祐二 竹下

研究成果

年別の研究成果 1986 1999 2000 2021

• 72 Article
• 11 Conference contribution
• 4 Paper
• 1 Conference article
• 1 その他
  • 1 Editorial

年別の研究成果

年別の研究成果

検索結果

• 2021

  Assessment of water retention test by continuous pressurization method

  Kim, B. S., Hatakeyama, M., Park, S. W., Park, H. S., Takeshita, Y. & Kato, S., 3月 1 2021, In: Geotechnical Testing Journal. 44, 2

  研究成果 › 査読

  • Pressurization 100%
  • water retention 89%
  • Water 44%
  • pore pressure 34%
  • atmospheric pressure 34%
  1 被引用数 (Scopus)
• 2020

  Disaster report of 2018 July heavy rain for geo-structures and slopes in Okayama

  Nishimura, S., Takeshita, Y., Nishiyama, S., Suzuki, S., Shibata, T., Shuku, T., Komatsu, M. & Kim, B., 2月 2020, In: Soils and Foundations. 60, 1, p. 300-314 15 p.

  研究成果 › 査読

  Open Access

  • Rain 100%
  • Rivers 90%
  • Disasters 85%
  • fill 81%
  • disaster 75%
  19 被引用数 (Scopus)
• 2019

  Evaluation of capillary barrier system under lateral non-flow condition of sand layer

  Kim, B. S., Takeshita, Y., Park, S. W. & Kato, S., 2019.

  研究成果 › 査読

  • model test 100%
  • sand 85%
  • rain 59%
  • infiltration (hydrology) 58%
  • evaluation 48%

• Field techniques for measuring soil hydraulic properties in unsaturated soils

  Takeshita, Y., 2019, p. 1-7. 7 p.

  研究成果 › 査読

  Open Access

  • soil hydraulic properties 100%
  • hydraulic property 67%
  • measuring 42%
  • water content 32%
  • soil water content 31%

• Preface

  Zhang, F., Kohgo, Y. & Takeshita, Y., 2019, In: 7th Asia-Pacific Conference on Unsaturated Soils, AP-UNSAT 2019.

  研究成果 › 査読
• 2017

  Verification of threshold line in direct shear test using DEM simulation

  Kim, B., Takeshita, Y., Kato, S. & Park, S. W., 2017, p. 1043-1046. 4 p.

  研究成果 › 査読

  • shear test 100%
  • Particle size 82%
  • digital elevation model 78%
  • particle size 41%
  • simulation 38%
• 2016

  Characterization of soil permeability in prambanan temple yard based on development of in situ test

  Rifa'i, A., Takeshita, Y. & Komatsu, M., 2016, In: International Journal of GEOMATE. 11, 4, p. 2620-2625 6 p.

  研究成果 › 査読

  • soil permeability 100%
  • in situ test 73%
  • ponding (water management) 53%
  • permeability 51%
  • Soil 51%

• Effect of fine grain contents on the unsaturated mechanical characteristics of embankment materials

  Kim, B. S., Takeshita, Y., Kato, S. & Park, S. W., 2016, Unsaturated Soil Mechanics from Theory to Practice - Proceedings of the 6th Asia-Pacific Conference on Unsaturated Soils. CRC Press/Balkema, p. 281-286 6 p.

  研究成果

  • embankment 100%
  • infiltration (hydrology) 58%
  • suction 57%
  • granite soils 47%
  • material 40%

• Effect of suction stress on critical state of compacted silty soils under low confining pressure

  Kim, B. S., Park, S. W., Takeshita, Y. & Kato, S., 12月 1 2016, In: International Journal of Geomechanics. 16, 6, D4016010.

  研究成果 › 査読

  • silty soils 100%
  • compacted soils 92%
  • silty soil 87%
  • critical state 82%
  • confining pressure 71%
  16 被引用数 (Scopus)

• Measurement of soil-water characteristic curve with a continuous pressurization method

  Kato, S., Hatakeyama, M., Abe, H., Kim, B. S. & Takeshita, Y., 2016, Unsaturated Soil Mechanics from Theory to Practice - Proceedings of the 6th Asia-Pacific Conference on Unsaturated Soils. Chen, Z., Wei, C., Sun, D. & Xu, Y. (eds.). CRC Press/Balkema, p. 379-382 4 p. (Unsaturated Soil Mechanics from Theory to Practice - Proceedings of the 6th Asia-Pacific Conference on Unsaturated Soils).

