| 研究生: |
吳宏哲 Wu, Hong-Jhe |
|---|---|
| 論文名稱: |
應用透地雷達與目視調查評估混凝土河堤淘空程度之研究 Applying Ground Penetration Radar and Visual Investigation on Estimating the Eroded Caves behind the River Embankment with Concrete Plates |
| 指導教授: |
李德河
Li, Der-Her |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 土木工程學系 Department of Civil Engineering |
| 論文出版年: | 2011 |
| 畢業學年度: | 99 |
| 語文別: | 中文 |
| 論文頁數: | 226 |
| 中文關鍵詞: | 透地雷達 、目視法 、非破壞檢測 |
| 外文關鍵詞: | Ground Penetrating Radar, Visual Investigation, Artificial Neural Networks |
| 相關次數: | 點閱:158 下載:3 |
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本研究旨在採用透地雷達與現地目視調查之方法於曾文溪堤防進行河堤淘空檢測與評估。一般以混凝土鋪面的河堤,其面版下方堤體產生淘空時,難以目視方法來判斷淘空的位置與淘空程度,因此,近來常以透地雷達等非破壞性檢測方法來進行河堤混凝土面版下方淘空程度的檢測與評估。但非破壞性檢測儀器的使用以及檢測結果的分析並非簡單且容易上手,欲大力推廣,有其限制。因此,本研究以曾文溪某段河堤為對象,使用透地雷達,進行混凝土面版下方淘空程度的探測調查,同時再以目視法針對同一段河堤之面版外徵:面版上裂縫之長度、寬度、面版沉陷量、裂縫型式、裂縫狀態以及堆砂情形等進行蒐集,嘗試建立河堤外徵與透地雷達淘空檢測結果的關係,藉以作為使用目視法進行河堤淘空程度評估的基礎。
The mail focus of this study is applying Ground Penetration Radar (GPR) and visual investigation on estimating the eroded caves behind the concrete plates of river embankments. Generally speaking, it is hardly to estimate the eroded caves inside the river embankment with an exterior concrete plate through the visual investigation directly.Thus, the none-destructive testing (NDT) methods, such as GPR, are usually utilized to estimate and evaluate the eroded caves behind the concrete plates of the river embankment.Comparing with the visual investigation, although the none-destructive testing methods could lead to a relatively accurate estimation results, the NDT equipment is relatively expensive and the NDT methods require more analyzing time. Hence, in this study, we use GPR and the visual investigation to estimate a specific part of the embankment in the Zeng-Wun river basin, simultaneously. Then, we try to establish the relationship between the GPR estimation results and the visual investigation outcomes through Artificial Neural Networks. Once the relationship between the GPR estimation results and the visual investigation outcomes could be obtained, we could evaluate the eroded caves inside the river embankment with the concrete plates through the visual investigation directly. The eroded caves estimations will be faster and easier.
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