Matter-elements model and application for prediction of coal and gas outburst

• 来源期刊: 煤炭学报（英文版）
• 年，卷（期）: 2009,（3）
• 页码范围: 273-277
• 页数: 5页
• 语种: 英文
• DOI: 10.1007s12404-009-0311-6

摘要

The theory and method of extenics were applied to establish classical field mat-ter elements and segment field matter elements for coal and gas outburst. A mat-ter-element model for prediction was established based on five matter-elements, which in-cluded gas pressure, types of coal damage, coal rigidity, initial speed of methane diffusion and in-situ stress. Each index weight was given fairly and quickly through the improved analytic hierarchy process, which need not carry on consistency checks, so accuracy of assessment can be improved.