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- W4221095890 abstract "Stone columns are widely used around the world as cost-effective soil improvement techniques for highways and embankments. They are also used as drainage to expedite the consolidation period, and accordingly to increase the allowable pressure, reduce settlement, and reduce the liquefaction potential for shallow foundations. Currently the design of these columns is based on the unit cell or homogenised material concepts, which neglect the effect of the interaction of the columns. This paper presents a 3-D numerical model using the finite element technique and the commercial software ‘ABAQUS’ to simulate the case of a group of stone columns installed in soft clay. The model is capable of capturing the interaction between columns and the surrounding soil and of establishing the mode of failure of the system. After validating the model with the available experimental results, it was used to predict the allowable pressure and the failure mechanism of groups of stone columns for given geometry/soil conditions. An improvement factor was introduced ‘IF’, which is defined as the ratio of the capacity of the improved to the unimproved soft clay. The results of this investigation are presented in the form of design charts to assist the engineer to determine the level of improvement needed to achieve a given allowable pressure for the foundation." @default.
- W4221095890 created "2022-04-03" @default.
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- W4221095890 date "2022-03-11" @default.
- W4221095890 modified "2023-09-29" @default.
- W4221095890 title "Numerical models for shallow foundation on soft clay reinforced with a group of stone columns" @default.
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- W4221095890 doi "https://doi.org/10.1080/17486025.2022.2046873" @default.
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