[GEOE 413] - Final Exam Guide - Everything you need to know! (70 pages long)

• School: Queen's University
• Department: Geological Engineering Courses
• Course: GEOE 413
• Professor: Mark S Diederichs

Document Summary

Joints in particular affect the strength of a rock. Below are three diagrams showing a strong rock to a weak one that could cause problems when trying to build in it. =specific weight=mass x 9. 81m/s2 / volume = m/m3. **rocks are between 2. 3 and 3. 3, averaging at 2. 7. There are two main types of stress and a combination of the two cause rocks to change. This causes a volumetric change and is symbolized by . Shear stress is what causes distortion and is symbolized by . Left is normal stress, right is shear stress. Erosion reduces the vertical stress on rocks however, the horizontal stress is still locked in and does not change. 2d stress tensors involve 3 distinct pieces of information. 3d stress tensors involve 6 pieces of information. With both the 2d and 3d stress tensors there is an orientation in space where there is a maximum ( 1) and minimum ( 3) value.