運用透地雷達量測河川通水斷面

Ground Penetrating Radar for River Cross Section Measurement

吳忠樺(Jhong-Hua Wu)

指導教授 ： 陳彥璋

國立臺北科技大學/工程學院/土木與防災研究所/碩士(2010年)

https://doi.org/10.6841/NTUT.2010.00215

摘要

水理、水文分析中河川通水斷面為一非常重要之參數。以往大多數採用鉛錘法量測河川通水斷面，以鉛錘法量測需耗費大量時間、經費與人力，所得資料之時效性有限且施測之危險性極高，其量測之斷面為非連續性斷面，無法顯示真實之河川斷面狀態。『透地雷達』(Ground Penetrating Radar，簡稱GPR)大量運用於大地工程與地質探測上，於地下水位深度、斷層位置探勘、堤防掏空等檢測項目中之成果相當豐碩。USGS於1996年首度運用透地雷達進行河川斷面量測，研究指出對透地雷達不需接觸水體進而能夠提高安全性與準確性且所得為連續資料之特性，抱持高度肯定。但河川通水斷面之分析是以人為判釋之方式進行，人為判釋受個人主觀意識與判釋之經驗影響，於判釋上並無準則。本研究選定北勢溪流域為實驗區域，建立透地雷達現地量測與資料分析之流程，運用透地雷達影像、透地雷達電磁波振幅與運用HHT(希伯特-黃轉換)分析電磁波振幅以三種分析方法建立透地雷達資料判釋之機制，改進以往人為判釋之缺點。分析後可得連續之河川通水斷面，並與傳統鉛錘法所得之結果進行差異性比較，比較之結果顯示兩種方法之差異約於15％以內，證明透地雷達可運用於實際之河川通水斷面量測。

關鍵字

透地雷達 ； 電磁波振幅 ； HHT ； 河川通水斷面

並列摘要

Ground Penetrating Radar application for ground engineering, survey the fault, etc. has been a long time. THE Ground Penetrating Radar virtue are save the cost, quick to measurement, efficient measurement ,not-contact measurement, etc.
Traditional river cross section measurement method are waste the time, waste the labor cost, and the data are limited in time.
River cross section Measurements using ground penetrating radar in order to shorten the time of measurement, reduce expenses. of measurement, reduce the risk of Surveying personnel, increase the measurement frequency and obtain the continuity of river cross section.
The study area is Beishih basin . The study establishes the ground-penetrating radar measurement and data analysis process. In this study using the ground-penetrating radar imaging, electromagnetic wave amplitude of ground -penetrating radar, and Transform the electromagnetic wave amplitude use Hilbert-Huang Transform to analysis the river bed location. It can obtain the continuity of river cross section when the GPR data analysis process complete. Compare the differences of river cross section area with the traditional method, the river cross section area differences about 15% that’s a compare result. It’s proved using ground-penetrating radar can application for river cross section measurement.

並列關鍵字

GPR ； electromagnetic wave amplitude ； HHT ； River section area

參考文獻

[9] 陳彥霖(2009)，「以透地雷達量測河川斷面 」，國立台北科技大學土木與防災研究所。

[5] 吳順德，陳思予，陳虹伯(2009)，「經驗模態分解法之研究趨勢探討」，臺北科技大學學報第四十二之一期。

[14] Chieh-Hou Yang, Lun-Tao Tong, Chun-Yi Yu, (2006). “Integrating GPR and RIP Methods for Water Surface Detection of Geological Structures,” TAO, Vol.17, No.2, 391-404.

[15] Chieh-Hou Yang, Jiunn-I You, Chiu-Pin Lin, (2002). “Delineating lake bottom structure by resistivity image profiling on water surface.” TAO, Vol.13,No.2, 39-52.

[18] J. E. Costa, R. T. Cheng, F. P. Haeni, N. Melcher, K. R. Spicer, E. Hayes, W. Plant, K. Hayes, C. Teague, and D. Barrick, (2006). “Use of radars to monitor stream discharge by noncontact methods,” Water Resources Research, Vol.42.