Dynamic Characteristics of Saturated Silty Soil Ground Treated by Stone Column Composite Foundation

A shaking table model test was carried out to develop an understanding of the performance improvement of saturated silty soil ground using stone column composite foundation as reinforcement. It is found that at less than 0.161 g loading acceleration, soil between piles has not yet been liquefied, th...

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Main Authors: Yongxiang Zhan, Guanlu Jiang, Hailin Yao
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:Advances in Materials Science and Engineering
Online Access:http://dx.doi.org/10.1155/2014/745386
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author Yongxiang Zhan
Guanlu Jiang
Hailin Yao
author_facet Yongxiang Zhan
Guanlu Jiang
Hailin Yao
author_sort Yongxiang Zhan
collection DOAJ
description A shaking table model test was carried out to develop an understanding of the performance improvement of saturated silty soil ground using stone column composite foundation as reinforcement. It is found that at less than 0.161 g loading acceleration, soil between piles has not yet been liquefied, the response acceleration scarcely enlarges, and the shear displacement almost does not appear in silty soil. At 0.252 g loading acceleration, as a result of liquefaction of soil between piles, the response acceleration increases rapidly and reaches its peak, and the shear displacement of silty soil increases significantly. At 0.325 g loading acceleration, the integral rigidity of foundation decreases greatly, which reduces its capability of vibration transmission and result in the response acceleration amplification coefficient is less than that at the former loading acceleration, but the shear displacement of silty soil further increases. The stone column composite foundation can greatly reduce both the shear displacement and the settlement of ground compared with untreated foundation. Under the condition of 7-degree seismic fortification, the design meets seismic resistance requirements.
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institution Kabale University
issn 1687-8434
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language English
publishDate 2014-01-01
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record_format Article
series Advances in Materials Science and Engineering
spelling doaj-art-1f88ec475b5d488dae80a48632a97a5c2025-02-03T05:53:24ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422014-01-01201410.1155/2014/745386745386Dynamic Characteristics of Saturated Silty Soil Ground Treated by Stone Column Composite FoundationYongxiang Zhan0Guanlu Jiang1Hailin Yao2Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, ChinaSchool of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaInstitute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, ChinaA shaking table model test was carried out to develop an understanding of the performance improvement of saturated silty soil ground using stone column composite foundation as reinforcement. It is found that at less than 0.161 g loading acceleration, soil between piles has not yet been liquefied, the response acceleration scarcely enlarges, and the shear displacement almost does not appear in silty soil. At 0.252 g loading acceleration, as a result of liquefaction of soil between piles, the response acceleration increases rapidly and reaches its peak, and the shear displacement of silty soil increases significantly. At 0.325 g loading acceleration, the integral rigidity of foundation decreases greatly, which reduces its capability of vibration transmission and result in the response acceleration amplification coefficient is less than that at the former loading acceleration, but the shear displacement of silty soil further increases. The stone column composite foundation can greatly reduce both the shear displacement and the settlement of ground compared with untreated foundation. Under the condition of 7-degree seismic fortification, the design meets seismic resistance requirements.http://dx.doi.org/10.1155/2014/745386
spellingShingle Yongxiang Zhan
Guanlu Jiang
Hailin Yao
Dynamic Characteristics of Saturated Silty Soil Ground Treated by Stone Column Composite Foundation
Advances in Materials Science and Engineering
title Dynamic Characteristics of Saturated Silty Soil Ground Treated by Stone Column Composite Foundation
title_full Dynamic Characteristics of Saturated Silty Soil Ground Treated by Stone Column Composite Foundation
title_fullStr Dynamic Characteristics of Saturated Silty Soil Ground Treated by Stone Column Composite Foundation
title_full_unstemmed Dynamic Characteristics of Saturated Silty Soil Ground Treated by Stone Column Composite Foundation
title_short Dynamic Characteristics of Saturated Silty Soil Ground Treated by Stone Column Composite Foundation
title_sort dynamic characteristics of saturated silty soil ground treated by stone column composite foundation
url http://dx.doi.org/10.1155/2014/745386
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AT guanlujiang dynamiccharacteristicsofsaturatedsiltysoilgroundtreatedbystonecolumncompositefoundation
AT hailinyao dynamiccharacteristicsofsaturatedsiltysoilgroundtreatedbystonecolumncompositefoundation