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地铁建设工程中的杂散电流防护系统在施工过程中经常大范围出现铜测防端子丢失现象而不能保证整个防护系统的完整性。提出了通过跨接电缆将排流网钢筋连成一体的杂散电流防护系统改造方案。提出对跨接后的薄弱地区加装监测点进行极化电压有效监测。改进后的基于光纤通信的集中式杂散电流监测系统使数据得以有效传输,可为地铁运营提供参考数据。
Stray current protection system in the subway construction project often occurs in the course of the construction of a large loss of copper detection and prevention terminals can not guarantee the integrity of the entire protection system. A scheme of stray current protection system is put forward, which connects the steel bars of the drainage network by jumper cables. It is proposed to install monitoring points in weak areas across the bridge to monitor the polarization voltage effectively. The improved optical fiber communication-based centralized stray current monitoring system can effectively transmit data and provide reference data for subway operation.