Fill‐Slope Failure and Repair
Publication: Journal of Performance of Constructed Facilities
Volume 6, Issue 3
Abstract
The paper describes the failure and repair of a fill slope at Caminito Muirfield Street, La Jolla, California. There were several factors that contributed to the movement of the fill slope and the damage to the condominiums. One factor is that the condominiums were built very close to the top of slope, and when there was deformation due to slope creep, it damaged the rear of the condominiums. Another factor in the slope movement was the presence of topsoil, which was left in place during grading operations. Topsoil is an undesirable material because of both its low shear strength and the presence of organics, such as roots, which will decompose with time. The repair of the fill slope consisted of the complete removal of the slope failure mass and the construction of a fill buttress. A key was excavated into bedrock and the buttress was constructed using decomposed granite fill and layers of geogrid. The buttress was designed and constructed so that the final factor of safety for the rebuilt slope was at least 1.5.
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Information
Published In
Journal of Performance of Constructed Facilities
Volume 6 • Issue 3 • August 1992
Pages: 161 - 168
Copyright
Copyright © 1992 ASCE.
History
Published online: Aug 1, 1992
Published in print: Aug 1992
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