PILE-TYPE LIQUEFACTION COUNTERMEASURE STRUCTURE AND CONSTRUCTION METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a pile-type liquefaction countermeasure structure for the ground, capable of suppressing a lateral flow of a liquefaction layer easily at low cost without using special materials, and a construction method thereof. ! SOLUTION: A pile-type liquefaction countermeasure structure 1 comprises: a plurality of piles 3 constructed in the ground G including a liquefaction layer 5 so as to be spaced from each other; and plate-like structures 6 each of which is arranged so as to surround a head part 3a of each pile 3. The head part 3a of each pile 3 is fixed to the plate-like structure 6 over a predetermined height (t). The piles 3 are constructed after installing the plate-like structures 6. As described above, all piles 3 are fixed at side surfaces of the head parts 3a with the plate-like structures 6, thereby falling down of the piles 3 are prevented and a lateral flow of the liquefaction layer 5 is suppressed. ! COPYRIGHT: (C)2015,JPO&INPIT