Contenido Principles and Practice of Ground Improvement

Gain a stronger foundation with optimal ground improvement
Before you break ground on a new structure, you need to analyze the structure of the ground. Expert analysis and optimization of the geo-materials on your site can mean the difference between a lasting structure and a school in a sinkhole. Sometimes problematic geology is expected because of the location, but other times it's only unearthed once construction has begun. You need to be able to quickly adapt your project plan to include an improvement to unfavorable ground before the project can safely continue.

Principles and Practice of Ground Improvement is the only comprehensive, up-to-date compendium of solutions to this critical aspect of civil engineering. Dr. Jie Han, registered Professional Engineer and preeminent voice in geotechnical engineering, is the ultimate guide to the methods and best practices of ground improvement. Han walks you through various ground improvement solutions and provides theoretical and practical advice for determining which technique fits each situation.
•Follow examples to find solutions to complex problems
•Complete homework problems to tackle issues that present themselves in the field
•Study design procedures for each technique to simplify field implementation
•Brush up on modern ground improvement technologies to keep abreast of all available options

Principles and Practice of Ground Improvement can be used as a textbook, and includes Powerpoint slides for instructors. It's also a handy field reference for contractors and installers who actually implement plans. There are many ground improvement solutions out there, but there is no single right answer to every situation. Principles and Practice of Ground Improvement will give you the information you need to analyze the problem, then design and implement the best possible solution.

Table of Contents


CHAPTER 1 INTRODUCTION

1.1 Introduction
1.2 Problematic Geomaterials and Conditions
 1.2.1 Problematic Geomaterials
 1.2.2 Problematic Conditions
1.3 Geotechnical Problems and Failures
1.4 Ground Improvement Methods and Classification
 1.4.1 Historical Developments 2
 1.4.2 Classification 3
 1.4.3 General Description, Function, and Application
1.5 Selection of Ground Improvement Method
 1.5.1 Necessity of Ground Improvement
 1.5.2 Factors for Selecting Ground Improvement Method
 1.5.3 Selection Procedure
1.6 Design Considetations
1.7 Construction
1.8 Quality Control and Assurance
1.9 Recent Advances and Trends for Future Developments
 1.9.1 Recent Advances
 1.9.2 Trends for Future Developments
1.10 Organization of Book
Problems
References

CHAPTER 2 GEOTECHNICAL MATERIALS, TESTING, AND DESIGN

2.1 Introduction
2.2 Geomaterials and Properties
 2.2.1 Classifications
 2.2.2 Physical Properties
 2.2.3 Mechanical Properties
 2.2.4 Hydraulic Properties
 2.2.5 Compaction of Geomaterial
2.3 Geosynthetics and Properties
 2.3.1 Type of Geosynthetic
 2.3.2 Function
 2.3.3 Properties and Test Methods
2.4 In situ Testing
 2.4.1 Standard Penetration Test
 2.4.2 Cone Penetration Test
 2.4.3 Vane Shear Test
 2.4.4 Pressuremeter Test
 2.4.5 Plate Load Test
2.5 Shallow Foundation Design
 2.5.1 Bearing Capacity
 2.5.2 Settlement
 2.5.3 Consolidation
2.6 Slope Stability Analysis
 2.6.1 Introduction
 2.6.2 Methods for Slope Stability Analysis
2.7 Earth Retaining Wall Analysis
 2.7.1 Type of Wall
 2.7.2 Lateral Earth Pressure Coefficient
 2.7.3 Rankine’s Theory
 2.7.4 Coulomb’s Theory
2.8 Liquefaction Analysis
 2.8.1 Liquefaction Potential
 2.8.2 Earthquake-Induced Settlement
Problems
References

