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論文中文名稱:透地雷達應用於地下管線探勘之研究 [以論文名稱查詢館藏系統]
論文英文名稱:A Study of Applying Ground Penetration Radar Detect Underground Pipelines [以論文名稱查詢館藏系統]
院校名稱:臺北科技大學
學院名稱:工程學院
系所名稱:土木與防災研究所
中文姓名:黃韋華
英文姓名:Wei-Hua Huang
研究生學號:92428005
學位類別:碩士
語文別:中文
口試日期:2005-07-21
論文頁數:118
指導教授中文名:陳水龍
口試委員中文名:陳立憲;李焜發
中文關鍵詞:雷達波非破壞檢測透地雷達地下管線
英文關鍵詞:Radar waveNon-destructive surveyingGround Penetrating RadarPipelines
論文中文摘要:大地工程上,經常遇到需檢核及驗收地下管線或舖面厚度等問題,傳統上使用明挖或鑽掘方式,相當耗力費時,所需經費龐大、易產生噪音、造成鋪面結構與管線之損害以及妨礙交通等。有待研究更簡便有效的非破壞檢測方法進行測試並解決問題。透地雷達簡稱GPR,乃利用雷達波碰到物體反射之自然現象,分析反射波雙程走時、波形、振幅、頻率等特徵來判別反射體之位置及尺寸。
本研究以砂箱模擬典型管線試驗,變換不同材質管線以不同的幾何排列方式在試驗砂坑中進行試驗,然後再藉由不同情況之實際工程案例來分析相異材質之地下管線之圖像特徵,並經由濾波及增益等處理功能來增強管線之訊號,分析道路下管線之分布情形,並與砂箱模擬試驗之結果比較,觀察雷達波之特性,並利用3-D影像處理軟體Easy 3D做資料之影像分析,改善傳統2-D之缺點,並比較優缺點及差異性,檢討其適用性。在管線探測初步成果方面,能分辨出PE及PVC管線由於材質差異所造成之圖像特徵,並證實此法對於實際地下管線位置之探勘有相當之成效,證實GPR法有亟待推廣之潛力。
論文英文摘要:In geotechnical engineering, it is often necessary to carry out inspection work prior to the acceptance of pipelines or pavement thickness. Traditionally, digging or drilling is used for this purpose. However, this is not only costly and time consuming, but also destroyed the pavement structures and caused disturbances to nearby residents. A simpler and more effective method in solving this kind of problem is necessary. The topic here is a non-destructive investigation method, which is calledthe Ground Penetrating Radar (GPR) that employs the radar wave reflection principle. By analyzing the round-trip reflected wave, waveform, the amplitude and frequency of vibration, and other characteristics we can derive the location and size of an object below ground.
This study use a sand box to simulate typical hole pipe test. Vary different material pipeline and geometry arrange the way and carry on the test in the sand box, then analyse the picture characteristic of the underground pipeline of the different material with the actual project case of different situations, and strengthened the signal of pipeline by use filter and gain, analyse the distribution situation of the pipeline under road , and compare with the result of the simulated test of the sand box observing the characteristic of radar wave. And use 3–D image deal with software easy 3–D and Gradix image analysis of making data, improve the shortcoming of 2–D,and comparative advantage and disadvantage and difference, examine its suitability , survey the preliminary achievement in the pipeline, can differentiate the picture characteristic that PE and PVC pipeline cause because of the material difference,verify this way prospecting suitable effect to the real underground pipeline position ,verify GPR has potentiality to demand urgently to be popularized.
論文目次:中文摘要 i
英文摘要 ii
誌謝 iv
目錄 v
表目錄 vii
圖目錄 viii
照片目錄 xii
第一章 緒論 1
1.1 研究動機 1
1.2 研究目的與內容 2
第二章 文獻回顧 3
2.1 透地雷達發展史 3
2.2 透地雷達之特性 5
2.2.1 透地雷達之優點 5
2.2.2 透地雷達之限制 5
2.3 透地雷達之應用範圍及其相關研究文獻 6
第三章 透地雷達相關理論及其影響參數 23
3.1透地雷達基本理論 23
3.1.1 電磁波基本概念 24
3.1.2 馬克斯威爾方程式 25
3.1.3 透地雷達電磁波之傳播 27
3.2 地層介質影響參數 28
3.2.1 導電度(率) 28
3.2.2 介電常數 29
3.2.3 天線頻率 31
3.2.4 衰減度 31
3.3 電磁波的解析能力與穿透能力 32
3.4 雷達波速及探測深度之求法 34
3.4.1 雷達波之波速 34
3.4.2 探測深度 36
3.5 試驗設定參數 37
3.6 GPR的資料處理與圖像判釋 41
第四章 試驗規劃、試驗結果與案例分析 48
4.1 透地雷達之儀器介紹及試驗步驟 48
4.1.1 試驗設備 48
4.1.2 試驗步驟 53
4.2 試驗儀器施測時之內部流程 55
4.3 模型砂箱實驗 56
4.3.1 上下排列PE管線試驗 58
4.3.2 上下排列PVC管線試驗 71
4.3.3 左右並列不同材質管線試驗(PE及PVC管) 84
4.3.4 不同材質管線(PE及PVC管)之比較 89
4.4 實際案例分析 92
4.4.1 舊管線斷管位置之探測(PE管) 92
4.4.2 瓦斯管線位置判定(PE管) 99
4.4.3 未知管線位置判定(PVC管) 103
4.4.4 未知相鄰管線位置判定(PVC與PE管) 106
4.5 砂箱模擬試驗與實際案例之比較 109
4.6 小結 112
第五章 結論與建議 113
5.1 結論 113
5.2 建議 114
參考文獻 115
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論文全文使用權限:同意授權於2006-08-24起公開