Laboratory study of the acoustic properties of sand samples containing ice

Авторы: Dugarov G.A.   (ИНГГ СО РАН)   Duchkov A.A.   (ИНГГ СО РАН)   Fokin M.I.   (ИНГГ СО РАН)  
дата публикации: 2018
​The paper considers a series of experiments with sand samples containing ice. The acoustic measurements were performed in specialized laboratory setup which allows also to form synthetic hydrate-bearing samples in order to find differences between ice and methane hydrate. We find that the velocities of compressional and shear waves depend on the rate of temperature drop below 0°C. During the long-time maintaining of the constant negative temperature the decreasing of the velocities was observed. These dependences can possibly be explained by that in a case of quick freezing formed ice is not energetically favourable, after formation ice particles reconstruct into the pore space with less mechanical stress.
первоисточник: IOP Conference Series: Earth and Environmental Science. The Fifth All-Russian Conference with International Participation "Polar Mechanics" (Novosibirsk, Russian Federation, 9-11 October 2018)
страницы: 012020-012020
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