The invention discloses a drilling
data model construction method based on BIM, and the method comprises the steps: building a spatial information
database according to various types of exploration data, and then carrying out the building of a drilling
data model: reading the exploration data of modeling region
surface point cloud data or contour lines from the spatial information
database, and automatically building a surface model; reading the drilling data of the modeling area from the spatial information
database, and automatically creating a drilling
data model; judging whether the groundsurface model conflicts with or is unreasonable with the ground surface generated by the drilling data model or not, and if so, correcting the drilling data of the modeling area; and if not, automatically
numbering and loading user-defined attribute information, and outputting / storing the drilling data model. According to the method, automatic modeling is achieved, seamless
butt joint of the building BIM model can be achieved, the
simulation performance of traditional BIM application such as early-stage planning design, earthwork calculation and site construction
simulation can be greatly improved, and the accuracy of geologic body numerical analysis in the
engineering geology field is greatly improved.