Design and Experiment of the Frictional Sensor for Underground Structure Monitoring

Abstract:

A type of frictional sensor which can be applied to measure the frictional force between soil and underground structure is invented. The key part of the senor is an elastic beam which has very small axial deformation under axial force but has much larger transverse deformation under same transverse forces, and the frictional force is calculated from the beam deflection. The advantage of the sensor is that it can be easily produced and it has very clear mechanical response under frictional force. Numerical analysis and experiments show that the frictional sensor is stable with high resolution. Moreover, it is almost not influenced by soil pressure normal to the soil-structure interface.

• Periodical: Applied Mechanics and Materials (Volumes 578-579)
• Pages: 1012-1015
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.578-579.1012
• Online since: July 2014
• Authors: Jian Wang*, Wei Ping Lian, Hui Hua
• Keywords: Design, Elastic Beam, Frictional Sensor, Underground Structure

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