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Research Article| January 01, 1996 Support of Underground Excavations in Hard Rock JOHN COGAN JOHN COGAN Morrison Knudsen Corporation, One Market Plaza, Stewart Tower, Suite 400, San Francisco, CA 94105 Search for other works by this author on: GSW Google Scholar Environmental Support of Underground Excavations in Hard Rock. Environmental ; II (4): 610–611. doi: https://doi.org/10.2113/gseegeosci.II.4.610 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyEnvironmental & Engineering Geoscience Search Advanced Search This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
John Cogan (Sun,) studied this question.