The tremie concrete placement method uses a pipe, through which concrete is placed below water level.

Tremie tube
Tremie pipe construction
Tremie concrete for bridge piers and other massive underwater placements
Analysis of L-Box Test for Tremie Pipe Concrete
CORROSION OF TREMIE PIPE OF W0714 FILM EVAPORATOR OF HEXANOLACTAM
Construction of a dry dock using tremie superplasticized concrete
Concrete placement with inclined tremie for small underwater repairs
Trial and Effect Analsis of Little Tremie Grouting of Bulk Rock Tunnel
The Key Technology of Bored Piles Poured Underwater Concrete with Tremie Method
Numerical simulation analysis of little tremie grouting effect while construction of going into portal at small-distance tunnel