If the problem is so slow that all acceleration forces are found to be negligible, the consolidation equations are obtained as follows. These equations are identical to the previous equations (1) but with terms containing "ü" omitted in equations 1.a and 1.b. In the study of the very slow phenomenon of soil consolidation, it is often desirable to follow a dynamic analysis to the subsequent consolidation behaviour. Past experiences have shown that the collapse of earthdams and foundations on occasion does not take place until a few minutes or even hours after the main shock.

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