Ground and underground observation of the magnetic field in mine area and its application

• Project/Area Number: 20760268
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Measurement engineering
• Research Institution: Tokyo Metropolitan University
• Principal Investigator: OKUBO Kan Tokyo Metropolitan University, システムデザイン研究科, 准教授 (90336446)
• Project Period (FY): 2008 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2008: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
• Keywords: 磁界観測 / フラックスゲート磁力計 / 地中観測 / 鉱山 / ピエゾ磁気効果 / 地震断層運動 / 鉱山地帯 / 岩手・宮城内陸地震 / 差分信号

Research Abstract

We have observed three components of the geomagnetic field using a pair of fluxgate magnetometers in the Hosokura underground mine in northeast Japan. One of them has been placed at the main gallery ~70m below the ground surface and another in a hole 1m below. By virtue of such highly sensitive magnetometers, we observed the co-seismic magnetic signals accompanied with the fault movement which causes the piezomagnetic effect.

Research Products

• [Journal Article] Positive lectrification on the floor of an underground mine gallery at the arrival of seismic waves and similar electrification on the surface of partially stressed rocks in laboratory (2010)
  • Author(s): Akihiro Takeuchi, Yukako Futada, K. Okubo, Yukinobu Nakamura, Nobunao Takeuchi
  • Journal Title: Terra Nova Pages: 203-207
  • Peer Reviewed
• [Journal Article] Positive electrification on the floor of an underground mine gallery at the arrival of seismic waves and similar electrification on the surface of partially stressed rocks in laboratory (2010)
  • Author(s): Akihiro Takeuchi, Yukako Futada, K.Okubo, Yukinobu Nakamura, Nobunao Takeuchi
  • Journal Title: Terra Nova, 2010 22 Pages: 203-207
  • Peer Reviewed
• [Journal Article] Electric and Ionic Environmental Circumstances Interacting at Hosokura Underground Mine in Northeast Japan (2009)
  • Author(s): Akihiro Takeuchi, K. Okubo, Shun Watanabe, Yukinobu Nakamura, Nobunao Takeuchi
  • Journal Title: IEEJ Trans. FM Vol.129 Pages: 870-874
  • Peer Reviewed
• [Journal Article] Two-Dimensional Simulation of Nonlinear Acoustic Wave Propagation Using Constrained Interpolation Profile Method (2009)
  • Author(s): M. Konno, K. Okubo, T. Tsuchiya, N. Tagawa
  • Journal Title: Jpn. J. Appl. Phys. 48
  • Peer Reviewed
• [Journal Article] Consideration of an Absorbing Boundary Condition (ABC) Using CIP method for FDTD Acoustic Field Analysis (2009)
  • Author(s): K. Okubo, S. Oh, T. Tsuchiya, N. Takeuchi
  • Journal Title: J. Acoust. Soc. Jpn Vol.30(2009),No.2 Pages: 132-135
  • Peer Reviewed
• [Journal Article] 野外観測と室内実験で検出される岩石表面の正帯電 (2009)
  • Author(s): 竹内昭洋, 二田祐佳子, 大久保寛, 中村行信, 阿部道彰, 竹内伸直
  • Journal Title: 電気学会論文誌(A) Vol.129(2009),No.3 Pages: 153-154
  • NAID: 10024772865
  • Peer Reviewed
• [Journal Article] Electric and Ionic Environmental Circumstances Interacting at Hosokura Underground Mine in Northeast Japan (2009)
  • Author(s): Akihiro Takeuchi, K.Okubo, Shun Watanabe, Yukinobu Nakamura, Nobunao Takeuchi
  • Journal Title: IEEJ Trans.FM Vol.129 Pages: 870-874
  • Peer Reviewed
• [Journal Article] Two-Dimensional Simulation of Nonlinear Acoustic Wave Propagation Using Constrained Interpolation Profile Method (2009)
