Anti-floating Patent Technology for Shield Segments

In bedrock and water-rich strata, the quality defects caused by segment uplift are extremely severe.First, the ellipticity exceeds the standard, resulting in deteriorated stress conditions of the segments;second, concrete cracking, dislocation and leakage of the segments occur;third, the durability of the segments is reduced.The impact of shock waves after train operation is intensified, which increases maintenance costs and safety risks during operation.

 

 

Vedio: Field test conducted at China Railway Seventh Group demonstrates the anti-floating effect