Abstract
Christchurch and the Canterbury region in New Zealand were devastated in 2010–2011 by a series of powerful earthquakes. The Christchurch area experienced widespread liquefaction that caused extensive damage. One critical problem facing the rebuilding effort is that the land remains at risk of liquefaction in future earthquakes. Therefore, effective engineering solutions must be developed to increase the resilience of homes and low-rise structures. To this end, a comprehensive series of full-scale field trials of multiple shallow ground improvement methods is underway. Initial field trials at one site involving five test panels of different ground improvements are presented. Each test panel and two unimproved natural soil test panels have been instrumented and characterized before shaking. A large mobile shaker, called T-Rex, has been used to perform an increasing sequence of dynamic horizontal loads to each test panel. The results are being analyzed but good and poor performance can already be differentiated.
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