Based On The Disposal Of Asphalt Pavementarches In The Gobi Area Of The Desert Ofsouthern Xinjiangmulti-Objective Programme Evaluation Study

The highway in the Gobi area of the desert of Southern Xinjiang is an important part of the planning of the Asian Highway network and the Xinjiang trunk road network,and has important economic value and strategic significance.But in recent years,under extreme weather in the Gobi region of the desert of southern Xinjiang,the region’s highways have been swollen with this new disease.This disease seriously endangers the safety of driving,if allowed to arch disease development is not disposed of,will lead to structural damage to the road surface,shorten the life of road services,increase maintenance costs.At present,for the built road to use the method of cutting the bloating seam at the grass-roots level to deal with the arch disease,but the gap distance,width,filler,construction methods,etc.will lead to the quality,cost,duration,the existing traffic impact of the difference,if the disposal plan is not appropriate will produce adverse effects.Therefore,it is urgent to understand the law of arching in this area,and to carry out multi-objective evaluation and analysis of different disposal schemes,so as to provide a basis for the final formation of the best arching disposal scheme.Firstly,this paper studies the occurrence of arching road arching in the Gobi area of the desert of southern Xinjiang and the main influencing factors through the external manifestations of arching disease and the temperature change of each structural layer.It is proposed that the environmental temperature,swell spacing,width,depth and bloating filler,as well as traffic interruption,disposal cost and other factors must be considered.In addition to the traditional multi-objective management mode of time-cost-quality,we should also consider the reduction of road traffic capacity and regional travel efficiency in the construction of highway arch expansion and disposal.Secondly,in the process of forming different arching disposal schemes,this paper studies the engineering quality,duration,cost and traffic jam reduction targets that should be achieved by different schemes.On the one hand,the theory of the connotation and influencing factors of the project objectives is studied,the relationship between the objectives is summarized and summarized,on the other hand,the multiple objectives to be considered when the arching and disposition of the water-stabilized grass-roots asphalt pavement in the Gobi area of the desert of southern Xinjiang are studied,the quantitative model of the quality,duration and cost and traffic interference of the arch disposal scheme is established,and a concrete and objective measurement method is proposed.Thirdly,in the evaluation of different arch expansion disposal schemes,based on the principle of systematization,hierarchy,operability,quantitative and qualitative index combination,this paper constructs a system of evaluation of arch expansion disposal programs consisting of technical,economic and social criteria and 11 evaluation indicators.Using cloud model theory,using cloud model uncertainty reasoning,the quantitative qualitative index is realized through MATLAB software.Using entropy right method to determine the initial weight of the index,combined with the theory of change of power to introduce equilibrium function to determine the comprehensive weight of the indicator,and finally established the TOPSIS evaluation model,using euclidean distance to indicate the distance between the arching disposal scheme and positive and negative ideal solution,in order to quantify the advantages and disadvantages of different arching disposal schemes,for the final arch expansion disposal program decision-making to provide theoretical support.Finally,combined with the highway arch expansion disposal project in Themoyu-Hetian section of Xinjiang,this paper establishes the multi-target model of the arch expansion disposal scheme and the evaluation model of different schemes,and verifies it to provide a new idea for solving the decision-making problem of the arch expansion disposal scheme in the Gobi area of the desert of southern Xinjiang.