Journal Published Online: 23 August 2018
Volume 42, Issue 3

1-g Model Test on Internally Reinforced Granular Columns

CODEN: GTJODJ

Abstract

This article examines the influence of internally layered reinforcement on a fully penetrated sand column embedded in soft clay using a 1-g model test. The design parameters of the test model were chosen to emulate a geotextile-reinforced granular column prototype to ensure a comparable behavior. The performance of the internally reinforced sand columns was evaluated in terms of its load carrying capability and bulging behavior. The test results show that a reduction of spacing between two consecutive reinforcement layer discs allowed by a column with strong reinforcement will lead to an increase in the bearing capability of the column. Only a column design with a proper spacing/diameter ratio and reinforcement strength can ensure a column’s bearing capability with an increase in the reinforced column length. Reinforcing a granular column with a length exceeding the predominant bulging depth of a unreinforced column will be an effective mean to ensure its bearing capability.

Author Information

Hong, Yung-Shan
Department of Civil Engineering, Tamkang University, Tamsui, Taipei, Taiwan
Wu, Cho-Sen
Department of Civil Engineering, Tamkang University, Tamsui, Taipei, Taiwan
Chen, Guan-Long
Department of Civil Engineering, Tamkang University, Tamsui, Taipei, Taiwan
Chien, Chia-Wei
Department of Research and Development, Unimicron Technology Corporation, Taoyuan, Taiwan
Pages: 27
Price: $25.00
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Details
Stock #: GTJ20170332
ISSN: 0149-6115
DOI: 10.1520/GTJ20170332