Soil Mechanics

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  • Topic: Sand, Silt, Soil
  • Pages : 62 (17820 words )
  • Download(s) : 43
  • Published : May 7, 2013
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Soil Fundamentals

CONTENTS
Part 1 Soil Mechanics What Is Soil? ...................................................................page 1 Soil Groups .....................................................................page 1 Grain Size Limits.............................................................page 2 Soil Properties and Characteristics...................................page 2 Soil Analysis ....................................................................page 7 Moisture Content............................................................page 9 Atterberg Limits ............................................................page 10 Soil Classification ..........................................................page 13 AASHTO classification system ......................................page 14 Unified classification system ..........................................page 16 FAA classification system...............................................page 19 Summary of Identifying Clues for Gradation and Plasticity .....................................page 22 Part 2 Embankment Compaction..............................................page 25 Controlling Factors........................................................page 25 Soil Moisture - Density Tests.........................................page 31 Laboratory Tests ............................................................page 31 Field Density Tests ........................................................page 35 Specifications.................................................................page 39 Job Layout.....................................................................page 41 Equipment Selection .....................................................page 40 Compaction Equipment Selection.................................page 42 Part 3 Base and Sub-base Compaction ......................................page 50 Sub-base Soils................................................................page 51 Aggregate Bases .............................................................page 52 Soil Stabilization............................................................page 53 Glossary ......................................................................................page 56

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Soil Fundamentals

LIST OF FIGURES
Grain size limits chart......................................................page 2 Capillarity illustration......................................................page 3 Compressibility illustration .............................................page 3 Elasticity illustration........................................................page 4 Permeability illustration...................................................page 4 Settlement illustration .....................................................page 5 Shearing resistance illustration.........................................page 5 Internal friction and cohesion illustration........................page 6 Shrinkage illustration.......................................................page 6 Sieves...............................................................................page 7 Typical sieve analysis........................................................page 8 Grain size distribution curve............................................page 8 Air, water, soil relationship ............................................page 10 Liquid Limit test device.................................................page 11 Plastic Limit test illustration..........................................page 12 Stages of consistency chart.............................................page 13 Unified soil classification system chart...........................page 16 “A” line plasticity chart..................................................page 18 Shaking test illustration .................................................page 21 Toughness test illustration .............................................page 21 Dispersion test...
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