为研究“L”型转角通道处墙体预留洞对顶底板内力的影响，以南京宁和城际轨道交通一期工程S3号线吴侯街站新交通与正荣G64地块连通道的改造为例，通过ROBOT有限元软件对三维实体模型开洞前后顶底板数值模拟分析，得出： 1）由于既有出入口侧墙墙体开洞，导致出入口通道转角处顶底板双向受力较未开洞时大，出入口转角处原分布筋方向配筋不足； 2）针对近期不需要预留开发条件，而远期有开发需求的出入口通道，在设计阶段应对既有出入口转角部位分布筋方向钢筋加强处理，即按双向板配筋进行加强处理，避免后期开洞过程中需另外采取结构加强措施。

To study the influence of the reserved holes in the wall at L-shaped corner passage on the internal force of the metro station roof and floor, a case study is conducted on rehabilitation project of connection passage between Wuhoujie station on line S3 of phase 1 of Ninghe intercity railway and Zhengrong G64 block, and numerical simulation analysis is carried out on roof and floor of 3D solid model before and after opening using finite element program ROBOT. Conclusions are drawn as follows: (1) The bidirectional stress on the roof and floor at the corner of entrance/exit channel is larger when the sidewall of existing entrance/exit than no holes. (2) In the design stage, considering longterm development, the reinforcing bars at the corner is strengthened using bidirectional slab.