  研究成果

  • soil water characteristic 100%
  • soil water 54%
  • atmospheric pressure 31%
  • air 22%
  • testing 22%
  1 被引用数 (Scopus)

• Realization of a Safe and Secure Society using ICT in Shiojiri-City, Nagano Prefecture, Japan

  Suzuki, H., Fuwa, Y., Asano, D. K., Komatsu, M., Takeshita, Y., Futagawa, M., Motoyama, E., Seryu, S. & Kaneko, H., 2月 8 2016, Proceedings of the 2015 2nd International Conference on Information and Communication Technologies for Disaster Management, ICT-DM 2015. Institute of Electrical and Electronics Engineers Inc., p. 186-192 7 p. 7402051

  研究成果

  • Disasters 100%
  • Japan 79%
  • Rivers 52%
  • disaster 22%
  • broadcast 14%
  1 被引用数 (Scopus)
• 2015

  Fabrication of a hydrophilic property impedance sensor to stably monitor soil water content for slope failure prognostics

  Futagawa, M., Ito, T., Kunii, A., Watanabe, M., Suzuki, H., Fuwa, Y., Takeshita, Y. & Komatsu, M., 12月 31 2015, 2015 IEEE SENSORS - Proceedings. Institute of Electrical and Electronics Engineers Inc., 7370547. (2015 IEEE SENSORS - Proceedings).

  研究成果

  • moisture content 100%
  • Water content 99%
  • soils 96%
  • Hydrophilicity 82%
  • Soil 78%
  4 被引用数 (Scopus)

• Study on Opening between Shear Boxes using DEM Simulation

  Kim, B. S., Takeshita, Y., Park, S. W. & Kato, S., 2015, p. 681-684. 4 p.

  研究成果 › 査読

  Open Access

  • distinct element method 100%
  • shear stress 71%
  • shear test 59%
  • Internal friction 43%
  • Rain 37%
• 2014

  Study on mechanical behavior of non-wettable sands

  Kim, B. S., Takeshita, Y., Kato, S. & Park, S. W., 1月 1 2014, Unsaturated Soils: Research and Applications - Proceedings of the 6th International Conference on Unsaturated Soils, UNSAT 2014. Taylor and Francis - Balkema, p. 159-165 7 p. (Unsaturated Soils: Research and Applications - Proceedings of the 6th International Conference on Unsaturated Soils, UNSAT 2014; vol. 1).

  研究成果

  • sand 100%
  • soil 59%
  • shear strength 36%
  • soil mechanics 25%
  • forest fires 21%
  5 被引用数 (Scopus)
• 2013

  Construction of a sensor network to forecast landslide disasters: Sensor terminal development and on-site experiments

  Suzuki, H., Kuroyanagi, D., Asano, D. K., Komatsu, M., Takeshita, Y., Sawada, K., Futagawa, M., Nose, H. & Fuwa, Y., 2013, Wired/Wireless Internet Communication - 11th International Conference, WWIC 2013, Proceedings. p. 180-191 12 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 7889 LNCS).

  研究成果

  • Landslide 100%
  • Disaster 83%
  • Sensor Networks 80%
  • Landslides 77%
  • Forecast 67%

• Fabrication of a slope failure prediction sensor using miniaturized EC sensor

  Futagawa, M., Komatsu, M., Suzuki, H., Takeshita, Y., Fuwa, Y. & Sawada, K., 2013, In: IEEJ Transactions on Sensors and Micromachines. 133, 9, p. 278-283+5

  研究成果 › 査読

  • Fabrication 100%
  • Water content 97%
  • Soils 70%
  • Sensors 69%
  • Monitoring 50%
  8 被引用数 (Scopus)
• 2012

  Effective water harvesting using capillary barrier of unsaturated soils

  Morn, T., Inoue, M., Komatsu, G., Kadoguchi, R. & Takeshita, Y., 2012, 5th Asia-Pacific Conference on Unsaturated Soils 2012. p. 707-710 4 p. (5th Asia-Pacific Conference on Unsaturated Soils 2012; vol. 2).

  研究成果

  • water harvesting 100%
  • soil layer 63%
  • soil 33%
  • water 20%
  • green vegetable 16%

• Estimation of water diversion provided by capillary barrier of soils

  Nakafusa, S., Kobayashi, K., Morii, T. & Takeshita, Y., 11月 27 2012, 5th Asia-Pacific Conference on Unsaturated Soils 2012. p. 643-647 5 p. (5th Asia-Pacific Conference on Unsaturated Soils 2012; vol. 2).

