文本挖掘与复杂网络耦合视角下的煤矿事故关键因素识别

    Identification of key factors of coal mine accidents from the perspective of coupling text mining with complex networks

    • 摘要: 煤炭行业因其高危作业特性呈现较为显著的事故易发倾向。基于工人职业安全与健康保障的核心诉求,亟须借助智能化技术手段对煤矿安全生产风险隐患成因进行精准识别。首先,对煤矿事故调查报告等相关文本数据进行隐患信息特征提取和降维,采用文本挖掘与复杂网络耦合的研究方法,从广泛非结构化煤矿事故调查报告中提取189个安全事故关键特征,并采用凝聚式层次聚类方法提取9维特征群;其次,运用相关性检验确定事故致因特征间的关联关系并计算事故致因特征关联强度,构建安全事故致因网络;最后,结合复杂网络模型分析关键隐患节点,并提出一种基于数据驱动的安全事故预警策略,为更加高效地进行安全隐患排查治理、提升安全生产水平提供参考。结果表明,关键事故致因包括“工作面”、“掘进工作面”、“采空区”、“钢丝绳”、“输送机”等因素;“工作面”在煤矿安全事故隐患特征网络中处于核心地位,且与“采空区”、“采煤机”二者关联程度很高,在事故演化过程中往往伴随出现;事故致因网络内节点间联系紧密程度平均水平较高,存在广泛的双向关联关系。文本发掘和复杂网络耦合模型可有效解析煤矿事故致因链式传播路径,数据驱动预警策略能够提升隐患排查效率,为煤矿安全风险预控管理提供帮助。

       

      Abstract: Coal industry exhibits a notably high tendency for accident occurrences due to the inherently high-risk nature of its operations. To address the core demand of safeguarding workers’ occupational safety and health, there is an urgent need to leverage intelligent technologies for the accurate identification of the causes of potential safety risks in coal mine production. First, feature extraction and dimensionality reduction of hidden danger information were carried out on relevant textual data such as coal mine accident investigation reports. By adopting a coupled research method combining text mining and complex networks, 189 key features of safety accidents were extracted from a wide range of unstructured coal mine accident investigation reports, and 9-dimensional feature clusters were identified using the agglomerative hierarchical clustering method. Second, correlation tests were applied to determine the correlation between accident-causing features and calculate the correlation intensity among them, thus constructing a safety accident causation network. Finally, key hidden danger nodes were analyzed by combining the complex network model, and a data-driven early-warning strategy for safety accidents was proposed, which provides a reference for more efficient hidden danger detection and remediation as well as for improving the level of safe production. The results indicate that the key accident causes include factors such as “working face”, “driving face”, “goaf”, “steel wire rope”, and “conveyor”. The “working face” holds a central position in the characteristic network of coal mine safety accident hazards and exhibits a high degree of correlation with both “goaf” and “shearer”. These elements frequently co-occur during the evolution of accidents. The coupled model of text mining and complex networks can effectively analyze the chain propagation path of coal mine accident causes, and the data-driven early-warning strategy can improve the efficiency of hidden danger detection, provide assistance for the preventive control and management of coal mine safety risks.

       

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