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The undrained cyclic strength of undisturbed and reconstituted Christchurch sands

The undrained cyclic strength of undisturbed and reconstituted Christchurch sands

This paper presents insights from recent advanced laboratory testing of undisturbed and reconstituted specimens of Christchurch silty-sands. The purpose of the testing was to establish the cyclic strength of silty-sands from sites in the Central Business District (CBD), where liquefaction was observed in 4 September…

Experience with gel-push sampling in New Zealand

Experience with gel-push sampling in New Zealand

The gel-push sampling technique was developed to try to provide an economic technique capable of obtaining high quality specimens of silty sands and sands. This paper describes two of the gel-push samplers which are now commercially available and describes their performance on recent projects carried out on…