Indirect measurement of suction

被引：99

作者：

Bulut R. ^{[1
]}

Leong E.C. ^{[2
]}

机构：

[1] School of Civil and Environmental Engineering, Oklahoma State University, Stillwater, OK 74078

[2] School of Civil and Environmental Engineering, Nanyang Technological University, Singapore

来源：

Geotech. Geol. Eng. | 2008年 / 6卷 / 633-644期

关键词：

Chilled-mirror; Electrical conductivity; Filter paper; Psychrometer; Soil suction; Thermal conductivity; Thermocouple; Transistor;

D O I：

10.1007/s10706-008-9197-0

中图分类号：

学科分类号：

摘要：

This paper reports on indirect soil suction measurement methods. Indirect suction measurement techniques measure the moisture equilibrium condition of the soil instead of suction. The moisture equilibrium condition of the soil can be determined by primary means as in vapor pressure, secondary means as through another porous medium or tertiary means as in measuring other physical properties of the porous medium that indicates its moisture equilibrium condition. Indirect suction measurement techniques employing primary means include thermocouple psychrometers, transistor psychrometer and chilled-mirror psychrometer. Indirect suction measurement techniques employing secondary means includes the filter paper method and indirect suction measurement techniques employing tertiary means include thermal conductivity sensors and electrical conductivity sensors. These techniques have been widely used in engineering practice and in research laboratories. However, each of these techniques has its own limitations and capabilities, and active research into improving these techniques is ongoing in universities, research laboratories, and private sector. This paper outlines working principles, calibration, measurement, and application areas of these methods based on recent literature and practice. © Springer Science+Business Media B.V. 2008.

引用

页码：633 / 644

页数：11

共 34 条

[1]

Aitchison G.D., Richards B.G., A broad-scale study of moisture conditions in pavement subgrades throughout Australia, Moisture in Soils Beneath Covered Areas, pp. 198-204, (1965)

[2]

Albrecht B.A., Benson C.H., Beuermann S., Polymer capacitance sensors for measuring soil gas humidity in drier soils, Geotech Test J, 26, 1, pp. 1-9, (2003)

[3]

Standard test method for measurement of soil potential (suction) using filter paper, 1994 Annual Book of ASTM Standards, (1994)

[4]

Standard test methods for determination of the soil water characteristic curve for desorption using a hanging column, pressure extractor, chilled mirror hygrometer, and/or centrifuge, 2003 Annual Book of ASTM Standards.,, (2003)

[5]

Blatz J.A., Graham J., Elastic-plastic modelling of unsaturated soil using results from a new triaxial test with controlled suction, Geotechnique, 53, 1, pp. 113-122, (2003)

[6]

Bulut R., Wray W.K., Free energy of water - Suction - In filter papers, Geotech Test J, 28, 4, pp. 355-364, (2005)

[7]

Bulut R., Aubeny C.P., Lytton R.L., Unsaturated soil diffusivity measurements, International Symposium on Advanced Experimental Unsaturated Soil Mechanics, (2005)

[8]

Bulut R., Lytton R.L., Wray W.K., Soil suction measurements by filter paper, Expansive Clay Soils and Vegetative Influence on Shallow Foundations, pp. 243-261, (2001)

[9]

Bulut R., Hineidi S.M., Bailey B., Suction measurements - Filter paper and chilled mirror psychrometer, Proceedings of the Texas Section American Society of Civil Engineers, (2002)

[10]

Bulut R., Park S.-W., Lytton R.L., Comparison of total suction values from psychrometer and filter paper methods, Unsaturated Soils for Asia. Proceedings of the Asian Conference on Unsaturated Soils, pp. 269-273, (2000)

← 1 2 3 4 →