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The engineering-physical basis of temperature regime regulation of ground massifs in northern construction |
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| Authors: | P I Melnikov V I Makarov A A Plotnikov |
| Institution: | a Permafrost Institute of the Siberian Branch of the Academy of Sciences of the USSR, Yakutsk, Russia b Moscow Engineering Construction Institute, Moscow, Russia |
| Abstract: | Artificial ground freezing at low temperatures provides a solution to such complicated problems as strengthening foundations, improvement of their reliability and the provision of the watertightness of the ground. Ground cooling and freezing directly changes the stress—deformation state of foundations and underground constructions. Basic diagrams on ways and means of forming low temperature frozen zones of a definite shape in the ground are given in the paper. Peculiarities of the work of the seasonally functioning heat-exchange devices and systems are discussed. The development and refinements of methods of calculation and long-term forecast of temperature fields in artificially cooled ground massifs is of great importance. Experimental data on migration phenomena in freezing soils and the methods of the numerical modeling of cooled massifs are discussed. The paper is illustrated by diagrams, test results and calculation data. |
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