Effect of Plastic Fine Content on the Static Liquefaction Potential of Sandy Soil

Author:

Dang Quang-Huy1ORCID,Reiffsteck Philippe2ORCID,Vu Minh-Ngoc34ORCID,Nguyen-Sy Tuan56,Pham Van-Hung1

Affiliation:

1. Department of Infrastructure Engineering, Hanoi University of Mining and Geology, Hanoi 100000, Vietnam

2. Université Gustave Eiffel, IFSTTAR (GERS/SRO), 77420 Champs sur Marne, France

3. Institute of Research and Development, Duy Tan University, Danang 550000, Vietnam

4. Faculty of Civil Engineering, Duy Tan University, Danang 550000, Vietnam

5. Laboratory for Computational Mechanics, Institute for Computational Science and Artificial Intelligence, Van Lang University, Ho Chi Minh City 700000, Vietnam

6. Faculty of Mechanical—Electrical and Computer Engineering, School of Technology, Van Lang University, Ho Chi Minh City 700000, Vietnam

Abstract

This study aims to investigate the effect of plastic fine content on the undrained monotonic behavior of sandy soils (mixtures of host sand and various plastic fine content from 0 to 25%), and in particular, their static liquefaction resistance (undrained shear strength). Illite Arvel is considered as a plastic fine to add to the host sand, the Fontainebleau sand. Binary mixture samples are reconstituted by using the moist tamping technique. A series of undrained triaxial tests were carried out to study the influence of different parameters, such as the fine content, the initial density index, the confining pressure, and the over-consolidation ratio (OCR) on the behavior of sandy soil mixture. Based on the results acquired from these tests, the liquefaction susceptibility of the sandy soil is discussed by using Chinese criteria.

Funder

Ministry of Education and Training of Vietnam

Publisher

MDPI AG

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