Rock mass classification system : transition from RMR to GSI.

Details

• Creators:
  Masada, Teruhisa ; Han, Xiao
• Corporate Creators:
  Ohio University. Ohio Research Institute for Transportation and the Environment (ORITE)
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  • Rocks
  • Bridge foundations
  • Bridge design
  • Ratings
  • Literature reviews
  • Statistical analysis
  • Properties of materials
  • Laboratory tests
• Publication/ Report Number:
  FHWA/OH-2013/11
• Resource Type:
  Tech Report
• Geographical Coverage:
  Ohio
• Corporate Publisher:
  Ohio. Department of Transportation. Office of Statewide Planning and Research
• Abstract:
  The AASHTO LRFD Bridge Design Specifications is expected to replace the rock mass rating ; (RMR) system with the Geological Strength Index (GSI) system for classifying and estimating ; engineering properties of rock masses. This transition is motivated by the fact that some ; difficulties were experienced with RMR in many highway bridge projects. A study was carried out ; to determine if GSI is applicable to rock materials found in Ohio. To meet this primary objective, a ; literature review was conducted, many rock samples were tested in the lab, an extensive rock ; property data set was assembled, and statistical/computation analysis of the data set was ; performed. The outcome showed that GSI is applicable to rock materials in Ohio.
• Format:
  PDF
• Funding:
  SJN 134693
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/27182/dot_27182_DS1.pdf
• File Type:
  [PDF - 3.25 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:deebf4132d7166571178dcab39f80c4057bb779c74a58a7af7054066e8fbe026c4d9f68b3710b5fc836269f280bcaa3ddd8f7c6aad4f73d01a4c8718611459d7