簡易檢索 / 詳目顯示

研究生: 陳宜妡
Chen, Yi-Hsin
論文名稱: 軟硬岩現地小應變動態特性之量測
In-situ Measurements of Small-Strain Dynamic Properties for Soft and Hard Rocks
指導教授: 張文忠
Chang, Wen-Jong
學位類別: 碩士
Master
系所名稱: 工學院 - 土木工程學系
Department of Civil Engineering
論文出版年: 2021
畢業學年度: 109
語文別: 中文
論文頁數: 101
中文關鍵詞: 軟硬岩現地震波井測小應變動態性質波速量測
外文關鍵詞: soft and hard rocks, in-situ seismic borehole test, small-strain dynamic properties, wave velocity measurement
相關次數: 點閱:69下載:0
分享至:
查詢本校圖書館目錄 查詢臺灣博碩士論文知識加值系統 勘誤回報
  • 台灣地震發生頻繁,建築物時常受到地盤震動影響,重大公共設施在設計階段其動態分析為安全評估中重要的一環,因此以震測試驗量測地盤相關動態特性為重要關鍵。本研究以現地鑽孔法的下孔式震測、跨孔式震測試驗,其結果於時間域中進行判釋波傳時間與訊號振幅變化,計算波傳速度(V_s)及衰減係數(α)之成果可用於計算軟硬岩相關動態特性。波傳時間之判釋,分別以相角差180度之震源訊號,判別兩訊號疊合之交叉處,定義初達波時間(First arrival);以及接受器訊號與震源訊號同向之第一振幅峰值作為選點位置,計算波傳時間差定義為波峰判釋法之波傳時間(First peak);以及時間域相關性分析(Cross-correlation),以波形相關性獲取震源與受波器間的波傳時間,分別計算對應波速結果。透過不同波形特徵及訊號處理方法,推估現地土層之幾何分布,並除此之外再加上結合彈性力學在應力波傳理論,計算軟硬岩在小應變行為下棋其剪力魔術模數、阻尼比與柏松比等動態特性。計算結果與現地取回之岩心室內試驗成果進行比較,進而並計算現地試驗通常會用來求取場址地層的波速、分層厚度等性質,而探討不同方法之量化差異,雖然成本高於室內試驗以及現地的非破壞性試驗,但其中最大的優勢為所呈現之試驗結果會最接近於實際地層的情形,對於獲取重要場址的分析參數上精確度也會有所提高,其由試驗結果統整出各種判釋方法之間的差異以及適用性,能夠提供未來在重要場址岩石動態分析參數量測時的選取依據參數及變異範圍。

    Earthquake often occur in Taiwan and buildings are affected by ground vibrations, so the dynamic analysis of major public facilities in the design stage is important. Therefore, it is important to measure the dynamic characteristics of the site by seismic testing. In the study, in-situ borehole method was used for down-hole and cross-hole seismic testing. Interpretation of travel time and signal amplitude changes in the time domain, the results of shear wave velocity and attenuation coefficient(α) can be used to calculate the dynamic characteristics of soft and hard rocks.Wave propagation time is determine by the crossover point of the two signals define as the first arrival; the first amplitude peak of the receiver and the source in the same direction defined as first peak; time-domain correlation analysis, obtain the wave propagation time between source and receiver with the waveform correlation, and calculate the corresponding wave speed results respectively. Through different waveform characteristics and signal processing methods, estimate the geometric distribution of the existing soil layer, and combine the elastic stress wave transmission theory to calculate the dynamic characteristics of soft and hard rocks under small strain such as shear modulus, damping ratio, and Poisson’s ratio. The results are compared with the laboratory test results, and the quantitative differences of different methods are discussed. The results integrate the differences and applicability of various interpretation methods, and provide future rock dynamic parameter measurement at the site. Selection basis and range of variation.

    摘要II AbstractIII 致謝X 目錄XI 表目錄XIV 圖目錄XV 第一章 緒論1 1.1研究背景及動機1 1.2研究目的與方法2 1.3研究流程與架構2 第二章 文獻回顧4 2.1基本波傳理論4 2.1.1實體波(Body wave)4 2.1.2表面波(Surface wave)6 2.1.3以平均波速分類場址地盤7 2.2小應變下動態特性試驗方法7 2.2.1現地震測試驗方法9 2.2.2室內波速量測法15 2.3波速判釋方法16 2.3.1時間域波型挑選16 2.3.2訊號相關性分析17 2.4波速量測影響因子20 2.5波傳衰減行為22 2.5.1基礎衰減理論22 2.5.2現地試驗求取阻尼比25 2.5.2 彎曲元件試驗求取阻尼比28 第三章 試驗方法30 3.1現地震測試驗30 3.1.1 試驗儀器與設備30 3.1.2試驗步驟34 3.2現地試驗資料處理程序36 3.3室內彎曲元件試驗43 3.3.1 試驗儀器與設備43 3.3.2試驗步驟43 3.4室內彎曲元件資料處理44 第四章 軟岩波速試驗結果與分析比較47 4.1現地跨孔式震測數據47 4.1.1 波速量測結果47 4.1.2動態特性結果48 4.2彎曲元件試驗數據 53 4.2.1 波速量測結果53 4.2.2動態特性結果54 4.3不同量測方法對軟岩之綜合比較56 第五章 現地硬岩波速試驗結果與分析比較61 5.1現地下孔式震測試驗61 5.1.1 波速量測結果61 5.1.2阻尼比及Q因子67 5.2不同量測方法之綜合比較69 第六章 結論與建議71 6.1結論71 6.2建議72 參考文獻73 附錄76

