Research On Decision Of Pavement Anti-sliding Disposal Of Long Expressway Tunnels

The frequent occurrence of tunnel traffic accidents is an important issue which cannot be ignored in operation safety,which directly endangers the safety of public life and property.The anti-skid performance of the cement concrete pavement in the tunnel has been reduced rapidly,and the lack of anti-skid ability has brought great danger to the operation safety.Road maintenance is the basic work and important means to ensure operation safety.The research of tunnel pavement anti-skid disposal decision is proved to be effective in realizing the plan optimization,changing passive maintenance into active maintenance,ensuring maintenance effect and reducing tunnel traffic accident rate.In this paper,according to the actual demand of anti-skid performance improvement of expressway tunnel pavement,the paper focuses on the decision-making method of anti-skid disposal decision-making of pavement of long tunnel in expressway,and puts forward two key points of decision making: first,the selection scheme library is selected rationally;two is the multi-level fuzzy decision model established by analytic hierarchy process and fuzzy mathematics to realize the optimization of the scheme.Based on the analysis of the condition of the tunnel and the characteristics of anti-skid technology,the treatment measures,auxiliary measures and anti-sliding technology of the original road surface diseases were analyzed,and the alternative plan library was determined.Through the target decompose step by step,and the technical,economic,security,environmental protection and other quantitative indicators and qualitative indicators by standardized,determined the multi-level fuzzy decision model,implementation scheme of single layer under the overall goal of total sorts,implementation scheme optimization.Based on multi-level fuzzy decision model,put forward the scheme of tunnel pavement anti-sliding decision-making methods and alternative library,technical,economic,security,environmental protection class key decision-making indicators,hong-yan bay in da-shan expressway tunnel project demonstration of successful application,solved the problem of the tunnel pavement anti-sliding ability is insufficient,the tunnel with the method of this paper puts forward that in October 2016,the construction,use and testing well.Finally,the paper also grew up in expressway tunnel pavement anti-skid disposal decision-making of expressway technical condition evaluation and maintenance requirements are analyzed,and put forward the optimization advice,make the evaluation results and maintenance requirements analysis can better service for maintenance engineering plan decision-making,grew up expressway tunnel pavement anti-sliding treatment of scientific decision,change the traditional maintenance decision model,realize scientific decision,change passive maintenance to active maintenance.