Liquefaction

Liquefaction Induced Calculation During Earthquakes 

The purpose of this spreadsheet is to analyse liquefaction induced settlement during earthquakes

Calculation Reference 

'Soil Liqufaction During Earthquakes', EERI Monogram MNO-12, by I.M. Idriss and R.W. Boulanger, 2008.  

Calculation Validation

Appendix A and C: Example of SPT-based liquefaction trigering analysis for a single boring, 'Soil Liqufaction During Earthquakes', EERI Monogram MNO-12, by I.M. Idriss and R.W. Boulanger, 2008.  

Input Parameters: 

Peak Ground Acceleration  = 

Earthquake Magnitude = 

Water Table Depth  = 

Average ? Above Water Table  = 

Average ? Below Water Table  = 

Borehole Diameter = 

Requires Correction for Sampler Liners (YES/NO): 

Rod Lenghts Assumed Equal to the Depth plus 1.5 m (for the above ground extension). 

Calculation Reference

Liquefaction Earthquake

Soil Liqufaction During Earthquakes

Earthquake Engineering

'Soil Liquefaction During Earthquakes' is an EERI (Earthquake Engineering Research Institute) Monograph, MNO-12, authored by I.M. Idriss and R.W. Boulanger, published in 2008. The monograph is a comprehensive resource on the topic of soil liquefaction, its occurrence, and its effects on structures during earthquakes. It aims to provide a practical understanding of the phenomenon, the associated risks, and the latest methods for evaluating liquefaction potential.

The monograph is divided into several chapters, covering topics such as:

1. Introduction: A brief overview of the phenomenon of soil liquefaction and its significance during earthquakes.

2. Liquefaction mechanism: Explanation of the process of soil liquefaction, including the factors that contribute to its occurrence, such as soil type, groundwater conditions, and seismic loading.

3. Field performance: A discussion of various case histories illustrating the effects of soil liquefaction on structures, including examples of successful and unsuccessful performance.

4. Liquefaction potential evaluation: Presentation of the current state of the art methods for assessing the liquefaction potential of soils, including simplified procedures, laboratory testing, and advanced numerical modeling techniques.

5. Post-liquefaction strength and deformations: Analysis of the residual strength and deformation behavior of liquefied soils and their impact on structures.

6. Mitigation measures: Overview of various ground improvement techniques and design strategies for mitigating the effects of soil liquefaction on structures.

7. Performance-based earthquake engineering: Introduction to the performance-based earthquake engineering approach and its application to soil liquefaction problems.

'Soil Liquefaction During Earthquakes' serves as a valuable reference for researchers, engineers, and students working in the field of geotechnical earthquake engineering. It provides a thorough understanding of the phenomenon of soil liquefaction and offers practical guidance for evaluating and mitigating its effects on structures during earthquakes.