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Zmiana współczynnika filtracji układu piasek średni-geowłóknina K 500

Wojtasik D., Krzywosz Z.

Przegląd Naukowy Inżynieria i Kształtowanie Środowiska

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2005

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Vol. 14, No. 1

169--178

EN

The paper presents the results of laboratory tests carried out in the modified soil-geotextile permeametr (Fig. 1) recommended in ASTM standard D 5101-90. Laboratory tests were performed on nonwoven geotextile K-500 (Tab. 1) and medium sand (Tab. 2). In ftgures 2 and 3 the change in permeability coefficient in soil-geotextile system and soil under different hydraulic gradients are shown. The relationship for the evaluation of the change in coefficient in soil-geotextile system based on the initial values of the permeability coefficient of geotextile and soil as well as hydraulic gradient is proposed.

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Wpływ kolmatacji na współczynnik filtracji układu grunt-geowłóknina

Wojtasik D., Frąk M., Komorowski H.

Przegląd Naukowy Inżynieria i Kształtowanie Środowiska

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2005

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Vol. 14, No. 1

159--168

EN

The paper presents the results of laboratory tests carried out in the modified soiI-geotextile penneameter (Fig. 1) recommended in ASTM standard D 5101-90. Laboratory tests were performed on nonwoven geotextile K-500 (Tab. 1) and slightly clayey sand (Tab. 2). In figures 2 and 3 the change in permeability coefficient in soil-geotextile system for individual zones under different hydraulic gradients are shown. The changes in permeability coefficient in soil-geotextile system are caused by phenomena mechanical (Fig. 4), biological (Fig. 5 and 6 ) and chemical clogging.

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Zmiana współczynnika filtracji w układzie grunt-geowłóknina

Lechowicz Z., Krzywosz Z., Wojtasik D.

Przegląd Naukowy Inżynieria i Kształtowanie Środowiska

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2003

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Vol. 12, No. 2

38--47

EN

The paper presents the results of laboratory tests carried out in the modified soil-geotextile permeameter (Fig. 1) recommended in AST Mstandard D 5101-90. Laboratory tests were performed on nonwoven geotextile K-500 (Tab. 1) and clayey sand (Tab. 2). In Figures 2 and 3 the change in permeability coefficient in soil-geotextile system and soil under different hydraulic gradients are shown. The relationship for the evaluation of the change in permeability coefficient in soil-geotextile system based on the initial values of the permeability coefficient of geotextile and soil as well as hydraulic gradient is proposed.