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

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Chapter 4

Application of the Vacuum Preloading Method in Soil Improvement Projects

Jian Chu1; Shuwang Yan2    1 Professor and James M. Hoover Chair in Geotechnical Engineering, Iowa State University, USA; Nanyang Technological University, Singapore2 Geotechnical Research Institute, Tianjin University, Tianjin, China

Abstract

The vacuum preloading method has been used in a number of countries for soil improvement and land reclamation works. Prefabricated vertical drains are normally used together with the vacuum preloading technique. When a surcharge load larger than the vacuum load is required, a combined vacuum and fill surcharge preloading method is also adopted. The mechanism of the vacuum preloading method is explained by examining the ...

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