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sand saturated with water from anabatic sources and capable, consequently, of sucking down objects, animals, and humans falling into it. There are many kinds of quicksand, but all types lack an admixture of silt. Owing to the thin film of water enveloping the grains of sand, adhesion between them is sharply reduced, and quicksand behaves almost like a liquid: submersion of a foreign body continues until the weight of the sand displaced by it is equal to the weight of the body itself. Quicksand is generally confined to the shores of seas, lakes, and rivers (where anabatic sources are usually found), but may occur far from shores in both plains and mountains.
water-saturated earth that is able to flow and shift.
Quicksand may be loose or fairly loose sandy loam, finegrained and powdery loose sand, or soil containing colloidal particles less than 0.001 mm in size that act as a lubricant. Quicksand containing colloidal particles is termed true quicksand, according to the classification of the Soviet scientist A. F. Lebedev (1935). The properties of false quicksand, on the other hand, are manifested only under considerable hydrodynamic pressure of the water filtering through it. True quicksand expands greatly when frozen, has low filterability, and becomes cohesive when it dries; microorganisms play a major role in its formation.
Quicksand is controlled by drainage. True quicksand is slow to yield water and therefore vacuuming and electrical drainage are used in draining it. For draining false quicksands, needle filters and tubular wells are used. A soil’s “quick” condition becomes revealed under dynamic stress and with the development of hydrodynamic pressure in the water saturating the soil. The properties of quicksand are taken into consideration in construction and mining projects that make use of shields and caissons and the method of freezing the soil.
M. V. MALYSHEV
What does it mean when you dream about quicksand?
Quicksand may symbolize losing one’s footing and sinking into the quicksand of one’s emotions or the unconscious. Dreaming about being in quicksand may reflect circumstances in the business or personal life of the dreamer that are beyond the dreamer’s control.