Soils Engineering for Wells Project

by Harris H. Burke, (F.ASCE), Manager of Soils Engineer; Hydro. and Transp. Div., Bechtel Inc., San Francisco, CA,

Serial Information: Journal of the Power Division, 1971, Vol. 97, Issue 2, Pg. 317-333

Document Type: Journal Paper


The influence of the foundation conditions on the design and construction of the Well Project are described. Extensive field investigations indicated extremely pervious overburden materials on the west terrace which strongly influenced the development of the Hydrocombine structure and the dewatering and water control measures. Slurry cutoffs were used for both temporary and permanent work. A high sheet pile cofferdam closed the end of the Hydrocombine excavation. Because of the height, it was necessary to load and unload the cofferdam cells as the river rose and fell. The east embankment, originally designed for a slurry cutoff through pervious foundation, was modified during construction because of erosion of the river bottom; a major portion of the embankment was placed by under water methods.

Subject Headings: Foundation design | Foundation construction | Field tests | Slurries | Cofferdams | High-rise buildings | Hydraulic design | Underwater foundations

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