基于偏序集的采空区煤自燃可能性评价模型

为了解决采空区煤自燃可能性评价方法中的赋权争议问题，基于偏序集理论，提出了偏序集评价模型。阐明评价指标并确定其等级划分准则，运用偏序集评价模型得到Hasse图，通过Hasse图展现的层集信息判别采空区煤自燃的危险程度。利用该模型对某煤矿17个煤样的自燃情况进行了判别，评价结果准确合理。研究结果表明:该模型避免了以往研究中的赋权争议问题，克服了样本量不足致使模型无法应用的问题，其评价结果置信度高。

Evaluation model on possibility of coal spontaneous combustion in goaf based on partially ordered set

In order to solve the problem of weighting dispute in the evaluation method on the possibility of coal spontaneous combustion in goaf, an evaluation model with partial ordered set was proposed based on the theory of partial ordered set. The evaluation indexes and the grade division criteria were clarified, then the Hasse diagram was obtained by using the evaluation model with partial ordered set, and the risk level of coal spontaneous combustion in goaf was judged through the layer set information displayed in the Hasse diagram. The spontaneous combustion situation of 17 coal samples in a coal mine were judged by using the model, and the evaluation results were accurate and reasonable. It showed that the model avoided the weighting dispute in the previous research, overcame the problem that the model can’t be applied due to the insufficient sample amount, and the evaluation results had a high confidence.