Arid and hot climatic conditions influence the development of surficial (superficial) sediments by aggravating the desiccation and weathering processes. Such environmental factors promote the occurrence of expansive soils in the Middle East. This study deals with the nature and extent of expansive soil problems in major development areas of Saudi Arabia where severe damage has been experienced in numerous projects. The expansive soils primarily consist of shales of Tertiary age which occur in a narrow strip adjacent to the western boundary of the Arabian Shield. Profile characteristics, geotechnical properties and swell behaviour of the shales are presented. Model equations were developed by nonlinear regression analysis for prediction of swell parameters from easily determined geotechnical indices.


Superficial deep-water sediments of the Eastern Marmara Basin
Evans, G.; Erten, H.; Alavi, S. N.; Von Gunten, H. R.; Ergin, M. (Springer Science and Business Media LLC, 1989-3)
Superficial sediments (top ∼ Im) of the Eastern Mediterranean Basin, Sea of Marmara, Turkey accumulated rapidly (0.087 ± 0.012 g/cm2 · y) by hemipelagic sedimentation with only limited amounts of gravity flow or bottom current action under low oxygenated but not anoxic conditions. They have restricted faunas, relatively higher organic carbon (1–1.8%) and lower calcium carbonate (14–20%) contents than other Eastern Mediterranean Basin sediments. Sedimentation shows little change over the last millenium excep...
Prediction of input energy spectrum: attenuation models and velocity spectrum scaling
Alici, F. S.; Sucuoğlu, Haluk (Wiley, 2016-10-25)
Recent improvements in performance-based earthquake engineering require realistic description of seismic demands and accurate estimation of supplied capacities in terms of both forces and deformations. Energy based approaches have a significant advantage in performance assessment because excitation and response durations, accordingly energy absorption and dissipation characteristics, are directly considered whereas force and displacement-based procedures are based only on the maximum response parameters. En...
Numerical modeling of seawater groundwater relationships in the Selçuk sub basın, İzmir Turkey
Hassan, Abubakr; Çamur, Mehmet Zeki; Department of Geological Engineering (2004)
Seawater-fresh groundwater natural equilibrium conditions in the aquifers of the Selçuk sub-basin may be disturbed by the discharge occurred during the past 30 years in order to supply water for irrigation and domestic purpose usage. Two dimensional density dependent cross sectional saturated flow and solute transport simulations were carried out to determine whether seawater intrusion has occurred in the Selçuk sub-basin due to the imposed discharge or the determined salt-water in the western section of th...
NURTUG, A; Sucuoğlu, Haluk (Wiley, 1995-09-01)
A simple analytical procedure is developed for calculating the seismic energy dissipated by a linear SDOF system under an earthquake ground excitation. The ground excitation is specified by its pseudo-velocity spectra and effective duration whereas the SDOF system is defined by its natural period of vibration and viscous damping ratio. However, the derived relationship for the energy dissipation demand under an earthquake excitation is sensitive neither to the viscous damping ratio nor the ductility ratio w...
Use of waste pyrite as an alternative to gypsum for alkaline soil amelioration
TOZSİN, Gülşen; Arol, Ali İhsan; ÇAYCI, GÖKHAN (Informa UK Limited, 2015-05-04)
The reclamation of alkaline soils is of great interest especially in arid and semi-arid climatic regions of the world. The aim of this study was to investigate the application of pyrite from the waste materials of a copper concentration plant as an alternative to gypsum application for alkaline soil amelioration. The second aim was to assess heavy metal contamination. Waste pyrite (FeS2) obtained from a copper concentration plant and pure gypsum (CaSO4 center dot 2H(2)O) were added to soil within the column...
Citation Formats
A. EROL and A. DHOWIAN, “SWELL BEHAVIOR OF ARID CLIMATE SHALES FROM SAUDI-ARABIA,” QUARTERLY JOURNAL OF ENGINEERING GEOLOGY, pp. 243–254, 1990, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/65745.