Device and method for detecting leakage of heat-preserving layer and concrete of dam

The invention provides a device and a method for detecting the leakage of heat-preserving layer and concrete of a dam. The device comprises a plurality of semi-closed protection boxes arranged betweenthe inner surface of the dam heat-preserving layer and the outer surface of the dam concrete, wherein a humidity sensor is arranged in the semi-closed protection boxes. In addition, the invention also provides a corresponding arrangement method and a detection method. According to the invention, the humidity data of the heat-preserving layer and the dam concrete can be detected in real time through the humidity sensor embedded between the concrete surface on the upstream and downstream of the dam and the inner surface of the heat-preserving layer, the leakage point and the leakage condition of the dam can be judged in time through an analysis of the abnormal high humidity data, technical support is provided for the development of follow-up dam concrete crack repairing work, meanwhile, large-area damage to the hea