00233641

Component

http://onlinepubs.trb.org...ubs/hrr/1963/17/17-005.pdf

SCIENTIFIC METHODS ARE BEING DEVELOPED AND EVALUATED TO MEASURE QUANTITATIVELY THE EFFECT OF ROCK STRUCTURE, STRESS, STRENGTH, AND GROUND WATER ON SLOPE STABILITY. STRESSES ARE BEING DETERMINED FROM STRAIN OR STRESS-RELIEF MEASUREMENTS MADE WITH A BOREHOLE DEFORMATION GAGE DEVELOPED BY THE U.S. BUREAU OF MINES OR FROM PIEZOMETER MEASUREMENTS. THE STRENGTH ANALYSES ARE BASED ON METICULOUS STUDY OF ROCK STRUCTURE AND STRENGTH, AND THE EFFECT OF ROCK STRUCTURE AND MOISTURE ON THE STRENGTH OF A SLOPE. SUPERFICIAL STUDY OF STRUCTURE IS BEING SUPPLEMENTED BY OBSERVATIONS INSIDE BOREHOLES WITH CAMERAS. THE SLOPE STRENGTH IS BEING INVESTIGATED BY LABORATORY TESTING OF DRILL CORES FROM THE STUDY AREA OF THE KIMBLEY PIT OF THE KENNECOTT COPPER CORP IN RUTH, NEVADA. THESE TESTS ARE TO INVESTIGATE THE STRENGTH OF THE ROCK FORMATIONS, THE FRICTIONAL RESISTANCE ALONG FRACTURES OR FRACTURED ZONES IN THE ROCK, AND THE EFFECT OF MOISTURE ON STRENGTH. THE RESEARCH WAS CONDUCTED TO DETECT INSTABILITY BEFORE FAILURE DEVELOPS, AND TO PREDETERMINE PRECISE, SAFE-MAXIMUM SLOPE ANGLES WITH KNOWN SAFETY FACTORS.

No 17, Pp43-52, 9FIG, 5REF Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01418551

1963

Highway Research Record

Angularity; Boreholes; Deformation; Development; Forecasting; Groundwater; Measurement; Measuring instruments; Methodology; Moisture content; Piezometers; Quantitative analysis; Rock mechanics; Rocks; Safety factors; Scientific method; Slope stability; Slopes; Stability (Mechanics); Strain measurement; Strength of materials; Stress relieving; Stresses; Structural analysis; Structures

Angles

Bridges and other structures; Geotechnology; Highways; Research; Safety and Human Factors

TRIS, TRB

Dec 12 1994 12:00AM

• DESIGN OF ROCK SLOPES
• EVALUATION OF ROCKFALL AND ITS CONTROL
• SLOPE FAILURES IN FOLIATED ROCKS, BUTTE COUNTY, CALIFORNIA
• THE PEACE RIVER HIGHWAY BRIDGE--A FAILURE IN SOFT SHALES