A building is constructed on a site underlain by saturated clay, normally consolidated. The excess pore water pressures measured at the centre of the clay layer 6 months after construction are significantly lower than that anticipated by 1-D Terzaghi’s theory of consolidation. What could be the reasons for the observed underprediction in the excess pore water pressure dissipation? Select all options that applies. A.3-D flow of water within the soil B.The compression index assumed in design is incompatible with the soil conditions encountered in the field. C.The coefficient of consolidation assumed in design was over-estimated D.The coefficient of consolidation assumed in design was under-estimated
A building is constructed on a site underlain by saturated clay, normally consolidated. The excess pore water pressures measured at the centre of the clay layer 6 months after construction are significantly lower than that anticipated by 1-D Terzaghi’s theory of consolidation. What could be the reasons for the observed underprediction in the excess pore water pressure dissipation? Select all options that applies. A.3-D flow of water within the soil B.The compression index assumed in design is incompatible with the soil conditions encountered in the field. C.The coefficient of consolidation assumed in design was over-estimated D.The coefficient of consolidation assumed in design was under-estimated
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A building is constructed on a site underlain by saturated clay, normally consolidated. The excess pore water pressures measured at the centre of the clay layer 6 months after construction are significantly lower than that anticipated by 1-D Terzaghi’s theory of consolidation. What could be the reasons for the observed underprediction in the excess pore water pressure dissipation? Select all options that applies.
A.3-D flow of water within the soil
B.The compression index assumed in design is incompatible with the soil conditions encountered in the field.
C.The coefficient of consolidation assumed in design was over-estimated
D.The coefficient of consolidation assumed in design was under-estimated
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