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| 題 名 | 地震後之土石流潛勢溪流評估劃設--以花蓮0403地震為例=Post-Earthquake Assessment and Mapping of Potential Debris Flow Torrents--Example of 0403 Hualien Earthquake |
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| 作 者 | 簡榮興; 曹鼎志; 陳振宇; 黃效禹; 游雅筑; | 書刊名 | 中興工程 |
| 卷 期 | 167 2025.04[民114.04] |
| 頁 次 | 頁(I)1-(I)8 |
| 分類號 | 434.273 |
| 關鍵詞 | 0403花蓮地震; 新生崩塌; 土石流; 影響範圍; 0403 Hualien earthquake; Landslide; Debris flow; Impact area; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 2024 年 4 月 3 日於花蓮地區發生芮氏規模 7.2 地震,並同時誘發東部山區大量邊坡崩塌,本研究參考農村 水保署於震後影像判釋之1,942處新生崩塌(面積約1,521.03公頃),初步將新生崩塌與鄰近住戶等資料比對後, 針對新生崩塌非位於土石流潛勢溪流集水區,且具溪谷地形及周遭疑似具保全住戶等條件之野溪,進一步辦理現 勘以評估劃設為土石流潛勢溪流。本研究以 4 月 11 日所判釋之 Type B -台 9 丁 65.5K 和仁車站土石流為例,於 現地勘查後新增為土石流潛勢溪流,該條溪流於 0403 地震後,分別於 2024 年 4 月 22 日、6 月 29 日之降雨條 件引致土石流,造成下游臺鐵員工宿舍及鐵、公路淤埋,本研究將事件後之災害範圍驗證影響範圍之合理性,期 能提升土石流防災工作。 |
| 英文摘要 | A magnitude 7.2 earthquake occurred on April 3, 2024 in the Hualien area, the earthquake induced massive slope failures in the eastern Taiwan. 1,942 newly triggered landslides (1,521.03 hectares) were identified by the Agency of Rural Development and Soil and Water Conservation (ARDSWC) after the earthquake. For newborn landslides that are not located in the watershed of current potential debris flow torrents but with the topography of the valley and residents nearby, further investigation to evaluate if the torrent fulfill the elements of enlisted as a potential debris flow torrents. This study took the torrent at Provincial Highway 9D 65.5K and Heren Train Station for example, it was added as a potential debris flow torrent after the on-site investigation in late April. The rainfall events on April 22, 2024 and June 29, 2024 caused debris flows, which resulted in the damage of Taiwan Railway dormitories and the railway and highway. This study compared the designated area and the disaster area to show the effectiveness of the mapped inundation range. The result of this study is the fundamental data for disaster prevention work of debris flow. |
本系統中英文摘要資訊取自各篇刊載內容。