Extension Engineering Method Eagle Rui Highway To Disaster Risk Assessment

At present the the commonly used method of highway geologic hazard assessment are the approach of gray system theory, approach of geographic information systems, informational method, analytic hierarchy process, fuzzy mathematics, neural network methods, but the practical application of these methods in the process is not very satisfied. Such as gray system theory approach, due to lacking of clear characteristics exists ambiguity; geographic information system's application of powerful spatial analysis capabilities due to some limitations, there are still poor in operability and applicability. The informational method, AHP and fuzzy mathematics method, on distributing the weight or determining the degree there are Artificial factor existing, lacking objectivity and scientific nature;neural network method can overcome the human factors involved, But the close relationship between training process and the length of time to the knowledge machine and the compatibility between the parameters in evaluation system. Therefore,there is no fitness due to the high Selection to evaluational index system. Extension engineering method which based on Extension Theory combineing with various areas of expertise can solve the problem that the original method does not or propose a better approach than the original solution.This text made the extenics theory and risk assessment of geological disasters in highway and set up the Geological Hazard Evaluational Extenics model based on the matter-element theory, extension set theory and correlation functions of computing. Distributional density, scale of historical disaster, distribution density of faults, peak acceleration of ground motion,the nature and structure of rock and soil, terrainal elevation difference, slope, the average annual rainfall in years, development of river valley, forest (vegetation) cover, the activity level of karst collapse and the impact of human activities,the 12 geological disasters risk factors are decided in mastering the geotechnical engineering geological characteristics and types of geological disasters in study area . the assessment was divided into 61 units according to the risk grading standards for the evaluation index which owes large, medium and small three division in risk of geological disasters.This text realized the computer programs in Extenics evaluation based on establishment of Extenics, using javascript + html language developed extenics evaluation process, so that calculations are more simple, accurate, fast,geting quantitative evaluation and drawing on the study area zoning and construction are useful in the risk of zoning plans.In the establishment of Extenics Based on the model, this paper realized Extenics evaluation of computer programs, using javascript + html language developed extenics evaluation process, so that assessment unit calculations are more simple, accurate, fast, quantitative evaluation has been results and drawing on the study area zoning and construction are useful in the risk of zoning plans.Finally,I got the summary and discussion of Extenics application in risk assessment of geological disasters:1, This text applied Extenics to highway assessment of geological hazards in Yingtan to Ruijin and established risk assessment of geological hazards extenics model, carring out suitability evaluation in study area. Results of evaluation were basically consistent with engineering geological analysis and evaluational methods in this project which has been implemented and achieved good results, just slightly different. We can see Extenics evaluation method is a fundamental feasible on the highway Geological Hazard Assessment.2, In this text, javascript + html was used to preparated extenics evaluation procedures and applied in construction land suitability evaluation in the study, which simplify the calculation process.3, Extenics evaluation method, not only can select unrestricted type and quantity of the evaluation parameters from multi-angle, multi-factor starting, having applied to the specific characteristics of different regions, but also can use geological survey results to maximize rationally. Overcoming the the drawbacks of the previous evaluation to the fixed factors, so that is a more realistic assessment. However, due to the lack of my basic information, relevant research results and research experience , parameters for the selection of indicators for the relationship will be further studied in the instances.4, This text expand the application of the theory in extension fields when the combing of Extenics methods and risk assessment of geological disasters highway, but also added a new method for risk assessment of geological disasters.5. Due to a number of factors and collection of data limitations,there are some rough in selecting five kilometers when I used the partition extension engineering problems in evaluation,there is no accurate evaluation in the study, in future research the evaluation unit length need to be further refined in order to obtain a more accurate evaluation results forpractical application.6.There is some quqntifical geological scourge fatelness quest in the text, thesie Extenics evaluation method is one of the methods in realizing quqntifical geological scourge fatelness quest.