A Self-Adaptive Virtual Borehole Generation Method for Railway 3D Engineering Geological Model
This paper proposes a linear space enhanced self-adaptive virtual borehole modeling method. This method which is oriented to the integrated comprehensive application of engineering geological plan,section data and original bore-hole data,and to realize the spatial mapping between virtual borehole and multi-source data based on conversion equation from two-dimensional linear space to three-dimensional space built by railway center line,and to solve the problem that vir-tual borehole layout is constrained by the spatial distribution of the original borehole data. Meanwhile,it designs the match-ing rules for the spacing of boreholes and the number of strati-graphic layers to construct a self-adaptive distribution model with rule threshold constraints. Then,it extracts key features and form the three-dimensional virtual borehole sequence by interpolation fusion. Typical experiments prove that the pro-posed method can process multi-source data with long zonal distribution reliably and express complex three-dimensional geological structures accurately.
3D geological modelingvirtual boreholeself-adaptive distributionmuti-source data integration
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