Influence of Tunnel Water on Ecological Risk of Production Wastewater During Construction of Jiuzhi-Barkam Expressway
In recent years,highway construction has been developing,but the environmental problems that follow cannot be ignored.Among them,the construction of wastewater treatment is also a key part of environmental protection.In order to reduce the pollution caused by highway construction,by taking the construction of Jiuzhi-Barkam Expressway as an example and the wastewater produced from the construction as a research object,the effects of wastewater characteristics and effluent volume on ecologically sensitive regions and sensitive water system were studied in this paper.The risk of ecological impact of wastewater during construction was assessed as well.The results showed that in the ecological risk assessment of Jiuzhi-Barkam Expressway,the risk source index and the risk acceptor index determined the overall evaluation result at the same time.The water gushing of tunnel had a great influence on the ecological risk of wastewater produced from the construction of Jiuzhi-Barkam Expressway.It was an important measure to get round risky areas and sensitive water systems and control the wastewater yield to reduce the impact on the environment during the construction of the Jiuzhi-Barkam Expressway.
Expresswaygushing water in tunnelconstruction wastewaterecological riskenvironmental impact