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Imperial College in the University of London ? ?)( 313 ??? ?????? ABuA. W. Skempton Darcy39。s Law is a generalized relationship for flow in porous media. It shows the volumetric flow rate is a function of the flow area, elevation, fluid pressure and a proportionality constant. k A iQ ?Henry Philibert Gaspard Darcy (18031858) Being a pioneer, professor Casagrande worked on the fundamental problems of Soil Mechanics, such as soil classification, seepage through earth, and shear strength. It is safe to assume that the ALine on the plasticity chart is after Arthur”. Arthur Casagrande (19021981) Daniel Bernoulli 行走的土力學(xué)原理 沙灘騎車的土力學(xué)原理 David Macaulay, in his book underground (Houghton Mifflen, Boston, 1976), has illustrated the foundations and piping from the bottom up wi