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暖通空调杂志社>期刊目次>2021年>第3期

汕头苏埃隧道运营通风系统设计

Operation ventilation system design for Shantou Suai Tunnel

梁艳[1] 魏志华[1] 唐春华[2]
[1]中铁第六勘察设计院集团有限公司 [2]深圳市市政设计研究院

摘要:

汕头苏埃隧道为特长水下盾构隧道,中部为盾构段,两端为明挖暗埋结构。充分利用盾构的圆形结构特点,对4种隧道通风方案进行了比选,确定明挖段设置射流风机+排出式通风井+盾构段设置土建排烟风道方案为推荐通风方案。结合方案的风塔位置、洞口污染物指标介绍了运营通风系统设计,指出运营通风方案与行车速度有直接关系,不能简单采用风塔+洞口排风模式。运营通风方案既要满足洞口污染物不超标,又要合理配置风机等设备。

关键词:水下盾构隧道,通风标准,尾气排放标准,组合式通风,需风量,运营通风

Abstract:

The Shantou Suai Tunnel is an extra-long underwater shield tunnel, with a shield section in the middle and open-cut and burial structures at both ends. Making full use of the circular structure characteristics of the shield, compares and selects four tunnel ventilation schemes, determines the recommended ventilation scheme, which uses the open-cut section with jet fans, the expulsion ventilation shaft, and the shield section with civil smoke exhaust ducts. Combining the location of the wind tower and the pollutant indicators at the entrance, presents the operation ventilation system design. Points out that the operation ventilation scheme is directly related to the driving speed, and the wind tower and the tunnel exhaust mode cannot be simply adopted. The operation ventilation scheme should not only meet the fact that the pollutants at the entrance do not exceed the standard, but also achieve the reasonable allocation of fans and other equipment.

Keywords:underwatershieldtunnel,ventilationstandard,exhaustemissionstandard,compositeventilation,requiredairrate,operationventilation

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