| 摘要 |
PROBLEM TO BE SOLVED: To provide a radioactive waste disposal facility and its construction method capable of cutting off water without having an adverse influence on bentonite or bentonite mixed soil filled in a gallery. SOLUTION: This radioactive waste disposal facility is constituted of the gallery 3 having a circular section formed in the ground G for storing the radioactive waste 5, the first improved layer 2 comprising bentonite grout or clay grout formed as a peripheral wall of the gallery 3, and the second improved layer 1 comprising a cement-based grout or a silica-based grout formed on the outer peripheral part of the first improved layer 2. COPYRIGHT: (C)2006,JPO&NCIPI
|
