Application of high-density resistivity survey in flood fighting of Poyang Lake polder embankment

Due to the causes of surrounding environment, dam quality and regional geological situation etc., the polder embankments in Poyang Lake area are prone to suffering accidents of body seepage and foundation piping, which would directly threaten the embankment safety when the water level is high in flood season. To solve the poor-effective traditional leakage treatment method for Xihedong embankment, high-density resistivity survey was used to detect the hidden defects to provide more accurate evidence for treatment. The feasibility and effectiveness of the method are illustrated and the suggestions for in-situ probing are given.