ABSTRACT

The occurrence of liquefaction is affected by various geotechnical factors, which are classified into three categories: soil properties, geological conditions, and ground motion characteristics. The prediction of liquefaction involves investigating the potential occurrence of liquefaction of the ground based on certain information. Three factors are the most important to control the resistance of the ground against liquefaction: the ground is a loose sandy deposit, the ground water table is shallow and the ground is saturated, and the earthquake intensity is sufficiently high and the duration of earthquake shaking is sufficiently long. A variety of methods exists in practical engineering, from a simplified procedure which requires little formal analysis to a complex method in which the use of computers is necessary. This chapter classifies and explains these methods. It also describes the process the assessment and evaluation of the effect of liquefiable ground.