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題 名 | 莫拉克風災引致公路橋梁災害與案例分析=Analysis and Case Study of Highway Bridge Damage Caused by Typhoon Morakot |
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作 者 | 李維峰; 鄭世豪; 高邦基; 李宗霖; | 書刊名 | 地工技術 |
卷 期 | 122 2009.12[民98.12] |
頁 次 | 頁115-122 |
分類號 | 441.8 |
關鍵詞 | 莫拉克颱風; 公路橋梁; 土石流沖刷; 洪水沖刷; Morakot typhoon; Highway bridge; Debris scouring; Flow scouring; |
語 文 | 中文(Chinese) |
中文摘要 | 2009年8月6日莫拉克颱風(Morakot Typhoon)橫掃全台,除在各地創下歷史新高之雨量記錄外,造成之公路橋梁斷橋數量亦為歷史之最,其中尤以中南部地區受創程度最為嚴重。由於台灣地形險峻,當颱風挾帶豪大雨量,侵襲陡峭和不穩定邊坡而崩塌後,大量土石及漂流木伴隨洪水沖刷跨河橋梁,將造成橋梁與道路嚴重毀損,導致交通中斷,進而影響復修搶救工作。因此,本文藉由莫拉克颱風造成之橋梁災害的統計和案例分析,彙整各流域之橋梁破壞模式和所具之土石流及沖刷危害潛勢。冀能提供未來學術研究和橋梁工程設計及災後復建規劃之參考,以提升橋梁之耐土石流及洪水沖刷能力。 |
英文摘要 | On June August 2006, Typhoon Morakot invaded Taiwan island wide. Besides the record-breaking rainfall, Typhoon Morakot caused the most serious highway bridge damages ever, especially in central and southern Taiwan. With the steep rise and sink in geography, Taiwan is often seriously affected when huge amount of rainfall comes with typhoons that erode cliffy, unsteady hillsides to bring collapse resulting in volumes of mudflows and drift wood accompanied with bridge-scouring floods. It brings about acute harm to bridges and roads to induce traffic interruption, and further it impedes repair work. For this reason, this study applies the statistics of bridge damages and case analysis in Typhoon Morakot and synthesizes the various bridge damage models and their potentiality of flood scouring hazard. This research expects to provide references for future academic researches, bridge engineering design and post-disaster reconstruction in order to enhance bridge endurance of mudflows and flood scouring. |
本系統中英文摘要資訊取自各篇刊載內容。