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2005•Chinese journal of rock mechanics and engineeringRequires access

INITIAL EXCESS PORE WATER PRESSURE DISTRIBUTION AND SETTLEMENT ANALYSIS OF SATURATED SOFT SOIL UNDER EMBANKMENT

Yunmin Chen

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Abstract

Deformation and stabilization are two important questions encountered in geotechnical engineering,especially for embankments constructed on soft soil foundations.For calculation convenience,assuming that soft soil foundation be Biot medium and embankment loading be exerted instantaneously,initial excess pore pressure and effective stress distribution are obtained.Furthermore,the initial settlement and the consolidation settlement are achieved.Influences of thickness of the compression layer and Possion′s ratio of soil skeleton on the settlement are analyzed.These solutions are convenient to be used to calculate the quantities of the embankment fill,the excess pore water pressure distribution,and the settlement.These formulas are employed to analyze a practical engineering case.

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Deformation and stabilization are two important questions encountered in geotechnical engineering,especially for embankments constructed on soft soil foundations.For calculation convenience,assuming that soft soil foundation be Biot medium and embankment loading be exerted instantaneously,initial excess pore pressure and effective stress distribution are obtained.Furthermore,the initial settlement and the consolidation settlement are achieved.Influences of thickness of the compression layer and Possion′s ratio of soil skeleton on the settlement are analyzed.These solutions are convenient to be used to calculate the quantities of the embankment fill,the excess pore water pressure distribution,and the settlement.These formulas are employed to analyze a practical engineering case.

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Available abstract

Deformation and stabilization are two important questions encountered in geotechnical engineering,especially for embankments constructed on soft soil foundations.For calculation convenience,assuming that soft soil foundation be Biot medium and embankment loading be exerted instantaneously,initial excess pore pressure and effective stress distribution are obtained.Furthermore,the initial settlement and the consolidation settlement are achieved.Influences of thickness of the compression layer and Possion′s ratio of soil skeleton on the settlement are analyzed.These solutions are convenient to be used to calculate the quantities of the embankment fill,the excess pore water pressure distribution,and the settlement.These formulas are employed to analyze a practical engineering case.

Key concepts: Pore water pressure, Biot number, Consolidation (business), Geotechnical engineering, Levee, Settlement (finance), Effective stress, Geology

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