Earthworks : theory to practice : design and construction /: theory to practice : design and construction. (2022)

• Record Type: Book
• Further Information: Note: Burt G. Look.
• Authors: Look, Burt
• Contents: Chapter 1 – Introduction 1.1. Introduction 1.2. Why an Earthworks book 1.3. A short history of earthworks 1.4. Ground models Geological model Geotechnical model Earthworks model 1.5. Earthworks cost 1.6. The business of geotechnical engineering 1.7. Case study - Geological model for a deep basement excavation 1.8. Summary Chapter 2 – Site Investigation 2.1. Influence of the ground 2.2. Planning and staging of a site investigation Depth of site investigation Extent of investigation Sampling 2.3. Field work of site investigation Deep investigation Shallow investigation and subgrade assessment 2.4. Testing variation Shallow foundations Deep foundations Counting blows Energy transfer N-value to strength varies with geology High and low SPT values 2.5. Case study 1 – No geotechnical investigation 2.6. Case study 2 – Auger and cored drilling 2.7. Summary Chapter 3 – Site Safety 3.1. Site safety awareness 3.2. Failure of trenches Temporary supports and slopes 3.3. General safety considerations 3.4. Operating plant 3.5. Safe work method statement 3.6. Case study 1 – Sink hole failure from pile installation 3.7. Case study 2 – Incorrect as-constructed services drawings 3.8. Case study 3 – Slope failure 3.9. Summary Chapter 4 – Phase Relationships and Soil Classification 4.1. Soil elements and classification 4.2. Phase definitions 4.3. Soil types Water retention 4.4. Soil classification Gradings Atterberg limits 4.5. Engineering use chart 4.6. Case study – Gradings pre and post compaction 4.7. Summary Chapter 5 – Theory of Compaction 5.1. Introduction 5.2. Mechanics of densification Theory of compaction Compactive effort Compaction curves for different materials 5.3. Strength from compaction 5.4. Sample preparation 5.5. Field vs laboratory compaction Oversize correction 5.6. CBR test 5.7. Compactor performance in the field 5.8. Case Study 1 – Importance of curing times 5.9. Case Study 2 – Representative sampling 5.10. Summary Chapter 6 – Soil and Rock Strength 6.1. Introduction to soil and rock types 6.2. Rock types 6.3. Soil types 6.4. Types of soil strength Critical strength Residual strength Compaction induced strength 6.5. Classification of clay strength 6.6. Classification of strength of granular soils Standard penetration test Dynamic cone penetration test Cone penetration test 6.7. California bearing ratio Interaction with underlying layer Laboratory vs field conditions CBR soaking CBR from DCP test 6.8. Various methods of subgrade investigation Plate load test Dynamic cone penetrometer to estimate modulus LFWD to estimate modulus 6.9. Rock properties Rock weathering Rock strength Rock modulus 6.10. Degradable materials 6.11. Case study 1 – CBR subgrade assessment 6.12. Case study 2 – SPT field values 6.13. Summary Chapter 7– The Compaction Process 7.1. Prequel to compaction 7.2. Principles of compaction equipment Number of passes and lift thickness Travel speed 7.3. Targeted moisture content Water required for compaction 7.4. Productivity of compaction plant 7.5. Influence depth 7.6. Compaction equipment Small-sized equipment Large-sized equipment Impact compaction 7.7. Deep compaction 7.8. Case study 1 – Targeted field moisture ratios 7.10. Case study 3 – Effect of roller type: Dynamic force monitoring 7.11. Summary Chapter 8 – Excavations and Bulking 8.1. Introduction 8.2. Definition of rock in contract documents 8.3. Excavation equipment 8.4. Open excavation assessment Excavation assessment based on rock mass rating Excavation assessment based on seismic wave velocities Excavation assessment based on various ratings Excavation assessment based on production rates 8.5. Equipment balance Plant output 8.6. Confined space excavation assessment Diggability index Trench, shaft, and tunnel excavations in rock 8.7. Bulking factors 8.8. Case study 1 – Unit weight of excavated material placed as fill 8.9. Case study 2 – Variation of material through a cutting 8.10. Summary Chapter 9 – Slope Stability in Cuttings and Embankments 9.1. Introduction 9.2. Causes of slope failure 9.3. Quantitative risk analysis Landslides as compared with other hazard events The perception of risk Case study of landslides with varying consequences 9.4. Factors of safety Factors of safety for new slopes Factors of safety for existing slopes Factors of safety based on consequences class Factors of safety for dam walls 9.5. Typical slopes for cuttings and embankments Rock slopes Rock cut stabilisation measures 9.6. Soil erodibility Erodibility hierarchy Erosion control Benching of slopes 9.7. Case study 1 - Mechanisms of landslide failures 9.8. Case study 2 - Riverbank failure 9.9. Case study 3 – Landslide zonation by GIS analysis 9.10. Summary Chapter 10 – Expansive Soils 10.1. Introduction Pavement design and distress 10.2. Cost of damage 10.3. Mechanical damage from tree roots 10.4. Volume change behaviour Index tests Embankments and cuttings 10.5. Calculation of movement using the shrink – swell index 10.6. Weighted plasticity index (WPI) for residual soils WPI = PI x % passing the 425-micron sieve 10.7. Soil suction and saturation 10.8. Relationship of WPI with CBR test 10.9. Compaction 10.10. Design CBR 10.11. Equilibrium moisture content compaction Index parameters which indicate the seasonal changes 10.12. Swell pressure tests for assessment of stable zone 10.13. Zonal use of expansive clay 10.14. Effect of trees on ground movement 10.15. Case study 1 – Long-term monitoring of existing embankments Trial embankment Construction monitoring Key considerations 10.16. Case study 2 - Effect of desiccation cracks on modulus 10
• Edition: 1st
• Publisher Details: Boca Raton : CRC Press
• Publication Date: 2022
• Extent: 1 online resource
• Subjects: 624.15; Earthwork
• Languages: English
• ISBNs: 9781000618211; 9781000618143; 9781003215486
• Related ISBNs: 9781032104706
• Notes: Note: Includes bibliographical references and index.; Note: Description based on CIP data; resource not viewed.
• Access Rights: Legal Deposit; Only available on premises controlled by the deposit library and to one user at any one time; The Legal Deposit Libraries (Non-Print Works) Regulations (UK).
• Access Usage: Restricted: Printing from this resource is governed by The Legal Deposit Libraries (Non-Print Works) Regulations (UK) and UK copyright law currently in force.