Urban Road Slope Risk Analysis And Evaluation

With the rapid development of the economic and the progress of the society, the city construction has gotten great and swift improvement. Nevertheless, it brings a great deal of geological hazard unavoidably, especially in the mountain and hilly area. With the specificity of the city construction, deep-cut cutting was usually made in these cities. In case the slope failures in these cities happen, it may causes great casualties and economic loss. Therefore, seeking the effective risk analysis theory and method to made analysis and assessment to the slope becomes the key to appraise and control and alleviate the hazard effectively. This paper made a beneficial discussion toward this field. The main achievements the author has gotten are as following:Firstly, the author introduces the essential theory of the risk analysis, such as risk identification, risk assessment and risk estimation.Secondly, the author introduce all the methods of the risk analysis, and the methods be divided to qualitative analysis methods, quantitative analysis methods, qualitative and quantitative analysis methods and all the improvement methods. The virtues, shortcomings and the applications have been tabulated.Thirdly, the choice fundamental of the risk analysis methods on the urban road slopes was gotten. The methods on the risk analysis of the urban road slopes are: fuzzy method and AHP method and they are merge method.Fourthly, the assessment of slope failure system of the urban road slopes are founded, the choice methods about the assessment of slopes failure, the range and the magnitude of the slope failure were made. The grade of the assessment of slope failure was also made.Fifthly, according to the characteristic of the slopes of urban road, the construction of the vulnerability assessment was studied. The vulnerability assessment system of the urban road slopes are founded, the choice methods about the slope failure were made. The grade of the vulnerability assessment of slope failure was also made.Sixthly, according to the results of the assessment of slope failure and the vulnerability assessment, the risk assessment of the slope of the urban road was studied. The permissible criteria of urban road slope were also discussed.Seventhly, the disposal methods of the urban road slope were put forward. The author also put forward the system of judging method about the necessity to the calamity of the urban road slope.Finally, according to the risk theory and the risk analysis method, and with the system of the assessment of slope failure and the vulnerability assessment, the risk analysis and the risk assessment of the west road of the KAIYUAN ROAD was made.