The Premixing method prinicple design and construction 1st Edition by Engan Kaihatsu Gijutsu Kenkyū Sentā ISBN 9789058095473 9058095479
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Product details:
ISBN 10: 9058095479
ISBN 13: 9789058095473
Author: Engan Kaihatsu Gijutsu Kenkyū Sentā
This technical volume provides a comprehensive overview of the Premixing Method, a ground improvement technique developed and widely used in Japan. Authored by the Coastal Development Institute of Technology (Engan Kaihatsu Gijutsu Kenkyū Sentā), the book focuses on the principles, design criteria, and construction methods of the premixing approach for soil stabilization, especially in coastal and soft ground environments.
The method involves the in-situ mixing of soil with stabilizing agents such as cement or lime before final placement, enhancing soil strength and reducing settlement. Key topics include:
Theoretical basis and geotechnical principles behind premixing
Selection of materials and additives
Laboratory and field testing procedures
Design considerations and performance evaluation
Construction equipment and step-by-step field execution
Case studies showcasing successful applications in harbor and coastal projects in Japan
Intended for civil engineers, geotechnical professionals, and researchers, this book bridges the gap between theory and practical implementation, offering insight into one of Japan’s signature ground improvement technologies.
Table of contents:
Chapter 1 Outline of the Premixing Method
1.1 Introduction
1.2 Development of the premixing method
1.3 Stabilization mechanism and hardening agents
Chapter 2 Factors Influencing the Increase in Strength
2.1 Introduction-
2.2 Type of stabilizer and percentage of stabilizer added
2.3 Curing temperature and age
2.4 Type of soil treated
Chapter 3 Engineering Properties of Treated Soil..
3.1 Introduction
3.2 Mechanical properties
3.3 Effects of liquefaction measures
3.4 Earth pressure reduction effects
Chapter 4 Execution Examples
4.1 Execution table
4.2 Artificial island on the kisarazu side of the Tokyo by aqualine
4.3 Niigata Airport
4.4 New East Harbor in the Port of Ishikari (-7.5 m Quaywall)
4.5 Rokko Island in the Port of Kobe (-10 m Quaywall)
4.6 Port of Kobe, Rokko Island (Ferry Quaywall (RF-3))-
4.7 Ground survey results
Chapter 5 Design Method
5.1 Basic concepts.
5.2 Design to reduce earth pressure
5.2.1 External forces
5.2.2 Setting the strength of the treated soil
5.2.3 Earth pressure
5.2.4 Improvement range.
5.3 Design for liquefaction prevention
5.3.1 External forces
5.3.2 Setting the strength of the treated soil
5.3.3 Improvement range
5.3.4 Circular slip analysis
5.4 Mix proportion design.
5.5 Laboratory mix proportion test
5.6 Mix proportion at job site…..
5.7 Examples of Design
5.7.1 Design where the ground behind the treated ground does not have a possibility of liquefaction
5.7.2 Design where the ground behind the treated ground has a possibility of liquefaction
5.7.3 The relationship between the slip safety factor and the inclination at the back surface of the treated ground (when the area behind the treated ground has a possibility of liquefaction).
Chapter 6 Installation Method and Inspection in Construction Work
6.1 Installation work and facility
6.1.1 Categories of installation methods
6.1.2 Mixing work
6.1.3 Mixing sites
6.1.4 Reclamation method
6.2 Inspection in construction work
6.2.1 Inspection of quality
6.2.2 Inspection of water quality
6.2.3 Inspection of water temperature
6.2.4 Inspection of quality of treated soil/fill
6.3 Preliminary field test before construction
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