Calculation of Compressive Rebound Modulus and End Displacement of Fully Seamless Bridge Connection Pavement
摘要
With the acceleration of China’s urbanization process and the increasing demand for transportation, higher requirements have been adopted for the performance of bridge pavements. Traditional asphalt mixtures are prone to diseases such as water accumulation, cracking, and noise in asphalt mixtures, which seriously affect the driving safety of vehicles and the service life of road surfaces. To address the aforementioned issues, this article adopts a novel “fully seamless” design method, aimed at improving the comprehensive performance and durability of roads and bridges. By conducting compaction experiments on the roadbed, the compressive rebound modulus of the roadbed under different loads can be determined. Laser displacement meters and other measurement methods can be used to monitor the displacement at both ends of the roadbed in real time and analyze its deformation under different loads. Number 1 static pressure is 50 N/m2, rebound degree is 85%, compressive rebound modulus is 1200 MPa; Number 2 has a static pressure of 100 N/m2, a rebound degree of 80%, and a compressive rebound modulus of 1100 MPa. This article provides a theoretical basis for the laying of bridge pavements.