查詢結果分析
相關文獻
- 應用UAV影像建置現地堰塞壩三維模型
- 應用UAV影像於鳳凰谷崩塌與堰塞壩之分析
- 人體三維模型與服裝結構關係之研究
- 多重疊航測影像中人工建築物三維模型之重建
- Massively Parallel Computing of Shortest Raypath and Traveltime in 2-D and 3-D Models
- A Modified 3D Quick Hull Algorithm
- 三維街廓模型之精準度對於火災模擬影響之研究
- 植基於空間切割之三維模型秘密分享技術之介紹
- Protector Revealed: An Initiative to Archaeologically Document, Interpret and Showcase an Historic Australian Warship with Laser Scanning Technology
- 漸進式三維模型分享技術
頁籤選單縮合
題名 | 應用UAV影像於鳳凰谷崩塌與堰塞壩之分析=Application of UAV Imagery to Analyze Phoenix Valley Landslide and Landslide Dam |
---|---|
作者 | 楊明德; 黃凱翔; 趙智凡; | 書刊名 | 中華水土保持學報 |
卷期 | 49:1 2018.03[民107.03] |
頁次 | 頁40-48 |
分類號 | 434.273 |
關鍵詞 | 三維模型; 壩體穩定度; UAV; IBM; 3D model; Dimensionless blockage index; |
語文 | 中文(Chinese) |
中文摘要 | 堰塞湖溢壩可能演變成潰堤,瞬間大量的土石流沖向下游,對於下流地區造成嚴重二次災害風險。2013年6月2日台灣發生芮氏規模6.3級地震,造成南投縣鳳凰谷鳥園上游南清水溝溪流域內邊坡崩塌,阻礙南清水溝溪形成一天然堰塞壩。為分析此崩塌之堆積土方量及堰塞壩穩定性,評估其對下游住戶之影響性,本研究使用無人載具飛行器(Unmanned Aerial Vehicle, UAV)拍攝現場照片,以影像基礎建模(Image-Based Modeling, IBM)快速地重構崩塌邊坡與堰塞壩之三維場景模型。研究經線性約制獲得一絕對尺度但為相對坐標系之模型,此模型可計算崩塌土方量及計算無因次阻塞指標(Dimensionless Blockage Index,DBI)以評估壩體穩定性。成果顯示崩塌土方量為136,588 m^3,土石壩DBI值為3.37,屬不穩定的狀態,提供管理單位做後續處置之依據。 |
英文摘要 | Landslide dam breaking can be a severe threat to the downstream area because of the damage caused by massive debris flow as a secondary disaster. A magnitude 6.3 earthquake struck Taiwan on June 2, 2013, and triggered a landslide, which resulted in the formation of a natural landslide dam in the South Qingshuigou watershed near the Phoenix Valley Bird Park. To efficiently estimate the landslide’s scale and evaluate the landslide dam’s stability, this study used an unmanned aerial vehicle to photograph the landslide scene and employed image-based modeling (IBM) approaches to construct a three-dimensional (3D) model of the landslide scene. This study also performed coordinate transformation using length constraints to obtain a 3D model at an absolute scale. The dimensionless blockage index (DBI) could be calculated for the landslide dam by using spatial information retrieved from the constructed 3D model. The volume of this earthwork was estimated as 136,588 m3, and the DBI of the landslide dam was 3.37, indicating that the landslide dam was unstable. The constructed model provides timely and precise 3D geoinformation and can be used as a reference for aftermath strategizing. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。