Based on the source-sink method

a three-dimensional additional stress formula caused by double-o-tube (DOT) shield tunnel construction soil loss is derived. The additional load caused by additional bulkhead pressure

the friction between soil and shield shell

and soil loss is added to study the total distribution of additional stress on adjacent underground pile foundation. The results show that

the additional squeeze pressure stress is caused in front of the excavation face

while the additional negative tension stress is caused in back of the excavation face. The greater pressure and tensile stresses occur near the depth of DOT shield tunnel axis. The friction between soil and shield shell plays a dominant role in total additional load

especially in the y-direction. The additional load in direction perpendicular to the segment is larger than the additional load in driving direction but has less range of influence. The additional load is small in the vertical direction

which has the opposite direction additional load near the tunnel axis compared to the additional load at each ends and its curve likes bow-shaped distribution. By the comparison with the results of numerical simulation

centrifuge experiments and field measurement

it is proved that the research on influence of DOT shield tunnel excavation on neighboring piles is reliable through analytical analysis.