Development of a new-type Tsunami resilient breakwater using soil blocks with cement-mixing and mechanical dehydration technology
| Project/Area Number |
25289149
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Geotechnical engineering
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| Research Institution | Kyushu University |
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Principal Investigator |
Kasama Kiyonobu 九州大学, 工学(系)研究科(研究院), 准教授 (10315111)
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| Co-Investigator(Kenkyū-buntansha) |
ZEN KOUKI 九州大学, 大学院工学研究院, 特任教授 (50304754)
FURUKAWA ZENTARO 九州大学, 大学院工学研究院, 助教 (70735985)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2015: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2014: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2013: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
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| Keywords | 浚渫 / リサイクル / 高強度 / 大型化 / 固化処理土 / 防災 / 津波 / 消波 |
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| Outline of Final Research Achievements |
Mechanical properties and the applicability for road pavement and coastal protection of soil block produced by cement-mixing and mechanical dehydration are evaluated. In addition, this study proposes a formula to calculate the stable weight of soil block underneath breakwater foundation in consideration of the overflow and seepage flow induced by tsunami based on the theoretical force balance between frictional resistance of soil block, the tractive force of the water flow over the caisson to the soil block and seepage force thorough underneath breakwater foundation. A series of hydraulic model experiments were conducted on the scale of 1/100 for Kamaishi Bay breakwaters as the subject in order to confirm the effectiveness of the proposed formula. Using the test results, the stability of the soil block underneath breakwater foundation was evaluated from the geotechnical engineering point of view as well as the hydrodynamical point of view.
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Report
(4 results)
Research Products
(30 results)
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[Journal Article] 高圧脱水固化して作製した浚渫土砂ブロックの材料特性2015
Author(s)
堂本 佳世, 笠間 清伸, 平澤 充成, 善 功企, 古川 全太郎, 八尋 裕一, 中道 正人, 坂本 光信, 上田 達也, 片桐 雅明, 山本 修司, 川原 修, 長野 敏之
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Journal Title
第11回環境地盤工学シンポジウム発表論文集
Volume: none
Pages: 343-346
Related Report
Peer Reviewed
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[Journal Article] Mechanical and load transmission properties of soil-concrete block2015
Author(s)
Kayo Doumoto, Kiyonobu KASAMA, Mitunari Hirasawa, Kouki Zen, Zentaro Furukawa, Yuichi Yahiro, Masato Nakamichi, Mitsunobu Sakamoto, Tatsuya Ueda, Masaaki Katagiri, Shuji Yamamoto, Osamu Kawahara, Toshiyuki Nagano
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Journal Title
Japanese Geotechnical Society Special Publication
Volume: 1
Issue: 5
Pages: 27-31
DOI
NAID
ISSN
2188-8027
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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