控え工増設による既存矢板壁の補強効果に関する模型実験

Abstract

The flexible bulkhead such as anchored sheet pile wall is often employed for soil retaining work of port facilities in Japan. In recent years, existing sheet pile walls are requested to be reinforced for maintenance and to be functionally enhanced for large ships. To meet these requests, a reinforcement method called dual-anchored sheet pile wall, in which the second anchorage work is to be attached to the existing anchored sheet pile wall, is expected. The design method of dual-anchored sheet pile wall, however, has not been established. In this study, model tests of the dual-anchored sheet pile wall were conducted in order to understand its behaviors. This paper describes the effect of the additional anchorage work to reduce the load acting on the existing anchored sheet pile wall, such as the bending moment of the sheet pile and the tension of the tie rod.