  • Author(s): M.Konno, K.Okubo, T.Tsuchiya, N.Tagawa
  • Journal Title: Jpn.J.Appl.Phys. 48
  • Peer Reviewed
• [Journal Article] Consideration of an Absorbing Boundary Condition (ABC) Using CIP method for FDTD Acoustic Field Analysis (2009)
  • Author(s): K. Okubo, Sungqwan Oh, T. Tsuchiya, and N. Takeuchi
  • Journal Title: J. Acoust. Soc. Jpn vol.30No.2 Pages: 132-135
  • Peer Reviewed
• [Journal Article] 野外観測と室内実験で検出される岩石表面の正帯電 (2009)
  • Author(s): 竹内昭洋, 二田祐佳子, 大久保寛, 中村行信, 阿部道彰, 竹内伸直
  • Journal Title: 電気学会論文誌(A) Vol.129, No.3 Pages: 153-154
  • NAID: 10024772865
  • Peer Reviewed
• [Journal Article] 散逸性媒質内の音波伝搬解析へのCIP法の適用-1次元シミュレーション- (2008)
  • Author(s): 土屋隆生, 大久保寛, 竹内伸直
  • Journal Title: 音響学会論文誌 第64巻8号 Pages: 443-450
  • NAID: 110006830220
  • Peer Reviewed
• [Journal Article] Numerical Simulation of Nonlinear Sound Wave Propagation using CIP Method -One dimensional case- (2008)
  • Author(s): T. Tsuchiya, K. Okubo, N. Takeuchi
  • Journal Title: Jpn. J. Appl. Phys 47 Pages: 3952-3958
  • Peer Reviewed
• [Journal Article] Performances of Various Types of Constrained Interpolation Profile Methods for Two-Dimensional Numerical Acoustic Simulation (2008)
  • Author(s): M. Konno, K. Okubo, T. Tsuchiya, N. Tagawa
  • Journal Title: Jpn. J. Appl. Phys 47 Pages: 3962-3963
  • Peer Reviewed
• [Journal Article] Inline Transmitter/Receiver System Using Pb(Zn1/3Nb2/3)O3-PbTiO3 Single Crystal and Poly(vinylidene fluoride) for Harmonic Pulse Compression Imaging (2008)
  • Author(s): M. Tanabe, K. Okubo, N. Tagawa, T. Moriya
  • Journal Title: Jpn. J. Appl. Phys 47 Pages: 4149-4154
  • Peer Reviewed
• [Journal Article] Numerical Simulation of Nonlinear Sound Wave Propagation using CIP Method-One dimensional case- (2008)
  • Author(s): T. Tsuchiya, K. Okubo and N. Takeuchi
  • Journal Title: Jpn. J. Appl. Phys 47 Pages: 3952-3958
  • Peer Reviewed
• [Journal Article] Performances of Various Types of Constrained Interpolation Profile Methods for Two-Dimensional Numerical Acoustic Simulation (2008)
  • Author(s): M. Konno, K. Okubo, T. Tsuchiya and N. Tagawa
  • Journal Title: Jpn. J. Appl. Phys 47 Pages: 3962-3963
  • Peer Reviewed
• [Presentation] マルチGPU並列計算による電磁界数値解析の高速化に関する検討 (2010)
  • Author(s): 河田直樹, 太久保寛, 土屋隆生
  • Organizer: 電子情報通信学会総合大会
  • Place of Presentation: Sendai
  • Year and Date: 2010-03-17
• [Presentation] 平成20年岩手・宮城内陸地震の余震に伴う地磁気オフセット信号の観測 (2010)
  • Author(s): 大久保寛, 須山裕太, 竹内昭洋, 宇津木充, 笹井洋一, 中村行信, 竹内伸直
  • Organizer: Conductivity Anomaly研究会
  • Place of Presentation: Tokyo
  • Year and Date: 2010-02-16
• [Presentation] A Method for Realizing Threshold Image Secret Sharing (2010)
  • Author(s): T. Alexandrova, Y. Suzuki, K. Okubo, N. Tagawa
  • Organizer: IWAIT
  • Year and Date: 2010-01-11
• [Presentation] Image Reconstruction Method Using Hermite Interpolation with High Accuracy Derivatives (2010)
  • Author(s): R. Seta, T. Alexandrova, N. Tagawa, K. Okubo
  • Organizer: IWAIT0111
• [Presentation] Observation of Magnetic Signals from Earthquake Faulting : Co-faulting Signals in Iwate-Miyagi Earthquake of M 7.2, NE Japan (2009)
  • Author(s): K.Okubo, A.Takeuchi, Y.Suyama, S.Watanabe, M.Utsugi, Y.Sasai, Y.Nakamura, N.Takeuchi
  • Organizer: 2009 AGU Fall Meeting
  • Place of Presentation: San Francisco
