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.
Highlights
Industrial Qift city is one of the new industrial cities in Qena governorate; it was constructed to collect all the industrial activates in Qena region to encourage the investment and to contribute in the development of Qena city (Figure 1 & Figure 2)
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
From the surface to one to two meter depth, the soils composed of poorly graded sands, and from two meter depth to ten meter depth composed of well graded sands (Figure 5)
Summary
Industrial Qift city is one of the new industrial cities in Qena governorate; it was constructed to collect all the industrial activates in Qena region to encourage the investment and to contribute in the development of Qena city (Figure 1 & Figure 2). The local geological conditions and shallow shear wave velocity structure of a site have a significant effect on earthquake ground motion. Some areas in Egypt have been struck by significant earthquakes causing considerable damage Such events were interpreted as the result of this interaction (Sawires, et al, 2016). The present work is a try to deep understand the site effect including the soil type and its geotechnical behavior and its role in the seismic hazards assessment of the building construction at the study area. The construction of large projects and factories needs to evaluate the geotechnical behavior of the soils in the study area as well as to estimate the seismic hazard including the earthquakes factors and design ground acceleration. The factory was designed only of two floors; it is considered as lightly loaded building (Figure 3)
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