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针对复杂矿井通风网络解算问题,基于MATLAB语言及其图形处理平台,提出用真实3D矿井巷道连结关系(3D风网图)代替复杂网络图进行解算。该方案只需将实际矿井巷道真实描画出来,由计算机程序自动从真实巷道中提取通风网络的拓扑关系,并自动添加大气、通风机风硐、掘进巷道风筒等辅助分支,将同属性巷道分支合并,缩减通风网络图的规模,得到计算所需的内部通风网络图。3D风网图是将矿井通风网络看作一个力学模型,直接按基本回路计算自然风压。从本质上说,3D风网图表达的是“具象”的通风网络图,它超越了传统平面网络图的技术层面。应用该通风仿真程序,能有效解决矿井通风信息管理、三维矿井通风立体图的自动生成、矿井通风网络自动解算、风网参数的自动标注等问题,在铁法矿区大兴煤矿的应用结果验证了其可靠性。
Aiming at solving the problem of complex mine ventilation network, based on the MATLAB language and its graphics processing platform, a real 3D mine roadway connection relationship (3D wind network diagram) is proposed to solve complex network diagram. The program simply draws the actual mine roadway, and automatically extracts the topological relationship of the ventilation network from the real roadway by a computer program and automatically adds auxiliary branches such as the air, the ventilator wind tunnel and the tunneling tunnel duct, and branches the same attribute roadway Merger, reduce the size of the ventilation network diagram, get the required internal ventilation network diagram. 3D wind network diagram is mine ventilation network as a mechanical model, calculated directly by the basic circuit of natural wind pressure. In essence, the 3D wind network diagram is a “figurative ” ventilation network diagram, which goes beyond the technical aspects of the traditional flat network diagram. The application of the ventilation simulation program can effectively solve such problems as mine ventilation information management, automatic generation of three-dimensional mine ventilation draft, automatic mine ventilation network calculation and automatic annotation of wind network parameters. The application results of Daxing Coal Mine in Tiefa Mining Area verify that reliability.