Framework for mine-water inrush scene constructing and drilling trajectory planning: a case study in the Zijiang Coal Mine, China

• Published in: Arabian journal of geosciences Vol. 12; no. 16; pp. 1 - 13
• Main Authors: Zhang, Jian, Wu, Qiang, Hao, Duohu
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.08.2019; Springer Nature B.V
• Subjects: Accidents; Algorithms; Boreholes; Coal; Coal mines; Coal mining; Drilling; Earth and Environmental Science; Earth science; Earth Sciences; Engineering; Frameworks; Functions (mathematics); Geology; Graphics; Mathematical analysis; Mathematical programming; Mine waters; Mining accidents & safety; Mining industry; Multiple objective analysis; Occupational safety; Original Paper; Polynomials; Safety; Shortest-path problems; Technical services; Three dimensional models; Trajectory planning; Water; Water inrush; China; Mine-water inrush scene; Drilling trajectory planning; Multi-objective programming
• ISSN: 1866-7511; 1866-7538
• DOI: 10.1007/s12517-019-4643-2

Mine-water inrush accidents have been threatening mining safety and been one of the major hazard sources of coal mines in China. Three-dimensional (3D) geological models can aid with mine safety. This study proposes a framework of mine-water inrush scene constructing and drilling trajectory planning using 3D geological models. The framework is applied to the Zijiang Coal Mine in South China. First, based on the Object-Oriented Graphics Rendering Engine (OGRE), a 3D geological visualization platform for the coal mine is constructed using C++. Second, water-particle models are constructed using the Realflow and imported into the platform. Third, surface functions are fitted and expressed by polynomial equations. Subsequently, the theoretical shortest path is calculated with Dijkstra’s algorithm. Then, a multi-objective programming model is constructed to calculate the satisfactory solution of time and engineering cost. Based on this framework, the models of water-inrush scene and drilling trajectory of the Zijiang Coal Mine are constructed. For comparison, field trials are conducted to show the difference between the theoretical and actual trajectories. Finally, the results show that the theoretical inclined trajectory and the actual inclined borehole consume less time, and the uncertainty of 3D data and the complexity of geological bodies. The framework provides a technical support for mine safety and has great potential in future engineering applications.