Mini suction probe for matric suction measurements

Inge Meilani; Harianto Rahardjo; Eng Choon Leong; Delwyn G. Fredlund

doi:10.1139/t02-101

Mini suction probe for matric suction measurements

Inge Meilani, Harianto Rahardjo^*, Eng Choon Leong, Delwyn G. Fredlund

^*Corresponding author for this work

Nanyang Technological University

Research output: Contribution to journal › Article › peer-review

58 Citations (Scopus)

Abstract

A modified triaxial apparatus with mini suction probes was fabricated to study the matric suction along the specimen height during unsaturated triaxial testing. Three mini suction probes were placed at 3/4, 1/2, and 1/4 height of the specimen, each at 120° apart in the lateral direction. This paper presents the development of the mini probe for matric suction measurements. Evaluation of the performance shows that the fabricated mini probe provides a rapid response and accurate reading under negative and positive pore-water pressure changes. Matric suctions as high as 400 kPa were successfully measured on soil specimens over a time span of 15 h. On the other hand, the mini suction probes were also found to be able to measure a matric suction of 200 kPa for a longer period of 155 h.

Original language	English
Pages (from-to)	1427-1432
Number of pages	6
Journal	Canadian Geotechnical Journal
Volume	39
Issue number	6
DOIs	https://doi.org/10.1139/t02-101
Publication status	Published - 2002
Externally published	Yes

ASJC Scopus Subject Areas

Civil and Structural Engineering
Geotechnical Engineering and Engineering Geology

Keywords

Matric suction
Mid-height pore-water pressure measurement
Mini suction probe
Triaxial
Unsaturated soils

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10.1139/t02-101

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title = "Mini suction probe for matric suction measurements",

abstract = "A modified triaxial apparatus with mini suction probes was fabricated to study the matric suction along the specimen height during unsaturated triaxial testing. Three mini suction probes were placed at 3/4, 1/2, and 1/4 height of the specimen, each at 120° apart in the lateral direction. This paper presents the development of the mini probe for matric suction measurements. Evaluation of the performance shows that the fabricated mini probe provides a rapid response and accurate reading under negative and positive pore-water pressure changes. Matric suctions as high as 400 kPa were successfully measured on soil specimens over a time span of 15 h. On the other hand, the mini suction probes were also found to be able to measure a matric suction of 200 kPa for a longer period of 155 h.",

keywords = "Matric suction, Mid-height pore-water pressure measurement, Mini suction probe, Triaxial, Unsaturated soils",

author = "Inge Meilani and Harianto Rahardjo and Leong, {Eng Choon} and Fredlund, {Delwyn G.}",

year = "2002",

doi = "10.1139/t02-101",

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pages = "1427--1432",

journal = "Canadian Geotechnical Journal",

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TY - JOUR

T1 - Mini suction probe for matric suction measurements

AU - Meilani, Inge

AU - Rahardjo, Harianto

AU - Leong, Eng Choon

AU - Fredlund, Delwyn G.

PY - 2002

Y1 - 2002

N2 - A modified triaxial apparatus with mini suction probes was fabricated to study the matric suction along the specimen height during unsaturated triaxial testing. Three mini suction probes were placed at 3/4, 1/2, and 1/4 height of the specimen, each at 120° apart in the lateral direction. This paper presents the development of the mini probe for matric suction measurements. Evaluation of the performance shows that the fabricated mini probe provides a rapid response and accurate reading under negative and positive pore-water pressure changes. Matric suctions as high as 400 kPa were successfully measured on soil specimens over a time span of 15 h. On the other hand, the mini suction probes were also found to be able to measure a matric suction of 200 kPa for a longer period of 155 h.

AB - A modified triaxial apparatus with mini suction probes was fabricated to study the matric suction along the specimen height during unsaturated triaxial testing. Three mini suction probes were placed at 3/4, 1/2, and 1/4 height of the specimen, each at 120° apart in the lateral direction. This paper presents the development of the mini probe for matric suction measurements. Evaluation of the performance shows that the fabricated mini probe provides a rapid response and accurate reading under negative and positive pore-water pressure changes. Matric suctions as high as 400 kPa were successfully measured on soil specimens over a time span of 15 h. On the other hand, the mini suction probes were also found to be able to measure a matric suction of 200 kPa for a longer period of 155 h.

KW - Matric suction

KW - Mid-height pore-water pressure measurement

KW - Mini suction probe

KW - Triaxial

KW - Unsaturated soils

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JF - Canadian Geotechnical Journal

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Mini suction probe for matric suction measurements

Abstract

ASJC Scopus Subject Areas

Keywords

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