材料
Online ISSN : 1880-7488
Print ISSN : 0514-5163
ISSN-L : 0514-5163
締固め球根基礎工法の開発と支持力特性
大島 昭彦高田 直俊
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ジャーナル フリー

2000 年 49 巻 3 号 p. 340-343

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A series of centrifuge model test of “Compacted Bulb Foundation Method” was carried out to investigate the effect of tamping conditions, such as ram mass, ram base area and number of blows, and foundation base area on characteristics of its bearing capacity. Main conclusions are as follows: 1) ultimate bearing capacity and coefficient of subgrade reaction of compacted bulb was hundred times or more and ten times larger than untamped ground, respectively, 2) its bearing capacity was dependent on the ram mass per unit base area, 3) compacted bulb tamped by a ram having larger base area relative to loading area had lager bearing capacity.

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