【摘要】 通风散烟是大型地下洞室群施工中的重要环节,传统的施工通风设计没有考虑通风系统的时变性与动态性。为了获得地下洞室群施工中不同阶段的通风系统状态,需要对施工通风问题进行动态分析研究。基于系统仿真技术,本文建立了施工通风仿真模型,通过动态仿真计算可获得施工期内风量的动态变化曲线和通风影响因素的权重,为通风设备的选择提供了决策依据。工程实例分析验证了理论方法的可行性。更多还原

【Abstract】 In order to study conditions of ventilation system during different construction stages of underground structure complexes dynamic analysis of construction ventilation is needed.A construction ventilation simulation model is presented in this paper,based on system simulation technique.Through the dynamic simulation calculation,the dynamic ventilation quantity curves and the weights of all influencing factors can be obtained.This provides basis for decisionmaking of ventilation equipment selection.Feasibility of this theoretical method has been verified by a practical engineering example.更多还原