Comprehensive Effects Of Extreme Climate And Load On Asphalt Pavement

Regional climate and traffic conditions in XinJiang has its own characteristics,which the current design and construction in our country don't take into consideration.Traditional asphalt mixture test are mostly based on single factor such as climate or the load,and few people focus on the influence of the combination of environment and load.Especially under the conditions of extreme temperature and overloading,whicn will accelerate damage of asphalt pavement.Based on temperature field and the traffic load parameters,the thesis will reveal the destruction regulation of asphalt pavement under the condition of regional climate and traffic conditions in XinJiang,so as to provide reference for asphalt pavement construction.Firstly regional climate and traffic parameters should be measured and obtain continuous temperature and traffic load parameters.To this end,the project developed the technology which can measure pavement temperature field and the traffic load automatically.Then this continuous measuring device will be set on the section of ATTA road to obtain the regional climate and traffic parameters.Using finite element program ANSYS to simulate the temperature field.Based on the wheel track monitoring device that measure by pressure sensor,the space distribution of the wheel track along the road transverse can be accurately measure.Based on the regional climate and traffic conditions in XinJiang,asphalt pavement mechanics analysis and performance forecast can be maken,to evaluate the xinjiang region of asphalt pavement under the coupled action of temperature,load damage are studied.Finally based on the specific of extreme weather and load conditions,evaluation indexes from the mixture design,raw material selection,mix proportion design of asphalt mixture and pavement structure combination design and construction technology,engineering,quality control and operation management and other aspects to take measures to improve asphalt pavement performance.This project focus on the influence that extreme weather and load condition imposed on the asphalt road,and it will contributes to an better understanding of decay law of asphalt pavement under the effect of comprehensive,and it will improving design and construction method and the asphalt pavement using performance and life.In the current highway construction in xinjiang under the background of rapid development,the xinjiang regional climate and traffic conditions on the influence of the asphalt pavement has important practical significance...