Numerical Study on Effect of Covered Water in Thawing Frozen Soil by Explosive Load

Hideki Hamashima; Toshiaki Watanabe; Hironori Maehara; Kazuyuki Hokamoto; Shigeru Itoh

doi:10.4028/www.scientific.net/MSF.767.211

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A Method of Explosive Forming Process for Making a Palm and a Back of Human Hand
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Improvement Effect of Discharge Circuit for the Underwater Shock Wave
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Promotion of Thawing Frozen Soil by Shock Wave Loading
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Numerical Study on Effect of Covered Water in Thawing Frozen Soil by Explosive Load
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HomeMaterials Science ForumMaterials Science Forum Vol. 767Numerical Study on Effect of Covered Water in...

Numerical Study on Effect of Covered Water in Thawing Frozen Soil by Explosive Load

Abstract:

It is known to be able to expect the improvement of the harvest if the cropping time can be made early in a cold region such as Russia, Norway, Sweden and Hokkaido in Japan. Therefore, for the purpose of making cropping time early as much as possible, we researched the destruction of the frozen soil by the explosive. In the simple experiment, as compared with the experiment which placed the explosive directly on top of the frozen soil, it broke greatly in the experiment which poured out water 20 mm in height after placing an explosive directly on top of the frozen soil. Furthermore, it was found that the thawing time of residual frozen soil in the experiment using water is shorter than without water. In this research, in order to investigate the effect of the covered water in thawing frozen soil by explosive load, the numerical simulation was performed. The result of the numerical simulation was well in agreement with the experimental result, and it was clarified that destruction effect is increased by covering with water.

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Periodical:

Materials Science Forum (Volume 767)

Pages:

211-216

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.767.211

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Online since:

July 2013

Authors:

Hideki Hamashima, Toshiaki Watanabe, Hironori Maehara, Kazuyuki Hokamoto, Shigeru Itoh

Keywords:

Frozen Soil, Numerical Simulation, Underwater Shock Wave

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