2. SIVA 1 Introduction to Geotechnical Engineering ground Duration: 11 min 56 s

3. SIVA Copyright  2001 2 Typical Geotechnical Project construction site Geo-Laboratory ~ for testing Design Office ~ for design & analysis soil samples soil properties design details

5. SIVA Copyright  2001 4 bed rock firm ground Shallow Foundations ~ for transferring building loads to underlying ground ~ mostly for firm soils or light loads

6. SIVA Copyright  2001 Shallow Foundations

7. SIVA Copyright  2001 6 bed rock weak soil Deep Foundations PILEPILE ~ for transferring building loads to underlying ground ~ mostly for weak soils or heavy loads

8. SIVA Copyright  2001 7 Deep Foundations Driven timber piles, Pacific Highway

9. SIVA Copyright  2001 8 Retaining Walls ~ for retaining soils from spreading laterally Road Train retaining wall

10. SIVA Copyright  2001 9 Earth Dams ~ for impounding water soil reservoir clay core shell

11. SIVA Copyright  2001 10 Concrete Dams reservoir soil concrete dam

12. SIVA Copyright  2001 11 Concrete Dams Three Gorges Dam, Hong Kong

13. SIVA Copyright  2001 12 Concrete Dams

14. SIVA Copyright  2001 13 Earthworks Roadwork, Pacific Highway ~ preparing the ground prior to construction

15. SIVA Copyright  2001 14 Construction hazard ~ an unwelcome visitor at an earthwork site. A dead Anaconda python (courtesy: J. Brunskill) What does it have to do with Geo?#!

16. SIVA Copyright  2001 15 Geofabrics ~ used for reinforcement, separation, filtration and drainage in roads, retaining walls, embankments… Geofabrics used on Pacific Highway

17. SIVA Copyright  2001 16 Reinforced Earth Walls ~ using geofabrics to strengthen the soil

18. SIVA Copyright  2001 17 Soil Nailing ~ steel rods placed into holes drilled into the walls and grouted

19. SIVA Copyright  2001 18 Sheet Piles ~ sheets of interlockingsteel or timber driven into the ground, forming a continuous sheet ship warehouse sheet pile

20. SIVA Copyright  2001 19 Sheet Piles ~ resist lateral earth pressures ~ used in excavations, waterfront structures,..

21. SIVA Copyright  2001 20 Sheet Piles ~ used in temporary works

22. SIVA Copyright  2001 21 Sheet Piles ~ interlocking sections

23. SIVA Copyright  2001 22 Cofferdam ~ sheet pile walls enclosing an area, to prevent water seeping in

24. SIVA Copyright  2001 23 Landslides

25. SIVA Copyright  2001 24 Shoring propping and supporting the exposed walls to resist lateral earth pressures

26. SIVA Copyright  2001 25 Tunneling

27. SIVA Copyright  2001 26 Blasting For ore recovery in mines

28. SIVA Copyright  2001 27 Ground Improvement Impact Roller to Compact the Ground

29. SIVA Copyright  2001 28 Ground Improvement Sheepsfoot Roller to Compact Clay Soils

30. SIVA Copyright  2001 29 Ground Improvement Smooth-wheeled Roller

31. SIVA Copyright  2001 30 Ground Improvement Big weights dropped from 25 m, compacting the ground. Craters formed in compaction

32. SIVA Copyright  2001 31 Environmental Geomechanics Waste Disposal in Landfills

33. SIVA Copyright  2001 32 Instrumentation ~ to monitor the performances of earth and earth supported structures ~ to measure loads, pressures, deformations, strains,…

34. SIVA Copyright  2001 Soil Testing Cone Penetration Test Truck – Lavarach Barracks, Townsville

35. SIVA Copyright  2001 Soil Testing More Field Tests Standard Penetration TestVane Shear Test

36. SIVA Copyright  2001 35 Soil Testing Triaxial Test on Soil Sample in Laboratory

37. SIVA Copyright  2001 36 Soil Testing Variety of Field Testing Devices

38. SIVA Copyright  2001 37 Soil Testing Being Pushed around by my Supervisors Purdue University, USA

39. SIVA Copyright  2001 38 Typical Safety Factors Type of DesignSafety Factor Probability of Failure Earthworks1.3-1.51/500 Retaining structures 1.5-2.01/1500 Foundations2.0-3.01/5000

40. SIVA Copyright  2001 39 Some unsung heroes of Civil Engineering… … buried right under your feet. foundations soil exploration tunneling

41. Great Contributors to the Developments in Geotechnical Engineering

42. Karl Terzaghi 1883-1963 C.A.Coulomb 1736-1806 WJM Rankine 1820-1872 A.Casagrande 1902-1981 L. Bjerrum 1918-1973 A.W.Skempton 1914- G.F.Sowers 1921-1996 G.A. Leonards 1921-1997 Siva’s teacher in USA – deserves gold frame

43. Geotechnical Engineering Landmarks

44. SIVA Copyright  2001 43 Leaning Tower of Pisa Our blunders become monuments!

45. SIVA Copyright  2001 44 Hoover Dam, USA Tallest (221 m) concrete dam

46. SIVA Copyright  2001 45 Petronas Tower, Malaysia Tallest building in the world

47. SIVA Copyright  2001 46 and…. Monuments

49. SIVA Copyright  2001 48 Geo-engineering at JCU CS2005 Geo-engineering I CS3002 Geo-engineering I CS4001 Geo-engineering I Postgrad MEngSc/PhD

50. SIVA Copyright  2001 49 Practicals ~ five practical sessions ~ closed footwear must be worn in the lab

51. SIVA Copyright  2001 50 Laboratory Staff Neville Hines & Rudd Rankine

52. SIVA Copyright  2001 51 Quizzes  about 4-6, 50 minutes each  open book How? Why?  to reinforce main points  provides a wake up call  form of assessment

53. SIVA Copyright  2001 52 Past CS2005 Grades 1996199719981999200020012002 HD511330 ? D423296 C15126772 P 886108 P-602415 N12101214913 X003331 Total543335394235

54. SIVA Copyright  2001 53 Some Suggestions Attend the lectures. Develop a good feel for the subject. It takes longer to understand from the lecture notes It is practical, interesting and makes lot of sense.

55. SIVA Copyright  2001 54 Some Suggestions Work in groups.

56. SIVA Copyright  2001 55 Some Suggestions Thou shall not wait till the last minute.

57. SIVA Copyright  2001 56 Exams My mama always said, “Exam is like a box of chocolates; you never know what you are gonna get”