Deformation Risk of Buried Pipeline Due to Fault Based on Elasticity Theory of Dislocation

Seismic fault displacement poses a significant threat to various types of civil structures. Location and amount of displacement have a high degree of uncertainty for carrying out the countermeasure of fault movement. Therefore, the current countermeasures are conducted in such a way that the possible surface displacement on the active faults crossing the buried pipeline is estimated using an empirical formula. By the way, if the fault displacement does not appear on the ground surface, the ground strain due to the fault dislocation may cause damage to the pipeline. This study aims to clarify the possible deformation of buried pipelines caused by fault dislocations based on the elasticity theory of dislocation and to provide a database for exploring fault countermeasures for buried pipelines.