ABSTRACT Soils are unconsolidated materials that are result of weathering and erosion process of rocks. When water content of some soils change, it makes problems to civil activities. These problems include swelling, dispersing and collapse. The change of water content of expansive soils causes to changes their volume. The volume change can damage structures that have built on the soils. In dispersive soils, particles move through soils with water flow. It may be conduits form in the soils. Collapsible soils are settled when saturated under loading. The rapid collapse of soils damages the structures which have built on soil. Problematic soils are formed in especial geological conditions. For example, collapsible soils are often founded in semi-arid area. Field observation and laboratory test can be useful to identify problematic soils. Some properties of soils such as dry density and liquid limit are helpful to estimate collapsibility potential of soils. In this regard, it was done a series laboratory tests to evaluate the collapsibility rate.
Cite this paper
M. Rezaei, R. Ajalloeian and M. Ghafoori, "Geotechnical Properties of Problematic Soils Emphasis on Collapsible Cases," International Journal of Geosciences, Vol. 3 No. 1, 2012, pp. 105-110. doi: 10.4236/ijg.2012.31012.
 D. F. McCarthy, “Essential of Soil Mechanics and Foundations,” Prenticle Hall, Upper Saddle River, 2006.
 R. Briscolland and R. Chown, “Problem Soils: A Review from a British Perspective,” Proceeding of Problematic Soils Conference, Nottingham, 8 November 2001, pp. 53- 66.
 F. G. Bell, “Engineering Geology,” Elsevier, Waltham, 2007.
 M. Yenes, J. Nespereira, J. A. Blanco, M. Suárez, S. Monterrubio and C. Iglesias, “Shallow Foundations on Expansive Soils: A Case Study of the El Viso Geotechnical Unit, Salamanca, Spain,” Bulletin of Engineering Geology and the Environment, Vol. 71, No. 1, 2010, pp. 51-59.
 M. Ozer, R. Ulusay and N. S. Isik, “Evaluation of Damage to Light Structures Erected on a Fill Material Rich in Expansive Soil,” Bulletin of Engineering Geology and the Environment, 2011, pp. 1-16.
 R. E. Hunt, “Characteristics of Geologic Materials and Formations (A Field Guide for Geotechnical Engineers),” Taylor & Francis, London, 2007.
 F. G. Bell, “Engineering Properties of Soils and Rocks,” Blackwell Science, Oxford, 2000.
 T. S. Umesh, S. V. Dinesh and P. V. Sivapullaiah, “Characterization of Dispersive Soils,” Materials Sciences and Applications, Vol. 2, No. 6, 2011, pp. 629-633.
 F. G. Bell and M. G. Culshaw, “Problem Soils: A Review from a British Perspective,” Proceeding of Problematic Soils Conference, Nottingham, 8 November 2001, pp. 1- 37.
 A. Tarantino, E. Romero and Y. J. Cui, “Laboratory and Field Testing of Unsaturated Soils,” Springer Science, New York, 2009. doi:10.1007/978-1-4020-8819-3
 T. Walthman, “Foundation of Engineering Geology,” Spon Press, London, 2009.
 A. Jotisankasa, “Collapse Behavior of a Compacted Silty Clay,” Ph.D. Thesis, Imperial College, London, 2005.
 G. Bolzon, “Collapse Mechanisms at the Foundation In- terface of Geometrically Similar Concrete Gravity Dams,” Engineering Structures, Vol. 32, No. 3, 2010, pp. 1304-1311. doi:10.1016/j.engstruct.2010.01.008
 S. H. Liua, D. A. Sun and Y. Wang, “Numerical Study of Soil Collapses Behavior by Discrete Element Modeling,” Computers and Geotechnics, Vol. 30, No. 3, 2003, pp. 399-408. doi:10.1016/S0266-352X(03)00016-8
 B. M. Das, “Principles of Geotechnical Engineering,” Thomson, New York, 2009.
 S. Azam, “Collapse and Compressibility Behavior of Arid Calcareous Soil Formations,” Bulletin of Engineering Ge- ology and the Environment, Vol. 59, No. 3, 2000, pp. 211- 217. doi:10.1007/s100640000060
 M. R. Yakov, “Influence of Physical Properties on Deformation Characteristics of Collapsible Soils,” Engineer- ing Geology, Vol. 92, No. 1-2, 2007, pp. 27-37.