摘要:研究目的:地铁盾构施工是一个复杂过程，地质条件对盾构参数有重要影响。为研究地质条件对盾构参 数的影响，本文以某市地铁过江隧道为例，对砂性、岩性两种地质条件下的贯人度等4种参数构建复杂网络， 分别从微观和宏观两个维度对其进行研究，分析不同地质条件下各种盾构参数的演化规律。 研究结论:( 1)验证了将地铁盾构参数时间序列转化为复杂网络进行研究的可行性；（2)在不同地质条件 交汇处，各参数网络的节点度明显增大，说明盾构系统在此处有较大波动;（3)砂性地质条件下的网络相较于 岩质地质条件下更不稳定，且气仓压力对外界变化更为敏感，可用于监测盾构系统的稳定性；（4)本研究可为 地层识别提供支持。

Abstract:Research purposes ： Metro shield construction is a complex process， geological conditions have a major impact on the shield parameters. For the purpose of study the effect of geological conditions on the parameters of the shield，considering the stratums surrounding a certain section of a city tunnel， and the parameters that in different geological conditions were converted into a complex network，this paper studied it from microscopic and macroscopic， analyzed the evolution of the various parameters of the shield under different geological conditions. Research conclusions: (1) Verify the feasibility that transform shield parameter time series into complex networks; (2 ) In different geological conditions interchange，parameters network ( s node degree significantly increased，indicating that the shield system has greater volatility;( 3 ) Lithostratigraphic stratum is more stable than sand formations，and gas compartment pressure is more sensitive to changes in the outside world， can be used to monitor the stability of the system；(4)This study can provide support for the formation identification.