This paper presents a simplified procedure for predicting earthquake-induced level and sloped ground failure, namely liquefaction and shear failure. It consists of a framework where cyclic stress ratio (CSR), static stress ratio (SSR) and undrained shear strength (USS) are formulated considering simple shear conditions, which…
Predicting the severity of liquefaction induced ground damage is the key outcome from a liquefaction assessment. Ishihara (1985) developed a simple and logical method to predict the occurrence of sand boils, ground fissures and other features of liquefaction damage. This paper examines the effectiveness of…
The damage to Christchurch’s lifelines has been observed widely across the region as a result of the Canterbury earthquake sequence. In order to incorporate earthquake resilience into infrastructure repair and design, a cost effective and non-intrusive method of liquefaction mitigation is required. Commonly applied methods…
During past major earthquakes in Christchurch, enormous damage to engineered structures and lifelines has been caused by liquefaction-induced ground failures. Standard penetration test is the most commonly used in situ test for soil characterization of liquefaction resistance. However this test has some limitations. A major…
This paper sets out a simplified approach by which the practical foundation designer can undertake the relevant calculations to satisfy the requirements for deep foundation design in seismic areas. The following matters are dealt with: Design issues that should be addressed; Pile design for axial…