以攝影測量進行現地與實驗土石流沖積扇形貌之研究

Debris Fan Morphology Measured in the Lab and Field Using Digital Photogrammetry

黃建霖(Chien-Lin Huang)

指導教授 ： 卡艾瑋

國立臺灣大學/工學院/土木工程學研究所/碩士(2014年)

https://doi.org/10.6342/NTU.2014.01447

摘要

本研究目的在於採用攝影測量透過現地調查荖濃溪流域之布唐布納斯溪沖積扇以及實驗觀測來研究土石流沖積扇形貌之變化。透過遙控無人載具配合量測之地表測量標記點之施測可以達到相對高精度低花費之測量結果，實驗採用特殊設計平面鏡陣列可有效提供多個不同角度影像以供數值地形模型資料之建立。在本研究中採用兩種不同條件之土石流來模擬分別在類沖積扇以及高流動性類泥流之土石流沖積扇形成模式，在現地與實驗的比較結果中可發現此兩種沖積扇形成模式在現地皆有發生之可能性及跡象，最後由實驗的結果發現在實驗中之土石流沖積扇有機會自初始沖積扇面高程持續成長的階段到後期達到一動態平衡之高程的階段。

關鍵字

攝影測量 ； 土石流沖積扇形貌變化 ； 荖濃溪 ； 布唐布納斯溪 ； 無人載具 ； 平面鏡陣列 ； 數值地形模型資料

並列摘要

The aim of this thesis is to investigate the morphology of debris fan by conduct a field survey in Pu-Tun-Pu-Nas River debris fan of Laonong River and experiment observation with the Photogrammetry survey method. Aerial UAV Photogrammetry survey with ground controlled marker target can bring high quality digital surface model in a parity cost. Designed mirror array build in laboratory can provide stereo images for reconstruct experiment debris fan topography. Two experiment conditions are adopted to simulate fluvial fan and mudflow formed composition pattern. These two formation pattern might be possible in the field according to the comparison result between field and experiment. The result of experiment shows these two experiments might reach a dynamic equilibrium elevation in late stage from an initial stage of elevation growth.

並列關鍵字

Photogrammetry ； Morphology of debris fan ； Laonong River ； Pu-Tun-Pu-Nas River ； UAV ； Mirror array ； Digital surface model

參考文獻

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