JP2007298369A - 地表震源による坑井間弾性波トモグラフィ法 - Google Patents
地表震源による坑井間弾性波トモグラフィ法 Download PDFInfo
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Abstract
【解決手段】一つの坑井内の起震点から地中を伝播する弾性波を、他の坑井内の多数の受振点で受振し、起震点を変えて受振波形を記録することにより、坑井間トモグラフィ測定データを得る弾性波トモグラフィ法である。複数の震源10を、坑井14内ではなく地表12に配置すると共に、複数の坑井内に多数の受振器16を設置し、地表の異なる起震点で実際に震源により起震して地中を伝播する弾性波を各坑井内の多数の受振器で受振して受振波形を記録し、各受振器での受振記録の相互相関をとることにより、一つの坑井内の受振器位置が仮想震源となり、他の坑井内で前記仮想震源による弾性波の受振記録が合成されるようにし、それによって擬似的に坑井間トモグラフィ測定データを作成する。
【選択図】図1
Description
A.Bakulin and R.Calvert(2004): Virtual Source: new method for imaging and 4D below complex overburden, Society of Exploration Geophysicists, 2477-2480
12 地表
14 坑井
16 受振器
Claims (2)
- 一つの坑井内の起震点から地中を伝播する弾性波を、他の坑井内の多数の受振点で受振し、起震点を変えて受振波形を記録することにより、坑井間トモグラフィ測定データを得る弾性波トモグラフィ法において、
複数の震源を、坑井内ではなく地表に配置すると共に、複数の坑井内にそれぞれ多数の受振器を設置し、地表の異なる起震点で実際に震源により起震して地中を伝播する弾性波を各坑井内の多数の受振器で受振して受振波形を記録し、各受振器での受振記録の相互相関をとることにより、一つの坑井内の受振器位置が仮想震源となり、他の坑井内で前記仮想震源による弾性波の受振記録が合成されるようにし、それによって擬似的に坑井間トモグラフィ測定データを作成することを特徴とする地表震源による坑井間弾性波トモグラフィ法。 - 震源としたい任意の坑井内受振器位置での受振記録から相反定理と時間反転定理による処理を行って仮想震源波形を合成し、他の坑井内の受振器での受振波形に対し同様の処理を行って受振記録を合成することにより、坑井内仮想震源による擬似的な受振記録を作成する請求項1記載の地表震源による坑井間弾性波トモグラフィ法。
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009271033A (ja) * | 2008-05-12 | 2009-11-19 | Sanko Consultant Kk | 地震波干渉法 |
JP2010008196A (ja) * | 2008-06-26 | 2010-01-14 | Sanko Consultant Kk | S波反射法地震探査 |
CN103015390A (zh) * | 2013-01-06 | 2013-04-03 | 山东大学 | 地基压实度分层联合测定和长期监测的方法与装置 |
CN104820245A (zh) * | 2015-05-05 | 2015-08-05 | 北京交通大学 | 地质缺陷无损检测系统和方法 |
JP2019167726A (ja) * | 2018-03-23 | 2019-10-03 | 五洋建設株式会社 | 地盤構造推定方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH11160448A (ja) * | 1997-11-26 | 1999-06-18 | Chikyu Kagaku Sogo Kenkyusho:Kk | 坑井内人工震源装置 |
US20030076740A1 (en) * | 2001-09-07 | 2003-04-24 | Calvert Rodney William | Seismic imaging a subsurface formation |
JP2004163322A (ja) * | 2002-11-14 | 2004-06-10 | Jfe Civil Engineering & Construction Corp | 擬似ランダム波を用いた多重発震による非破壊計測方法及び装置 |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11160448A (ja) * | 1997-11-26 | 1999-06-18 | Chikyu Kagaku Sogo Kenkyusho:Kk | 坑井内人工震源装置 |
US20030076740A1 (en) * | 2001-09-07 | 2003-04-24 | Calvert Rodney William | Seismic imaging a subsurface formation |
JP2004163322A (ja) * | 2002-11-14 | 2004-06-10 | Jfe Civil Engineering & Construction Corp | 擬似ランダム波を用いた多重発震による非破壊計測方法及び装置 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009271033A (ja) * | 2008-05-12 | 2009-11-19 | Sanko Consultant Kk | 地震波干渉法 |
JP2010008196A (ja) * | 2008-06-26 | 2010-01-14 | Sanko Consultant Kk | S波反射法地震探査 |
CN103015390A (zh) * | 2013-01-06 | 2013-04-03 | 山东大学 | 地基压实度分层联合测定和长期监测的方法与装置 |
CN104820245A (zh) * | 2015-05-05 | 2015-08-05 | 北京交通大学 | 地质缺陷无损检测系统和方法 |
JP2019167726A (ja) * | 2018-03-23 | 2019-10-03 | 五洋建設株式会社 | 地盤構造推定方法 |
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