CHAPTER 3 SHALLOW AND DEEP COMPACTION

3.1 Introduction
3.2 Densification Principles
3.3 Conventional Compaction
 3.3.1 Introduction
 3.3.2 Principles
 3.3.3 Design Considerations
 3.3.4 Design Parameters and Procedure
 3.3.5 Design Example
 3.3.6 Construction
 3.3.7 Quality Control and Assurance
3.4 Intelligent Compaction
 3.4.1 Introduction
 3.4.2 Principles
 3.4.3 Design Considerations
 3.4.4 Construction
 3.4.5 Quality Control and Assurance
3.5 Deep Dynamic Compaction
 3.5.1 Introduction
 3.5.2 Principles
 3.5.3 Design Considerations
 3.5.4 Design Parameters and Procedure
 3.5.5 Design Example
 3.5.6 Construction
 3.5.7 Quality Control and Assurance
3.6 Rapid Impact Compaction
 3.6.1 Introduction
 3.6.2 Principles
 3.6.3 Design Considerations
 3.6.4 Design Parameters and Procedure
 3.6.5 Design Example
 3.6.6 Construction
 3.6.7 Quality Control and Assurance
3.7 Vibro-compaction
 3.7.1 Introduction
 3.7.2 Principles
 3.7.3 Design Considerations
 3.7.4 Design Parameters and Procedure
 3.7.5 Design Example
 3.7.6 Construction
3.7.7 Quality Control and Assurance
Problems
References

CHAPTER 4 OVEREXCAVATION AND REPLACEMENT

4.1 Introduction
 4.1.1 Basic Concept
 4.1.2 Suitability
 4.1.3 Applications
 4.1.4 Advantages and Limitations
4.2 Principles
 4.2.1 Stress Distribution
 4.2.2 Failure Modes
4.3 Design Considerations
 4.3.1 General Shear Failure within Replaced Zone
 4.3.2 Punching Failure through the Replaced Zone
 4.3.3 Failure of Distributed Foundation
 4.3.4 Punching Failure of Replaced Zone into In Situ Soil
 4.3.5 Minimum Bearing Capacity and Factor of Safety
 4.3.6 Settlement of a Footing on Layered Soils of Infinite Width
 4.3.7 Settlement of a Footing on a Replaced Zone with Limited Area
4.4 Design Parameters and Procedure
 4.4.1 Design Parameters
 4.4.2 Design Procedure
4.5 Design Example
4.6 Construction
 4.6.1 Selection of Fill
 4.6.2 Excavation
 4.6.3 Placement and Compaction
4.7 Quality Control and Assurance
 4.7.1 Locations and Dimensions
 4.7.2 Compacted Fill
 4.7.3 Performance Evaluation
Problems
References

CHAPTER 5 DEEP REPLACEMENT

5.1 Introduction
 5.1.1 Basic Concepts
 5.1.2 Suitability
 5.1.3 Applications
 5.1.4 Advantages and Limitations
5.2 Principles
 5.2.1 Functions
 5.2.2 Densification
 5.2.3 Load Transfer Mechanisms
 5.2.4 Failure Modes
5.3 Design Considerations
 5.3.1 General Rules
 5.3.2 Densification Effect
 5.3.3 Bearing Capacity
 5.3.4 Settlement
 5.3.5 Consolidation
 5.3.6 Stability
 5.3.7 Liquefaction
 5.3.8 Design of Geosynthetic-encased Granular Columns
5.4 Design Parameters and Procedure
 5.4.1 Granular Columns
 5.4.2 Concrete Columns
 5.4.3 Geosynthetic-encased Granular Column
5.5 Design Examples
5.6 Construction
 5.6.1 Sand Compaction Columns
 5.6.2 Stone Columns
 5.6.3 Rammed Aggregate Columns
 5.6.4 Vibro-Concrete Columns
 5.6.5 Controlled Modulus (Stiffness) Columns
 5.6.6 Geosynthetic-encased Granular Columns
5.7 Quality Control and Assurance
 5.7.1 Locations and Dimensions
 5.7.2 Fill Material
 5.7.3 Installation Parameters
 5.7.4 Performance Evaluation
Problems
References

CHAPTER 6 DRAINAGE AND DEWATERING

6.1 Introduction
6.2 Principles of Water Flow in Geomaterial
 6.2.1 Bernoulli’s Equation
 6.2.2 Flow Net
 6.2.3 Pore Water Pressure and Uplift Force
 6.2.4 Stresses Due to Seepage
6.3 Filtration
 6.3.1 Introduction
 6.3.2 Principles
 6.3.3 Design Considerations
 6.3.4 Design Parameters and Procedure
 6.3.5 Design Example
 6.3.6 Construction
 6.3.7 Quality Control and Assurance
6.4 Drainage
 6.4.1 Introduction
 6.4.2 Principles
 6.4.3 Design Considerations
 6.4.4 Design Parameters and Procedure
 6.4.5 Design Examples
 6.4.6 Construction
 6.4.7 Quality Control and Assurance
6.5 Dewatering
 6.5.1 Introduction
 6.5.2 Principles
 6.5.3 Design Considerations
 6.5.4 Design Parameters and Procedure
 6.5.5 Design Example
 6.5.6 Construction
 6.5.7 Quality Control and Assurance
 Problems
 References

