Monitoring device for controlling floating of shield tunnel segment

The utility model relates to a monitoring device for controlling floating of a shield tunnel segment, and belongs to the technical field of shield tunnel construction.The monitoring device comprises supporting mechanisms detachably connected with the inner wall of the segment, the supporting mechanisms are arranged at intervals in the axial direction of a tunnel, a positioning mechanism is arranged on a supporting rod, and the positioning mechanism comprises a positioning ring and a positioning rope; the axes of the positioning rings and the axis of the tunnel are collinear, and the positioning rope penetrates through the multiple positioning rings and abuts against the inner walls of the positioning rings. The method has the effects that the floating condition of the duct piece can be known in time, so that treatment measures are taken, and the influence on the final construction quality is reduced. 本申请涉及一种用于控制盾构隧道管片上浮的监测装置，属于盾构隧道施工技术的领域，其包括与管片内壁可拆卸连接的支撑机构，支撑机构设置为多组且沿隧道轴向间隔设置，支撑杆上设置有定位机构，定位机构包括定位环与定位绳，定位环轴线与