Using particle image velocimetry to monitor soil behavior during landslides in flume experiments

• Grant number: 19/16458-2
• Support Opportunities: Scholarships abroad - Research Internship - Master's degree
• Effective date (Start): October 21, 2019
• Effective date (End): March 19, 2020
• Field of knowledge: Physical Sciences and Mathematics - Geosciences - Geology
• Principal Investigator: Ana Elisa Silva de Abreu
• Grantee: Malena D'Elia Otero
• Supervisor: Amin Askarinejad
• Host Institution: Instituto de Geociências (IG). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Research place: Delft University of Technology (TU Delft), Netherlands
• Associated to the scholarship: 18/15869-6 - Use of sensor nodes for soil variables monitoring and landslides early detection, BP.MS

Abstract

Early Warning Systems (EWS) are a non-structural measure for disaster prevention. The use of sensor nodes for monitoring of environmental disasters is gradually increasing and showing promising results. An ongoing research is studying the use of accelerometers as sensor nodes for monitoring landslides in a joint effort of Campinas State University and the Technological Research Institute of São Paulo State. In this study Particle Image Velocimetry (PIV) will be used to validate the displacement data estimated from the measurements performed with the accelerometers in flume experiments. PIV is a non-invasive technique which has been largely and successfully used to calculate displacements in geotechnical models. It allows the estimation of superficial displacements by comparing images from the same study area in different times. The flume experiments and data acquisition will be performed in Brazil in the months preceding the scholar exchange. During the scholar exchange in Delft University of Technology in Holland the images of the experiments will be treated with the PIV technique and compared to the velocities estimated from the accelerometers data. The results of the research will contribute to increase the knowledge about the triggering of landslides in sandy soils and to validate the applicability of innovative sensors for landslide risk monitoring. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

MALENA DELIA OTERO; ANA ELISA SILVA DE ABREU; AMIN ASKARINEJAD; MARCELA PENHA PEREIRA GUIMARÃES; EDUARDO SOARES DE MACEDO; ALESSANDRA CRISTINA CORSI; RYNALDO ZANOTELE HEMERLY DE ALMEIDA. Use of low-cost accelerometers for landslides monitoring: results from a flume experiment. Soils and Rocks, v. 45, n. 3, 2022-08-22. (17/50343-2, 18/15869-6, 19/16458-2)