1 rock mechanics ppt by dr dan
DESCRIPTION
asTRANSCRIPT
![Page 1: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/1.jpg)
Rock Mechanics and Engineering Geoscience
EOSC316
Dr. Dan Faulkner
![Page 2: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/2.jpg)
Rock Mechanics
• First 6 weeks: Rock Mechanics– 12 lectures– 6 practicals
• Second 6 weeks: Engineering Geoscience– 12 lectures– 6 practicals
• Assessment: 3 hour exam + 2 practicals
![Page 3: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/3.jpg)
Course structure• Lectures 1-4
– Stress and strain• Lectures 5-8
– Rock fracture• Lectures 9-12
– Faults, friction and earthquakes
• Lectures 13-24– Engineering applications of Rock Mechanics– What can happen? How can we mitigate against it?
![Page 4: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/4.jpg)
Recommended texts• 1st 6 weeks: Rock Mechanics
– Mechanics of Earthquakes and Faulting by Chris Scholz (2nd
Edition)• Stress and Strain by Win Means• Fundamentals of Rock Mechanics by Jaeger and Cook• Structural Geology textbooks for stress/strain
• 2nd 6 weeks: Rock Mechanics and Engineering Geology– Foundations of Engineering Geology by Tony Waltham– Practical Rock Engineering by Evert Hoek. Available free on the
web:• http://www.rocscience.com/hoek/PracticalRockEngineering.asp
![Page 5: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/5.jpg)
Rock Mechanics
• Mechanics: study of motion and force• Emphasis on brittle rock mechanics (top 15
to 20 km of the Earth’s crust)– Fracture– Friction
![Page 6: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/6.jpg)
Why is Rock Mechanics important?
• For understanding how the Earth works– Fault mechanics (earthquakes, etc)– Lithosphere strength– Propagation of seismic waves
• For design and analysis of man-made structures:– Dams– Tunnels– Waste repositories
![Page 7: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/7.jpg)
Scale of observationsIn order to understand the processes that contribute to the failure process, we need to investigate what occurs on a small scale. Predictions of the macroscopic behaviour is based upon what happens physically at the microscopic scale.
Mechanistic rather than phenomenological approach
![Page 8: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/8.jpg)
What can we do with rock mechanics?
• Engineering structures• Understand earth processes
![Page 9: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/9.jpg)
![Page 10: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/10.jpg)
![Page 11: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/11.jpg)
![Page 12: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/12.jpg)
![Page 13: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/13.jpg)
![Page 14: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/14.jpg)
![Page 15: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/15.jpg)
![Page 16: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/16.jpg)
![Page 17: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/17.jpg)
![Page 18: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/18.jpg)
Emosson Dam, Switzerland
![Page 19: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/19.jpg)
![Page 20: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/20.jpg)
Mersey tunnels: 1934 (Queensway) and 1971 (Kingsway)
Tunnels meet, 1928
Recent improvements to Kingsway
![Page 21: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/21.jpg)
Golden Gate Bridge, San Francisco, 1937
![Page 22: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/22.jpg)
Akashi Kaikyo Suspension Bridge, Kobe, Japan, 1998. 1991 m span
![Page 23: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/23.jpg)
What happens when we don’t understand?
![Page 24: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/24.jpg)
City Hall, San Francisco, 1906
![Page 25: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/25.jpg)
Statue of Louis Agassiz,Stanford University campus,1906
![Page 26: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/26.jpg)
Izmit earthquake,TurkeyM7.4, 17th August 1999
![Page 27: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/27.jpg)
“We fundamentally don’t understand how earthquakes work. After all these years, we
don’t have a clue.”
Mark Zoback, Science, 1992
![Page 28: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/28.jpg)
What happens when we get it wrong?
• Roads over landslips, Mam Tor• Vaiont dam disaster, Italy
![Page 29: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/29.jpg)
The Vaiont dam disaster, Italian Dolomites, 1963
![Page 30: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/30.jpg)
![Page 31: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/31.jpg)
![Page 32: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/32.jpg)
bThe Mam Tor head scar – looking west
![Page 33: 1 Rock Mechanics Ppt by Dr Dan](https://reader033.vdocument.in/reader033/viewer/2022042421/55cf94a8550346f57ba38b70/html5/thumbnails/33.jpg)
The Mam TorLandslip