高海拔地区特长高瓦斯隧道施工的通风方案
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摘要
为了制定高海拔地区特长高瓦斯隧道施工的通风方案,以宝鼎2号隧道在建工程为依托,对其进行详细的施工通风方案设计。同时以此隧道为研究对象,计算隧道施工过程中最大需风量,合理划分通风工区,根据计算结果选择通风设备,优化通风设备布置的位置,并对部分参数进行优化,对方案进行动态调整,最终确定合理的施工通风方案。结果表明:通过以上通风方案的设计和现场的控制,既能保证高海拔地区特长高瓦斯隧道施工通风需求,又能节约施工通风成本。
In order to make a ventilation scheme for the construction of high-altitude gas tunnel,a detailed design of the ventilation scheme was carried out for the ongoing project of Baoding No.2 tunnel.Taking this tunnel as a research object,the maximum air volume required during tunnel construction was calculated.According to the conditions of the transverse passage and the site,the ventilation area was reasonably divided.Ventilation equipment was selected based on calculation results to optimize the placement.Some of the parameters were optimized,dynamic adjustments were made,and finally a reasonable construction ventilation scheme was determined.The research results show that through the design of ventilation scheme and on-site control,not only the ventilation requirements of gas tunnel construction in high-altitude area can be ensured,but also the cost is saved.
In order to make a ventilation scheme for the construction of high-altitude gas tunnel,a detailed design of the ventilation scheme was carried out for the ongoing project of Baoding No.2 tunnel.Taking this tunnel as a research object,the maximum air volume required during tunnel construction was calculated.According to the conditions of the transverse passage and the site,the ventilation area was reasonably divided.Ventilation equipment was selected based on calculation results to optimize the placement.Some of the parameters were optimized,dynamic adjustments were made,and finally a reasonable construction ventilation scheme was determined.The research results show that through the design of ventilation scheme and on-site control,not only the ventilation requirements of gas tunnel construction in high-altitude area can be ensured,but also the cost is saved.
引文
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[4]武雪都.鹧鸪山高原隧道施工通风技术[J].西部探矿工程,2004(5):105-107.
[5]晁庚奇.青藏高原高寒地区长大隧道通风技术[J].铁道标准设计,2007(1):74-76.
[6]魏群.浅谈长大硬岩公路隧道施工通风的若干问题[J].四川建筑,2017(4):101-102.
[7]韩直.公路隧道通风设计的理念与方法[J].地下空间与工程学报,2005,25(3):464-466.
[8]夏永旭,王永东,赵峰.秦岭终南山公路隧道通风方案探讨[J].长安大学学报:自然科学版,2002,22(5):48-50.
[9]陈建勋,乔怀玉,尹增廉.公路隧道通风竖井施工方法[J].筑路机械与施工机械化,2006,23(5):5-7.
[10]夏永旭,张进县,王永东,等.雁门关公路隧道通风方案[J].长安大学学报:自然科学版,2003,23(4):46-50.
[11]夏永旭,石平.公路隧道通风空气交叉污染三维数值分析[J].长安大学学报:自然科学版,2006,26(6):44-47.
[12]仇玉良,李宁军,谢永利.喷射混凝土衬砌隧道通风阻力系数测试研究[J].中国公路学报,2005,18(1):81-84.
[13]蔡珊瑜.特长隧道通风系统选型的探讨[J].地下空间与工程学报,2004,24(1):75-79.
[14]赵钰.特大断面长大高瓦斯隧道通风技术研究[J].铁道建筑,2007(12):39-41.
[15]韩星,张翛,张旭.公路隧道通风需风量计算中车密度系数的讨论[J].重庆交通大学学报:自然科学版,2008,27(2):217-220.
[16]李峰.公路隧道通风弯曲风道及火灾排烟风口优化研究[D].西安:长安大学,2009.
[17]李宏晋.特长隧道通风方案及其优化[J].铁道建筑技术,2012(1):103-105.