透地雷達應用於鋼筋與鋪面厚度檢測之研究

Investigation of Reinforcing Bars and Pavement Thickness by Using Ground Penetration Radar

陳水龍(Shong-Loong Chen) ； 李焜發(Kun-Fa Li) ； 謝其達(Chi-Ta Hsieh)

《國立金門技術學院學報》 3期 (2008/03) Pp. 97-106

https://doi.org/10.7057/JNKIT.200803.0097

摘要

鋼筋位置與路基鋪面厚度都是常被檢查的項目。一般檢測鋼筋結構普遍使用鋼筋探測儀，而路基鋪面厚度則是使用採岩心取樣的方式來檢測，如此檢測模式往往造成結構性破壞，不但耗時且麻煩。而透地雷達非破壞性檢測不但迅速、方便而且不會造成結構破壞，也因此透地雷達非破壞性檢測逐漸在大地建築受到普遍廣泛應用。本文以RAMAC和GSSI兩套透地雷達儀器進行檢測，實際以苗栗陸橋橋墩及金門金寧酒廠廠房為案例，分別對鋼筋與路基鋪面之大地建築詳加探討。進行透地雷達之圖像判識，再與相關鋪面文獻做印證，加上路面檢測及開挖驗收之實際量測，藉此觀察雷達波之特性，建立一標準模式資料，作為日後透地雷達判讀及解釋的依據。

關鍵字

透地雷達 ； 鋪面厚度 ； 鋼筋

並列摘要

The location of reinforcing bars and the thickness of road foundation pavement are often the items that are put to inspection. In general, reinforcing bar detectors are usually used in reinforced concrete structure inspections, but in the case of road foundation pavement thickness, core sampling is introduced for inspection. However in doing so, this inspection pattern not only is destructive, but also time and effort-consuming. The nondestructive inspection using ground-penetrating radar provides a means that is not only fast and easy, but also does no damage to the existing structure. Therefore, The Non-Destructive Testing using ground-penetrating radar is widely used in geotechnical structures.In this study, two types of ground-penetrating radar systems - RAMAC and GSSI - are used for inspection. The study is carried out on the piers of an overpass in Miaoli and a factory facility in Chinning Distillery in Kinmen for investigation on the reinforcing bars and road foundation pavement. Then, the result is compared to several master theses related to pavement studies and the actual measurement and image identification from road inspections, excavation and acceptance to study the characteristics of the radar waves and to establish a standard pattern for the basis of identification and explanation of engineers in the future.

並列關鍵字

Ground Penetrating Radar ； Pavement Thickness ； Reinforcing Bar