出典:Wikipedia
出典:『Wikipedia』 (2011/03/27 06:05 UTC 版)
Rock mass classification systems are used for various engineering design and stability analysis. These are based on empirical relations between rock mass parameters and engineering applications, such as tunnels, slopes, foundations, and excavatability. The first rock mass classification system in geotechnical engineering was proposed in the 1940s for tunnels with steel set support.