    王雅琪,2012,非飽和土壤中應力狀態參數對剪力波速影響之探討,成功大學土木工程學系,碩士論文。
    鄭富書、朱家德、黃燦輝,1994,台灣一些軟弱岩石的工程性質,1994岩盤工程研討會論文集,第259-267頁。
    陳文明,1994,下孔式震測法於現場土層動態特性參數量測之研究,成功大學土木工程系,碩士論文。
    ASTM Standard D4428/D4428M (2014).“Standard Test Method for Crosshole Seismic Testing.” ASTM International.
    ASTM Standard D7400/D7400M (2019).“Standard Test Method for Downhole Seismic Testing.” ASTM International.
    Bell, J. F.(1973). The Experimental Foundations of Solid Mechanics, Handbuch Der Physik, vol. VI a/1, Springer, Berlin.
    Bolt, B.A.(1993). Earthquake and Geological Discovery ,Scientific American Library, New York.
    Bornitz, G. (1931). Über die Ausbreitung der von Groskolben-maschinen erzeugten Bodenschwingungen in die Tiefe , J. Springer, Berlin.
    BSSC (Building Seismic Safety Council) (1998). 1997 Edition NEHRP Recommended Provisions for Seismic Regulations for New Buildings and Other Structures, FEMA 368/369, Part 1 (Provisions) and Part 2 (Commentary), Developed for the Federal Emergency Management Agency, Washington, DC.
    Dyvik, R., Boulanger, R.W., and Riemer, M.F. (1985).“Analysis of Bender Element Tests, ”Advances in the Art of Testing Soils Under Cyclic Conditions, ASCE, New York ,pp. 186-196.
    Ewing, W.N., and Jardetzky, W.S. (1957). Elastic Waves in Layered Media, McGraw-Hill Book Co., New York, p. 380.
    Gutowski, T.G. and Dym, C.L. (1976).“Propagation of Ground Vibration : A Review.” Journal of Sound and Vibration, Vol. 49, No.2, pp.179-193.
    Hoar,R.J. (1982).“Field Measurement of Seismic Wave Velocity and Attenuation for Dynamic Analyses.” University of Texas at Austin.
    Kudo K., and Shima, E. (1970).“Attenuation of Shear Waves in Soil.” Bulletin of the Earthquake Research Institute Vol.48, pp. 145-158.
    Karl, L., Haegeman, W., Degrande, G., and Dooms D., (2008). “Determination of the Material Damping Ratio with the Bender Element Test.” Journal of Geotechnical and Geoenvironmental Engineering ,ASCE No. 134 , pp 1743-1756.
    Mok, Y.J., Sanchez-Salinero, I., Stokeo, K.H.,and Roesset , J.M. (1988).“In-situ Damping Measurements by Crosshole Seismic Method.” Earthquake Eng. and Soil Dynamics II, Recent Advances in Ground Motion Evaluation, ASCE Geotechnical Special Publication No. 20, J.L. Von Thun, Editor , pp. 305-320.
    Richard, Jr., F.E., Hall, Jr. ,J.R.,and Woods ,R.D. (1970).“Vibrations of Soils and Foundations.” Prentice-Hall, Inc., Englewood Cliffs, New Jersey.
    Sánchez-Salinero, I. (1987).“Analytical Investigation of Seismic Methods Used for Engineering Applications. ”University of Texas at Austin.
    Santamarina J.C. and Dante Fratta (2005). “Discrete Signals and Inverse Problems : An Introduction for Engineers and Scientists”, New York, p. 350.
    Shirley , D.J. and Hampton , L.D. (1978). “Shear wave measurements in laboratory sediments. ”Journal of the Acoustical Society of America, vol. 63, No. 2 ,pp. 607-613.
    Stokeo, K.H., II and Hoar, R.J.(1978). “Generation and Measurement of Shear Waves In Situ.” Dynamic Geotechnical Testing , ASTM STP 654 ,Philadelphia ,PA, pp3-29.
    SW-AJA(1972). “Soil Behavior Under Earthquake Loading Conditions, State of the Art Evaluation of Soil Characteristics for Seismic Response Analyses: Prepared Under Subcontract. ” No. 3354, Union Carbide Corp., for U.S. Atomic Energy Commission, Contract No. W-7405-eng-26.
    Tanimoto, K., and Kurzeme, M. (1973). “In-situ Shear Wave Velocity by Cross-hole Method ” Journal of Soil Mechanics and Foundations , Vol.99 , pp.249-265.
    Vernon D. Barger and Martin G. Olsson (1973). “Classical Mechanics : A Modern Perspective ” McGrew-Hill Book Co Inc. New York , pp.75-78.
    Viggiani,G., and Atkinson, J.H.(1995). “Interpretation of bender element tests. ” Geotechnique , Vol.45 , No.2 , pp.249-265.
    Woods, R.D. (1968).“Screening of Surface waves in soils.” Journal of the Soil Mechanics and Foundational Division, ASCE, Vol. 94, No.4,pp. 951-979.

    無法下載圖示 校內:2026-08-16公開
    校外:2026-08-16公開
    電子論文尚未授權公開,紙本請查館藏目錄
    QR CODE