UPWARD LIFTING CONTROL TECHNOLOGY OF SHIELD SEGMENT DURING THE SUBWAY OPERATION IN JINAN AREA
Upward lifting of the shield segment has great influence on the quality control of forming segment.The rapid rising section will cause serious misalignment,damage,leakage and other quality problems.It seriously affects the normal use and safety of the tunnel during operation.Combined with the emergency treatment project of segment floating during the operation of shield tunnel in a Section of Jinan Metro Line 3,analysis and study segment buoyancy formation reasons,formed a series of control segment floating construction technology.Prove that the control technology of segment buoyancy control effect is obvious verified by field actual construction.It has good reference value for similar emergency treatment engineering.
shield tunnelupward lifting of the shield segmentcontrol technique
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