某水电站坝址区环境水化学特征及对工程的影响

Chemical Feature of Environmental Water and Its Influence to the Project in a Dam Area of Reservoir

环境水对混凝土(结构)、钢筋混凝土结构中钢筋及钢结构腐蚀性评价是工程勘察中的一项内容,因此,勘察时采取环境水水样进行水化学成份测试,并按规定要求进行评价是十分必要的。以某水电站坝址区为例,通过所采取水样水化学成份测试成果,分析了其环境水与工程相关的化学特征,按有关标准要求进行了相应的腐蚀性评价,判定地表水和地下水对混凝土(结构)等具腐蚀性,指出了对工程的影响程度,为工程采取防护措施提供了依据,并提出了合适的防护措施建议。

It is a content of engineering survey that environmental water evaluating the corrosiveness of reinforcing bar and steel structure in concrete and reinforced concrete. Therefore, it is necessary for taking the sample of environmental water to do chemical analysis of water and evaluating them during engineering survey. Taking a hydropower station dam area for example, this paper analyzes the chemical feature of environmental water and judges surface and ground water have corrosiveness to the concrete after researching the result of the water sample. It is also provide basis for protecting measure and give protecting suggestion to the project.