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.
