The Active Fault Hazard Evaluation Of Based On Geographic Information System

Geological disasters frequently happen in our country, its not only lead to the loss of property and geological environment is deteriorating, all but a serious threat to the construction of the project. The construction of projects is facing serious threat of geological disasters. Active fault, it is an important factors that trigger earthquakes, cracks and collapses, landslides, cracks and other geological disasters. Therefore, Active fault disasters have become threats to the western region highway projects especially highway network project construction and the safety of the operation Geological diseases, the western traffic building must face because they need to be resolved in one of the key geological problems. How to assess the active fault disaster risk and build GIS-based active fault hazard Zoning system for such areas of land for the construction of a scientific basis for approval. prove scientific basis to the engineering. In this paper, reasonable discussions have been dug into this research domain.Based Haiyuan active fault zone to study the geological information and a detailed analysis of field investigations on the basis of elaborate geological disasters in the region, the main types of formation mechanism and the development characteristics of GIS technology support, using the ArcGIS ArcObjects component technology, Fuzzy mathematical evaluation methods and the level of analysis techniques construct the evaluation model, built a collection, management and analysis of a variety of spatial information software platforms, use of active fault database of all active fault data on the existing geological disasters strength and development potential geological disasters were evaluating trends and projections, Evaluation of geological disasters on the dangerous highway projects, the construction of the basis for decision-making, and minimize the active fault geological disasters on the impact of the construction.Through this paper, the study found the following results of a study to establish the geological hazard basic evaluation system Based on the theory of fuzzy comprehensive evaluation and the level of analysis, research and development of the GIS-based fault-disaster forecasting system evaluation, Implementation of geological disasters fuzzy comprehensive evaluation of professional models and GIS systems integration, and application of the system, Research on active fault zone, the geological disaster risk assessment and prediction, and achieved more satisfactory results. The results of the analysis shows that the study area of geological disasters in the development of the region controlled by the major active faults distribution, topography, rainfall conditions and human factors engineering activities, by identifying more dangerous for regional projects to avoid risks to reduce losses correct basis.