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Book Chapter

Swelling of Rocks in Faults in the Roberts Tunnel, Colorado

By
E. E. Wahlstrom
E. E. Wahlstrom
Professor of Geology
,
University of Colorado
,
Boulder, Colo.
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C. S. Robinson
C. S. Robinson
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T. C. Nichols
T. C. Nichols
Engineering Geologist
,
U. S. Geological Survey
,
Denver, Colo.
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Published:
January 01, 1968

Abstract

Samples of crushed and altered rock associated with faults were collected during the construction of the Roberts tunnel, Colorado, and were tested during a postconstruction study of the geology of the tunnel. The swelling properties and the mineralogy were determined and correlated with rock type and rock alteration. It was concluded that use of such tests at the time of construction could have aided in identifying potentially troublesome ground. Also, such tests, used in conjunction with surface examinations prior to the construction of a tunnel, would have indicated if swelling ground would be encountered during construction, and the order of magnitude of the swelling.

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Contents

GSA Engineering Geology Case Histories

Engineering Geology Case Histories Number 6

George A. Kiersch
George A. Kiersch
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Geological Society of America
Volume
6
ISBN electronic:
9780813759319
Publication date:
January 01, 1968

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