Challenge to development of wireless multi-sensor which make remarkable progress of pore water behavior of ground

2016 Fiscal Year Final Research Report

• Project/Area Number: 26630215
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Geotechnical engineering
• Research Institution: Tohoku University
• Principal Investigator: kazama Motoki 東北大学, 工学研究科, 教授 (20261597)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: マルチセンサ / ワイヤレス / 地盤モニタリング / 間隙水 / 差圧 / 土の動き / 土中水の動き

Outline of Final Research Achievements

Monitoring technology of differential water pressure, motion of soil particle, etc. are required recently. In this research program, the following three kinds of prototype multi-wireless sensors were made and their performances were studied. 1) the multi-sensor composed of water pressure and 3-axis gyro which is used in the relatively slow ground motion such as long-term settlement and deformation, 2) the sensor composed of 3-axis accelerometer and gyro which records relatively long moving distance with relatively high velocity as a rigid body, 3) For laboratory vibration test, the sensor composed of 3-axis accelerometer, 3-axis gyro and pore water pressure meter which installed in the model ground. The data recorded in a memory is transferred by wireless contact after model vibration test.

Free Research Field

地盤工学