Increasing amounts of earth dam failures require better real-time monitoring systems to determine the changing conditions in the dams. In this study, smart acrylamide grouted sand columns with highly sensing property was developed for monitoring the simulated embankment using the changes in the electrical resistivity compared to the failure strain. With the addition of 0.1% of conductive filler (CF) made the acrylamide grouted sand a more piezoresisitive material. Just adding 0.1% CF increased the piezoresistivity of the grouted sand to over 20% at peak stress compared the compressive failure strain of 2%, make it over 10 times more sensitive. Also the addition of 0.1% CF is very cost effective. Vipulanandan stress-strain and piezoresisitive p-q models were used predict the compressive stress-strain and piezoresistivity of the smart grouted sand with varying sizes of aggregates. Also the new two-probe method was adopted to monitor the real-time changes in the piezoresisitive grouted sand. The entire grouted sand column installed in the embankment was a bulk sensor with no buried sensors. The permeability of the grouted sand was less than 10~(-10) cm/s. In order to investigate the critical locations to install the smart grouted sand columns, finite element method was used with various embankment configurations. Seepage with stability analyses were performed to quantify the changes in the shear stresses and resistivity to locate the smart piezoresistive grouted sand columns on the upstream side of the embankment and foundations. Analyzes showed the response based on resistivity was over 25 times higher than the strain.
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