Time-Lapse Electrical Resistivity Investigations for Imaging the Grouting Injection in Shallow Subsurface Cavities

<table>The figure depicts the location of sinkhole in the vicinity of highway and tube well for irrigation purpose at the study site in Yongweol-ri. Time-lapse electrical resistivity surveys were carried out in stages along the highway having orientation east-west.</table>

The Scientific World Journal

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Figure 2

Figure 2: Time-Lapse Electrical Resistivity Investigations for Imaging the Grouting Injection in Shallow Subsurface Cavities 