Detection of sinkholes or anomalies using full seismic wave fields : phase II [summary].

PDFTech Reporthttp://www.fdot.gov/research/Completed_Proj/Summary_SMO/FDOT-BDV31-977-29-sum.pdfBDV31-977-29SinkholesElastic wavesGeologically affected surfacesSimulationFloridaFlorida. Dept. of Transportation. Research CenterMcVay, Michael C.Tran, Khiem T.Florida. Dept. of Transportation. Research CenterUS Transportation CollectionFlorida geology with its non-uniform rock and soil layers, variable deposits of poor soils (clay, organics, etc.), and weathered (and possibly voided) limestone is a major concern for design engineers, contractors, and maintenance personnel. However, determining the makeup and integrity of the underlying soil layering can be challenging. A better and more thorough means of assessing and understanding a larger area of the subsurface at construction sites would help to determine the exact needs of a project or to efficiently maintain existing infrastructure.Research ObjectivesPreviously, the researchers developed a nondestructive surface test that uses seismic waves to yield useful information about subsurface conditions, showing its effectiveness at identifying and locating voids and anomalies (FDOT project BDK75-977-66). In this project, they further developed the method\ue2\u20ac\u2122s software and tested a field-deployable version