Study Of Gas Management Information System For Coal Mine Based On Gis

Safety production is always the most important thing in coal mining industry, and gas disaster menaces coal mining safety seriously. The fast spread of Geographic Information System(GIS) offers new technologies and ideas to prevent and control gas. With the increase of mining depth, gas Information became more complicated and variable. Conventional gas management information system which was based on Relational Database had not been competent for the work. Therefore, making full use of the integrated data environment and visualized analysis software platform in Geographic Information System, developing Progress in prevention and cure technology of colliery gas calamity actively and establishing an effectual gas information management system held great practical directive significance to the safety in production of the colliery. Aiming to manage gas information high efficiently, scientifically and visually, the main contents of this paper are as follows:(1) By analyzing the different development mode of Geographic Information System and studing mainstream development platform ArcGIS 9.2 of Geographic Information System, the development scheme which apply ArcGIS Engine as the components of secondary development were confirmed.(2) Integration system database were set up. The digitalization of gas geological map about Shihe coal mine and the establishment of spatial database were finished on ArcGIS 9.2, a leading software for desktop and mapping. applied SQL Server 2000 and ArcSDE 9.2 spatial data management engine technology as the background database development platform, spatial database and property database were organized and managed integratively.The powerful data management capability of Relational Database was exerted entirely, retrieval efficiency of spatial data was improved.(3) The method of using GIS to forecast coal and gas outburst was primarily discussed. Based on analyzing the main geological factors affecting coal and gas outburst, the article determined consistent coefficient of coal, depth of coal bed, gas content and so on as basic indicators influenced coal and gas outburst. combined with analytic hierarchy process and fuzzy comprehensive evaluation method, the model of forcastingcoal and gas burst was established and by using GIS spatial analysis function, region of maps was divided.a Intuitive method of coal and gas outburst forecast emerged, which improved the forecasting accuracy and maked the forecasting result visualized.(4) System main GIS functional modules were came true. Applying Visual Basic 6.0 as the visual programming environment and ArcGIS Engine as the components of secondary development, we establish the coal mines gas information management system based on GIS. His module of map operation, spatial measuring and interactive query maked electronic map function to come ture; map editing module maked spatial data Real Time maintained and updated. The best path analysis module provided decision support for Selecting the Optimum Escape Routes and Scheduling relief staff and material.Through the study of this subject, it not only provided a scientific and effective gas information management mode based on GIS, but also gave impetus to the development of China's coal mining enterprises. It played a role in practice.