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    Introduction to Geotechnical Engineering

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    1 : 1 Introduction to Geotechnical Engineering N. Sivakugan Duration: 11 min 56 s
    2 : 2 Typical Geotechnical Project construction site Geo-Laboratory ~ for testing Design Office ~ for design & analysis soil samples soil properties design details
    3 : Geotechnical Applications
    4 : 4 Shallow Foundations ~ for transferring building loads to underlying ground ~ mostly for firm soils or light loads
    5 : Shallow Foundations
    6 : 6 Deep Foundations P I L E ~ for transferring building loads to underlying ground ~ mostly for weak soils or heavy loads
    7 : 7 Deep Foundations Driven timber piles, Pacific Highway
    8 : 8 Retaining Walls ~ for retaining soils from spreading laterally
    9 : 9 Earth Dams ~ for impounding water
    10 : 10 Concrete Dams
    11 : 11 Concrete Dams Three Gorges Dam, Hong Kong
    12 : 12 Concrete Dams
    13 : 13 Earthworks Roadwork, Pacific Highway ~ preparing the ground prior to construction
    14 : 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?#!
    15 : 15 Geofabrics ~ used for reinforcement, separation, filtration and drainage in roads, retaining walls, embankments… Geofabrics used on Pacific Highway
    16 : 16 Reinforced Earth Walls ~ using geofabrics to strengthen the soil
    17 : 17 Soil Nailing ~ steel rods placed into holes drilled into the walls and grouted
    18 : 18 Sheet Piles ~ sheets of interlockingsteel or timber driven into the ground, forming a continuous sheet
    19 : 19 Sheet Piles ~ resist lateral earth pressures ~ used in excavations, waterfront structures, ..
    20 : 20 Sheet Piles ~ used in temporary works
    21 : 21 Sheet Piles ~ interlocking sections
    22 : 22 Cofferdam ~ sheet pile walls enclosing an area, to prevent water seeping in
    23 : 23 Landslides
    24 : 24 Shoring propping and supporting the exposed walls to resist lateral earth pressures
    25 : 25 Tunneling
    26 : 26 Blasting For ore recovery in mines
    27 : 27 Ground Improvement Impact Roller to Compact the Ground
    28 : 28 Ground Improvement Sheepsfoot Roller to Compact Clay Soils
    29 : 29 Ground Improvement Smooth-wheeled Roller
    30 : 30 Ground Improvement Big weights dropped from 25 m, compacting the ground.
    31 : 31 Environmental Geomechanics Waste Disposal in Landfills
    32 : 32 Instrumentation ~ to monitor the performances of earth and earth supported structures ~ to measure loads, pressures, deformations, strains,…
    33 : Soil Testing Cone Penetration Test Truck – Lavarach Barracks, Townsville
    34 : Soil Testing More Field Tests Standard Penetration Test Vane Shear Test
    35 : 35 Soil Testing Triaxial Test on Soil Sample in Laboratory
    36 : 36 Soil Testing Variety of Field Testing Devices
    37 : 37 Soil Testing Being Pushed around by my Supervisors Purdue University, USA
    38 : 38 Typical Safety Factors
    39 : 39 Some unsung heroes of Civil Engineering… … buried right under your feet.
    40 : Hall of Fame Great Contributors to the Developments in Geotechnical Engineering
    41 : 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
    42 : Challenges Geotechnical Engineering Landmarks
    43 : 43 Leaning Tower of Pisa Our blunders become monuments!
    44 : 44 Hoover Dam, USA Tallest (221 m) concrete dam
    45 : 45 Petronas Tower, Malaysia Tallest building in the world
    46 : 46 and…. Monuments
    47 : CS2005: Geo-Engineering I
    48 : 48 Geo-engineering at JCU CS2005 Geo-engineering I CS3002 Geo-engineering I CS4001 Geo-engineering I Postgrad MEngSc/PhD
    49 : 49 Practicals ~ five practical sessions ~ closed footwear must be worn in the lab
    50 : 50 Laboratory Staff Neville Hines & Rudd Rankine
    51 : 51 Quizzes about 4-6, 50 minutes each open book How? Why? to reinforce main points provides a wake up call form of assessment
    52 : 52 Past CS2005 Grades
    53 : 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.
    54 : 54 Some Suggestions Work in groups.
    55 : 55 Some Suggestions Thou shall not wait till the last minute.
    56 : 56 Exams My mama always said, “Exam is like a box of chocolates; you never know what you are gonna get”
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