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出渣是控制开挖进度的重要工序,如何配备最适宜的自卸汽车台数,使装载机的利用率最高、岔口前排队概率最小,保证出渣运输工作顺利进行,同时满足不同道路等级的行车密度要求,是出渣过程中需要考虑的问题.结合溪洛渡工程,将地下厂房洞室群多工作面、多工种交叉作业情况下的出渣问题抽象为有限源多级随机服务系统,重点介绍了应用Petri网理论建立出渣系统模拟模型和模型实现的过程,并采用三阶段法的仿真策略,对水电站地下洞室群出渣系统进行仿真研究,取得了与实际情况相近的仿真模拟成果,为机械方案的优选提供了决策支持.
Slagging is an important process to control the progress of excavation. How to equip the optimal number of dump trucks to maximize the utilization rate of the loader and minimize the probability of queuing in the front of the fork to ensure the smooth operation of the slag transportation and to meet the traffic demands of different road levels Density requirement is a problem that needs to be considered in the process of slag removal.Combining with the Xiluodu project, the problem of slag discharge in multi-faceted caverns with multiple caverns in underground powerhouses and cross-working with multiple workers is abstracted as a limited source multi-level random service system with emphasis on Petri net theory is applied to establish the simulation model of slag system and the process of model realization. The simulation method of three-phase method is used to simulate the slag system of underground caverns in hydropower station. The simulation results are obtained as follows: The optimization of mechanical solutions provides decision support.