Database of Dynamic Soil Properties for Most Iraq Soils

Qassun Sa'ad Al-Deen Mohammed Shafiqu, Murtadha A. Abdulrassol

Abstract


Earthquakes in Iraq has become a better knowledge after 1900 for amounts ranged from 2.7 to 7.2 ML within geographical boundary of the seismicity map of Iraq with a majority of crustal depth shocks ,there is a general characteristic and an increase in seismic activity in Iraq from the south to north and from west to east. Due to the location of Iraq on one side of the Arabian tectonic plate which earthquakes existed.The analysis of foundation vibrations and geotechnical earthquake engineering problems in civil engineering requires characterization of dynamic soil properties using geophysical methods. Dynamic structural analysis of the superstructures also requires knowledge of the dynamic response of the soil-structure, which, in turn relies on dynamics soil properties. The main objective in this study is to prepare a geotechnical and geophysics properties to build a database for different zones in Iraq (North, Eastern North, Western North, Middle, West, East, Western south, Eastern south and South) and different soils. From the data collected it has been observed that the average shear wave velocities were ranged from (274-1467) m/s in the North, (145-733) m/s in the Eastern North, (292-701) m/s in the Western North , (111-507) m/s in the Middle, (372-398) m/s in the East, (257,1164)m/s in the West, (198, 659) in the Western South, (111,420) in the Eastern South, (102,627) in the South of Iraqand The average compression wave velocities were ranged from (8077-2902) m/s in the North, (514-2606) m/s in the Eastern North, (714-1335) m/s in the Western North , (322-1544) m/s in the Middle, (976-1076) m/s in the East, (730,2835)m/s in the West, (198, 1659) in the Western South, (377,1167) in the Eastern South, (294,1811) in the South of Iraq.


Keywords


Earthquakes; seismic activity zone ; Iraq ; soil properties; compression wave velocities; ear wave velocities ; geotechnical earthquake engineering.

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References


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