| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for preventing the damage to a pile, which is constructed easily, by which the term of works can be shortened and the cost of which can be reduced. SOLUTION: Sections not improved 7 are left around the piles 4 by grouting chemicals in the approximately orthogonal direction to the approximately vertical direction B of a plurality of the piles 4 buried in a ground 1. A plurality of steps of horizontal improving bodies 6 are created along the approximately vertical direction B of the ground 1. COPYRIGHT: (C)2005,JPO&NCIPI
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