  研究成果

  • soil layer 100%
  • soil 52%
  • water 43%
  • water flow 35%
  • soil surface 18%
  4 被引用数 (Scopus)
• 2010

  Alternative measures for soil slope stability using capillary barrier of soil

  Morii, T., Takeshita, Y., Inoue, M. & Matsumoto, S., 12月 1 2010, Unsaturated Soils: Theoretical and Numerical Advances in Unsaturated Soil Mechanics - Proceedings of the 4th Asia Pacific Conference on Unsaturated Soils. p. 319-324 6 p. (Unsaturated Soils: Theoretical and Numerical Advances in Unsaturated Soil Mechanics - Proceedings of the 4th Asia Pacific Conference on Unsaturated Soils).

  研究成果

  • slope stability 100%
  • gravel 69%
  • sand 49%
  • soil 49%
  • infiltration (hydrology) 45%
  7 被引用数 (Scopus)

• Non-destructive measurements of unsaturated seepage flow using surface ground-penetrating radar

  Takeshita, Y., Morikami, S., Yamashita, T., Kuroda, S., Morii, T. & Inoue, M., 2010, Experimental and Applied Modeling of Unsaturated Soils - Proceedings of the 2010 GeoShanghai International Conference. 202 GSP ed. p. 211-217 7 p. (Geotechnical Special Publication; no. 202 GSP).

  研究成果

  • Seepage 100%
  • ground penetrating radar 84%
  • Wetting 80%
  • seepage 73%
  • Radar 64%
• 2009

  たたき土の力学的特性に関する実験的考察

  Takeshita, Y., 2009, In: 地盤工学会中国支部論文報告集. 26, 1, p. 101-106 6 p.

  研究成果

• 地中レーダを用いた砂質土地盤における不飽和浸透挙動の非破壊計測

  Takeshita, Y., 2009, In: 土木学会論文集Ｃ（第３部門）.

  研究成果
• 2008

  不飽和土・不飽和地盤　不飽和地盤の調査と浸透特性値の計測

  Takeshita, Y., 2008, In: 地盤工学会誌. 56, 6, p. 62-69 8 p.

  研究成果

• 不飽和土・不飽和地盤　不飽和地盤の調査事例

  Takeshita, Y., 2008, In: 地盤工学会誌. 56, 7, p. 77-83 7 p.

  研究成果

• 誘電法を用いた土中水分計測による不飽和地盤の浸透特性値の測定方法

  Takeshita, Y., 2008, In: 土壌の物理性. 108, p. 11-17 7 p.

  研究成果
• 2007

  Field techniques for measuring field saturated and unsaturated hydraulic conductivity using soil moisture profile

  Takeshita, Y., 2007, In: Proceedings of the 3rd Asian Conference on Unsaturated Soils. p. 525-530 6 p.

  研究成果

• たたき土の地盤工学的性質に関する考察

  Takeshita, Y., 2007, In: 地盤工学会中国支部論文報告集. Vol.24, No.1, p. 101-106 6 p.

  研究成果

• 不飽和砂質土地盤におけるヒステリシス現象を考慮した浸透特性値の原位置試験方法

  Takeshita, Y., 2007, In: 土木学会論文集Ｃ（第３部門）. 63, 4, p. 1153-1162 10 p.

  研究成果

• 不飽和地盤の浸透特性の評価方法

  Takeshita, Y., 2007, In: 土と基礎. Vol.55, No.9, p. 20-22 3 p.

  研究成果

• 不飽和土の室内試験方法の現状

  Takeshita, Y., 2007, In: 土と基礎. Vol.55, No.9, p. 11-13 3 p.

  研究成果
• 2006

  地中レーダを用いた浅層地盤における土中水分量の原位置計測

  Takeshita, Y., 2006, In: 地盤工学会「降雨時の斜面モニタリング技術とリアルタイム崩壊予測に関するシンポジウム」発表論文集. p. 31-36 6 p.

  研究成果

• 土中水分計測データを用いた簡便な原位置試験方法による不飽和砂質土地盤の飽和・不飽和透水係数の測定

  Takeshita, Y., 2006, In: 土木学会論文集Ｃ（第３部門）. Vol.62, No.4, p. 831-839 9 p.

  研究成果

• 不飽和地盤における原位置透水試験―水分分布計測による不飽和透水係数の測定法

  Takeshita, Y., 2006, In: 土と基礎. Vol.54, No.5, p. 10-12 3 p.

