Download Lectures on Rock Mechanics - IITK - Indian Institute of Technology

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Transcript
DISCONTINUITIES
4) Shear zones
– bands of materials - local shear failure
5) Dykes
– igneous intrusions (near vertical)
– weathered dykes, e.g. dolerite weathers to
montmorillonite
– unweathered dykes attract high stresses
6) Joints
– breaks with no visible displacement