Study on Liquefaction Safty of Reclamation Dike in Japan

日本围海堤液化安全研究

• 批准号: 06660305
• 负责人: YOSHITAKE Yoshitaka
• 金额: $ 1.34万
• 依托单位: Ehime University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06660305/
• 关键词: Water Area Reclamation Project; Reclamation Dike; Liquefaction; Seismic Hazard; Aseismatic Design; 地震危険度解析

I investigated the water area recla-mation projects in Japan after the World War II.Firstly, I explained the institution of water area reclamation projects.Secondly, I classified these projects and made the distribution maps of the projects.From these results, the following was found worthy of being reported :1.Sea coast reclamation projects are concen-trated around Ariake Sea, Yatsushiro Sea, Seto Inland Sea, Ise Bay, Mikawa Bay and Kagoshima Bay where tidal range is remarkable.2.All projects above mentioned except Kagoshima bay belong to alluvial plains.3.Water area reclamation projects at lakes are almost all distributed around large lakes or brackish water lakes, i.e.Lake Shinji, Nakaumi, Lake Biwa, Lake Hamana, Kasumigaura, Imbanuma, Teganuma, Izunuma, Hachirogata, Lake Jusan.4.The total number of the sea coast reclamation projects is more than that of the water area reclamation projects.But the total project area and the tatal reclamation area of the latter are larger than those of the former.Thirdly, I examined seismic hazard of these reclamation dikes using equations of attenuation in detail. Then, I found that these reclamation dikes were allmost all to be investigated upon their liquefaction potential and mentioned that fundamental principle of aseismatic design of these reclamation dikes.

我对二战后日本的水域围垦项目进行了调查。首先，我解释了水域围垦项目的制度。其次，我对这些项目进行了分类，并制作了项目的分布图。根据这些结果，我得出以下结论：发现值得报道的地方：1.海岸填海工程集中在有明海、八代海、濑户内海、伊势湾、三河湾、鹿儿岛湾一带，潮差较大。 2.除鹿儿岛湾外，上述项目均属于冲积平原。3.湖泊水域围垦工程几乎都分布在大型湖泊或咸水湖周围，即宍道湖、中海、琵琶湖、滨名湖、霞浦、因班沼、手贺沼、伊豆沼、八郎湖、十三湖4.海岸围填工程总数多于水域面积但后者的工程总面积和填海工程总面积均大于前者。再次，利用衰减方程详细考察了这些填海堤坝的地震危险性。然后，我发现这些填海堤坝几乎都需要考察其液化潜力，并提到了这些填海堤坝抗震设计的基本原则。

项目成果

吉武美孝: "戦後干拓事業の変遷について-わが国の戦後干拓事業の実態に関する研究-" 農業土木学会論文集. 177号. 87-97 (1995)

Yoshitaka Yoshitake：“论战后填海工程的变化——日本战后填海工程的实际状况研究”日本农业和土木工程师学会学报第177. 87-97号（1995年）。

YOSHITAKE,Yoshitaka: "Change of Water Area Reclamation Projects-Investigation of water area reclamation projects in Postwar Japan-" Transactions of The Japanese Society of Irrigation, Drainage and Reclamation Engineering. No.177. 87-97 (1995)

YOSHITAKE，Yoshitaka：“水域围垦项目的变化-战后日本水域围垦项目的调查-”日本灌溉、排水和围垦工程学会会刊。