Influence of design high water level, warm index, and maximum snow depth on deterioration rate of wooden crib dams
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- DANG Quoc Dung
- United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology
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- ISHIKAWA Yoshiharu
- Institute of Symbiotic and Technology, Tokyo University of Agriculture and Technology
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- SHIRAKI Katsushige
- Institute of Symbiotic and Technology, Tokyo University of Agriculture and Technology
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抄録
There are many researches on deterioration rate of wood, but almost these researches just focused on finding out the deterioration rate according to time directly basing on the in-field sampling. These researches mentioned that weather factors are the reasons that cause the deterioration of wood ; however, did not show the relationship between the deterioration rates with these factors. Therefore, we have measured the deterioration from 6.0 to 9.0 years at the seven wooden crib dams in Kyoto Prefecture. Wood species are Cryptomeria japonica (Sugi) and Chamaecyparis obtusa (Hinoki). In addition, we calculated the design high water level of overflow depth, warm index, and maximum snow depth at the dam sites to clarify the relationships between them. The design high water level was calculated from Manning's formula. Warm index and maximum snow depth were obtained from the previous studies. The obtained results showed that there is a significant relationship between deterioration rates with design high water level. In the case of dam built at the torrent bed, the warm index and maximum snow depth have not much influence on the deterioration rate.
収録刊行物
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- Journal of the Japan Society of Erosion Control Engineering
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Journal of the Japan Society of Erosion Control Engineering 61 (4), 39-45, 2008
公益社団法人 砂防学会
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詳細情報 詳細情報について
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- CRID
- 1390001205479058560
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- NII論文ID
- 130004997114
- 10023916741
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- NII書誌ID
- AN0012035X
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- ISSN
- 21874654
- 02868385
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- NDL書誌ID
- 9735393
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可