Basic study on promotion of thawing frozen soil by shock loading
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....
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MULTIPHYSICS
2008-06-01
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| Series: | International Journal of Multiphysics |
| Online Access: | http://journal.multiphysics.org/index.php/IJM/article/view/46 |
| _version_ | 1827840373885501440 |
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| author | Toshiaki WATANABE Hironori MAEHARA Shigeru ITOH |
| author_facet | Toshiaki WATANABE Hironori MAEHARA Shigeru ITOH |
| author_sort | Toshiaki WATANABE |
| collection | DOAJ |
| description | 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. In the case of small processing area such as road repairing, frozen soil is thawed by using the heat of gas burner and/or the electric heater. It is not a suitable plan to apply these heating methods to agriculture, from the point of view enormous amount of processing area. Thawing technique for frozen soil is effective against the cold regions, for example, Russia, Norway, and Sweden, etc. At first, we carried out experiments using a detonating fuse and ice block. The propagation process of shock wave into the ice block was observed by means of a high-speed camera. 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. |
| first_indexed | 2024-03-12T07:32:47Z |
| format | Article |
| id | doaj.art-0483ce3a2d314d759bf11464d971812a |
| institution | Directory Open Access Journal |
| issn | 1750-9548 2048-3961 |
| language | English |
| last_indexed | 2024-03-12T07:32:47Z |
| publishDate | 2008-06-01 |
| publisher | MULTIPHYSICS |
| record_format | Article |
| series | International Journal of Multiphysics |
| spelling | doaj.art-0483ce3a2d314d759bf11464d971812a2023-09-02T21:36:58ZengMULTIPHYSICSInternational Journal of Multiphysics1750-95482048-39612008-06-012210.1260/17509540878541699269Basic study on promotion of thawing frozen soil by shock loadingToshiaki WATANABE0Hironori MAEHARA1Shigeru ITOH2Dept. of Ocean Mechanical Engineering, National Fisheries Univ., 2-7-1 Nagata-honmachi, Shimonoseki City, Yamaguchi 759-6595, JapanShock Wave and Condensed Matter Research Center, Kumamoto Univ. 2-39-1 Kurokami, Kumamoto City, Kumamoto 860-8555, JapanShock Wave and Condensed Matter Research Center, Kumamoto Univ. 2-39-1 Kurokami, Kumamoto City, Kumamoto 860-8555, JapanThe 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. In the case of small processing area such as road repairing, frozen soil is thawed by using the heat of gas burner and/or the electric heater. It is not a suitable plan to apply these heating methods to agriculture, from the point of view enormous amount of processing area. Thawing technique for frozen soil is effective against the cold regions, for example, Russia, Norway, and Sweden, etc. At first, we carried out experiments using a detonating fuse and ice block. The propagation process of shock wave into the ice block was observed by means of a high-speed camera. 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.http://journal.multiphysics.org/index.php/IJM/article/view/46 |
| spellingShingle | Toshiaki WATANABE Hironori MAEHARA Shigeru ITOH Basic study on promotion of thawing frozen soil by shock loading International Journal of Multiphysics |
| title | Basic study on promotion of thawing frozen soil by shock loading |
| title_full | Basic study on promotion of thawing frozen soil by shock loading |
| title_fullStr | Basic study on promotion of thawing frozen soil by shock loading |
| title_full_unstemmed | Basic study on promotion of thawing frozen soil by shock loading |
| title_short | Basic study on promotion of thawing frozen soil by shock loading |
| title_sort | basic study on promotion of thawing frozen soil by shock loading |
| url | http://journal.multiphysics.org/index.php/IJM/article/view/46 |
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