| Name | Type | Description |
| GSI |
P_SINGLEVALUE
/
IfcPositiveInteger
|
The Geological Strength Index (GSI): A characterization tool for assessing engineering properties for rock masses.
|
| RMR |
P_SINGLEVALUE
/
IfcPositiveInteger
|
The rock mass rating (RMR) is a geomechanical classification system for rocks, developed by Z. T. Bieniawski.
|
| Q-value |
P_SINGLEVALUE
/
IfcReal
|
A description of the rock mass stability of an underground opening in jointed rock masses based on Q-system which was originaly developed at NGI.2015 - Handbook on the Q-System - NGI.
|