Physical and chemical genesis of swell and osmotic shrinkage of clay soils in construction’s base by results of experimental researches
About authors
- 1 — Ph.D., Dr.Sci. professor National Mineral Resources University (Mining University)
- 2 — Ph.D. associate professor National Mineral Resources University (Mining University)
Abstract
The effect of physical-chemical and chemical factors on peculiarities of swell and osmotic shrinkage of clay provided to unmembrane’s effect is analyzed. It is demonstrate that the genesis of swell due to water inflow in soil and its outflow is principally different and depends on different correlation of clay pore water concentration (Сп) and solutions filter-passing (Сф). The balance equations for five types of swells are adduced. The experimental researches are allowed to obtain the equation for calculation of solution concentration (boundary of osmotic shrinkage Споу). The exceeding of Споу leads to osmotic shrinkage of clay formation. The conclusion of strength and deformation capacity of clay by swell and shrinkage is gained.
Область исследования:
(Archived) Geology and metallogeny
Keywords:
clay soils
membrane’s effect
concentrate of solution
law of diffusion
boundary of osmotic shrinkage
swell
swell pressure
adsorption
strength
deformation capacity
Funding:
None
References
- Smirnov S.I. The genesis of salinity of underground water of sedimentary basin. Moscow: Nauka, 1971. P.210.
- Chizik V.I. The analysis of microstructure of electrolytes solutions by the method of nuclear magnetic relaxation: Research Paper...Dr. in phys . and math. Leningrad : State University, 1981. 40 р.
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