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Rock slope stability analysis along the North Carolina section of the Blue Ridge Parkway: Using a geographic information system (GIS) to integrate site data and digital geologic maps

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Abstract

In 2008, the North Carolina Geological Survey (NCGS) completed a five-year geologic and geohazards inventory of the 406-km long North Carolina segment of the Blue Ridge Parkway (BRP). The ArcGIS™ format deliverables for rock slopes include a slope movement and slope movement deposit database and maps and site-specific rock slope stability assessments at 158 locations. Database entries for known and potential rock slope failures include: location data, failure modes and dimensions, activity dates and levels, structural and lithologic data, the occurrence of sulfide minerals and acid-producing potential test results. Rock slope stability assessments include photographs of the rock cuts and show locations and orientations of rock data, seepage zones, and kinematic stability analyses. Assigned preliminary geologic hazard ratings of low, moderate and high indicate the generalized relative probability of rock fall and/or rock slide activity at a given location. Statistics compiled based on the database indicate some general patterns within the data. This information provides the National Park Service with tools that can aid in emergency preparedness, and in budgeting mitigation, maintenance and repair measures.

Suggested Citation

Latham, R., Wooten, R., Cattanach, B., Merschat, C., and Bozdog, G., 2009, Rock slope stability analysis along the North Carolina section of the Blue Ridge Parkway: Using a geographic information system (GIS) to integrate site data and digital geologic maps, in 43rd U.S. Rock Mechanics Symposium and 4th U.S.-Canada Rock Mechanics Symposium, Asheville, NC, June 28-July 1, 2009.

Publication type Conference Paper
Publication Subtype Conference Paper
Title Rock slope stability analysis along the North Carolina section of the Blue Ridge Parkway: Using a geographic information system (GIS) to integrate site data and digital geologic maps
Year Published 2009
Language English
Larger Work Type Book
Larger Work Subtype Conference publication
Larger Work Title 43rd U.S. Rock Mechanics Symposium and 4th U.S.-Canada Rock Mechanics Symposium
Conference Title 43rd U.S. Rock Mechanics Symposium and 4th U.S.-Canada Rock Mechanics Symposium
Conference Location Asheville, NC
Conference Date June 28-July 1, 2009
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