초록

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Abstract ▼ AI-Helper

In order to find out the effect of base projecting walls of footing supporting soft ground on increase of bearing capacity, numerical analyses were conducted with varying the number and length of the base projecting walls and the results of the numerical analyses were compared with those of the mode...

In order to find out the effect of base projecting walls of footing supporting soft ground on increase of bearing capacity, numerical analyses were conducted with varying the number and length of the base projecting walls and the results of the numerical analyses were compared with those of the model tests. It can be seen from the results of numerical analyses and the model tests that the bearing capacity of the footing supporting soft ground increases due to the existence of the base projecting walls and the bearing capacity increases with increase of the length of the base projecting walls. According to the results of the model tests, it can be seen that bearing capacity increases with the number of the base projecting walls of 2 to 4 and it decreases when the number of the base projecting walls of 5 whereas results of the numerical analyses show that bearing capacity was little affected by the number of the base projecting walls. It can be said from the results of the model tests and the numerical analyses that economical design of the footing with base projecting walls be accomplished for the value of unity of the ratio of the length to the spacing of the base projecting walls.

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