.664 北京科技大学学报 第29卷 gas outburst factors,the judgment matrix of each factor was constructed by membership functions,and the pre- diction model of coal and gas outburst was established by the fuzzy comprehensive evaluation method.The pre- diction method was applied in risk type areas to forecast the coal and gas outburst quantitative intensity and the risk grade was divided in Pingdingshan typical mining area.The results show that the hierarchy process and fuzzy comprehensive evaluation method was available for forecasting the coal and gas outburst intensity. KEY WORDS coal and gas outburst;outburst forecast;analytic hierarchy process;fuzzy comprehensive evalu- ation (上接第654页) Complex field theory,unified numerical modeling and integrated 3D visualization for mines LI Zhongxue,HAO Jinhui,LI Cuiping,MA Bin Key Laboratory of the Ministry of Education of China for Efficient Mining and Safety of Metal Mines,University of Science and Technology Beijing Beijing 100083.China ABSTRACI A conceptual framework of mine complex fields is proposed from the perspective of numerical modeling and visual simulation for geological and mining engineering systems.In view of the current trends to- wards the advancement of so-called digital mines using computation,information and communication technolo- gies,the significance of developing the unified numerical modeling and integrated 3D visualization systems for mine complex fields composed of geological and mining objects and their attributes is emphasized.Oriented to the needs for developing the techniques and systems of digital mines,key issues in and major methods for numer- ical modeling and 3D visual simulation of mine complex fields are presented.Fitting into the framework and us- ing the proposed methods,a prototype system with a Web-based approach for the numerical modeling and 3D vi- sualization of geological drill holes,ore bodies and underground excavations is built to show the methodologies used in constructing the prototype and the usefulness of a unified numerical modeling and 3D visual simulation approach in addressing the problem of complex fields in underground mines. KEY WORDS mine;complex field;modeling and simulation:visualizationgas outburst factors‚the judgment matrix of each factor was constructed by membership functions‚and the pre￾diction model of coal and gas outburst was established by the fuzzy comprehensive evaluation method．The pre￾diction method was applied in risk type areas to forecast the coal and gas outburst quantitative intensity and the risk grade was divided in Pingdingshan typical mining area．The results show that the hierarchy process and fuzzy comprehensive evaluation method was available for forecasting the coal and gas outburst intensity． KEY WORDS coal and gas outburst；outburst forecast；analytic hierarchy process；fuzzy comprehensive evalu￾ation （上接第654页） Complex field theory‚unified numerical modeling and integrated 3D visualization for mines LI Zhongxue‚HAO Jinhui‚LI Cuiping‚MA Bin Key Laboratory of the Ministry of Education of China for Efficient Mining and Safety of Metal Mines‚University of Science and Technology Beijing‚ Beijing100083‚China ABSTRACT A conceptual framework of mine complex fields is proposed from the perspective of numerical modeling and visual simulation for geological and mining engineering systems．In view of the current trends to￾wards the advancement of so-called digital mines using computation‚information and communication technolo￾gies‚the significance of developing the unified numerical modeling and integrated 3D visualization systems for mine complex fields composed of geological and mining objects and their attributes is emphasized．Oriented to the needs for developing the techniques and systems of digital mines‚key issues in and major methods for numer￾ical modeling and3D visual simulation of mine complex fields are presented．Fitting into the framework and us￾ing the proposed methods‚a prototype system with a Web-based approach for the numerical modeling and3D vi￾sualization of geological drill holes‚ore bodies and underground excavations is built to show the methodologies used in constructing the prototype and the usefulness of a unified numerical modeling and3D visual simulation approach in addressing the problem of complex fields in underground mines． KEY WORDS mine；complex field；modeling and simulation；visualization ·664· 北 京 科 技 大 学 学 报 第29卷