Significant changes have taken place in the cover layer distribution,thickness and structure of Cofferdam parts of xiluodu hydroelectric station,becausea large number of calcium carbide residue Rolled into the Jinsha River When imports of the plant and diversion tunnel was excavated.gravel thickness approaching the both sides shore was big,,and was primarily the big boulder,it was built on stilts seriously,the cut-off wall construction difficulty was enormous.in this article,from the angle of plan of construction and technical process,discusses on he question which was met in cut-off wall cons...
