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隧道三維變形量測資料之展示與應用

The Display and Application of the 3-D Deformation Data of Tunnels

摘要


傳統的隧道監測工作僅能測得兩觀測點之相對變位,對於開挖所導致複雜的三向度變形行為,所能提供的預警訊息相當有限,特別在異質性高的地質條件下更為明顯。對此奧地利學者發展一套完整的隧道三維變形回饋分析機制,藉由測點之絕對變位量測,不但能反映開挖面附近之變形行為,亦能根據不同的行為特徵來預判開挖面前方可能的地質情況,因此本文將就國外發展之隧道三維變形量測資料展示方式及其應用原則做一介紹,期望能對提升國內隧道工程之施工安全及品質有所助益。

並列摘要


Traditional tunnel monitoring practice measures the relative displacements between two measuring points. For complex three-dimensional tunnel excavation behavior, it provides limited information about the safety of tunnels, especially under the conditions of highly heterogeneous geology. To meet the demands of tunnel safety, a new scheme of data presentation is developed by Austrian scholars. It could reflect the deformation behavior around the excavation face according to the characteristics of different deformation curves. This paper introduces the methods of presenting the 3-D deformation data and their applications. It is hoped that the safety and quality of tunneling could be improved by applying better monitoring technique in our country.

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