Preceding the construction method of the premises trench of nuclear power plant

摘要

PROBLEM TO BE SOLVED: To provide a pre-construction method for a premises-use trench of a nuclear power plant with which the trench can be constructed on earlier stage after a reactor building is constructed completely.SOLUTION: A pre-construction method for a premises-use trench of a nuclear power plant includes the steps of constructing a plurality of buildings for nuclear power generation, constructing the trench between the buildings via a gantry matching the trench to an installation level of the trench, and backfilling a gap between a foundation and the trench after the trench is constructed.