Monitoring the impact of groundwater pumping on infrastructure using geographic information system (GIS) and persistent scatterer interferometry (PSI)

摘要: Transportation infrastructure is critical for the advancement of society. Bridges are vital an efficient transportation network. across world undergo variable deformation/displacement due to Earth’s dynamic processes. This displacement caused by ground motion, which occurs from many natural and anthropogenic events. Events causing deformation include temperature fluctuation, subsidence, landslides, earthquakes, water/sea level variation, subsurface resource extraction, etc. Continual may cause bridge failure, putting civilians at risk, if not managed properly. Monitoring displacement, large small, provides evidence state health bridge. Traditionally, monitoring has been executed through on-site surveys. Although this method systematic successful, it most cost-effective. Through technological advances, satellite-based Persistent Scatterer Interferometry (PSI) Geographic Information Systems (GIS) have provided a system analyzing over time. applied distinguish bridges that more risk than others generating models display various locations along each A bridge’s its potential can be estimated upon analysis measured rates. In return, process done much faster rates; saving time, money resources. PSI data covering Oxnard, California, revealed both regional displacement. maintained different patterns within Oxnard area displayed overall downward movement matching subsidence trends observed in area. Patterns displacement-time series plots provide two types mechanisms. Long-term movements correlate with relatively using Oxnard. Thermal dilation seasonal changes short-term variabilities unique Overall, said linking geologic, weather, groundwater shown promise importantly differentiating between site-specific displacements.