线性隧道式地下精密试验空间接地系统设计研究  

Design of Grounding System for Underground Precision Experimental Rooms in Form of Linear Tunnels

作　　者：崔志宾 陈海军 林春刚 姬祥 CUI Zhibin;CHEN Haijun;LIN Chungang;JI Xiang(China Railway Tunnel Consultants Co.,Ltd.,Guangzhou 511455,Guangdong,China;Provincial Key Laboratory of Intelligent Monitoring and Maintenance of Tunnel Structure,Guangzhou 511462,Guangdong,China)

机构地区：[1]中铁隧道勘察设计研究院有限公司,广东广州511455 [2]广东省隧道结构智能监控与维护企业重点试验室,广东广州511462

出　　处：《隧道建设(中英文)》2024年第S2期383-390,共8页Tunnel Construction

基　　金：中铁隧道局集团科技创新计划(隧研合2022-04)。

摘　　要：为解决线性隧道式地下精密试验空间项目建设过程中关于接地系统的特殊功能需求问题,以浙江之江实验室莫干山AI基地线性隧道式地下精密试验空间工程及广州从化WHDK工程为例,基于功能接地、保护接地、局部水平等电位网格式信号接地,精密试验仪器设备独立接地干线,接地端子及不同地网之间的电位调差设施等,提出精密试验仪器设备设置单独接地干线和接地端子的共用接地系统、精密试验仪器设备信号独立接地系统2种方案。并针对2种方案的适用性和优缺点进行分析,就各自方案可能存在的问题给出对应的解决和补强措施,得出正常情况建议采用方案1,在需求方对精密试验仪器设备信号接地有非常明确的需求,且可证明此需求为必要需求时可考虑方案2的结论。There are special functional requirements for the grounding system during the construction of linear tunnel-type underground precision experimental housing projects.A case study is conducted on the tunnel-type precision experimental housing project of Moganshan AI Base in Zhejiang(China)and WHDK project in Conghua(China),two schemes of common grounding systems with separate grounding trunk and grounding terminal and signal independent grounding system are proposed for precision test instruments and equipment in test space based on functional grounding,protective grounding,local horizontal equipotential grid format signal grounding,independent grounding trunks for precision experimental instruments and equipment,grounding terminals,and potential adjustment facilities between different ground grids.The applicability,advantages and disadvantages of these two schemes are analyzed,and the corresponding solutions and strengthening measures are given for the problems that may exist in each scheme.It is concluded that scheme 1 is recommended under normal circumstances,and scheme 2 can be considered when there is a clear and necessary demand for signal grounding of precision test instruments and equipment.

关 键 词：线性隧道式地下精密试验空间 接地系统 电位差 

分 类 号：U45[建筑科学—桥梁与隧道工程]