Local repair method combining internally bonded CFRP and polymer grouting for cracks in drainage pipe

摘要

A local sealing structure for cracks on a drainage pipe, includes: a first repair material, a second repair material, a cover layer, a reinforcement body and a joint filler; wherein: the joint filler is configured to fill and seal cracks on a pipeline; the reinforcement body is configured to reinforce soil outside the pipeline; the first repair material is configured to seal the cracks; the second repair material is configured to adhere a surface of the first repair material; and the cover layer is configured to seal a surface of the second repair material; wherein a joint offset distance between the first repair material and the second repair material is greater than or equal to a third predetermined distance. A local repair method for cracking of a large-diameter concrete drainage pipe is further provided.