日本各地には、石油等を貯蔵・備蓄するタンクが多数設置されている。タンクの固有周期は直径と液深により計算することができ、通常の石油タンクに限っていえばおよそ5秒から10秒と非常に長い周期となる。そのため、これらは長周期地震動の影響を大きく受け、スロッシングなどにより火災が発生する可能性がある。本研究では、今後発生が予測されている巨大地震に対してもこうした事故の可能性が高いと考え、長周期地震動が原因となる石油タンクのスロッシング危険度の評価を行った。その際、多数のタンク高さなどを空撮画像から取得する手法を用いた。さらに、2011年東北地方太平洋沖地震の観測記録や想定南海トラフ巨大地震の予測波形を用いてスロッシング波高を計算し、溢流の有無などから京葉コンビナートに位置する石油タンクの危険性について評価を行った。
","subitem_description_language":"ja","subitem_description_type":"Other"},{"subitem_description":"Large tanks for storing petroleum are placed in various locations in Japan. The natural periods of liquid sloshing of these tanks are calculated from their diameters and contained liquid heights. The natural periods are approximately between 5 to 10 seconds and hence, petroleum tanks are affected by long-period seismic ground motion. Thus the sloshing phenomenon, oscillation of the contained liquid, may occur and sometimes fire will be associated. Considering this background, this study focuses on the sloshing phenomenon and the sloshing heights in the 2011 Tohoku-Oki earthquake were calculated to assess the fire risk in the Keiyo petrochemical industrial complex. The long-period ground motion due to the scenario Nankai-Trough earthquake was also employed for sloshing analysis at this site. From the calculation of sloshing heights and overflow amount of oil under various conditions, the method to prevent oil overflow was suggested for future earthquakes.
","subitem_description_language":"en","subitem_description_type":"Other"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"公益社団法人 日本地震工学会","subitem_publisher_language":"ja"},{"subitem_publisher":"JAPAN ASSOCIATION FOR EARTHQUAKE ENGINEERING","subitem_publisher_language":"en"}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.5610/jaee.16.10_1"}}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"上田 英臣","creatorNameLang":"ja"},{"creatorName":"UEDA Hideomi","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"山崎 文雄","creatorNameLang":"ja"},{"creatorName":"YAMAZAKI Fumio","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"リュウ ・ ウェン","creatorNameLang":"ja"},{"creatorName":"LIU Wen","creatorNameLang":"en"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_title":"長周期地震動による京葉コンビナートの石油タンクのスロッシング危険度評価","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"長周期地震動による京葉コンビナートの石油タンクのスロッシング危険度評価","subitem_title_language":"ja"},{"subitem_title":"Sloshing Assessment of Oil Tanks in Keiyo Petrochemical Industrial Complex under Long-Period Seismic Ground Motion","subitem_title_language":"en"}]},"item_type_id":"40001","owner":"1","path":["1670839190650"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2023-03-30"},"publish_date":"2023-03-30","publish_status":"0","recid":"5953","relation_version_is_last":true,"title":["長周期地震動による京葉コンビナートの石油タンクのスロッシング危険度評価"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-08T09:33:22.186698+00:00"}