因素空间下影响煤与瓦斯突出的优势因素提取方法  

Extraction methods of advantages factors behind coal and gas outburst in factor space

作　　者：刘海涛 Liu Haitao(Graduate School, Heilongjiang University of Science & Technology, Harbin 150022, China)

机构地区：[1]黑龙江科技大学研究生学院

出　　处：《黑龙江科技大学学报》2019年第3期267-271,共5页Journal of Heilongjiang University of Science And Technology

基　　金：国家自然科学基金项目(51474099)

摘　　要：为提高煤与瓦斯突出预测的准确度,根据因素空间理论提出影响煤与瓦斯突出的优势因素提取方法。该方法采用决定度描述条件因素对结果因素影响的强弱、大小和排序,提取最大决定度对应的优势因素,并将其归入优势因素集,再从条件因素的论域中去除已选优势因素的决定域,逐渐缩小论域,直至论域为空。实测结果表明,影响煤与瓦斯突出的优势因素为煤体破坏类型、瓦斯压力、煤的坚固系数、煤层瓦斯含量和瓦斯放散初速度。该方法将典型矿井的实测数据作为样本,计算结果符合实际情况,且算法简单,减少人为干扰,为煤与瓦斯突出优势影响因素分析提供了借鉴。This paper propose a novel method for extracting the advantage factors affecting coal and gas outburst according to the factor space theory, a method able to improve prediction accuracy of coal and gas outburst. The method works by describing the strength, size and order of the influence of conditional factors on the outcome factors using the degree of determinism;extracting the advantage factors corresponding to the maximum deterministic degree and putting them into the set of advantage factors;and then removing the decision domain of the selected advantage factors from the domain of conditional factors and gradually narrowing the domain until the domain is empty. The results show that the advantage factors affecting coal and gas outburst consist of failure type of coal body, gas pressure, solidity coefficient of coal, gas content of coal seams and initial velocity of gas release. The method based on s the measured data of typical mine as a sample could provide the calculation result in line with the actual situation, and what is more, the method capable of performing with a simple algorithm and reducing human disturbance could serve as a reference for analyzing the advantage factors affecting coal and gas outburst.

关 键 词：煤与瓦斯突出 优势因素 因素空间 决定度 

分 类 号：TD712.5[矿业工程—矿井通风与安全]