GRANULOMETRIC AND MICROAGGREGATE COMPOSITION OF GROUND IN THE SEASONAL THAW LAYER AND ITS FLUID PROPERTIES
In the area of the occurrence of perennially frozen rocks, in the layer of summer thawing, there are accomplished the processes of physical erosion, leading to the formation in the soils of primary silty particles, and also the unique but extensive physical-chemical, chemical and microbiological pro...
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ftdtic:AD0711917 2023-05-15T16:37:51+02:00 GRANULOMETRIC AND MICROAGGREGATE COMPOSITION OF GROUND IN THE SEASONAL THAW LAYER AND ITS FLUID PROPERTIES Poltev,N. F. COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H 1970 text/html http://www.dtic.mil/docs/citations/AD0711917 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0711917 en eng http://www.dtic.mil/docs/citations/AD0711917 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Soil Mechanics Snow Ice and Permafrost (*SOILS EROSION) PHYSICAL PROPERTIES CHEMICAL PROPERTIES MELTING MICROSTRUCTURE DEPOSITS ORGANIC MATERIALS CALCIUM COMPOUNDS ABSORPTION COLLOIDS MONTMORILLONITE USSR HYGROSCOPICITY TRANSLATIONS TUNDRA Text 1970 ftdtic 2016-02-18T23:44:55Z In the area of the occurrence of perennially frozen rocks, in the layer of summer thawing, there are accomplished the processes of physical erosion, leading to the formation in the soils of primary silty particles, and also the unique but extensive physical-chemical, chemical and microbiological processes, as is evidenced by: The presence of a large quantity of secondary silty particles (microaggregates), having formed during the freezing of the soils as a result of the coagulation of the organic and mineral colloids; a sufficiently large absorbing complex of the soils in the North; the presence in their mineralogical composition, of secondary minerals; the intensive processes of gleying, causing the peptization of the previously formed microaggregates and a seasonal variation in the value of the absorbing aggregation of the soils. The gleying processes are accompanied by the formation of a considerable amount of hydrophilic organic and mineral colloids, which under conditions of oversaturation promote the development of the thixotropic structure of the soils. The thixotropic soils during a mechanical effect (mixing, shaking) convert to a quicksand state; it is necessary to take this into account in an engineering-geological evaluation of these soils. (Author) Trans. of Merzlotnye Issledovaniya (USSR) n3 p289-306 1963. Text Ice permafrost Tundra Defense Technical Information Center: DTIC Technical Reports database |
institution |
Open Polar |
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Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Soil Mechanics Snow Ice and Permafrost (*SOILS EROSION) PHYSICAL PROPERTIES CHEMICAL PROPERTIES MELTING MICROSTRUCTURE DEPOSITS ORGANIC MATERIALS CALCIUM COMPOUNDS ABSORPTION COLLOIDS MONTMORILLONITE USSR HYGROSCOPICITY TRANSLATIONS TUNDRA |
spellingShingle |
Soil Mechanics Snow Ice and Permafrost (*SOILS EROSION) PHYSICAL PROPERTIES CHEMICAL PROPERTIES MELTING MICROSTRUCTURE DEPOSITS ORGANIC MATERIALS CALCIUM COMPOUNDS ABSORPTION COLLOIDS MONTMORILLONITE USSR HYGROSCOPICITY TRANSLATIONS TUNDRA Poltev,N. F. GRANULOMETRIC AND MICROAGGREGATE COMPOSITION OF GROUND IN THE SEASONAL THAW LAYER AND ITS FLUID PROPERTIES |
topic_facet |
Soil Mechanics Snow Ice and Permafrost (*SOILS EROSION) PHYSICAL PROPERTIES CHEMICAL PROPERTIES MELTING MICROSTRUCTURE DEPOSITS ORGANIC MATERIALS CALCIUM COMPOUNDS ABSORPTION COLLOIDS MONTMORILLONITE USSR HYGROSCOPICITY TRANSLATIONS TUNDRA |
description |
In the area of the occurrence of perennially frozen rocks, in the layer of summer thawing, there are accomplished the processes of physical erosion, leading to the formation in the soils of primary silty particles, and also the unique but extensive physical-chemical, chemical and microbiological processes, as is evidenced by: The presence of a large quantity of secondary silty particles (microaggregates), having formed during the freezing of the soils as a result of the coagulation of the organic and mineral colloids; a sufficiently large absorbing complex of the soils in the North; the presence in their mineralogical composition, of secondary minerals; the intensive processes of gleying, causing the peptization of the previously formed microaggregates and a seasonal variation in the value of the absorbing aggregation of the soils. The gleying processes are accompanied by the formation of a considerable amount of hydrophilic organic and mineral colloids, which under conditions of oversaturation promote the development of the thixotropic structure of the soils. The thixotropic soils during a mechanical effect (mixing, shaking) convert to a quicksand state; it is necessary to take this into account in an engineering-geological evaluation of these soils. (Author) Trans. of Merzlotnye Issledovaniya (USSR) n3 p289-306 1963. |
author2 |
COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H |
format |
Text |
author |
Poltev,N. F. |
author_facet |
Poltev,N. F. |
author_sort |
Poltev,N. F. |
title |
GRANULOMETRIC AND MICROAGGREGATE COMPOSITION OF GROUND IN THE SEASONAL THAW LAYER AND ITS FLUID PROPERTIES |
title_short |
GRANULOMETRIC AND MICROAGGREGATE COMPOSITION OF GROUND IN THE SEASONAL THAW LAYER AND ITS FLUID PROPERTIES |
title_full |
GRANULOMETRIC AND MICROAGGREGATE COMPOSITION OF GROUND IN THE SEASONAL THAW LAYER AND ITS FLUID PROPERTIES |
title_fullStr |
GRANULOMETRIC AND MICROAGGREGATE COMPOSITION OF GROUND IN THE SEASONAL THAW LAYER AND ITS FLUID PROPERTIES |
title_full_unstemmed |
GRANULOMETRIC AND MICROAGGREGATE COMPOSITION OF GROUND IN THE SEASONAL THAW LAYER AND ITS FLUID PROPERTIES |
title_sort |
granulometric and microaggregate composition of ground in the seasonal thaw layer and its fluid properties |
publishDate |
1970 |
url |
http://www.dtic.mil/docs/citations/AD0711917 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0711917 |
genre |
Ice permafrost Tundra |
genre_facet |
Ice permafrost Tundra |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/AD0711917 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766028142904868864 |