城市轨道交通主体结构钢筋与地网连接方式研究

Connection Mode of Main Structure Reinforcement and Earth Mat in Urban Rail Transit System

车站主体结构钢筋与地网的连接方式是城市轨道交通接地系统及杂散电流防护系统设计过程中的关键节点,直接影响人身、设备安全及杂散电流分布。分析了结构钢筋是否接地对人身安全的影响,仿真计算分析了结构钢筋接地以及对杂散电流防护的影响。结果表明,主体结构钢筋与地网连接可有效保证车站人身及设备安全,并不会额外增加轨道对排流网和结构钢筋的泄漏电流。

The connection mode of main structure reinforce- ment and earth mat is a key node in urban rail transit ground- ing system and stray current protection system, it can directly affect the personal security, device performance and the stray current distribution. In this paper, the influences of the con- nection mode on personal security and stray current protection are numerically simulated. The results show that the main structure reinforcement and ground connections can effectively guarantee the personal security, no any additional leakage cur- rent will be increased.