CHAPTER 7 PRELOADING

7.1 Introduction
 7.1.1 Basic Concept
 7.1.2 Suitability
 7.1.3 Applications
 7.1.4 Advantages and Limitations
7.2 Principles
 7.2.1 Precompression
 7.2.2 Stress and Ground Movement
 7.2.3 Consolidation Theory
 7.2.4 Vacuum and Fill Combined Preloading
 7.2.5 Surcharge Preloading
7.3 Design Considerations
 7.3.1 Vertical Drains
 7.3.2 Preloading
 7.3.3 Surcharge Effect
7.4 Design Parameters and Procedures
 7.4.1 Design Parameters
 7.4.2 Design Procedure
7.5 Design Example
7.6 Construction
 7.6.1 Vertical Drains
 7.6.2 Drainage Layer
 7.6.3 Fill Preloading
 7.6.4 Vacuum Preloading
7.7 Quality Control and Assurance
 7.7.1 Materials
 7.7.2 Construction Details
 7.7.3 Field Monitoring
7.7.4 Performance Evaluation
Problems
References

CHAPTER 8 DEEP MIXING AND GROUTING

8.1 Introduction
8.2 Deep Mixing
 8.2.1 Introduction
 8.2.2 Principles
 8.2.3 Design Considerations
 8.2.4 Design Parameters and Procedure
 8.2.5 Design Example
 8.2.6 Construction
 8.2.7 Quality Control and Assurance
 8.3.1 Introduction
 8.3.3 Design Considerations
 8.3.4 Design Parameters and Procedure
 8.3.5 Design Example
 8.3.6 Construction
 8.3.7 Quality Control and Assurance
Problems
References

CHAPTER 9 IN SITU GROUND REINFORCEMENT

9.1 Introduction
9.2 Ground Anchors
 9.2.1 Introduction
 9.2.2 Principles
 9.2.3 Design Considerations
 9.2.4 Design Parameters and Procedure
 9.2.5 Design Example
 9.2.6 Construction
 9.2.7 Quality Control and Assurance
9.3 Soil Nailing
 9.3.1 Introduction
 9.3.2 Principle
 9.3.3 Design Considerations
 9.3.4 Design Parameters and Procedure
 9.3.5 Design Example
 9.3.6 Construction
 9.3.7 Quality Control and Assurance
Problems
References

CHAPTER 10 FILL REINFORCEMENT

10.1 Introduction
10.2 Geosynthetic-Reinforced Slopes
 10.2.1 Introduction
 10.2.2 Principles
 10.2.3 Design and Analysis
 10.2.4 Design Parameters and Procedure
 10.2.5 Construction
 10.2.6 Quality Control and Assurance
10.3 Geosynthetic-Reinforced Embankments
 10.3.1 Introduction
 10.3.2 Principles
 10.3.3 Design Considerations
 10.3.4 Design Parameters and Procedure
 10.3.5 Construction
 10.3.6 Quality Control and Assurance
10.4 Geosynthetic-Reinforced Column-Supported Embankments
 10.4.1 Introduction
 10.4.2 Principles
 10.4.3 Design Considerations
 10.4.4 Design Parameters and Procedure
 10.4.5 Construction
 10.4.6 Quality Control and Assurance
10.5 Mechanically Stabilized Earth Walls
 10.5.1 Introduction
 10.5.2 Principles
 10.5.3 Design Considerations
 10.5.4 Design Parameters and Procedure
 10.5.5 Construction
 10.5.6 Quality Control and Assurance
10.6 Geosynthetic-Reinforced Foundations
 10.6.1 Introduction
 10.6.2 Principles
 10.6.3 Design Considerations
 10.6.4 Design Parameters and Procedure
 10.6.5 Construction
 10.6.6 Quality Control and Assurance
10.7 Geosynthetic-Reinforced Roads
 10.7.1 Introduction
 10.7.2 Principles
 10.7.3 Design Considerations for Unpaved Roads
 10.7.4 Design Parameters and Procedure for Unpaved Roads
 10.7.5 Design Considerations for Paved Roads
 10.7.6 Design Parameters and Procedure for Paved Roads
 10.7.7 Design Examples
 10.7.8 Construction
 10.7.9 Quality Control and Assurance
 Problems
 References
 INDEX