A Procedure for 3D Modelling of Very Large Geotechnical Structures: Open Cast Coal Mine Case

The paper presents a procedure for utilization of photographic image data via digital photogrammetry for use in geotechnics. The process of data manipulation in various programs in thoroughly described step-by-step. The motivation of the development is to prepare the final geometrical structure for finite element method software, where numerical modelling of problems such as analysis of stability and deformations can be investigated. Additionally, methodology for applying spatial and temporal evolution of geometry is described. As an example of the procedure, a case study of development of 3D model of internal landfill of open cast coal mine Bilina, Czechia is presented.