介绍了盾构机首次穿越高速铁路轨道群的施工情况。重点叙述了工程客观条件、施工难点以及针对工程具体情况在人员、材料、设备、掘进参数设计、监测等方面采取的施工措施。施工结果表明在采取这些措施后，地面沉降能够得到有效控制，从而保证铁路安全。

The tunnel boring across underneath the tracks of highspeed railways by shield machines is presented in the paper, with the emphasis being placed on the works conditions, construction difficulties and countermeasure taken in respect of manpower, materials, equipment, boring parameter design and monitoring. The results demonstrate that, with the mentioned countermeasures, the surface subsidence has been effectively controlled and the safety of the railway has been guaranteed.