Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Effect of Slope Angle on Seismic Response of Unreinforced and Reinforced Soil Slopes in Shaking Table Tests
Abstract This paper studies the effect of slope angle on the seismic response of unreinforced and reinforced soil slopes through a series of laboratory shaking table tests. Slopes were constructed using clayey sand and geogrids were used for reinforcing the slopes. The slope angle varies from 45°, 60° and 75° in different tests and the quantity and location of reinforcement is varied in different tests. Acceleration of base shaking varies from 0.1 to 0.3 g in the model tests and the frequency of base shaking was 2–10 Hz in different tests. The slope is instrumented with ultrasonic displacement sensors and accelerometers at different elevations. The response of different slopes is compared in terms of the horizontal displacements of the slope and acceleration amplifications measured at different elevations. At all frequency levels and base acceleration conditions, unreinforced slopes showed higher acceleration amplifications and increased displacements with the increase in steepness It was also observed from the test results that increase in steepness of the slope has detrimental effects on both acceleration amplifications and displacement response of unreinforced as well as reinforced model soil slopes.
Effect of Slope Angle on Seismic Response of Unreinforced and Reinforced Soil Slopes in Shaking Table Tests
Abstract This paper studies the effect of slope angle on the seismic response of unreinforced and reinforced soil slopes through a series of laboratory shaking table tests. Slopes were constructed using clayey sand and geogrids were used for reinforcing the slopes. The slope angle varies from 45°, 60° and 75° in different tests and the quantity and location of reinforcement is varied in different tests. Acceleration of base shaking varies from 0.1 to 0.3 g in the model tests and the frequency of base shaking was 2–10 Hz in different tests. The slope is instrumented with ultrasonic displacement sensors and accelerometers at different elevations. The response of different slopes is compared in terms of the horizontal displacements of the slope and acceleration amplifications measured at different elevations. At all frequency levels and base acceleration conditions, unreinforced slopes showed higher acceleration amplifications and increased displacements with the increase in steepness It was also observed from the test results that increase in steepness of the slope has detrimental effects on both acceleration amplifications and displacement response of unreinforced as well as reinforced model soil slopes.
Effect of Slope Angle on Seismic Response of Unreinforced and Reinforced Soil Slopes in Shaking Table Tests
Srilatha, N. (Autor:in) / Latha, G. Madhavi (Autor:in) / Puttappa, C. G. (Autor:in)
Indian Geotechnical Journal ; 47 ; 326-337
11.02.2017
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Effect of frequency on seismic response of reinforced soil slopes in shaking table tests
| Online Contents | 2013