STRENGTH PROPERTIES OF ROCKS AND ROCK MASSES 1 ...
2.6 Confined Compression Tests (Triaxial Tests) Confined compression tests can be conducted usi ng a confining vessel similar to the one used for measuring the strength of soils. The so-called Hoek cell is often used in this test. Figure 6a shows the original Hoek cell and Figure 6b is a modified confining cell developed at the