Volume 48 Issue 6
Dec.  2020
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FAN Juan, HOU Enke, JIN Dewu, QIAO Wei, NAN Shenghui. Construction and transformation technology of three-dimensional fine model of mine water diversion structure[J]. COAL GEOLOGY & EXPLORATION, 2020, 48(6): 186-194. DOI: 10.3969/j.issn.1001-1986.2020.06.025
Citation: FAN Juan, HOU Enke, JIN Dewu, QIAO Wei, NAN Shenghui. Construction and transformation technology of three-dimensional fine model of mine water diversion structure[J]. COAL GEOLOGY & EXPLORATION, 2020, 48(6): 186-194. DOI: 10.3969/j.issn.1001-1986.2020.06.025
shu

Construction and transformation technology of three-dimensional fine model of mine water diversion structure

  • 1. College of Geology and Environment, Xi'an University of Science and Technology, Xi'an 710054, China;

  • 2. Xi'an Research Institute Co. Ltd., China Coal Technology and Engineering Group Corp., Xi'an 710077, China;

  • 4. Shaanxi Key Laboratory of Coal Mine Water Hazard Prevention and Control Technology, Xi'an 710077, China

Funds: 

National Key R&D Program of China(2017YFC0804100)；Science and Technology Innovation Fund of Xi’an Research Institute of CCTEG(2015XAYMS20)

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  • Received Date: May 06, 2020
  • Revised Date: November 08, 2020
  • Published Date: December 24, 2020
    Graphical Abstract
    • Abstract
  • In order to solve the technical problems of fine depiction of mine water structures and flexible inheritance of 3D geological models, such as the lack of fine depiction of internal rock structure of trapped columns and inaccurate fusion of multi-source data, the research on the construction method of multi-source data fusion solid model of mine water guide structures, the fine model construction process and the development of model conversion system was carried out. Based on the theory of data fusion distributed structure, the three-level coupling strategy of geological data coupling, entity model coupling and construction model coupling was adopted to establish a set of construction methods for fusion of multi-source data of hydrogeological exploration into three-dimensional geological entity model. Through the four key steps of standardized preprocessing of multi-source heterogeneous geological data, tracking and classification, data registration, correlation and fusion, a solid model of multi-source data fusion of mine water-conducting structure was constructed. On the basis of geostatistical research, the basic concepts of "mine fine hydraulic structure model" and "wide area generalization model" were proposed, and the wide area conceptual model and fine model of the trapped column were constructed, taking the trapped column as an example. According to the properties and data structure characteristics of the two 3D models of SURPAC and FLAC3D, the conversion method between SURPAC and FLAC3D models of mine hydraulic structures was proposed. Developed the SURPAC-FLAC3D model conversion system using JAVA and TCL languages, which supports local, network operation and remote control of multiple machines for multiple users simultaneously. The system finally achieved the goal of converting the coupled model of water-guiding tectonic entities into the FLAC3D computational model, which provides technical support for fine investigation and fusion construction of mine geological conditions and accurate prediction and prevention of mine water damage.
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