  • Year and Date: 2009-12-16
• [Presentation] Observation of Magnetic Signals from Earthquake Faulting: Co-faulting Signals in Iwate-Miyagi Earthquake of M 7. 2, NE Japan (2009)
  • Author(s): K. Okubo, A. Takeuchi, Y. Suyama, S. Watanabe, M. Utsugi, Y. Sasai, Y. Nakamura, N. Takeuchi
  • Organizer: Proceedings of 2009 AGU Fall Meeting
  • Year and Date: 2009-12-14
• [Presentation] High Resolution Pulse Compression Imaging Using Super Resolution FM-Chirp Correlation Method (SCM) (2009)
  • Author(s): M. Fujiwara, K. Okubo, N. Tagawa
  • Organizer: Proceedings of 30th International Symposium on Acoustical Imaging
  • Year and Date: 2009-12-04
• [Presentation] A consideration of multi-Dimensional Simulation of Nonlinear Acoustic Wave Propagation Using the CIP Method (2009)
  • Author(s): M. Konno, K. Okubo, T. Tsuchiya, N. Tagawa
  • Organizer: Proceedings of 30th International Symposium on Acoustical Imaging
  • Year and Date: 2009-12-04
• [Presentation] GCIP(1,m)法を用いた電磁波伝般の数値解析 (2009)
  • Author(s): 大久保寛, 河田直樹, 土屋隆生
  • Organizer: 電子情報通信学会アンテナ伝搬研究会
  • Place of Presentation: Tokyo
  • Year and Date: 2009-11-27
• [Presentation] GPUを用いた電磁界数値解析の高速化に関する検討 (2009)
  • Author(s): 河田直樹, 太久保寛, 土屋隆生
  • Organizer: 電子情報通信学会アンテナ伝搬研究会
  • Place of Presentation: Tokyo
  • Year and Date: 2009-11-27
• [Presentation] Evaluation of Inline Transmitter/Receiver System for Intravascular Ultrasound Imaging Using Pb(Zn1/3Nb2/3)O3-PbTiO3 Single Crystal and Polyvinylidene Fluoride (2009)
  • Author(s): M. Tanabe, K. Okubo, N. Tagawa, T. Moriya
  • Organizer: Ultrasonics Symposium, IEEE
  • Year and Date: 2009-11-02
• [Presentation] 平成20年岩手・宮城内陸地震の余震による地磁気オフセット (2009)
  • Author(s): 大久保寛, 竹内昭洋, 須山裕太, 渡辺峻, 宇津木充, 笹井洋一, 中村行信, 竹内伸直
  • Organizer: 2009年SGEPSS秋学会
  • Place of Presentation: Kanazawa
  • Year and Date: 2009-09-28
• [Presentation] Numerical Simulation of Sound Wave Propagation Using Hybrid Technique Combining FDTD Method and CIP Method (2009)
  • Author(s): M.Ohmiya, K.Okubo, T.Tsuchiya, N.Tagawa
  • Organizer: Ultrasonics Symposium, IEEE
  • Place of Presentation: Rome
  • Year and Date: 2009-09-22
• [Presentation] A Novel Method for Numerical Simulation of Sound Wave Propagation Using Heptic Interpolation Profile Method (2009)
  • Author(s): K.Okubo, T.Tsuchiya, R.Seta, N.Tagawa, 2009. IEEE.
  • Organizer: Ultrasonics Symposium, IEEE
  • Place of Presentation: Rome
  • Year and Date: 2009-09-21
• [Presentation] A Novel Method for Numerical Simulation of Sound Wave Propagation Using Heptic Interpolation Profile Method (2009)
  • Author(s): K. Okubo, T. Tsuchiya, R. Seta, N. Tagawa
  • Organizer: IEEE Ultrasonics Symposium
  • Place of Presentation: Rome
  • Year and Date: 2009-09-20
• [Presentation] A Novel Technique for High Resolution Ultrasound Imaging Using Super Resolution FM-Chirp Correlation Method (SCM) (2009)
  • Author(s): M. Fujiwara, K. Okubo, N. Tagawa
  • Organizer: IEEE Ultrasonics Symposium
  • Place of Presentation: Rome
  • Year and Date: 2009-09-20
• [Presentation] Numerical Simulation of Sound Wave Propagation Using Hybrid Technique Combining FDTD Method and CIP Method (2009)
  • Author(s): M. Ohmiya, K. Okubo, T. Tsuchiya, N. Tagawa
  • Organizer: IEEE Ultrasonics, Symposium
  • Place of Presentation: Rome
  • Year and Date: 2009-09-20
