Geotechnical Behavior of Pliocene Sedimentary Rocks Exposed along Qena-Safaga Road at Qena region, Egypt

Ismaiel, Hesham A. H.; Makhloof, Afaf A.; Mahmoud, Atif A.; Galal, A.

doi:10.5923/j.mining.20120102.10

Cited by 6 publications

(3 citation statements)

References 8 publications

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“…Engineering geophysical researches were conducted by (Ismail, 2000), and (Basher, 2003). Few geotechnical studies were carried out by (Wuest & McLane, 2000), (Ismaiel et al, 2011), (Ismaiel et al, 2012), and (Ismaiel, 2013).…”

Section: Previous Workmentioning

confidence: 99%

Geotechnical Investigations and Estimation of Earthquakes Factors at an Industrial Qift City, Qena, Egypt

Ismaiel¹

2018

GEP

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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 (T B and T C), and specified value for begin of the constant displacement spectrum (T D). The present study was interested also in an estimation of design ground acceleration (a g). 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, T B , T C , and T D were 1.80, 0.10, 0.30, and 1.20 respectively. The a g-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/cm 2 at shallow foundation width must be not less than one meter. Shallow foundations like isolated footing or structural mat were recommended.

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Section: Previous Workmentioning

confidence: 99%

Geotechnical Investigations and Estimation of Earthquakes Factors at an Industrial Qift City, Qena, Egypt

Ismaiel¹

2018

GEP

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“…The study area was geologically investigated by many authors such as [2]- [15], and others. Few engineering and geotechnical investigations were conducted on the studied area like engineering geophysical study to evaluate the geotechnical behavior of the soils at Tiba city [16], investigation of rock deterioration in the Royel Tomb of Seti I, Valley of The Kings, Luxor [17], engineering geophysical study at New Qena city north the study area [18], engineering classification of the soils exposed along Upper Egypt-Red Sea road north of the study area [19], geotechnical evaluation study of Pliocene sedimentary rocks exposed along Qena-Safaga road north of the study area [20], and geotechnical evaluation of the sub-grade soils at the Cemeteries area, New Tiba city [21].…”

Section: Previous Workmentioning

confidence: 99%

Geotechnical Investigations of Sub-Grade Soils at the Connector Road, New Tiba City, Luxor, Egypt

Ismaiel¹

2018

OJG

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The presented study dealt with geotechnical investigations on the sub-grade soils along the connector road between the electrical transformer station and the industrial city, New Tiba city, Luxor, to classify these soils and to examine their geotechnical behavior and their proportionality for constructing the road at the study area. One of the most important aims of this work was to determine the problematic sub-grade soils and to recommend the suitable reclamation. To achieve these goals sixty disturbed samples from six mechanical wash drilling boreholes and three undisturbed samples from three open pits were collected. The studied soils were belonged to Quaternary age. Gradation parameters (coefficient of uniformity, Cu and coefficient of concavity, Cc), plasticity, California bearing ratio (CBR), proctor density and free swelling percent of the studied soils were measured. PH-value, dissolved chloride, dissolved sulfate, calcium carbonate, total carbonate, and total dissolved salts were determined. The results pointed that the studied Quaternary soils along the study road were mainly composed of gravels, sands and clayey sands. The studied gravels were classified as poorly graded gravels (GP) according to Unified Soil Classification System (USCS) and as A-1-b according to American Association of State Highway and Transportation Official (AASHTO). The studied sands were classified as well graded sands (SW) according to USCS and as A-1-a according to AASHTO. The results showed also that the sub-grades at boreholes no. 1, 3, 4, 5, and 6 were excellent to good and the sub-grade at boreholes no. 2 was fair to poor. Free swelling percent of the studied clayey sand soils was ranging from 30% to 80% and they were classified as low to medium grade expansive soil. Replacement and/or chemical stabilization (using lime and/or cement kiln dust) of the problematic clayey sands soils were suggested to reduce their swelling and to prevent the possible heave. How to cite this paper: Ismaiel, H.A.H.

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“…In Qena area, the Durri Formation is composed of lacustrine deposits that consist of mudstones, limestones and marls (Sadek 1959;Tateo et al 2000). This layer was considered to be problematic due to its clay content, in which might led to engineering problems such as swelling (Ismaiel et al 2012;Makhloof et al 2013;Elbeih and Soliman 2015). The layer was also proved to be responsible for the fractures that cut through Qena-Safaga Road from KM 18 to KM 32 (Ibrahim 2012;Ibrahim et al 2017;Abdel Gowad et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Investigations of the shallow bedrock using the seismic refraction method – A case study in New Qena City, Eastern Desert, Egypt

Gowad,

El-Haddad,

Aglan

et al. 2023

Preprint

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The seismic refraction technique has demonstrated its efficiency as a cost-effective geophysical approach for bedrock investigation, which is very important for major construction projects. In the eastern part of New Qena City, along Qena-Safaga Road in the Eastern Desert of Egypt, construction of many domestic facilities is planned. Therefore, a prior site investigation focusing on bedrock is required to validate the site for construction and other projects. In this study, a site investigation of the eastern part of New Qena City is conducted using the seismic refraction method to estimate the depth and thickness of the bedrock and to present the surface structural features affecting the area. Ten seismic refraction profiles were measured in the area. The results of tomographic modeling show that the bedrock consists of three layers, with the bedrock represented by the mudstone unit of the Pliocene Durri Formation. This layer is located at a shallow depth and varies in thickness in the area. The seismic velocity sections show that the layer is characterized by relatively low velocities as well as lateral velocity variations. This is interpreted to be due to the clay content of the layer, the high degree of fracturing, and the lateral facies variation. Therefore, the layer could undergo geotechnical problems that could affect future construction projects in the area. Four subsurface faults were also detected in the velocity sections created by the tomographic inversion.

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Geotechnical Behavior of Pliocene Sedimentary Rocks Exposed along Qena-Safaga Road at Qena region, Egypt

Cited by 6 publications

References 8 publications

Geotechnical Investigations and Estimation of Earthquakes Factors at an Industrial Qift City, Qena, Egypt

Geotechnical Investigations and Estimation of Earthquakes Factors at an Industrial Qift City, Qena, Egypt

Geotechnical Investigations of Sub-Grade Soils at the Connector Road, New Tiba City, Luxor, Egypt

Investigations of the shallow bedrock using the seismic refraction method – A case study in New Qena City, Eastern Desert, Egypt

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