为适应复杂条件下盾构隧道管片构造设计要求，首先介绍一种通用环管片错缝拼装的预排版计算方法，然后详细分析管片构造的主要几何参数与隧道最小拼装曲线半径的关系，提出满足线路曲线半径拼装要求的管片主要几何参数组合，并基于某地铁区间的设计线路，比较不同管片楔形量对拼装误差的影响，得出管片楔形量过大会导致直线段或者较缓的曲线段拼装误差过大的结果，继而算出基于线路的最大、最小楔形量，提出管片楔形量建议值计算方法，并与3条地铁线路的管片选型进行对比验证。研究成果可为实际工程的管片选型及构造设计提供合理建议。

Firstly, a pretypesetting calculation method for staggered joint assembling of universal segments is introduced; the relationship between main geometric parameters of segment structure and the minimum assembling radius of tunnel is analyzed in detail; and main segment geometry parameters matching the assembling curve radius are proposed. Secondly, the influence of different segment wedge shape quantities on assembling error is analyzed based on a metro tunnel section; and it is concluded that overlarge segment wedge shape quantity would lead to overlarge segment assembling error of straight line or slower curved line, based on which the maximum and minimum segment wedge quantity can be calculated respectively. Finally, a calculation method for recommended wedge quantity is proposed, which is compared and verified by segment selection of three metro lines. The results can provide rational suggestion for segment selection and structural design of practical engineering.