| 摘要 |
PROBLEM TO BE SOLVED: To provide a means capable of stably arranging a structure on the water bottom ground, by enhancing its ground strength by improving a weak layer of the water bottom ground, in an underwater foundation fixed by a plurality of piles for driving the structure for constructing a building such as a pier in the water bottom ground. SOLUTION: This underwater foundation is fixed by the plurality of piles 8 and 9 for driving the structure 1 for constructing the building such as the pier in the water bottom ground G. A bulb-shaped ground reinforcing part 16 is formed by injecting ground reinforcing chemicals 12 into a lower support layer of the water bottom ground from the tip of the piles 8 and 9 by a chemical injector extractably inserted inside the piles 8 and 9. COPYRIGHT: (C)2006,JPO&NCIPI
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