依托北京地铁8号线某区间盾构隧道工程，首先从盾构施工参数的关联性进行分析，选取4个相对独立的施工参数。之后采用灰色关联分析方法，对盾构施工条件下引起的地表沉降进行因素敏感性分析。分析结果表明，各施工参数对地表沉降的敏感性从大到小依次为土仓压力、同步注浆量、刀盘扭矩、同步注浆压力，以期对未来类似工程盾构施工参数优化和沉降控制研究提供借鉴。

With shield tunneling along Beijing metro Line 8 as the background, shield tunneling parameters’ correlation was analyzed and 4 effective parameters were determined. Adopting grey relational method, the author analyzed various factors’ sensitivity of the ground surface settlements during shield tunneling. Results showed that the ground surface settlements were influenced successively by chamber pressure, synchronous grouting volume, cutter head torque and synchronous grouting pressure. The research findings will play an important role in the study of shield tunneling parameters optimization and ground surface settlement control for the similar projects in the future.