• [Presentation] Development of Transducer System for Tissue Harmonic Imaging of Long Coded Signal (2009)
  • Author(s): M. Tanabe, K. Okubo, T. Tsuchiya
  • Organizer: IEEE Ultrasonics Symposium
  • Place of Presentation: Rome
  • Year and Date: 2009-09-20
• [Presentation] Two-Step Detection of Displacement for Elastography Using Graph Cut. (2009)
  • Author(s): N. Akazawa, S. Ozawa, K. Okubo, N. Tagawa
  • Organizer: Eighth International Conference on the Ultrasonic Measurement and Imaging of Tissue Elasticity
  • Place of Presentation: Netherlands
  • Year and Date: 2009-09-14
• [Presentation] Direct Magnetic Signals from Earthquake Faulting : Iwate-Miyagi Eatrthquake OF M7.2, Japan (2009)
  • Author(s): K.Okubo, N.Takeuchi, M.Utsugi, K.Yumoto, Y.SASAI
  • Organizer: LAGA
  • Place of Presentation: Sopron
  • Year and Date: 2009-08-25
• [Presentation] Direct Magnetic Signals from Earthquake Faulting: Iwate- Miyagi Eatrthquake OF M7. 2, Japan (2009)
  • Author(s): K. Okubo, N. Takeuchi, M. Utsugi, K. Yumoto, Y. SASAI
  • Organizer: IAGA
  • Year and Date: 2009-08-20
• [Presentation] A consideration of multi-Dimensional Simulation of Nonlinear Acoustic Wave Propagation Using the CIP Method (2009)
  • Author(s): M. Konno, K. Okubo, T. Tsuchiya and N. Tagawa
  • Organizer: 30th International Symposium on Acoustical Imaging
  • Place of Presentation: Monterey, USA
  • Year and Date: 2009-03-03
• [Presentation] High Resolution Pulse Compression Imaging Using Super Resolution FM-Chirp Correlation Method (SCM) (2009)
  • Author(s): M. Fujiwara, K. Okubo and N. Tagawa
  • Organizer: 30th International Symposium on Acoustical Imaging
  • Place of Presentation: Monterey, USA
  • Year and Date: 2009-03-03
• [Presentation] 坑道内における地震波到達に伴う電場発生と実験室における岩石圧縮に伴う電場発生 (2009)
  • Author(s): 竹内昭洋, 二田祐佳子, 大久保寛, 中村行信, 阿部道彰, 竹内伸直
  • Organizer: Conductivily Anomaly研究会
  • Place of Presentation: Kyoto
  • Year and Date: 2009-02-17
• [Presentation] 平成20年岩手・宮城内陸地震による細倉地中電磁界観測室内の環境変化 (2008)
  • Author(s): 大久保寛, 竹内昭洋, 渡辺峻, 長濱裕幸, 中村教博, 中村行信, 竹内伸直
  • Organizer: 2008年度日本地震学会・秋季大会
  • Place of Presentation: Tsukuba
  • Year and Date: 2008-11-24
• [Presentation] 平成20年岩手・宮城内陸地震の断層運動に伴う地磁気変動信号の観測 (2008)
  • Author(s): 大久保寛, 竹内昭洋, 渡辺峻, 長濱裕幸, 中村教博, 中村行信, 宇津木充, 笹井洋一, 竹内伸直
  • Organizer: 2008年度日本地震学会・秋季大会
  • Place of Presentation: Tsukuba
  • Year and Date: 2008-11-24
• [Presentation] エルミート補間多項式を用いた画像補間法の精度評価 (2008)
  • Author(s): 瀬田亮, 大久保寛, 田川憲男
  • Organizer: 23^<rd> SIP SYMPOSIUM
  • Place of Presentation: Kanazawa
  • Year and Date: 2008-11-13
• [Presentation] FDTD法とPSTD法による時間領域における音場数値解析の高精度設計法 (2008)
  • Author(s): 大久保寛, 大宮理生, 土屋隆生, 田川憲男
  • Organizer: The 29th Symposium on UltraSonic Electronics
  • Place of Presentation: Sendai
  • Year and Date: 2008-11-11
• [Presentation] 平成20年岩手・宮城内陸地震の発震時刻からの地磁気変動信号の観測 (2008)
  • Author(s): 大久保寛, 竹内昭洋, 渡辺峻, 中村教博, 長濱裕幸, 中村行信, 竹内伸直
  • Organizer: 2008年度地球電磁気・地球惑星圏学会総会
  • Place of Presentation: Sendai
  • Year and Date: 2008-10-10
• [Remarks]
  • URL: http://www.sd.tmu.ac.jp/klolab/home/index.html
• [Patent(Industrial Property Rights)] 緊急地震警報を発するための方法および装置 (2008)
  • Inventor(s): 大久保寛, ほか
  • Industrial Property Rights Holder: 大久保寛, ほか
  • Industrial Property Number: 2008-255919
  • Filing Date: 2008-10-01