Analysis of Soil Movement around a Deep Excavation

by Chin-Yung Chang, (A.M.ASCE), Soils Engr.; Materials Res. & Development, Inc., Woodward, Clyde and Associates, Oakland, CA,
James M. Duncan, (A.M.ASCE), Assoc. Prof. of Civ. Engrg.; Univ. of California, Berkeley, CA,

Serial Information: Journal of the Soil Mechanics and Foundations Division, 1970, Vol. 96, Issue 5, Pg. 1655-1681

Document Type: Journal Paper


The investigation was performed to study soil movements around the 160-ft deep excavation for Buena Vista Pumping Plant in southern California. The calculated movements were compared with the observed movements around the excavation. The study described to calculate soil movements consists of two parts: the first involved conducting laboratory tests on undisturbed soil specimens to determine the strength and nonlinear properties of the soil around the excavation, and the second involved performing finite element analyses using the nonlinear soil properties to calculate soil movements and stresses at the end of excavation. The results of these analyses were found to agree well with the observed behavior of the excavation, with regard to both the magnitude of soil movements and the development of regions of local failure.

Subject Headings: Soil strength | Soil stress | Soil analysis | Laboratory tests | Excavation | Pumping stations | Nonlinear analysis | Finite element method | California | United States

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