الفهرس 
Liquefaction of Sandy Soil (Literature Review)Only 14 pages are availabe for public view
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Abstract
Damage resulting from liquefaction of saturated sands is one of the
major geotechnical engineering problems during earthquakes.
Different soil improvement techniques have been used to mitigate
liquefaction hazards. Installation of gravel drains (stone piles) is
one of the economical and effective soil improvement techniques .
In this research, an extensive experimental studies have been
carried out to establish the effect of gravel drains on liquefaction
potential of liquefiable sand deposits. Shaking table apparatus of
Ain Shams University was employed to perform the desired
studies, using a large scale pin (110 x 110 x 70cm).
Experimental modeling tests were divided into two groups. The
first group concerns studying the effect of gravel drains on the
behavior of modeled multistory building. The second group focuses
on studying the stability of underground tanks, under the effect of
water pressure mobilization due to dynamic loading. Parametric
experimental model studies have been carried out to investigate the
effect of pile diameter, pile length, arrangement of piles, spacing
between piles and base acceleration of the exciting motion. Results
of the model tests were utilized to identify the main features of the
response of the liquefiable sand for the two practical problems of
multistory structures and underground tanks, and their interaction
with these deposits.