In recent years

the parallel dual-subway tunnels have increased rapidly because of the need of planning and plane design

the restriction of terrain

geology and surface construction. The parallel dual-subway tunnels are often constructed in the same buried depth of most metro running tunneling. Taojin-Quzhuang running tunneling in rail transit # 5 of Guangzhou City has running within complex strata

and tunneling section

space between dual-subways

buried depth vary with mileage. Surface settlement will be interacted in the progress of dual-subways excavation; and settlement prediction becomes more difficult. Based on generalized geological model

utilized strata parameters obtained by inverse analysis

selected typical tunneling section and geological profile

using numerical simulation method

surface settlement induced by different spaces

buried depths and strata are analyzed. The regularity of settlements is obtained; and surface settlements are predicted in the progress of tunnel construction

so as to provide guidance for safety construction.