الفهرس | Only 14 pages are availabe for public view |
Abstract During the Earthquake of October 12, 1992, in Dahshour, near Cairo, Egypt, extensive damage to engineering structures occured as a results of liquefaction and densification of the sandy soil on which they were supported. At El-Aiiat and the surrounding villages, liquefaction had taken place in a form of ”sand fountains” and excessive settlement in a major highway. In this search, laboratory test programme was prepared to perform the laboratory tests and the exprimental studies concerning the behavior of sand under seismic effect (cyclic loading effect). a simple shear device and a shaking table were locally fabricated and used for this experimental study. Different parameters, such as relative density, base acceleration, frequency, percentage of fine, and shear strain amplitude, were changed to study its effect on both liquefaction and densification of three different soil samples. Conclusions and recommendations were listed at the end of this search. |