Lyell Collection
Quarterly Journal of Engineering Geology and Hydrogeology
Lyell Centre  |   Lyell Collection  |   Subscriptions   |   Geological Society  |   Email alerts  |   Online bookshop  |   Help

Keywords:
Author:
Advanced search>>
This Article
Right arrow Figures Only
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow Request Permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Web of Science (1)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Fakher, A.
Right arrow Articles by Khamechiyan, M.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation
Quarterly Journal of Engineering Geology and Hydrogeology; 2007; v. 40; issue.2; p. 163-174;
DOI: 10.1144/1470-9236/06-029
© 2007 Geological Society of London

The addition of geotechnical properties to a geological classification of coarse-grained alluvium in apediment zone

A. Fakher1, A. Cheshomi2 & M. Khamechiyan2

1 1Tehran University, Civil Engineering Faculty, PO Box 11365-4563, Tehran, Iran (e-mail: afakher@ut.ac.ir)
2 2Tarbiat Modarres University, Engineering Geology Department, Tehran, Iran

The city of Tehran is founded on Quaternary alluvium, which has been geologically classified by Rieben. The city is located at the foot of the Alborz Mountain Range, which is basically composed of Eocene pyroclastic deposits (green tuff) and other volcanic rocks. The geology and the morphology of the Tehran region is similar to that for other cities located at the foot of mountains. Rieben divided the Tehran alluvia into four categories, identified as A, B, C and D (from oldest to youngest). In the Rieben geological classification system, which is widely used in Iran, the age and general geological characteristics of alluvia are considered, rather than engineering properties. The Rieben and other geological classification systems are described in this paper and geological factors that affect the geotechnical characterization of the Tehran alluvium are discussed. Because of the nature of the Tehran soils, undisturbed samples for laboratory testing are difficult to obtain and the execution of large-scale in situ tests is difficult, expensive and not practical for the majority of construction sites. Accordingly, a geological–geotechnical classification system is required to assess the engineering properties of coarse-grained soils for use in small to medium-sized construction projects. To determine the geotechnical properties of the Tehran alluvia, a number of in situ tests have been undertaken. The test results have been compared with published research results and the Rieben classification system has been extended to cover geotechnical properties. A similar framework could be used to create local geotechnical–geological classification systems of other coarse alluvia in other locations.

Key Words: Tehran alluvium • Rieben classification • geotechnical properties • coarse-grained alluvium • in situ test




This article has been cited by other articles:


Home page
 Quarterly Journal of Engineering Geology and HydrogeologyHome page
A. Cheshomi, A. Fakher, and C.J.F.P. Jones
A correlation between friction angle and particle shape metrics in Quaternary coarse alluvia
Quarterly Journal of Engineering Geology and Hydrogeology, 2009; 42: 145 - 155.
[Abstract] [Full Text] [PDF]