Study On Pavement Energy Consumption And Environmental Emission Based On Set Pair Analysis-Variable Fuzzy Set Model

With the rapid development of the national economy,the asphalt pavement is widely applied,but environmental problems of energy produced in the whole life cycle of high and large waste emissions do not meet China’s current sustainable development strategy has attracted wide attention at home and abroad.Therefore,in the whole life cycle of asphalt pavement,the impact of environmental factors should be taken into account in the pursuit of economic benefits,and the impact of construction on the ecological environment should be greatly reduced.But the current energy consumption and emissions for asphalt pavement in China is lack of quantitative evaluation system,unable to clear its energy consumption and environmental emissions.Therefore,it is necessary to establish reasonable evaluation to energy consumption and environmental emissions of asphalt pavement method in China is particularly important.The basic research on life cycle assessment,set pair analysis and variable fuzzy set theory is carried out,and the evaluation model based on set pair analysis and variable fuzzy set theory is established.The main influencing factors of energy consumption and environmental discharge in asphalt pavement design,raw material preparation,construction,operation,maintenance and disposal are analyzed by means of literature investigation,database analysis and field investigation.Quantitative analysis indicators throughout the life cycle:the first-level indicators,for the general and general indicators;the second-level indicators are selected at all stages of representative energy consumption and emission targets,mainly refers to the various stages of energy consumption,gas emissions and some other indicators.Do some analyses of energy saving and emission reduction according the environmental impacts of each stage.Based on the quantitative analysis index,the evaluation model of energy consumption and environmental discharge of hot mix asphalt concrete pavement is constructed,and the weight of index is determined by analytic hierarchy process.A specific case study is carried out to determine the level of energy consumption and environmental discharge.And then do the sensitivity analysis to determine which stage has the greatest energy consumption and environmental emissions for putting forward feasible recommendations of the follow-up period of the energy-saving work.Do a brief study on the performance of waste rubber powder and recycled low density polyethylene modified asphalt,and the energy-saving work in the period of its production and construction is analyzed.