Title An experimental study of the heat generated during cyclic compressive loading of frozen soils
Author Zhang Shujuan; Lai Yuanming; Sun Zhizhong; Chan Xiaoxiao
Author Affil Zhang Shujuan, Chinese Academy of Sciences, Cold and Arid Regions Environmental and Engineering Research Institute, State Key Laboratory of Frozen Soil Engineering, Lanzhou, China
Source Cold Regions Science and Technology, 67(3), p.165-170, . Publisher: Elsevier, Amsterdam, Netherlands. ISSN: 0165- 232X
Publication Date July 2011
Notes In English. Based on Publisher- supplied data GeoRef Acc. No: 309688
Index Terms elastic waves; frozen ground; frozen ground compression; loading; measurement; soils; soil temperature; stresses; temperature; tests; unfrozen water content; amplitude; compression; cyclic loading; frequency; heating; stress; testing; water content
Abstract Based on the results from a series of testing with temperature monitored, using embedded thermistor temperature sensor in frozen specimen during cyclic compressive loading, it is known that, when the environmental temperature surrounding the specimen keeps constant, the temperature in the frozen specimen increases with the time of load lasted, and the temperature rise keeps getting bigger with increasing stress amplitude, load frequency and coarse particle content included in the specimen; whereas it is basically unchanged when the water content is beyond the saturated value at -0.5C. Additionally, the results also show that in a given time range, along the radial direction of the specimen the temperature distribution is basically uniform, and along the axial one there is slight difference, not beyond 0.05C; when the time is beyond the given one, the temperature rise, on the same cross- section of the specimen, is much obvious for the central point than for any other point.
URL http://hdl.handle.net/10.1016/j.coldregions.2011.02.012
Publication Type journal article
Record ID 65006410