非破壞性檢測技術廣泛應用於地質調查、地層構造判釋、地下設施探測與文化資產調查等領域，能在不破壞地層的情況下獲取地下資訊，因此於大地工程探測中佔有重要地位。本研究以透地雷達及地電阻為主要調查工具，針對地層擾動與現地遺構進行探測，並進一步對透地雷達數據進行頻譜分析，以探討構造物材料之特徵頻率。
研究標的涵蓋二個議題，四個探測案例分析。第一個議題為地層擾動檢測，以成功大學地下試驗水槽為例，因在擴建水槽工程中發現舊有水槽底部出現裂隙，且疑似延伸至側壁，故運用透地雷達檢側壁後方是否有潛在地層擾動。第二個議題是現地遺構檢測包含三處：其一為探測嘉義車站轉車臺遺構，於鐵路高架化工程中發現日治時期混凝土製的火車車頭轉車臺，使用透地雷達探測其是否使用鋼筋及鋼筋的排列方式；其二為探測金門明清時代金門城遺址，包含西門城外側及千戶所城(里民活動中心前廣場)，前者結合透地雷達與地電阻探討西門城甕城牆基礎與地層構造，後者則基於文獻推測為千戶所城舊址，採用透地雷達進行尋找舊有構造；其三為探測臺灣府城小東門城甕城遺址，因小東門城甕城具完整探測與開挖資料，可作為透地雷達與地電阻交叉驗證應用場址，其結果並與金門西門外側進行比對分析。
綜合以上探測成果亦透過MATLAB進行透地雷達頻譜分析，探討不同構造材質的雷達反射圖徵之頻率變化，作為判釋材質的依據。本研究使用透地雷達與地電阻來研究在多樣地層條件與文化遺構場址中進行探測，以瞭解其應用潛力，進而提升非破壞性探測於地工與歷史場址調查中的整體效能。

Non-destructive testing (NDT) techniques are widely applied in geological, geotechnical, and cultural heritage investigations for acquiring subsurface information without disturbing the ground. This study integrates Ground Penetrating Radar (GPR) and Electrical Resistivity Tomography (ERT) to detect ground disturbances and investigate in-situ historical remains, with GPR spectral analysis further applied to identify characteristic frequencies of construction materials.

Two research topics with four case studies are presented. The first focuses on ground disturbance detection at the underground water tank of National Cheng Kung University, where GPR was used to assess potential subsurface anomalies following tank expansion works. The second concerns historical remains detection, including: (1) the Chiayi Railway Station turntable from the Japanese colonial period; (2) the Kinmen City ruins from the Ming-Qing period, involving the West Gate and the former Qianhusuo Fortress; and (3) the Xiaodongmen barbican in Tainan City, which served as a validation site for GPR and ERT through comparison with excavation records.

Spectral analysis of GPR data provided insights into the frequency responses of different materials, enhancing interpretation accuracy. This study demonstrates the potential of combining GPR and ERT for effective non-destructive investigations across diverse geological conditions and heritage sites.

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