Research On Structure Combination Of Asphalt Concrete For Bridge Deck Pavement On Large Longitudinal Slope

With the rapid development of highway construction in our country, more and more attention was paid to the bridge deck textural association style under the conditions of large longitudinal slope. At the same time, the stability of the bridge deck textural association style has always been a technical problem of the road construction. Therefore, it is of great significance to do some research on it. This paper mainly made analysis on bridge deck textural association style under the conditions of large longitudinal slope according to the alpine climate and environment of northwest region of our country.Firstly, this paper did some research on the type of bridge deck both at home and abroad and actual use of performance of different types, then analyze and compare the results. The paper also made the mechanical analysis individually on uphill and downhill of the large longitudinal slope based on the existing theory and the unique climate and environment of Xinjiang region. The main consideration of uphill is rutting resistance and downhill is shear resistance. Therefore, road performance was identified to be the main consideration of the bridge deck textural association style under the conditions of large longitudinal slope. Then several styles of bridge deck can be elected to fit for the area of Guo zigou.Secondly, this thesis made a graduation designing for the optimized textural association style and then made the road performance test using the result of the graduation designing. Then it made an analysis of the test results of different textural association style and got the advantage and disadvantage of the road performance under different styles.Finally, this paper did some research on the performance indicators of the bridge deck textural association style under the conditions of large longitudinal slope. Then the large longitudinal slope bridge deck textural association style of Xinjiang region can be elected using these performance indicators and the results of road performance test. It also did the compound beam fatigue test of different Waterproof bonding layer on the recommended textural association style and then decided the entire construction form of the large longitudinal slope bridge deck pavement.