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| 高瓦斯隧道施工通风处理数值模拟分析 | |
| 引用本文： | 康小兵,丁睿,许模,赵帅军.高瓦斯隧道施工通风处理数值模拟分析[J].成都理工大学学报(自然科学版),2012,39(3):311-316. |
| 作者姓名： | 康小兵 丁睿 许模 赵帅军 |
| 作者单位： | 1. 地质灾害防治与地质环境保护国家重点实验室(成都理工大学),成都,610059 2. 地质灾害防治与地质环境保护国家重点实验室(成都理工大学),成都610059;中铁二局股份有限公司,成都610032 3. 湖南省地质环境监测总站,长沙,410007 |
| 基金项目： | 地质灾害防治与地质环境保护国家重点实验室人才培养基金资助项目 |
| 摘 要： | 采用计算流体动力学软件(简称CFD软件)对紫坪铺高瓦斯隧道施工通风处理效果进行模拟,从瓦斯浓度降低方面来看,1m/s风速能满足通风要求,0.5m/s风速基本能满足通风要求,0.2m/s风速不能满足通风要求。通过现场风速与瓦斯浓度的监测,在掌子面风速为0.5～0.6m/s时,隧道内瓦斯浓度在允许浓度范围之内。数值模拟方法与实际情况相符。 |
| 关 键 词： | 高瓦斯隧道 施工通风 瓦斯浓度 数值模拟 |
Numerical simulation for the ventilation in the construction of high gas tunnel |
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| KANG Xiao-bing , DING Rui , XU Mo , ZHAO Shuai-jun.Numerical simulation for the ventilation in the construction of high gas tunnel[J].Journal of Chengdu University of Technology: Sci & Technol Ed,2012,39(3):311-316. | |
| Authors: | KANG Xiao-bing DING Rui XU Mo ZHAO Shuai-jun |
| Institution: | 1.State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology,Chengdu 610059,China; 2.China Railway Erju Co.Ltd.,Chengdu 610032,China; 3.General Geological Environmental Monitoring Station of Hunan Province, Changsha 410007,China |
| Abstract: | The ventilation system is an important measure to eliminate gas disasters,the authors take the computational fluid dynamics software to simulate effective the ventilation treatment of the Zipingpu high gas tunnel.The simulation results show that from the view of reducing the gas concentration,1 m/s wind speed can meet the ventilation requirements,0.5 m/s wind speed can basically meet the ventilation requirements,and 0.2 m/s wind speed can not meet the ventilation requirements.Then using the numerical simulation method to determine the best method of ventilation,people can calculate a reasonable option on the ventilation,air volume and select the device. |
| Keywords: | high gas tunnel construction ventilation gas concentration numerical simulation |
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