Large-diameter shield segment slab staggering prevention sleeve device

The utility model discloses a large-diameter shield segment slab staggering prevention sleeve device which comprises a sleeve installed in a segment bolt hole, the sleeve is a hollow cylindrical sleeve, and one end of the sleeve is arranged in an inclined opening mode. The casing pipe is made of polypropylene, namely ppr for short, and the ppr casing pipe is lower in cost, higher in prefabrication efficiency, more convenient to install and capable of being adjusted in time according to actual conditions. 本实用新型公开了一种大直径盾构管片防错台套筒装置，包括安装在管片螺栓孔内的套管，所述套管为空心圆柱形套管，套管的一端为斜口设置。该实用新型套管采用三型聚丙烯，简称"ppr"，ppr套管成本更低、预制效率更高、安装更便捷，同时可根据实际情况及时调整。