基于三维数值模拟的长大隧洞施工通风影响因素研究  

A Study of Factors Affecting theVentilation of Long and Large Tunnels Based on 3D Numerical Simulation

作　　者：何坤[1] 叶敏敏[2] 李艳玲[1,3] 郑园媛[1] 

机构地区：[1]四川大学水利水电学院,成都610065 [2]国际小水电中心,杭州310002 [3]四川大学水力学与山区河流开发保护国家重点实验室,成都610065

出　　处：《中国农村水利水电》2012年第2期106-109,共4页China Rural Water and Hydropower

摘　　要：传统通风设计主要依靠经验,不注重影响通风的实际因素,常常给地下工程施工带来不便。构建长大隧洞三维模型,采用基于流体力学理论的三维数值模拟,对比分析隧洞掘进长度、通风方案、断面尺寸、洞壁粗糙高度等因素对通风流场的影响,为优化地下施工通风设计方案提供理论依据。Traditional ventilation design mainly relies on experience.It does not pay attention to the actual factors that affect ventilation,thus bringing inconvenience to the underground project construction.A three-dimensional model of long and large tunnels is built based on three-dimensional numerical simulation of fluid dynamics theory.A comparative analysis is made of the length of tunnel excavation,ventilation solutions,section size,wall roughness height and other factors on the impact through the romantic field so as to optimize the design of underground construction ventilation to provide theoretical basis.

关 键 词：长大隧洞 三维数值模拟 通风 影响因素 

分 类 号：TV554.15[水利工程—水利水电工程]