Research On MapX-based Coal And Gas Outburst Pre-warning Technology

Combining the project of design and development of GIS-based mine safety information system and the pre-warning mechanism which was put forward in the examination outline of national registered safety engineer in 2008, this paper take the danger warning of coal and gas outburst as researching object, through the comprehensive employment of pre-warning principle, outburst forecast technique, geographical information system (GIS) technique and safety system engineering analytical approach, established coal and gas outburst pre-warning theory, put forward pre-warning logic process and GIS-based pre-warning standard-realizing process of coal and gas outburst.At the same time of theoretical innovation, this research carried out a second development with MapX component of GIS, and constructed coal and gas outburst pre-warning system, realized data integrated management and visualization. This achievement can provide reliable basis for coal and gas outburst prevention as well as emergency management. The concrete achievement and main progress are as follows:(1) The research work comprehensively employs pre-warning principle, coal and gas outburst prediction technology, and analysis methods of safety systems engineering, established coal and gas outburst pre-warning theory, defined the theoretical contents, put forward coal and gas outburst pre-warning logic process, formed a complete pre-warning theoretical system of coal and gas outburst.(2) This paper analyzed pre-warning functions of geographical information system, and the merits of GIS applying in pre-warning, expounded the rationale of pre-warning signal output in GIS which involves the layers, thematic maps as well as its classified showing function applicable to pre-warning.(3) With the analysis of influencing factors in coal and gas outburst, this paper put forward the steps which constructs coal and gas outburst comprehensive pre-warning model with the theory of quantification, the research work studied GIS-based expression technique, and put forward pre-warning realizing standard process of GIS-based coal and gas outburst.(4) Through the study of spatial data and attribute data management model, the research work provided system data solutions plan, established category management model for basic data and disaster data, realized data integrated management and visualization of coal and gas outburst. (5) Through the study of the warning-sign indicators of coal and gas outburst, the research established classification criteria for pre-warning information output, put forward GIS-based pre-warning data-output level, and classification management model to the danger status of coal and gas outburst.(6) Rely on developing advantages of GIS and concrete methods of MapX, this research work use VB6.0 programming language, developed coal and gas outburst pre-warning system which combined information management and coal and gas outburst danger warning. In addition, the pre-warning system was applied to test coal and gas outburst danger, and verified its objectivity, scientificity and availability.