UIS Commission on Karst Hydrogeology and Speleogenesis
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Glossary

Glossary of Karst and Cave Terms

consolidation
1. The binding of grains by cementing material to solid matrix [16]. 2. The gradual reduction in the water content (void ratio) of a saturated soil, as a result of an increase in the pressure acting on it, because of the addition of overlying sediments or the application of an external load. A laboratory test commonly known as a one-dimensional consolidation test (odometric test), is performed consolidation, cv usually expressed in cm2/sec, is calculated as the ratio where K is the hydraulic conductivity, on soil samples to evaluate consolidation. From such a test, the coefficient of mv is the coefficient of volume compressibility, and ?w is the unit weight of water. The theory of consolidation leads to a relation between degree of consolidation and time: In this expression U is the degree of consolidation or the percentage of total consolidation occurring in some time t; cv is the coefficient of consolidation; and H is half of the sample's thickness when the odometric test is performed [21].