| 研究生: |
鍾天欣 Chung, Tien-Hsien |
|---|---|
| 論文名稱: |
南部科學園區環境振動之研究 The Study of Microtremor in Southern Taiwan Science Park |
| 指導教授: |
倪勝火
Ni, Sheng-Huoo |
| 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: | 2004 |
| 畢業學年度: | 92 |
| 語文別: | 中文 |
| 論文頁數: | 151 |
| 中文關鍵詞: | 環境振動 、場址效應 、1/3八音階倍頻譜 、穩態振動試驗 |
| 外文關鍵詞: | one-thord octave band, microtremor, site effect, harmonic vibration |
| 相關次數: | 點閱:116 下載:3 |
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由於高速鐵路通車在即,再加上高速鐵路將會穿過南部科學園區一期基地,這對於相當要求環境微振動量的高科技產業帶來相當大的警訊。因此,南科管理局於民國89年~91年在南科園區一期基地建立十四個自動環境微震監測站,藉此了解南科園區於高鐵通車前後之環境振動的變化情形。
本研究主要的目的就是利用在南科園區一期基地十四個自動環境微震監測站所得到的環境振動資料加以分析與整理,以便了解從2001年~2003年這三年來南科園區環境振動之變化情形。
本研究主要分為兩個部分:分別利用環境微震資料、以及全尺寸之穩態振動基樁試驗資料來進行分析。分析的內容包括:Z方向頻帶日平均之平均振幅、Z方向各月份之振動頻譜、場址效應、以及全尺寸之穩態振動基樁試驗所造成的影響。
整體而言,首先,南科園區白天時段的Z方向頻帶日平均之平均振幅大約隨著時間逐漸從30dB~35dB升高到35dB~40dB、晚上時段大約維持在25dB~30dB。接著,南科園區自動監測站之系統顯著頻率大約在中心頻率為3.16Hz的頻帶上。至於,南科園區場址效應部分,其土層之基本顯著週期約在1.16Hz ~1.42Hz之間、基本週期大約在0.72~0.86之間。
另外,針對全尺寸之穩態振動基樁試驗部分,南科園區對於受到水平向之低頻穩態振動的影響相當大,尤其是1.8Hz、2.0Hz、以及4.0Hz。
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