A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
In February 1996, a landslide occurred on a busy double-track railroad mainline near Castle Rock (USA), burying the tracks under 1.5 to 3 m of mud and another 1.5 to 3 m of tangled, uprooted trees. For a slope reconstruction, site conditions ruled out traditional solutions. The project contractor had to devise some unconventional construction techniques for dealing with the challenging site conditions: weak soils, tricky slopes, tight access, rail traffic, and a short deadline. The engineering consulting firm recommended improving the slope resistance to weathering by installing a fully-engineered geocellular system filled with coarse aggregate. The solution was affordable and would discourage plant growth. It would reduce vegetation maintenance costs and root loosening of soils. Flow of rain down the slope within the geocells and aggregate would reduce the rate at which water entered the drainage system at the bottom of the slopes. In the article, the engineering strategy and design together with the installation techniques are described. Eighteen months after the project was completed, soil in the geocell protected area were moist, but not wet, loose to a depth of about 2.5 cm and medium stiff for another 5 to 8 cm. Below that, the soils remain firm and unweathered.
In February 1996, a landslide occurred on a busy double-track railroad mainline near Castle Rock (USA), burying the tracks under 1.5 to 3 m of mud and another 1.5 to 3 m of tangled, uprooted trees. For a slope reconstruction, site conditions ruled out traditional solutions. The project contractor had to devise some unconventional construction techniques for dealing with the challenging site conditions: weak soils, tricky slopes, tight access, rail traffic, and a short deadline. The engineering consulting firm recommended improving the slope resistance to weathering by installing a fully-engineered geocellular system filled with coarse aggregate. The solution was affordable and would discourage plant growth. It would reduce vegetation maintenance costs and root loosening of soils. Flow of rain down the slope within the geocells and aggregate would reduce the rate at which water entered the drainage system at the bottom of the slopes. In the article, the engineering strategy and design together with the installation techniques are described. Eighteen months after the project was completed, soil in the geocell protected area were moist, but not wet, loose to a depth of about 2.5 cm and medium stiff for another 5 to 8 cm. Below that, the soils remain firm and unweathered.
Weatherizing steep slopes with geocells
Schutz von steilen Böschungen gegen Wettereinflüsse mit Geozellen
Northcutt, G. (author)
2003
4 Seiten, 5 Bilder
Article (Journal)
English
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