Rock mass classification system : transition from RMR to GSI.

Masada, Teruhisa; Han, Xiao; Ohio Research Institute for Transportation and the Environment

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Rock mass classification system : transition from RMR to GSI.

2013-11-01
By Masada, Teruhisa ; Han, Xiao

[PDF-3.25 MB]

English

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Details:

Creators:

Masada, Teruhisa ; Han, Xiao

Masada, Teruhisa ; Han, Xiao Less -
Corporate Creators:

Ohio Research Institute for Transportation and the Environment
Corporate Contributors:

United States. Federal Highway Administration
Subject/TRT Terms:

[+]

Bridge Design Bridge Foundations Laboratory Tests Literature Reviews Properties Of Materials Ratings Rocks Statistical Analysis
Publication/ Report Number:

FHWA/OH-2013/11
Resource Type:

Tech Report
Geographical Coverage:

Ohio
Corporate Publisher:

Ohio. Dept. 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
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:bf81ad672f810f613975715a6e7b1475ba08ac712f6f1e1dcdd47b5830d8367b
Download URL:

https://rosap.ntl.bts.gov/view/dot/27182/dot_27182_DS1.pdf
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Rock mass classification system : transition from RMR to GSI.

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