Construction quality detecting method of vertical compound waterproof curtain body

The invention relates to a construction quality detecting method of a vertical compound waterproof curtain body, belongs to the technical field of design and construction of geotechnical engineering, and solves the problems of weak accuracy and low efficiency in traditional drilling coring methods. The detecting method comprises the following steps: (1) multiple PVC pipes, a vibration source and an detector are provided; (2) the vertical compound waterproof curtain body is divided into multiple detecting units; each detecting unit is divided into multiple testing hole sections; each testing hole section comprises at least two testing holes; and the hole positions and the hole depths of the testing holes are determined; (3) the testing holes are formed; the coring is performed in the whole pile length; and the PVC pipes are put into the testing holes; (4) when one of the testing hole sections is detected, the vibration source and the detector are respectively mounted in the adjacent two testing holes; after the detection of one testing hole is finished, the hole positions of the vibration source and the detector are exchanged to finish the detection of another testing holes; and all the testing hole sections are detected in sequence; and (5) the pile quality is evaluated to give treatment suggestions.