Abstract
A large number of the steel sheet pile canal has been widely used in rural areas. In recent years, the relationship between the durability and the corrosion of the steel sheet pile has been discussed as a technical problem. In this study, development of conservation method for corroded steel sheet pile is going to be performed, applying steel sheet pile - concrete composite. The experiments were conducted in model tests and existing structure. In the monitoring, the bending properties of composites are evaluated based on AE (acoustic emission) and load-displacement relations. Thus, the mechanical properties could be evaluated by comparing a moment with a maximum displacement, which is analyzed by mechanical properties. A relation between mechanical value and composite properties are correlated. The AE generation behavior is correlated with fracture process in bending test, and thus the covering effect of concrete is quantitatively estimated.