Foundation Studies in a Fault Zone and a Steep Valley Slopeby James L. Kaufman, Mueser Rutledge Consulting Engineers, New York, United States,
Alfred H. Brand, Mueser Rutledge Consulting Engineers, New York, United States,
Document Type: Proceeding Paper
Part of: Detection of and Construction at the Soil/Rock Interface
Discussion: Hamel James V. (See full record)
This paper presents two case histories which illustrate unique problems in defining the character of rock for support of structures. The first case study concerns a conventional building constructed on a site where poor subsurface information existed at the time of design. As a result, a conservative design was adopted. As construction proceeded, the design was modified based on the quality of the rock exposed. This type of construction required full-time inspection by a competent engineer who could make field decisions. The second case study is for a project which was recognized to be a difficult foundation problem. The project was a bridge with large spans and heavy loads. The site was difficult because it included the steep slopes of a deep valley. The engineers had a free hand in developing a foundation exploration program. The initial exploration defined the general site characteristics. A second phase investigation explored the individual pier and abutment foundation areas for the proposed bridge.
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