PREVENTION METHOD OF EXPANSION OF CONTAMINATION AND SHIELDING METHOD IN POWER PLANT, AND INVESTIGATION METHOD OF INSIDE OF POWER PLANT

摘要

PROBLEM TO BE SOLVED: To prevent dust from being dispersed while a nuclear reactor plant is demolished. ! SOLUTION: A prevention method of expansion of contamination includes: a step of providing openings to a space surrounded by a nuclear reactor structure installed inside a nuclear reactor building by drilling; and a step of providing a member for filling up the space through the openings so as to replace the space with the member. The replacement is performed by injecting a filling gel through the openings into the space so as to fill one of void spaces inside the nuclear reactor building with the filling gel. ! COPYRIGHT: (C)2015,JPO&INPIT