Abstract
The embedded cantilever retaining walls are often required for excavation to construct the underground facilities. Significant numbers of numerical and experimental studies have been performed to understand the behavior of embedded cantilever retaining walls under static condition. However, very limited studies have been conducted on the behavior of embedded retaining walls under seismic condition. In this paper, the behavior of a small scale model embedded cantilever retaining wall in dry and saturated sand under seismic loading condition is investigated by shake table tests in the laboratory and numerically using software FLAC2D. The embedded cantilever walls are subjected to sinusoidal dynamic motions. The behaviors of the cantilever walls in terms of lateral displacement and bending moment are studied with the variation of the two important design parameters, peak amplitude of the base motions and excavation depth. The variation of the pore water pressures within the sand is also observed in the cases of saturated sand. The maximum lateral displacement of a cantilever wall due to seismic loading is below 1% of the total height of the wall in dry sand, but in case of saturated sand, it can go up to 12.75% of the total height of the wall.
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The funding for this study vide Grant No. SR/S3/MERC-0029/2011 of SERB, Department of Science and Technology, New Delhi (India) is gratefully acknowledged.
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Konai, S., Sengupta, A. & Deb, K. Seismic behavior of cantilever wall embedded in dry and saturated sand. Front. Struct. Civ. Eng. 14, 690–705 (2020). https://doi.org/10.1007/s11709-020-0615-6
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DOI: https://doi.org/10.1007/s11709-020-0615-6