TY - CHAP
T1 - A two-dimensional laser-scanner system for geotechnical processes monitoring
AU - Ramos Cañón, Alfonso Mariano
AU - Prada Sarmiento, Luis Felipe
AU - Larrahondo Cruz, Joan Manuel
AU - Valencia-Galindo, Miguel
AU - Trujillo-Vela, Mario Germán
AU - Beltrán-Rodriguez, L.N.
AU - Sánchez-Peralta, J.A.
AU - Tituaña-Puente, J.S.
PY - 2018
Y1 - 2018
N2 - Complex geotechnical processes such as debris or tailings flows, rain-induced landslides, foundation instability, and soil-structure interaction require advanced laboratory techniques, including remote-sensing technology. The purpose of this paper is to describe the implementation of a laboratory-scale LIDAR-type system installed on an environmental flume for geotechnical applications under 1-g conditions. A two-dimensional laser scanner device, which is commonly used in mining operations to measure conveyor-belt volumes, was adapted to move axially along the flume. The scanner measures cross-sectional elevation data on any physical model constructed in the flume to produce a digital elevation model. The flume is an instrumented chamber comprising sprinklers to simulate precipitation (controlled intensity and flow rate), a hydraulic system to induce rise in groundwater level, and a jack to vary model inclination, if required. A calibration protocol and post-processing code were developed to efficiently handle the scanner-recorded elevation data. To test and validate the experimental setup, tailings flow experiments were performed. Results show that laboratory-scale laser sensor technology is a useful and robust tool for physical modelling.
AB - Complex geotechnical processes such as debris or tailings flows, rain-induced landslides, foundation instability, and soil-structure interaction require advanced laboratory techniques, including remote-sensing technology. The purpose of this paper is to describe the implementation of a laboratory-scale LIDAR-type system installed on an environmental flume for geotechnical applications under 1-g conditions. A two-dimensional laser scanner device, which is commonly used in mining operations to measure conveyor-belt volumes, was adapted to move axially along the flume. The scanner measures cross-sectional elevation data on any physical model constructed in the flume to produce a digital elevation model. The flume is an instrumented chamber comprising sprinklers to simulate precipitation (controlled intensity and flow rate), a hydraulic system to induce rise in groundwater level, and a jack to vary model inclination, if required. A calibration protocol and post-processing code were developed to efficiently handle the scanner-recorded elevation data. To test and validate the experimental setup, tailings flow experiments were performed. Results show that laboratory-scale laser sensor technology is a useful and robust tool for physical modelling.
UR - https://www.taylorfrancis.com/chapters/edit/10.1201/9780429438646-15/two-dimensional-laser-scanner-system-geotechnical-processes-monitoring-valencia-galindo-beltr%C3%A1n-rodriguez-s%C3%A1nchez-peralta-titua%C3%B1a-puente-trujillo-vela-larrahondo-prada-sarmiento-ramos-ca%C3%B1%C3%B3n
U2 - 10.1201/9780429438646-15
DO - 10.1201/9780429438646-15
M3 - Chapter
SP - 865
EP - 870
BT - Physical Modelling in Geotechnics
ER -