Where Does Rock Begin for Three Highway Projects?

by Glenn M. Boyce, Parsons Brinckerhoff Quade &, Douglas, San Francisco, United States,
Lee W. Abramson, Parsons Brinckerhoff Quade &, Douglas, San Francisco, United States,



Document Type: Proceeding Paper

Part of: Detection of and Construction at the Soil/Rock Interface

Abstract: 'Where does rock begin?' was a question raised on three large highway projects in the western United States. The question was successfully answered by a variety of exploration approaches. Each of these case histories is discussed in detail. Attention is provided to the nature of the problem, what methods were used to determine where rock began, how successful the various exploration and testing methods were, and how the problems were solved.

Subject Headings: Highways and roads | Rocks | Rock properties | Detection methods | Highway and road design | Case studies | North America | United States

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