Verification of void re-development of marine clay and its mechanism with the influence of global warming on ground environment

2013 Fiscal Year Final Research Report

• Project/Area Number: 23656300
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Geotechnical engineering
• Research Institution: Saga University
• Principal Investigator: HINO Takenori 佐賀大学, 低平地沿岸海域研究センター, 教授 (20295033)
• Co-Investigator(Kenkyū-buntansha): CHAI Jinchun 佐賀大学, 工学系研究科, 教授 (20284614) ; JIA Rui 佐賀大学, 低平地沿岸海域研究センター, 研究機関研究員 (60598845)
• Project Period (FY): 2011 – 2013
• Keywords: 地球温暖化 / 地盤環境 / 海成粘土 / 土構造 / 構成式

Research Abstract

The verification of the hypothesis that the voids of marine clay do not change or increase with the process of the secondary ground environment change from the original environment, and as a result, high sensitivity and high compressibility occurs, leading to serious subsidence and deformation to the various structures on the ground surface was challenged.
Silica is dominant in the initial strength development process of clayey soil, and the optimum value of silica exists in the reaction with calcium. The significant initial strength development is involved not only with the change of the total amount of voids, but also with the change to the increase side of diameter in pore size distribution. The voids produced by this mechanism suggest that the voids of marine clay do not change or increase with the process of the secondary ground environment change from the original environment.

Research Products

• [Journal Article] 5.海面変動が地盤環境に及ぼす影響と評価, 講座「地球温暖化がもたらす地盤の環境変化と災害」 (2014)
  • Author(s): 日野剛徳, 柴錦春
  • Journal Title: 地盤工学会誌, 地盤工学会 Volume: Vol.62, No.1 Pages: 53-59
  • Peer Reviewed
• [Journal Article] Influences of calcium carbonate, sodium silicate and salt on clay structure, Proceedings of the 5th Young Geotechnical Engineers' Conference -5th iYGEC 2013 (Qui et al. Edited), Paris, France (2013)
  • Author(s): Usman, F., Hino, T., Jia, R. and Negami, T
  • Journal Title: The authors and IOS Press Pages: 463-466
  • DOI: 10.3233/978-1-61499-297-4-371
  • Peer Reviewed
• [Journal Article] Interpretation of coefficient of consolidation from CRS test results, Geomechanics and Engineering (2013)
  • Author(s): Jia, R., Chai, J.-C. and Hino, T
  • Journal Title: Techno-Press Volume: Vol.5, No.1 Pages: 57-70
  • Peer Reviewed
• [Journal Article] Anisotropic consolidation behavior of Ariake clay from three different CRS tests, Geotechnical Testing Journal (2012)
  • Author(s): Chai, J.-C., Jia, R. and Hino. T
  • Journal Title: American Society for Testing and Materials (ASTM) Volume: Vol.35, No.6 Pages: 1-9
  • DOI: 10.1520/GTJ103848
  • Peer Reviewed
• [Journal Article] Basic study of the fundamental behavior of Ariake marine clay, Proceedings of the 8th International Symposium on Lowland Technology ISLT 2012 (2012)
  • Author(s): Usman, F., Hino, T., Negami, T., Harianto, T. and Jia, R
  • Journal Title: Bali, Indonesia, International Association of Lowland Technology (IALT) Pages: 75-81
  • Peer Reviewed
• [Journal Article] Effect of environment change on the strength of cement/lime treated clays, Frontiers of Structural and Civil Engineering (2012)
  • Author(s): Hino, T., Jia, R., Sueyoshi, S. and Harianto, T
  • Journal Title: Higher Edcation Press & Springer Volume: Vol.6, No.2 Pages: 153-165
  • DOI: 10.1007/s11709-012-0153-y
  • Peer Reviewed
• [Journal Article] Interpretation of Quaternary Research and countermeasure of problematic lime-based deep mixing solidification in Ariake Sea coastal lowlands, Proceedings of the International Symposium on Sustainable Geosynthetics and Green Technology for Climate Change (SGCC), Bangkok, Thailand, Asian Institute of Technology (2012)
  • Author(s): Hino, T., Igaya, Y., Chai, J.-C., Jia, R. and Sueyoshi, S
  • Journal Title: International Geosynthetics Society-Thailand Volume: (CD-ROM) Pages: 307-316
  • Peer Reviewed
• [Presentation] 粘性土の初期強度発現過程と微視的土構造におけるシリカ・カルシウムの役割に関する基礎的研究 (2013)
  • Author(s): 海崎大輝
  • Organizer: 土木学会西部支部
  • Place of Presentation: 熊本大学
  • Year and Date: 2013-03-09
• [Presentation] 佐賀平野に堆積する粘性土の物理化学的性質と微視的土構造 (2013)
  • Author(s): 相賀康介
  • Organizer: 土木学会西部支部
  • Place of Presentation: 熊本大学
  • Year and Date: 2013-03-09
• [Presentation] 有明粘性土の圧密異方性と微視的土構造に関する実験的研究 (2013)
  • Author(s): 聶集祥
  • Organizer: 土木学会西部支部
  • Place of Presentation: 熊本大学
  • Year and Date: 2013-03-09
• [Presentation] Effect of dissolved silica and salt in kaolinite strength (2012)
  • Author(s): Usman, F
  • Organizer: 地盤工学会
  • Place of Presentation: 八戸工業大学
  • Year and Date: 20120714-16
• [Presentation] 有明海地域における軟弱な粘性土の圧密異方性と微視的土構造に関する研究 (2012)
  • Author(s): 聶集祥
  • Organizer: 地盤工学会
  • Place of Presentation: 八戸工業大学
  • Year and Date: 20120714-16
• [Presentation] カオリン改良土に及ぼす溶存シリカ量の影響と初期強度発現過程における強度の変化 (2012)
  • Author(s): 浪瀬智史
  • Organizer: 土木学会西部支部
  • Place of Presentation: 鹿児島大学
  • Year and Date: 2012-03-03
• [Presentation] 改良土の初期強度発現過程における強度・溶出特性の基礎的検討 (2011)
  • Author(s): 末吉聖次
  • Organizer: 地盤工学会
  • Place of Presentation: 神戸国際会議場
  • Year and Date: 20110705-07
• [Presentation] 地球温暖化が有明海沿岸低平地域における海成完新統の土構造と土質特性に及ぼす影響に関する一考察 (2011)
  • Author(s): 日野剛徳
  • Organizer: 地盤工学会
  • Place of Presentation: 神戸国際会議場
  • Year and Date: 20110705-07
• [Remarks] 陶野郁雄, 中村裕昭, 日野剛徳:近未来と地盤環境~複合的災害と地球環境に対する理学と工学の融合~, 第10 回環境地盤工学シンポジウム特別セッション講演・資料集, 地盤工学会, 日本大学文理学部, 38p, 2013