特长公路隧道独头掘进施工通风设计与数值模拟分析

Ventilation Technology and Numerical Simulation for the Construction of Extra-long Expressway Tunnel Blind Heading without Track Transportation

摘要:

介绍了国内最长独头掘进公路隧道——麦积山隧道施工中的通风布置方式及通风设备，按规范方法对其风量的各相关参数进行了计算，基于有限元流体力学软件FLUENT对施工通风方案进行了数值模拟验证。阐述了通风过程中遇到的一些问题及解决方法，以取得良好的隧道通风效果，为施工创造了舒适、高效的工作环境。

Abstract:

The ventilation layout and ventilation equipment of the longest expressway tunnel (Maijishan tunnel)construction with blind heading interiorly were introduced, the relevant parameters were calculated according to the standard methods, the verification of numerical simulation for the construction ventilation scheme was processed based on the finite element fluid dynamics software FLUENT. Some problems encountered during the ventilation process and the solutions were described to obtain a good tunnel ventilation effect and create a comfortable and efficient work environment.