Engineering geology aspects for design and classification - Tunnel Engineering: Basics and Additional Services for Design and Construction - page 36

Table 2-6 continued

Rock strength
11. Uniaxial compression
test

see also 7 F u σ u

12. Direct shear test see also 9 F u τ u

13. Point load test Very simple test

14. Splitting test
(Brazilian test)

Primary and secondary s tress state
Stress relief tests in
excavation
15. Extensometer

P u See also Chapter IV

σ z, u

16. Convergence
measurements

See also Chapter IV