ANALYSIS OF EFFECT FACTORS ON BURIED PIPELINE DUE TO EXCAVATION OF TWO ADJACENT FOUNDATIONS

Based on the analysis of the displacement field of buried pipeline between the two deep excavation,the effect factors on buried pipeline during excavation of two adjacent foundation are simulated and analyzed using 3D FEM.Several factors such as buried depth,distance from two adjacent excavations,pipeline materials,substratum,the ratio of the elastic modulus of pipeline to adjacent soil,etc.are analyzed primarily,and their influences on pipeline are checked by the horizontal and vertical displacement.Some valuable conclusions for construction practice are drawn.