Development of a rockfall hazard rating matrix for the State of Ohio : executive summary report.

Details

• Creators:
  Shakoor, Abdul
• Corporate Creators:
  Kent State University. Dept. of Geology
• Corporate Contributors:
  Ohio. Dept. of Transportation
• Subject/TRT Terms:
  Hazard Analysis Landslide Hazard Analysis--Ohio Landslides Rockslides Rockslides--Ohio
• Publication/ Report Number:
  FHWA/OH-2005/005
• Resource Type:
  Tech Report
• Geographical Coverage:
  Ohio
• Edition:
  Executive summary report.
• Corporate Publisher:
  Kent State University. Dept. of Geology
• Abstract:
  The geology in Ohio is characterized by the
  
  presence of gently dipping, harder, more competent
  
  strata (siltstones, sandstones, limestones) alternating
  
  with softer, less competent strata (claystones,
  
  mudstones, sha les). This type of stratigraphy is
  
  highly susceptible to differential weathering which
  
  results in undercutting of the competent layers by
  
  erosion of the incompetent layers. Undercutting
  
  promotes a variety of slope movements such as
  
  rockfalls, plane failures, and wedge failures that
  
  may not occur otherwise. Many of the slope failures
  
  in Ohio initiate as plane failures and wedge failures
  
  in competent strata at higher elevations and descend
  
  as rockfalls. The frequency and size of these falls
  
  depend upon joint spacing within the competent
  
  unit and the extent by which it has been undercut.
  
  The undercutting- induced failures can be quite
  
  hazardous because of their instantaneous
  
  occurrence, high speed, and occasionally large
  
  volume of rock involved. There are many road cuts
  
  in Ohio, however, where closely jointed rock units
  
  lead to rockfalls without the presence of
  
  undercutting. This study was undertaken to develop
  
  a rating matrix that could be used to rank order the
  
  slopes in terms of their hazard potential with respect
  
  to rockfalls.
  
  
• Format:
  PDF
• Funding:
  14782(0)
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:9194c7cedb6a42f696b525029b63f31aa2d43c4bbbfd40b299ef9be394dc7579
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/18223/dot_18223_DS1.pdf
• File Type:
  [PDF - 384.67 KB ]