الفهرس 
Evaluation of geoenvironmental hazards with special emphasis on karst hazards in the area between Umm al Afaie and al khor, state of Qatar
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Abstract
The Eocene Carbonate bedrocks in the central-eastern coast of Qatar are characterized by heterogeneities in geotechnical setting due to wide spreading of subsurface Karst Cavities in different stratigraphic levels at all scales. Therefore, the present study attempts to construct a geological hazard potential map to quantify these karst cavities using the integration of different techniques of which are shallow seismic (MASW) survey and borehole coring.
To improve the interpretation certainty an applicable depth seismic wave velocity model was proposed. This model depends on correlation and integration of the velocity classes that revealed from the MASW profiles with the geological significance of nearby geotechnical verification boreholes.
The petrographic rock type and the hydro-structural condition seem to be the main causative factor controlling the karstification potentiality and consequently controlling the engineering rock quality. Based on the spatial integration of all contributing factors, most of the eastern (Lusail) and the south-eastern (Al Wakrah) sectors are prone to serious subsurface karst hazards. In this respect, it is strongly recommended to provide full integrated geotechnical data prior to any new developing project in these shoreline sectors.