Load Transfer Efficiency Analysis and Void Evaluation of Composite Pavement Cement Concrete Slab

The void at the bottom of a cement concrete slab is common problem composite pavements. It great significance to evaluate spring stiffness, size, and soil base elastic modulus timely accurately for maintenance guarantee pavement performance. In this paper, joint modeled load transfer mechanism realized by using groups simulating dowels that connect two slabs joint. A database established based on large number simulation results efficiency voids changing law reveals their relationship. Taking into consideration modulus, evalua\tion method back propagation neural network algorithm. show evaluation can provide determination map with parameters. values parameters be determined deflection basin. After querying Atlas, more accurate. research scientific guidance identification effectively extend service life pavement.