地铁车站综合接地若干问题的探讨

Discussion on Metro Station Comprehensive Grounding

采用人工接地网做为地铁车站综合接地系统,是我国地铁车站综合接地系统通常采用的方式。这种方式对地铁工程杂散电流的防护有着重要的意义。为实现综合接地网"外引接地,绝缘引入"的设计思想,工程实践中应采用新型的接地引出装置,并在其穿越地铁车站结构底板时采取相应绝缘及防水措施,同时综合接地系统采用的材质也应有所选择。

Physical grounding grid as the comprehensive grounding system of the metro station is widely used in the metro station grounding system. In this way, it has an important significance in protection of stray current in the metro project. To achieve a comprehensive grounding grid with the design objectives of external grounding and introduce insulation, the lead device of new grounding in engineering practice shall be used and appropriate insulation and waterproofing measures to passing metro station structural underfloor shall be taken, and the material should be properly chosen for integrated grounding system adopted.