Promotion of Thawing Frozen Soil by Shock Wave Loading

Abstract:

The aim of study is to confirm a new technique that can crush the frozen soil and/or ice block using underwater shock wave generated by the underwater explosion of explosive. This technique can lead to the earlier sowing, which can have the larger harvest because the duration of sunshine increases. Especially, in Hokkaido prefecture, Japan, if the sowing is carried out in April, we can expect to have 150% of harvest in the ordinary season. This technique is effective against the cold regions, for example, Russia, Norway, and Sweden, etc. In order to check about that influence we tried to give an actual frozen soil a shock wave. We could get a result that existence of water layer serves an important role in promotion of thawing by the shock loading to the frozen soil. That role was confirmed from the result of numerical simulation.

• Periodical: Materials Science Forum (Volume 767)
• Pages: 205-210
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.767.205
• Online since: July 2013
• Authors: Toshiaki Watanabe, Hideki Hamashima, Hironori Maehara, Kazuyuki Hokamoto, Shigeru Itoh
• Keywords: Explosion, Frozen Soil, Shock Wave, Thawing

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