利用邊坡活動性反演崩塌滑動面幾何型態

10.6653/MoCICHE.202310_50(5).0005

林冠瑋；劉哲欣；張志新；郭賢立

土木水利

50卷5期（2023 / 10 / 01）

27 - 31

繁體中文

本研究整合了數位影像相關法（DIC）與崩塌厚度反演方法，以分析桃園光華崩塌的滑動面幾何型態。反演所獲得的厚度模型進而可用於計算體積、流變性和滑動面形狀。兩期UAV正射影像的DIC分析結果顯示2021年3月至8月底，光華崩塌的地表水平位移最大值為39.7公尺，平均值為7.8公尺，與GPS觀測結果大致相符。此外，將DIC分析的水平位移分解，顯示光華崩塌以向東位移為主。為了反演崩塌厚度，使用了2023年3月1日和8月17日的兩期數值地型模型，結果可提供三維滑動面幾何型態，進而估算崩塌塊體體積。光華崩塌的活動塊體最大深度為54公尺，體積約58.5萬立方公尺。

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