Hydraulic anisotropy behavior of compacted soil

Harianto Rahardjo, Alfrendo Satyanaga, Leong Eng Choon, Priono

Research output: Contribution to conferencePaperpeer-review

2 Citations (Scopus)

Abstract

Analysis of water flow in unsaturated soils is very important in many geotechnical applications. Many seepage analyses commonly assume soils are isotropic in order to simplify the numerical analyses. However, the hydraulic anisotropy behavior of a soil in the field can be a significant factor in affecting water flow within soil layer during rainfall. Previous research has not studied comprehensively the hydraulic anisotropy behavior of unsaturated soil. In this study, laboratory experiments were carried out on horizontal-layering (HL) and vertical-layering (VL) compacted soil specimens. The scope of the study included determination of soilwater characteristic curve using Tempe cell and determination of saturated permeability using conventional triaxial cell. The results indicated that hydraulic anisotropy can be associated with the ratio of the equalization time during SWCC tests between HL and VL specimens. The soil specimen compacted at wet of optimum has a higher hydraulic anisotropy as compared to that compacted at dry of optimum. In addition, the soil with a higher percentage of fine particles has a lower hydraulic anisotropy as compared to that with a lower percentage of fine particles.

Original languageEnglish
Pages1241-1244
Number of pages4
Publication statusPublished - 2017
Externally publishedYes
Event19th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2017 - Seoul, Korea, Republic of
Duration: Sep 17 2017Sep 22 2017

Conference

Conference19th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2017
CountryKorea, Republic of
CitySeoul
Period9/17/179/22/17

Keywords

  • Hydraulic anisotropy
  • Laboratory experiments
  • Saturated permeability
  • Soil-water characteristic curve

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

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