TITLE:
Geotechnical Investigations and Estimation of Earthquakes Factors at an Industrial Qift City, Qena, Egypt
AUTHORS:
Hesham A. H. Ismaiel
KEYWORDS:
Earthquakes Factors, Standard Penetration Test, Shear Velocity
JOURNAL NAME:
Journal of Geoscience and Environment Protection,
Vol.6 No.12,
December
25,
2018
ABSTRACT: The present work dealt with the estimation of geotechnical parameters and
earthquakes factors of poultry feed factory project constructing at an industrial
Qift city, Qena, Egypt. The geotechnical parameters were including gradation
parameters, shear velocity (Vs), shear parameters (frictional angle and
cohesion), and allowable bearing capacity. The earthquakes factors were including
soil coefficient (S), limits of constant value for elastic response spectrum
(TB and TC), and specified value for begin of the constant displacement
spectrum (TD). The present study was interested also in an estimation of design
ground acceleration (ag). To achieve these objectives, five mechanical
wash boreholes were conducted at ten meter depth. Fifty disturbed samples
were collected. Geotechnical laboratory tests were carried out like grain size
analyses, direct shear box, and shear velocity (Vs). Standard penetration test
(SPT) as geotechnical field test was conducted. The results showed that the
studied soils were classified as well graded and poorly graded sands (SP and
SW) according to the unified soil classification system (USCS). The earthquakes
factors including S, TB, TC, and TD were 1.80, 0.10, 0.30, and 1.20 respectively.
The ag-value of the studied area was 0.10. According to Egyptian
code for vibration and dynamic load foundations, the studied project area
was classified as low potential seismic. According to Egyptian code for shallow
foundation, the allowable bearing capacity of the studied sands ranging
from 1.5 to 3 kg/cm2 at shallow foundation width must be not less than one
meter. Shallow foundations like isolated footing or structural mat were recommended.