How to Estimate Cyclic Stress Ratio and Liquefaction of Sand Triggered by Earthquake

The liquefaction potential of sand can be estimated using a simplified procedure based on soil's strength (standard penetration test blow count normalized to the hammer energy and overburden pressure), vertical normal and effective stresses, and maximum acceleration at the ground caused by earthquake. This video explains how to obtain these parameters using a practical example. To learn how to normalize the SPT N values, watch this video called Correcting SPT N values to Hammer Energy and Overburden Pressure    • Correcting SPT N values to Hammer Ene...  

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How to estimate Liquefaction Resistance Factor and Liquefaction Potential Index    • How to Estimate Liquefaction Resistan...