建議

(1) 野外施測時，震源與墊片配合可一下列原則配置:短近站支距

(<20m) 使 用 鐵 槌 做 為 震 源 並 搭 配 橡 皮 墊 ; 中 等 近 站 支 距 (20m<x0<50m 使選用鐵槌或砲車做為震源，鐵板作為鎚墊;遠炸 點(>50m)則採用自由落鎚。

(2) 目 前 使 用 中 的 自 由 落 鎚 ， 重 槌 落 下 一 個 循 環 ， 需 耗 費 3~5mins，如何改善目前使用中的自由落槌機制，使其更為方便操作 並且快速，勢在必行。

(3) 墊片之厚度與尺寸效應對於本研究中並未討論完善，若於相 同材質但厚度尺寸不同之墊片施測，低頻訊號或能加以改善。

(4) 新式受波器亦可以使用不同濾波效果之受波器加以製造以符 合多種施測表面所需;較為柔性的基座及些許加載或能改善受波器與 地表間接觸之互制行為。

參考文獻

1. B.W.Hootman,and Douglas I.Hart, ”The realities of processing mixed-source seismic surveys”, Western Geophysical, Denver, Colorado

2. C.B.Park, R.D.Miller, and Hidetoshi Miura, ”Optimal Field Parameters of an MASW Survey” Kansas Geological Survey, Lawrence, Kansas, USA

3. Design and application of a towed land-streamer system for cost-effective 2-D and pseudo 3-D shallow seismic data acquisitionVan derVeen, M., and Green, A.G., Geophysics, v66, n2,(2001) p482~500

4. Dr.Crutis Link . Montana Tech technical report . “A rapid –deployment 3-D seismic reflection system” (2002)

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9. Jianghi Xia,R.D.Miller,and Coon B.Park,Estimate of near-surface shear-wave velocity by inversion of Rayleigh Waves”,Geophysics,vol3,p691~p700

10. Julian lvanov,C.B.Park,R.D.Miller,and Jianghai Xia,”Modal separation before dispersion curve extraction by MASW method ”,Kansas Geological

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P482~P500

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Geophysics v66 n2,2001, p482~500

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30. 林志平,張正宙,鄭孟雄”以多頻道表面波量測地層之剪力波速”,岩盤工程研 討會論文,新竹,(2002)

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程系研究所(2004)

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6series 右側敲擊

6series 左側敲擊

6series 垂直側敲擊

6series 初達波選取

6series 波速剖面

7series 右側敲擊

7series 左側敲擊

7series 垂直敲擊

7series 初達波選取

7series 波速剖面

8series 右側敲擊

8series 左側敲擊

8series 垂直敲擊

8series 初達波選取

8series 波速剖面