Rock Strength shear Strength Compressive Strength
1-f rock strength surface finish and flaws if the strength of rock in beam-bending depends on the surface finish… beam-bending is of little value to engineering design issues the strength of rock in tension is dependent on the size of the flaw these observations, combined with the fact that rock masses have many.1. larger, rough, massive and sticky rocks can be crushed. 2. they are easy to maintain 3. it is very simple to adjust and prevent much of wear and are easy to repair, 4. moving jaw can be reinforced with high tensile manganese to crush very hard rock. figure 1.2 2) dodge type jaw.