隧道施工废水对水环境的影响分析及应对措施

Analysis of the influence of tunnel construction waste water on water environment and countermeasures

文章根据不同隧道施工废水的来源、水量及水质的特性,分别从理化、生态、景观等方面详细分析了隧道施工废水对水环境的影响,确定了主要污染物质为油类和悬浮物(SS),其对水环境的物理化学性质方面的影响较大;并提出了加强施工机械车辆管理以减少排污量、在隧道进出口处设置沉淀池、必要时采取隔油沉淀气浮处理等相应对策。

In light of the source, quantity and property of tunnel construction waste water, the paper analyzed the influence of the waste water on water environment in terms of physical chemistry, ecology and landscape. It indicates that the main contaminations are oils and suspended substances （SS） which affect the physical and chemical property of water environment, and suggests to improve the management of construction machinery and vehicles to reduce contaminant products, to install precipitating tanks at the entrance and exit of the tunnel, and if necessary, to adopt separation, deposition and gas- buoy treatment.