ACOUSTIC EMISSION OF FROZEN SOILS UNDER QUASI-STATIC MECHANICAL AND CYCLIC THERMAL LOADING

摘要

The effects of acoustic emission (AE) in soils during freezing and thawing under cyclic thermal and quasi-static mechanical loading have been studied. The composition and characteristics of the developed instrumentation set are presented. The informative AE parameters and primary data processing approaches were justified. The acoustic emission patterns of soil material behavior under the variable thermobaric conditions were obtained. The comparative tests were performed using static probing and ultrasonic scanning.