CIVENG 2J03 W2024 Assignment 5

CIVENG 2J03: Engineering Geology Winter 2024 Assignment #5 Grader: Assefa Hayelom Hailu Due Date: March 21st, 2024, 11:59pm This assignment is intended for individual work only, and collaboration with others is strictly prohibited . By submitting your work, you affirm that you have completed the assignment independently and have not engaged in any collaborative efforts. You must show all your work , including detailed steps and calculations, as part of your submission. All answers must be written based on the content taught in the lecture . At this stage of the course, we have established that rocks are significant for two major reasons in engineering, which are as building materials for constructions and as foundations on which the constructions are cited. Your team has been commissioned with the construction of high-level nuclear waste repositories to store waster from McMaster Nuclear plant. Your task is to understand the engineering properties of the rocks that is important in preventing migration of waste products from the disposal site. To successfully complete this assignment, you will need to apply your knowledge of rock deformation and engineering behaviour of rocks and soils. N ote: Keep your answers concise and brief. If you use other sources aside from class notes, consider referencing the source using proper citations – APA style . 1. An unconfined compression testing of a rock sample from the proposed site produced the following stress-strain data: [10 marks] 500 0.20 1000 0.63 2000 1.08 4000 1.55 6000 1.85 8000 2.10 10000 2.49 12000 2.78 14000 3.05 14521 failure Stress (psi) Strain (10 3 in/in) a. Plot the stress-strain relationship of the sample and calculate the modulus ratio. b. Describe the deformation processes that took place within the sample tested. c. What could contribute to differences between stress-strain behaviour measured in the field and that recorded in the laboratory? Page 1 of 2