STUDY OF AN ESTIMATE METHOD OF THE BEHAVIOR OF DUCTILE IRON PIPELINE WITH EARTHQUAKE RESISTANT JOINTS BURIED ACROSS A FAULT

Abstract

 If an earthquake occurs inland, a gap of a fault may appear at ground surface and it may reach several meters. Therefore, water pipelines across a fault must be designed carefully. However, the design method of ductile iron pipes with earthquake resistant joint buried across a fault is not established. In this study, we analyzed the behavior of ductile iron pipes with earthquake resistant joints buried across a fault and studied the behavior of joints every dip of a fault. In addition, based on the analysis, we clarified the availability of an estimate method of behavior of ductile iron pipeline with earthquake resistant joints buried across a fault.