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分析了公路隧道防雷接地的特殊性 ,提出将隧道初期支护的锚杆、管棚、拱架等焊接固连起来多点引出做基础接地体 ,构成接地装置 ,并采用拦截、屏蔽、均压 (等电位连接 )、分流和共用接地系统等综合防雷方案。实践证明 ,行之有效 ,对公路隧道防雷接地具有现实意义。
This paper analyzes the peculiarity of lightning protection and grounding in highway tunnel. It puts forward that the anchor, pipe roof, arch and so on of the initial support of the tunnel should be fixedly connected with each other to make the grounding body, and the grounding device should be formed. Voltage (equipotential connection), shunt and common grounding system and other integrated lightning protection program. Practice has proved that it is effective and has practical significance for lightning protection and grounding of highway tunnels.