Measuring device and measuring method for measuring concrete pouring height of cast-in-place pile

The invention relates to the technical field of pile foundation engineering, in particular to a measuring device and method for measuring the concrete pouring height of a cast-in-place pile. The device comprises a detection assembly, a telescopic assembly and a clamping assembly. The top wall of the detection assembly is detachably installed on the bottom wall of the telescopic assembly, the top wall of the telescopic assembly is fixedly installed on the bottom wall of the clamping assembly, the clamping assembly is movably clamped to the top wall of the pile casing, and the axis of the detection assembly and the axis of the telescopic assembly are parallel to the axis of the pile casing; the telescopic assembly can stretch out to drive the detection assembly to vertically move towards the bottom wall of the pile casing to the position between the reinforcement cage and the pouring pipe so as to detect the height of concrete poured into the pile casing. The device is simple in structure, the operation method