适用于高桥隧占比高速铁路的综合接地方案研究

Study on Integrated Grounding Solution for High-speed Railway with High Proportion of Bridges and Tunnels

对于桥隧占比高的高速铁路线路,为合理利用构筑物内的钢筋结构,减少维护工作量,降低投资,通过理解和分析现行防雷接地技术规范及相关通用图册,提出在隧道及部分桥梁地段,利用电缆槽内纵向接地钢筋取代贯通地线的综合接地方案,并对该方案的工程可实施性进行了研究与分析。

Based on the understanding and analysis of current technical specifications of lightning protection and grounding and relevant all-purpose book of drawings,an integrated grounding solution is proposed for high-speed railway with high proportion of bridge and tunnel,in which the longitudinal grounding reinforcement in the cable trench replaces the through ground wire in the tunnel and some bridge sections in order to make rational utiliztion of the reinforcement construct in the structure and reduce the maintenance workload and the cost.In the end,the feasibility of the project is studied and analyzed.