Geologic Model Transforming Method (GMTM) for numerical analysis modeling in geotechnical engineering

During numerical simulation of geotechnical engineering, due to the complex engineering geological condition, the simplified geologic model is usually adopted. However, the accuracy and reliability of calculating result are directly influenced by characteristic of model. The 3D geologic model can better reflect the actual geological condition. The paper presents a new and practical modeling method (Geologic Model Transforming Method) of numerical analysis by integrating geologic model and numerical model. This method is performed with the following procedures: (1) cutting the 3D geologic model according to numerical calculation region; (2) extracting control data from cutting model to reconstruct the surface model; (3) meshing and forming the numerical model automatically by the stratum attribute; (4) importing the model into numerical analysis system. An example is given to illustrate the application of the method. The implementation of the method results in high efficiency and automaticity of modeling.