METHOD FOR REPAIR OF PIPE CULVERT UNDER BANK Russian patent published in 2013 - IPC E01F5/00 

FIELD: construction.

SUBSTANCE: method to repair a pipe culvert under a bank, consisting in the fact that temporarily a stream flow bed is diverted, temporary falsework (support) is mounted inside the pipe, support reactions are transferred to the falsework, and the shape of its cross section is corrected. Simultaneously with correction of the pipe shape, the soil space around the pipe is solidified, by injection of a hardening mortar into pre-drilled wells around the pipe, afterwards the falsework is dismantled, and the stream flow is sent into the previous bed.

EFFECT: provision of high reliability of repair of pipe culverts under a bank, reduced external load due to redistribution in a fixed soil, provision of preservation of an inner pipe section and elimination of water filtration through a bank body.