Determination Permeability Coefficient from Piezocone

The permeability coefficient of soil profile is one of the problems concerned by engineers, and the determination of permeability coefficient method mainly relies on the laboratory permeability test and field pumping test, but these tests are time-consuming and inefficient, and especially the permea...

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Main Authors: Qiang Wang, LiYuan Tong
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:Advances in Materials Science and Engineering
Online Access:http://dx.doi.org/10.1155/2014/396428
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author Qiang Wang
LiYuan Tong
author_facet Qiang Wang
LiYuan Tong
author_sort Qiang Wang
collection DOAJ
description The permeability coefficient of soil profile is one of the problems concerned by engineers, and the determination of permeability coefficient method mainly relies on the laboratory permeability test and field pumping test, but these tests are time-consuming and inefficient, and especially the permeability coefficient of soil under the condition of partial drainage was difficult to determine; in this paper, the modern digital CPTU technology was used. Dimensional permeability KT was defined by using the dimensionless normalized cone tip resistance Qt, friction factor Fr, and pore pressure ratio Bq, these parameters enable plots of Bq-Qt, Fr-Qt, Bq-Fr to be contoured KT and hence for permeability coefficient. The relationship has been applied to Nanjing 4th Yangtze river bridge, and compared with laboratory penetration test. The results indicate that the method can accurately determine the permeability coefficient of soil under partial drainage condition and provide the theoretical basis for engineering application.
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spelling doaj-art-8b4d17e9f9d74e69a1cb62c903dfa3d42025-08-20T02:09:27ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422014-01-01201410.1155/2014/396428396428Determination Permeability Coefficient from PiezoconeQiang Wang0LiYuan Tong1Department of Civil Engineering, Anhui University of Science and Technology, Huainan Anhui 232001, ChinaInstitute of Geotechnical Engineering, Southeast University, Nanjing, Jiangsu 210096, ChinaThe permeability coefficient of soil profile is one of the problems concerned by engineers, and the determination of permeability coefficient method mainly relies on the laboratory permeability test and field pumping test, but these tests are time-consuming and inefficient, and especially the permeability coefficient of soil under the condition of partial drainage was difficult to determine; in this paper, the modern digital CPTU technology was used. Dimensional permeability KT was defined by using the dimensionless normalized cone tip resistance Qt, friction factor Fr, and pore pressure ratio Bq, these parameters enable plots of Bq-Qt, Fr-Qt, Bq-Fr to be contoured KT and hence for permeability coefficient. The relationship has been applied to Nanjing 4th Yangtze river bridge, and compared with laboratory penetration test. The results indicate that the method can accurately determine the permeability coefficient of soil under partial drainage condition and provide the theoretical basis for engineering application.http://dx.doi.org/10.1155/2014/396428
spellingShingle Qiang Wang
LiYuan Tong
Determination Permeability Coefficient from Piezocone
Advances in Materials Science and Engineering
title Determination Permeability Coefficient from Piezocone
title_full Determination Permeability Coefficient from Piezocone
title_fullStr Determination Permeability Coefficient from Piezocone
title_full_unstemmed Determination Permeability Coefficient from Piezocone
title_short Determination Permeability Coefficient from Piezocone
title_sort determination permeability coefficient from piezocone
url http://dx.doi.org/10.1155/2014/396428
work_keys_str_mv AT qiangwang determinationpermeabilitycoefficientfrompiezocone
AT liyuantong determinationpermeabilitycoefficientfrompiezocone