Abstract
The paper presents a new concept of creating a program for calculating ground subsidence caused by underground mining extraction, which is substantially different than previously used solutions. Instead of compiling the calculation algorithm to an executable file, the whole application algorithm has been written in the Bentley MicroStation graphic environment’s interpreted language. This graphic environment is used in mining for keeping mining maps and the format is used for storing finished and designed mining exploitation data sets. The paper describes S. Knothe’s theory of the influence of mining exploitation on the terrain surface in the context of the calculation methodology used for terrain subsidence computation. Based on the theory of influence, the structure of the created MVBA (MicroStation Visual Basic for Applications) algorithm for interpolating subsidence contours is described. The new application is called uDEFO. Calculation results from the program are compared with calculation results from software currently used in coal mines.
Highlights
Underground exploitation of mineral resources causes many negative effects on the terrain surface
The paper presents a new concept of creating a program for calculating ground subsidence caused by underground mining extraction, which is substantially different than previously used solutions
One of the basic effects of underground exploitation is ground deformation caused by the extraction of mineral deposits that can be seen on the surface as a subsidence basin [3]
Summary
Underground exploitation of mineral resources causes many negative effects on the terrain surface. Specialist systems for processing digital maps have been developed [10,11]; this type of software causes a problem with the integration of parcel data in CAD systems with geometrical data in ground deformation forecasting software. This is often solved at the lowest level of integration by exporting data and importing it into another system. The results of forecasts from computation programs are most often imported into CAD Software to prepare cartographic documentation and are stored in two different systems To solve this problem the authors propose a new solution which involves the use of a third level of data integration. The designed application will eliminate the process of data exchange between systems and limit the possibility of human error
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