The damage of buried pipeline is controlled by site condition

such as faults

characteristics of rock and soil. Analyzing the influence of site condition on the damage of buried pipeline under earthquake load is the key of earthquake lifeline engineering. By the operation of defintion body in ADINA

the type of site body is selected

and pipeline body is subtracted from site body by Boolean Body Operators. Therefore

the geometry model is obtained. Through model preferences

parameters of the model are defined

such as the characteristics of rock and soil in site

characteristics of pipeline and faults. Time function of earthquake load and displacement load of faults are applied

initial displacements are defined based on the movement of faults

and pipe-soil friction is considered by contact control in ADINA. According to the calculating results

influence of buried depth

parameters of faults

pipe-soil friction

and faults movement is investigated. Some advice for the protection of buried pipeline under earthquake load is proposed.