Joint orientation and characteristics as observed in a trench excavated near TA-3 and a basement excavated at TA-55
Author(s) -
W.D. Purtymun,
E. W. Koenig,
Troy A. Morgan,
E. Sagon
Publication year - 1995
Publication title -
osti oai (u.s. department of energy office of scientific and technical information)
Language(s) - English
Resource type - Reports
DOI - 10.2172/111936
Subject(s) - geology , trench , joint (building) , excavation , pebble , basement , geotechnical engineering , mining engineering , shrinkage , geochemistry , archaeology , geomorphology , materials science , engineering , composite material , layer (electronics) , structural engineering , history
Walls of excavations in the Bandelier Tuff for pipelines and foundations for structures provide excellent areas to determine the orientation (strike and dip) and characteristics of the joints (frequency, width, and type of material filling the joint). Joints or fractures are commonly associated with structural adjustments such as faulting; however, joints formed in the tuff mainly result from the shrinkage of the ash-flow tuff as it cools. The presence of faults can restrict the siting of buildings or structures. In waste disposal operations, open joints can be pathways for the transport of contaminants
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