Abstract：Research purposes: Construction of the metro tunnel under － passing the existing railway is related to the railway traffic safety and the metro construction safety． So the more attention is paid to such construction． In this paper，taking one subsurface excavated metro double track tunnel with shallow part as an example，the three － dimensional numerical calculation was made for the designed construction order and construction technology with the ANSYS calculation software，and the analysis was made for the stratum settlement and its distribution．
Research conclusions:The analysis showed the internal force in the stratum caused by the tunnel construction was redistributed and this was the reason for the ground settlement． However，the train load had bigger influence on the ground settlement． The numerical calculation could provide the important basis for selection of the construction measures．If the grouting was conducted to the railway subgrade before construction or the grouting was conducted through the sleeve valve bedded on both sides of the subgrade，the settlement deformation could be controlled．
蔺云宏;李冀伟;王飞. 暗挖地铁隧道斜交下穿既有铁路的施工研究[J]. 铁道工程学报, 2012, 29(11): 82-86.
LIN Yun － hong，LI Yi － wei，WANG Fei. Study on Construction of Subsurface Excavated Metro Tunnel Under －passing Existing Railway. 铁道工程学报, 2012, 29(11): 82-86.
He Chuan，Su Zongxian，Zeng Dongyang．Researchon Influence of Shield Tunnel Construction on Deformationand Secondary Inner Force of Constructed Parallel Tunnel［J］．Chinese Journal of Rock Mechanics and Engineering，2007( 10) : 2063－2069．
［2］阳军生，刘宝深．城市隧道施工引起的地表移动及变形［M］．北京: 中国铁道出版社，2002．
Yang Junsheng．Surface Movement and Deformation Caused by City Tunnel Construction［M］．Beijing: China Railway Publishing House，2002．
Luo Hanbin，Li Weiming，Zhou Guanghui．Analysis of Ground Settlement Caused by Shield Construction of Wuhan Metro with Non － equal Interval Model［J］． Journal of Railway Engineering Society，2011(1) : 86－90．
2012, Vol. 29 
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