  研究成果
• 2004

  Measurement of groundwater behavior in sandy soils using surface ground penetrating radar

  Takeshita, Y., Kobayashi, H., Tao, K. & Kaihotsu, I., 12月 1 2004, Proceedings of the Tenth International Conference Ground Penetrating Radar, GPR 2004. Slob, E., Yarovoy, A. & Rhebergen, J. B. (eds.). p. 517-520 4 p. (Proceedings of the Tenth International Conference Ground Penetrating Radar, GPR 2004; vol. 2).

  研究成果

  • Groundwater 100%
  • Radar measurement 79%
  • Embankments 68%
  • Radar 68%
  • Soils 66%
  5 被引用数 (Scopus)

• Permeability of sand sediment soil determined by the pressure infiltrometer test

  Takeshita, Y., 2004, In: Proceedings ISC-2 on Geotechnical and Geophysical Site Characterization. Vol.1, p. 749-755 7 p.

  研究成果

• Site Characterization of Sand Sediment Soil by Using In-situ Permeability Test

  Takeshita, Y., 2004, In: Proceedings of the 15 Southeast Asian Geotechnical Conference. Vol.1, p. 127-132 6 p.

  研究成果
• 2003

  In-situ measurement and evaluation of soil permabbility in sand sediment

  Takeshita, Y., 2003, In: Proceedings of the Asian Conference on Unsaturated Soils UNSAT-ASIA 2003. p. 107-112 6 p.

  研究成果

• Practical determination of hydraulic conductivity of sand sediment soils

  Takeshita, Y., 2003, In: Journal of Rainwater Catchment Systems. Vol.9, No1, p. 42375

  研究成果

• Practical determination of soil permeability of sand sediment that includes grave and cobbles

  Takeshita, Y., 2003, In: Proceedings of the international conference on Problematic soils. p. 393-400 8 p.

  研究成果

• 水砕スラグ微粉により安定処理した砕石スラッジの地盤工学的特性

  Takeshita, Y., 2003, In: 土と基礎. Vol.51, No.4, p. 26-28 3 p.

  研究成果

• 地中レーダによる地盤の水分動態の非破壊計測方法

  Takeshita, Y., 2003, In: 土木学会論文集. No.729, 62, p. 169-176 8 p.

  研究成果
• 2002

  Field measurement of unsaturated soil hydraulic properties using constant head permeability test

  Takeshita, Y., 2002, In: Proceedings of the third international conference on unsaturated soils, UNSAT2002,. Vol.1, p. 417-423 7 p.

  研究成果

• Hydraulic design of flow through rockfill embankments

  Takeshita, Y., 2002, In: Proceedings of the third international conference on DAM ENGINEERING. p. 205-212 8 p.

  研究成果

• Measurement of soil water content in unsaturated slopes using ground penetrating radar

  Takeshita, Y., 2002, In: Proceedings of the 14 Southeast Asian Geotechnical Conference. Vol.3, p. 295-299 5 p.

  研究成果

• Measurement of soil water content profiles in unsaturated soils using ground-penetrating radar

  Takeshita, Y., Kobayashi, H., Tao, K., Tanaka, K. & Kaihotsu, I., 12月 1 2002, In: Acta Universitatis Carolinae, Geologica. 46, 2-3, p. 391-394 4 p.

  研究成果 › 査読

  • ground penetrating radar 100%
  • soil water 76%
  • water content 74%
  • water table 70%
  • sandy soil 58%

• 原位置透水試験による砂質土地盤の不飽和浸透特性値の測定法

  Takeshita, Y., 2002, In: 地下水学会誌. Vol.44, issue 1, p. 21-33 13 p.

  研究成果
• 2001

  Determination of Soil Hydraulic Properties of Unsaturated Soil Using Guelph Pressure Infiltrometer and Genetic Algorithms

  Takeshita, Y., 2001, In: International Conference on In Situ Measurement of Soil Properties and Case Histories. p. 257-261 5 p.

  研究成果

• 原位置浸潤試験法を用いた土砂堆積地盤の透水性の評価

  Takeshita, Y., 2001, In: 土と基礎. Vol.49, No.11, p. 7-9 3 p.

  研究成果
• 2000

  Accuracy of in-situ permeability test using the pressure infiltrometer method.

  Takeshita, Y., 2000, In: Default journal. 207, p. 29-39 11 p.

  研究成果

• Determination of field-saturated hydraulic cinductivity in unsaturated soil by pressure infiltrometer method.

  Takeshita, Y., 2000, In: Proceedings of the Asian Conference on Unsaturated Soil UNSAT-ASIA. p. 421-426 6 p.

  研究成果