講演名 | 2009-10-08 Numerical Simulation for removing the steel-bars scattering wave during NDT of Concrete Structures , |
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抄録(和) | |
抄録(英) | Numerical simulations of GPR performance in typical fault models of shield tunneling back-filled grouting layer were conducted using the FDTD solution over a 2D space. Simulated results indicated that the wave field consists of strong scattering induced by steel-bars in concrete segments of the shield tunnel. It is difficult to recognize the reflection of objects. A method is proposed for removing the scattering field, termed the Overlapping-Information Removal Method. The scattering field of steer bars, calculated in advance, can be subtracted from the observed total field, meaning that reflections from objects can be exactly extracted. |
キーワード(和) | |
キーワード(英) | Ground penetrating radar / Shield tunneling / tunnel segment / Finite difference time domain |
資料番号 | SANE2009-72 |
発行日 |
研究会情報 | |
研究会 | SANE |
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開催期間 | 2009/10/1(から1日開催) |
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テーマ(英) | |
委員長氏名(和) | |
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幹事氏名(和) | |
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幹事補佐氏名(和) | |
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講演論文情報詳細 | |
申込み研究会 | Space, Aeronautical and Navigational Electronics (SANE) |
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本文の言語 | ENG |
タイトル(和) | |
サブタイトル(和) | |
タイトル(英) | Numerical Simulation for removing the steel-bars scattering wave during NDT of Concrete Structures |
サブタイトル(和) | |
キーワード(1)(和/英) | / Ground penetrating radar |
第 1 著者 氏名(和/英) | / Yonghui Zhao |
第 1 著者 所属(和/英) | School of Ocean & Earth science, Tongji University |
発表年月日 | 2009-10-08 |
資料番号 | SANE2009-72 |
巻番号(vol) | vol.109 |
号番号(no) | 219 |
ページ範囲 | pp.- |
ページ数 | 5 |
発行日 |