Transcription of TUNNEL DESIGN BY ROCK MASS CLASSIFICATIONS
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TUNNEL DESIGN BY ROCK MASS CLASSIFICATIONS
: OTIC FILE COPY IECHNICAL REPORT GL-79-19 TUNNEL DESIGN BY ROCK mass CLASSIFICATIONSbyZ. T. BieniawskiD-A219 783 Pennsylvania State UniversityDepartment of Mineral EngineeringUniversity Park, Pennsylvania 16802 DTICELECTE3 MAR28 19W-' January 1990 Update of Technical Report GL-79-19 Approved For Public Re;tas,, Distribution UnlimitedIVPrepared for DEPARTMENT OF THE ARMYUS Army Corps of EngineersWashington, DC 20314-1000 Under Contract Nos. DACW39-78-M-3314and DACW39-84-M-1462 Monitored by Geotechnical LaboratoryUS Army Engineer Waterways Experiment StationT3909 Halls Ferry Road, Vicksburg, Mississippi 39180-6199 UnclassifiedSECURITY classification OF THIS PAGEForm ApprovedREPORT DOCUMENTATION PAGE OMB No.
PREFACE This report contains the results of an investigation by Professor Z. T. Bieniawski of The Pennsylvania State University, University Park, PA.
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