The invention discloses a BIM-based
engineering quality detection method and
system, and the method comprises the steps: obtaining the spatial position three-dimensional
point data of the surface of ascanned object, so as to form a scanned three-dimensional entity
point cloud; performing
data processing on the
point cloud to obtain the complete spatial geometric dimension of the scanned object, and reversely generating a three-dimensional
point cloud model; performing comparative analysis on the three-dimensional point cloud model and a pre-generated BIM model to obtain a quality detection report. The BIM-based
engineering quality detection method and
system have the beneficial effects that: the point
cloud data of the scanned object are obtained to reversely generate the three-dimensional point cloud model, and comparative analysis is performed on the three-dimensional point cloud model and the BIM model of
engineering design, so that the deviation between the entity and the design can be compared, the construction quality evaluation is accurate, rapid, objective and comprehensive, the reason of the deviation can be found out through the exported
electronic report, correction insubsequent construction is facilitated, and the field construction quality is guaranteed.