期刊
GEOTECHNIQUE
卷 59, 期 4, 页码 339-353出版社
ICE PUBLISHING
DOI: 10.1680/geot.2009.59.4.339
关键词
deformation; laboratory tests; partial saturation; shear strength; suction; temperature effects
Experimental research is conducted on a compacted sample of silt using a triaxial equipment modified for testing unsaturated soils at elevated temperatures. An extensive array of isothermal and non-isothermal tests is conducted, including temperature-controlled soaking and desaturation tests, temperature- and suction-controlled isotropic consolidation tests, and suction-controlled thermal loading and unloading tests. Temperature values applied ranged from 25 degrees C to 60 degrees C, and the suction values varied from 0 to 300 kPa. Baseline data are presented on the influences of temperature and suction on critical-state parameters, yield surface, preconsolidation pressure, strength properties, and water retention characteristics of the soil. All data are carefully analysed and prevailing trends are highlighted.
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