Loose sandy deposits sometimes change into a liquid state during earthquakes. This is called liquefaction and poses a serious problem in waterfront areas. When the sandy deposits liquefy, structures built on those deposits are seriously affected; for example, heavy structures settle and light buried structures heave. Reliable remediation with respect to liquefaction is necessary in geotechnical engineering practice. This book presents methodologies for assessment of liquefaction potential and remedial measures to mitigate liquefaction for reclaimed land. These methodologies are based on continuous research and decades of experience in design and construction of port facilities in Japan, where liquefaction often poses a serious problem in design and construction.
Preface; 1. Introduction; 2. Liquefaction phenomenon and examples of damage; 3. Strategy for liquefaction remediation of reclaimed land; 4. In-situ and laboratory testing and assessment of liquefaction potential; 5. Remediation of liquefiable soils; References; Subject Index
Technical notes: 1. Recent advances and future trends in liquefaction/ damage evaluation; 2. Recent advances and future trends in liquefaction remediation
Appendices: 1. Summary of seismic design guidelines and standards in Japan; 2. Soil improvement area for various structures; 3. Examples of remedial measures against liquefaction; 4. Liquefaction remediation methods developed by private sector technology; 5. Design calculation examples.