Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/15238
標題: 以敲擊回音法檢測錨筋長度及灌漿品質之探討
Evaluating the Length of Rock Bolts and Grouting Quality Using the Impact-Echo Method
作者: 葉至瑋
Ye, Jhih-Wei
關鍵字: Rock-bolt;錨筋;岩栓;植筋
出版社: 土木工程學系所
引用: 參考文獻 1.ACI Committee 228 Report, "In-Place Methods to Estimate Concrete Strength," ACI 228.1R-03, 2003, 44 pp. 2.ACI Committee 228 Report, "Nondestructive Test Methods for Evaluation of Concrete in Structures," ACI 228.2R-98, 2004, 62 pp. 3.Sansalone, M. J., and Streett, W. B., Impact-Echo: Nondestructive Evaluation of Concrete and Masonry, Bullbrier Press, Ithaca, N. Y., 1997, 339 pp. 4.National Cooperative Highway Research Program, "Recommended Practice for Evaluation of Metal-Tensioned Systems in Geotechnical Applications," NCHRP REPORT 477, NCHRP, Washington, D.C., 2002, pp.13-15. 5.BSI, 1992, “Recommendations for the Assessment of Concrete Strength by Near-to-Surface Tests,” BS 1881, Part 207, British Standards Institution. 6.ASTM C597 (1993), " Standard Test Method for Pulse Velocity Through Concrete,"Annual Book of ASTM Standards,Vol.04.02. 7.Wu. T. T., Fang, J. S., Lin, G.. Y. and Kuo, M. K.,“Determination of Elastic Constants of a Concrete Specimen Using Transient Elastic Wave”, J. Acoust. Soc. Am., Vol. 98, No.4, October 1995, pp. 2142-2148(1995) 8.王立邦,「超音波法量測混凝土彈性常數」,碩士論文,國立屏東科技大土木工程研究所,屏東(2001) 9.林宜清,陳真芳,蔡聖德,「混凝土構件幾何形狀對波速之影響」興大工程學報,第五期,27~39頁,民國83年。 10.胡盟宗,「反射波走時法應用在混凝土構件在混凝土構件之厚度量測」,國立中興大學土木工程研究所博士論文,(2006)。 11.周培基,「材料對強沖荷載的動態響應」,科學出版社,中國、北京,(1985)。 12.李義、劉海峰、孫仁元,「反射波法檢測錨杆錨固質量的幾個問題研究」,第六次全國岩石力學與工程學術大會論文集[C],中國、武漢,第813-817頁,(2000)。 13.劉海峰,「錨杆錨固質量及工作狀態動測技術研究」,碩士論文,太原理工大學,中國、太原,第56-79頁,(2000)。 14.Proctor, T ., 〝Some Details of the NBS Conical Transducer.〞Journal of Acoustic emission, Vol. 1.,NO.3,pp.173-178(1982). 15.康淵、陳信吉,「ANSYS入門」,全華科技圖書有限公司,(2004)。 16.李輝煌,「ANSYS工程分析-基礎與觀念」,高立圖書有限公司,國立成功大學工程科學系,(2005)。 17.Kim, D.S.; Kim, H.W.; and Kim, W.C., "Parametric Study on the Impact-Echo Method Using Mock-Up Shafts," NDT&E International, Vol. 35, No. 8, pp. 595-608 (2002). 18.Beard, M.D., and Lowe, M.J.S., "Non-destructive Testing of Rock Bolts Using Guided Ultrasonic Waves," International Journal of Rock Mechanics & Mining Sciences, pp. 527-536 (2004). 19.李盈萩,「應用可感式敲擊時間原點之敲擊鋼珠量測混凝土裂縫及厚度」,碩士論文,國立中興大學土木工程研究所,台中(2003)。 20.陳麗貞,「混凝土結構厚度之時間領域檢測法」,碩士論文,國立中興大學土木工程研究所,台中(2003)。 21.許耿蒼,「以敲擊回音法評估受震後新澆置混凝土構件之鋼筋握裹損失」,朝陽科技大學營建工程系碩士論文,(2002)。 22.林喻峰,「以非破壞技術檢測鋼筋與混凝土間之粘結狀態並評估粘結品質改變時之握裹行為」,國立中興大學土木工程研究所博士論文,(2003)。 23.郭世芳,「以應力波檢測巨積混凝土結構物之表面裂縫」,碩士論文,國立中興大學土木工程研究所,台中(2000)。 24.李義、劉海峰、王富春,「錨杆錨固狀態參數無損檢測及其應用」,岩石力學與工程學報,第23卷,第10期,第1741-1744頁,(2004)。 25.朱國維、彭蘇萍、王懷秀,「高頻應力波檢測錨固密實狀況的試驗研究」,岩土力學,第23卷,第6期,第787-791頁,(2002)。
摘要: 
本研究之目的在探討以敲擊回音法檢測錨筋長度之非破壞試驗的成效。工程技術不斷的發展,使錨筋類型之結構更廣泛地應用在工程加固及支撐上,如植筋、岩栓及地錨等,皆屬於此種結構。藉由埋入長條型之鋼桿與原結構體充分錨定,其高抵抗拉力之力學特性,穩固原結構體或作為兩種材料之連接構件。錨筋之埋設長度不足或錨固不完整時,可能使錨筋無法達到設計功能,使錨筋系統產生破壞。研究方法除了分析以敲擊回音試驗對現地埋設之錨筋長度與錨固完整性所得之檢測訊號外,同時以有限元素程式對錨筋結構之應力波動訊號作數值模擬分析,以驗證敲擊回音法之檢測成果。研究結果顯示,不同之錨筋長度與錨固完整性,在錨筋長度不同時,其應力波到之反射時間很明顯的產生差異;當錨筋錨固完整性不同時,對應力波之波形會產生特殊的反射。由數值分析所求得之結果,與敲擊回音試驗之檢測結果大致吻合,可見以敲擊回音法檢測錨筋之長度與錨固完整性確實可行。

The purpose of this thesis is to investigate the application of the impact-echo method to evaluation of the embedded length of rock bolts. Rock bolts have been popularly applied to keeping steep slope stable. When the embedded length is insufficient, the function of rock bolts is questionable and this may cause the failure of the system. In this thesis, both numerical analyses and experimental studies were performed to understand the behavior of stress wave propagation in a rod with/without surrounding mortar. Signals caused by the arrivals of stress waves were analyzed in both the time and frequency domains. The results obtained from numerical analyses show that the spectral analysis is much easier than the time-domain waveform analysis especially in the case of steel rods surrounded by mortar. The apparent wave speed of the rock bolts is largely affected by the thickness and the wave speed of the surrounding mortar. The experimental results verify the numerical results. It has been proved that evaluating the embedded length of rock bolts using the impact-echo method is really feasible.
URI: http://hdl.handle.net/11455/15238
其他識別: U0005-0408200618051400
Appears in Collections:土木工程學系所

Show full item record
 
TAIR Related Article

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.