Study On Anti-sliding Performance And Evaluation Of Cement Concrete Pavement On Mountain Road Based On Winter Conditions

With the gradual improvement of the mountain road network in China,higher requirements have been put forward on the anti-sliding performance of mountain roads.The anti-sliding performance of cement roads in mountain areas has been studied,and a reasonable evaluation system has been established to effectively manage and maintain pavement maintenance.Mountain road safety plays an active role.This article takes the cement concrete section of the S248 line from Jiufeng Town to Liangjiang Town of Shaoguan City in northern Guangdong as the research background,introduces environmental factors,and uses winter conditions through a combination of laboratory tests,field tests,theoretical analysis and linear regression analysis.Under the mountain road cement concrete pavement anti-sliding performance and evaluation were analyzed and studied.The specific research content and results are as follows:1.For the cement concrete specimens prepared indoors,the raw materials,preparation methods and selected anti-sliding performance test equipment are briefly described,and the compressive strength of the specimens is measured to construct a cement concrete pavement based on winter conditions.The field test of anti-sliding performance provides test conditions.2.From the perspective of field test research,explore the linear analysis model and hypothesis test based on the pavement anti-skid performance under the influence of winter environment,and solve the correlation between the test indexes of cement concrete pavement anti-sliding performance under winter environment problems,verify the linear correlation of the anti-sliding performance test indicators.3.Based on the influence of environmental factors selected under winter conditions,combined with the anti-sliding performance test data of different test objects,data processing,and applying the predictive function of multiple linear regression analysis of SPSS statistical software to construct a pavement anti-sliding at winter The performance regression prediction model compares and analyzes the antisliding performance prediction results and actual measurement results,explains the reasons for the difference between the prediction results and the actual measurement results,verifies the applicability of multiple linear regression analysis,and analyzes the resistance of different environmental factors to the test objects The degree of influence of anti-sliding performance.4.Based on the defects of the current system on the temperature correction value of the swing value of the pavement anti-sliding performance,through linear regression analysis and hypothesis testing,a linear regression model suitable for 0 ℃and below conditions is determined,which is resistant to winter conditions.The comparative analysis of the pendulum value in the anti-sliding performance provides a theoretical basis.5.Based on winter conditions,build an evaluation system based on dual-factor anti-sliding performance measurement indicators,correct the pendulum value,evaluate the anti-sliding performance of different specimens and mountain roads,and obtain the best anti-sliding performance pavement treatment process.Make rational suggestions for the road traffic safety of concrete concrete pavement.The research on the anti-sliding performance of the cement concrete pavement in the mountain area under winter conditions enriches the research and practice of the existing anti-sliding performance system,and is the outdoor anti-sliding performance research under the non-environmental factors of the traditional cement concrete pavement and the indoor single-factor control The study of anti-sliding performance has brought a new perspective to promote the safe development of cement concrete pavement in mountainous areas under the influence of the environment,and provide a new idea for the research of traffic safety of cement concrete pavement.