEXTILE-REINFORCED EMBANKMENTS ON SOFT CLAYS - EFFECTS OF A FOUNDATION SOIL CRUST STRENGTHENED BY LIME DIFFUSION
ABSTRACT: This paper presents the results of a study of the effects of a lime crust in the foundation soil, obtained by lime diffusion, on the performance of nonwoven geotextile-reinforced embankments. The study consists of laboratory model tests to simulate failure mechanisms during the construction and lifetime of embankments. A 1/100-scale model of the embankment was constructed. Lime was spread over the foundation soils to increase the shear strength of the soil through lime diffusion. In the laboratory experiments, vertical and horizontal deformations of the geotextile were recorded. Spreading of lime reduced the water content of the clay in the crust layer. It was observed that crust formation using lime diffusion increased the shear strength of the foundation soil thereby allowing the soil to carry larger loads. The soil was capable of carrying loads up to five times greater than that of the untreated soil. It was found that the shear strength increase is dependent on the quantity of lime added, temperature, and curing time.
KEYWORDS: Reinforced embankment, Geosynthetic, Geotextile, Lime diffusion, Soft clay, Shear strength.
Technical Paper by Liliana Roşculeţ, Valeriu Tabără
INVESTIGATIONS CONCERNING SOME COTTON SPECIES BEHAVIOUR (GOSSYPIUM HIRSUTUM) IN TIMISOARA WEATHER CONDITIONS IN THE YEAR 2008
ABSTRACT The main purpose of the present work is to emphasize the behaviour of three cotton species (Marismas, Coko and Canada), from Greece and Canada, but in Timisoara weather conditions. The experimental field placed into a plane microrelief with a large area hollow, on a sol of cambic chernozem type. Bifactorial experience was placed in the field after the subdivided parcels method. The established experimental factors were: factor A – agrofund (a1- N0P0K0, a2- N30P30K30, a3-
Technical Paper by A. Edinçliler and E. Güler
GEOTEXTILE-REINFORCED EMBANKMENTS ON SOFT CLAYS - EFFECTS OF A FOUNDATION SOIL CRUST STRENGTHENED BY LIME DIFFUSION
ABSTRACT: This paper presents the results of a study of the effects of a lime crust in the foundation soil, obtained by lime diffusion, on the performance of nonwoven geotextile-reinforced embankments. The study consists of laboratory model tests to simulate failure mechanisms during the construction and lifetime of embankments. A 1/100-scale model of the embankment was constructed. Lime was spread over the foundation soils to increase the shear strength of the soil through lime diffusion. In the laboratory experiments, vertical and horizontal deformations of the geotextile were recorded. Spreading of lime reduced the water content of the clay in the crust layer. It was observed that crust formation using lime diffusion increased the shear strength of the foundation soil thereby allowing the soil to carry larger loads. The soil was capable of carrying loads up to five times greater than that of the untreated soil. It was found that the shear strength increase is dependent on the quantity of lime added, temperature, and curing time.
KEYWORDS: Reinforced embankment, Geosynthetic, Geotextile, Lime diffusion, Soft clay, Shear strength.
Technical Paper by Liliana Roşculeţ, Valeriu Tabără
INVESTIGATIONS CONCERNING SOME COTTON SPECIES BEHAVIOUR (GOSSYPIUM HIRSUTUM) IN TIMISOARA WEATHER CONDITIONS IN THE YEAR 2008
ABSTRACT The main purpose of the present work is to emphasize the behaviour of three cotton species (Marismas, Coko and Canada), from Greece and Canada, but in Timisoara weather conditions. The experimental field placed into a plane microrelief with a large area hollow, on a sol of cambic chernozem type. Bifactorial experience was placed in the field after the subdivided parcels method. The established experimental factors were: factor A – agrofund (a1- N0P0K0, a2- N30P30K30, a3-