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2021 | OriginalPaper | Chapter

Jet Grouted Columns with Horizontal Slab as Ground Improvement Towards Liquefaction Mitigation

Authors : Myat Myat Phyo Phyo, Hemanta Hazarika, Hiroaki Kaneko, Tadashi Akagawa

Published in: Advances in Sustainable Construction and Resource Management

Publisher: Springer Singapore

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Abstract

A new countermeasure method of jet grout columns with horizontal slab in liquefaction mitigation is introduced in this study. In order to investigate the effectiveness of the proposed mitigation method, numerical studies on unimproved and improved ground were separately performed. Additionally, the validations of the numerical model geometry with boundary conditions and parameters used in UBC3D liquefaction model were conducted prior to the analyses to confirm the reliability of the numerical results. The effectiveness of the soil improvement method was assessed by comparing the changes in excess pore water pressure ratio, acceleration as well as distribution of shear stress and shear strain in the liquefiable soil before and after ground improvement. The results show that the new liquefaction mitigation method offers optimistic effect on control of shear deformation and excess pore water pressure.

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Metadata
Title
Jet Grouted Columns with Horizontal Slab as Ground Improvement Towards Liquefaction Mitigation
Authors
Myat Myat Phyo Phyo
Hemanta Hazarika
Hiroaki Kaneko
Tadashi Akagawa
Copyright Year
2021
Publisher
Springer Singapore
Book
Advances in Sustainable Construction and Resource Management

Print ISBN: 978-981-16-0076-0

Electronic ISBN: 978-981-16-0077-7

Copyright Year: 2021

DOI
https://doi.org/10.1007/978-981-16-0077-7_26