Application of ground penetrating radar in concrete defect detection of sluice floor

The defect investigation of sluice floor is an important measure to ensure the safe operation sluice. due traditional drilling methods will cause damage floor, and appearance inspection compressive strength test can not evaluate internal defects reinforced concrete in floor. In this paper, we apply ground penetrating radar(GPR) quality a gate seawall. And describe layout, detection principle data processing flow GPR. Then simulate propagation characteristics radar electromagnetic wave presence twodimensional electrical anomaly bodies by finite difference method. Through analyzing amplitude, frequency event reflection shown gray map GPR profiles, determine dividing line between muddy silty clay, finding out density steel concrete, framing location construction joints suspected water-filled gaps.