Comprehensive Assessment Of Ecological Environmental Impact On A Railway Tunnel In Southwestern Yunnan

The comprehensive evaluation of the ecological impact of Long tunnel railways is based on the understanding and assessment of the current regional ecological environment and the multiple factors identified through the project, which are studied and analyzed both in terms of quantity and quanlity, thus forecasting potential impacts of a project on the ecological environment and providing corresponding plans for the improvement and restoration of the ecological landscape to minimize the project's negative impacts on the environment and prevent environmental degradation, so that the tunnel construction and the coordinated development of the environmental protection can be achieved.This article refers to the theory of ecological environmental impact assessment and studies the impacts on the ecological environment caused by railway tunnels throughout its life cycle. Impact on the ecological environment comprehensive evaluation methods are introduced, in particular, in particular, by employing the method of the fuzzy AHP, impact of the railway tunnel on the ecological environment can be evaulated and correspondingly a comprehensive evaluation index can be established.With a railway tunnel in southwestern Yunnan as an example, the ecological environment impact is assessed. First, a hierarchical model structure is established, identifying evaluation index at all levels. Establish the same level of evaluation to determine the weight matrix, the combination index calculated by weight. Evaluation of the establishment of the lowest membership function to determine the appropriate degree of membership, the dimensionless obtained membership. At the end A conclusion of the comprehensive evaluation value is drawn by using the software to implify the calculation.