The invention relates to the technical field of building
engineering construction, in particular to a construction
general level management method based on fitting of a BIM technology and a surveying and mapping technology, and the method comprises the steps: carrying out the
butt joint of a
point cloud and a BIM model, determining a contour through analyzing a space error, generating
a site reference layer, comparing real-
time data, judging the
layout deviation, and generating a monitoring layer, and analyzing the deviation type to calibrate the non-compliance area and generate a judgment layer, further analyzing resource occupation judgment conflicts and generating a
list, finally dynamically updating the resource
layout state, and obtaining a construction
general level management situation map. According to the method, a reference layer is established through spatial
error analysis, a contour basis is formed, spatial offset comparison is performed in combination with a real-time acquisition state,
layout differences are dynamically captured, change records are generated, functional area data are compared to identify non-compliance areas, a judgment result is formed, conflict areas are revealed in combination with resource occupation conditions, and a
list is generated. And dense and conflict positions are marked in the situation map, so that the site is visualized, and the
resource scheduling and
construction management efficiency is improved.