基于未确知测度理论的定向铅钻遇采空区判识方法研究

Research on identification method of drilling goaf using directional drilling technology based on uncertainty measurement theory

老空水害事故是矿井安全生产的重要隐患之一。为确保矿井防治水安全,对老空区的探查与识别必不可少。文章立足于定向钻钻探新技术,根据定向钻观测内容及钻遇采空区的表现特征,确定了钻遇采空区的判识依据,基于未确知测度理论,结合实际案例,研究建立了钻遇采空区综合判识方法。研究结果表明,采用基于未确知测度理论的钻遇采空区判识方法在定向钻钻探过程中能够准确地识别采空区。研究成果对于指导定向钻判识采空区、完善定向钻探查老空区(包括老巷)探查技术体系具有重要参考价值。

The old empty water hazard accident is one of the important hidden dangers of mine safety production.In order to ensure the safety of mine water prevention and control,the exploration and identification of old empty areas are essential.According to the observation content of directional drilling and the performance characteristics of drilling encounters in mined-out areas,the basis for identification of drilling encounters in mined-out areas is determined based on the new drilling technology of directional drilling.Based on the unascertained measurement theory,combined with actual cases,a comprehensive identification method for drilling encountered mined-out areas is established.The research results show that the goaf identification method based on unascertained measurement theory can accurately identify the goaf during directional drilling.The research results have important reference value for guiding directional drilling to identify goafs and perfecting the directional drilling exploration technology system for old empty areas(including old lanes).