A Temperature Controlled Triaxial Apparatus for Testing Unsaturated Soils

作者：Uchaipichat Anuchit; Khalili Nasser^*; Zargarbashi Saman

来源：Geotechnical Testing Journal, 2011, 34(5): 424-432.

DOI：10.1520/gtj103586

• temperature
• triaxial apparatus
• non-isothermal
• unsaturated soils
• volume change measurement
• image-processing

This paper describes a modified Bishop Wesley triaxial apparatus for testing unsaturated soils at elevated temperatures. The suction is applied using the axis translation technique. The cell liquid temperature is controlled through a heating element, and a thermal sensor installed inside the triaxial cell. Experiments are carried out at temperatures up to 60 degrees C. Potential difficulties in the use of the equipment are identified and solutions are discussed for their mitigation. The image-processing and the cell liquid measurement techniques are used to measure the overall volume change of the sample. The performance of these two techniques is reported.

• 出版日期2011-9