Risk Assessment Of Highway Slope And Its Engineering Application Based On FAHP

At present,certain progress has been made in the research of slope safety evaluation methods at domestic and international and many slope risk assessment methods have been proposed.But at the same time,a lot of engineering practice shows that there are complex and fuzzy characteristics in slope engineering construction.Using the same evaluation system to evaluate the slopes of different engineering areas is often difficult to achieve the desired results.Base on previous research results,on-site survey report,expert advice,theoretical analysis,on-site investigation,and consulting expert advice,the research method is adopted in this thesis.By using these research methods,highway slope risk assessment system suitable for the regional characteristics of the project has been established.a slope risk assessment system under four failure modes is established.Provide a basis for the safe construction and operation of slopes.The main research work and results of this thesis are as follows:(1)By summarizing the slope documents of the expressway and on-site investigations,the characteristics and main failure modes of the slopes along the expressway are summarized.(2)Based on the summary of the slope characteristics and failure modes along the line,the slope risk influencing factor set in the highway slope engineering area is determined by this thesis;According to the current quantitative research results of slope risk assessment indicators at domestic and international,the concentrated evaluation index of the expressway slope risk assessment factors has been quantified;the risk assessment system of the expressway slope is established by using the FAHP theory in this thesis.(3)By using the risk evaluation assessment proposed in this thesis,the typical slope along the expressway is analyzed and evaluated as a case.According to the risk assessment results,the slope monitoring plan for this typical slope is proposed.The feasibility of the highway slope risk assessment system proposed in this thesis has been verified by applying this risk assessment method to engineering case.