矿井通风网络系统复杂性特征及其抗毁性研究

针对通风网络拓扑结构对通风系统安全可靠性的影响,利用复杂网络理论构建矿井通风系统有向网络模型,研究通风网络的基本拓扑性质。针对兴隆庄煤矿,通风网络节点的入度和出度都呈现幂律分布,网络呈现无标度网络特性。在此基础上将强连通分量、弱连通分量和网络效率作为度量指标分析网络抗毁性能,以攻击节点和边的方式进行随机攻击和选择性攻击,结果表明有向通风网络在随机攻击下具有较强的鲁棒性,但对选择性攻击十分脆弱。

Complexity Characteristics and Invulnerability of Mine Ventilation Network System

In order to analyze the safety and reliability of the ventilation system from the perspective of network topology, complex network theory was applied to the mine ventilation system. A mine ventilation system directed network topology model was built, based on the complexity and network structure of mine ventilation system. For Xinglongzhuang Coal Mine, the node-degree of mine ventilation system network showed a power-law distribution, showing the characteristics of scale-free network. The two attack strategies of mine ventilation system network random attack and edge-degree and node-degree selective attack were formulated, and strongly connected component, weakly connected component and network efficiency were used as the invulnerability performance index. Results showed that the mine ventilation system network had strong robustness under random attack and was very vulnerable to edge-degree and node-degree selective attack.