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Ground Improvement Case-Histories by Cholachat Rujikiatkamjorn, Jian Chu, Buddhima Indraratna

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Chapter 12

Interpretation of Penetration Resistance Data Associated with PVD Installation for Predicting Differential Settlement in Soft Ground

Yoichi Watabe    Port and Airport Research Institute, Japan

Abstract

Dredged soil dumped into a reclamation facility is generally heterogeneous. If the reclamation is conducted via hydraulic transportation, large particles deposit around the outlets of pipes, and fine particles deposit away from the outlets, resulting in significant grain size segregation. Therefore, ground improvement by accelerating the consolidation with prefabricated vertical drains (PVDs) may result in unexpected differential settlement. In this chapter, partial sandy layers in a dredged soil deposit were identified in the form ...

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