Study on monitoring system of soil moisture and groundwater levels using ultrasonic wave to predict slope failures
Project/Area Number |
23510230
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Natural disaster science
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Research Institution | Ritsumeikan University |
Principal Investigator |
TANAKA Katsuhiko 立命館大学, 総合科学技術研究機構, 教授 (00367997)
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Co-Investigator(Kenkyū-buntansha) |
FUKAGAWA Ryoichi 立命館大学, 理工学部, 教授 (20127129)
SAKO Kazunari 鹿児島大学, 理工学研究科, 准教授 (20388143)
FUJIMOTO Masamitsu 立命館大学, 理工学部, 助教 (60511508)
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Project Period (FY) |
2011-04-28 – 2015-03-31
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Project Status |
Completed (Fiscal Year 2014)
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Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
|
Keywords | 豪雨斜面崩壊 / モニタリング / 超音波 / 水分 / 水位 / 斜面崩壊予知 / 超音波計測 / 地下水位 / 斜面崩壊 / 野外モニタリング / 透水試験 / 土中水分 |
Outline of Final Research Achievements |
We have previously investigated a measurement method of soil moisture and groundwater level using ultrasonic wave for predicting slope failure. To apply this method to a practical field monitoring,we fabricated a multichannel monitoring system and tried to use this system in field tests,and pointed out the problems. Thunderbolt protection and detecting method for inhomogeneous soil particles were developed to use this system in a practical field monitoring. For inhomogeneous coarse-grained soils, covering the detecting surface with a homogeneous fine soil such as Toyoura sand was effective to obtain repeatable data for wetting and drying cycles.
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Report
(5 results)
Research Products
(24 results)
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[Presentation] Permeability Test in Single Borehole Using Ultrasonic Wave
Author(s)
Nobutaka Hiraoka, Takehiro Kurohara, Shunya Nakano, Katsuhiko Tanaka, Masamitsu Fujimoto, Ryoichi Fukagawa and Asako Togari
Organizer
The 8th International Symposium on Advanced Science and Technology in Experimental Mechanics (ISEM 2013)
Place of Presentation
仙台市戦災復興記念館(宮城県)
Related Report
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