MAPPING REMOVAL SWELLING CLAY SOILS IN THE AURES (N’GAOUS) ALGERIA
| Autor: | Rahmani MOUNA, Baheddi MOHAMED, Mahdi KALLA |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Analele Universităţii din Oradea: Seria Geografie, Vol 26, Iss 2, Pp 143-152 (2016) |
| Druh dokumentu: | article |
| ISSN: | 1221-1273 2065-3409 |
| Popis: | The shrinkage and swelling phenomena of certain clay soils cause differential settlement manifested by disorders that affect mainly the individual frame. The objective of this research was to create a map related to these phenomena especially in the area of Algeria N’gaous (figure 1). The approach of the study is primarily based firstly on the interpretation of a geological map at a scale 1 : 50 000 and on the other part from existing literature and observations on a synthesis of a large number of geotechnical information to determine susceptibility to the phenomenon of clay or marl formations. This approach consisted in the establishment of a synthetic departmental mapping of these formations that have been identified from a hierarchy as to their susceptibility according to the shrinkage and swelling phenomenon. This classification was established on the basis of three quantifiable main features: the dominant lithology of formations, the mineralogical composition of their clay fraction (proportion of swelling minerals) and geotechnical behavior (primarily assessed from the blue value and the plasticity index). |
| Databáze: | Directory of Open Access Journals |
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