| The construction and operation of urban underground engineering not only develop underground space, but also affect the underground water environment and pose pollution risks.In order to explore the theoretical methods of the risk assessment of groundwater environment affected typical underground engineering,this article takes typical underground engineering in Zhengzhou City as an example, conducts research on groundwater level and quality. This article uses hydrogeological and environmental geological analysis methods to analyze the impact of underground engineering on groundwater environment, and constructs an evaluation system consisting of seven indicators through the Analytic Hierarchy Process.These seven indicators include the amplitude of groundwater level caused by engineering construction, the hydraulic slope of groundwater, the degree of damage to shallow aquifers, the spatial relationship between underground engineering and aquifers, pollutant content, the total load level of pollution sources, and sensitive receptors.During the research process, four typical underground engineering projects were selected as the research objects to apply this evaluation system, including a certain underground engineering complex (DXGC1), a certain underground utility tunnel (DXGC2), a certain subway station (DXGC3), and a certain underground sewage treatment plant (DXGC4).The establishment and verification of the evaluation system summarize the anti pollution links that should be improved in the construction and operation process of typical underground engineering, providing management tools and scientific basis for the protection of urban groundwater quality. |
