Geotechnical evaluation of the alluvial soils for urban land management zonation in Gharbiya governorate, Egypt

Masoud, Alaa A.

doi:10.1016/j.jafrearsci.2014.10.009

Cited by 19 publications

(5 citation statements)

References 36 publications

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“…Successful stabilization of expansive soils greatly rely, therefore, on increasing the compressive strength by reducing the plasticity index and hence the swelling potential (e.g., ASTM, 2005). The unconfined compression strength correlate well with swelling potential (Masoud, 2015). Generally, UCS values increase upwards and areas having highest UCS (4.8 kg/cm2) show low swelling potential located beneath Quahafa and Al-Galaa street (Fig.…”

Section: Swelling Potentials and Compression Strengthmentioning

confidence: 61%

Subsurface Geological-Geotechnical 3D Modeling to Evaluate the Geohazard of the Alluvial Soils in Tanta Region, Egypt. GIS Approach

Masoud

Kamh

Elgharib

2016

Delta Journal of Science

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Geological and geotechnical information from 159 borehole in-situ-and lab-based measured plasticity, unconfined compression, and consolidation parameters for alluvial clays have been analysed. For this analysis, 3D models was prepared using VOXLER 3 software package. The prime objective was to spatially model the geotechnical variability and to derive the loading factors along with recognition of the distinctive geotechnical patterns. Results have been presented for the alluvial soils of Tanta region, Egypt with the principal geotechnical hazards in the main eight districts were identified. Plasticity charts indicated that the soils are inorganic cohesive highly plastic clays. Geotechnical parameters showed wide ranges evidenced by their large standard deviations. Al-Mahata and Quhafa areas are characterized by high plasticity soils. Quahafa and beneath Al-Galaa street areas showed the largest unconfined compression strength. Largest over-consolidation ratio and compression index values were recorded in Al-Mahata and Al-Emary areas, respectively. High natural water content areas match well with those where water table is closer to the ground surface in Quhafa and Al-Emary areas. The results of the employed approach can help to establish geohazard zonation 3D maps with construction favorability for safe urban expansions.

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Section: Swelling Potentials and Compression Strengthmentioning

confidence: 61%

Subsurface Geological-Geotechnical 3D Modeling to Evaluate the Geohazard of the Alluvial Soils in Tanta Region, Egypt. GIS Approach

Masoud

Kamh

Elgharib

2016

Delta Journal of Science

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“…The overlaps are also related to the fact that the physical parameters of sediments are strongly controlled by material properties and microfabric, such as lamination, orientation of clay layers, and syn-sedimentary deformation structures. The importance of clay mineralogy and the clay content as a control function of the physical properties such as density, Atterberg consistency limits and compressive strength of mudrocks were also emphasized by [38]. Carbonate content can also have a strong e ect on the strength and plasticity of hard soils-soft rocks [39].…”

Section: Resultsmentioning

confidence: 99%

The application of multivariate data analysis in the interpretation of engineering geological parameters

2016

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Abstract:The paper presents the evaluation of engineering geological laboratory test results of core drillings along the new metro line (line 4) in Budapest by using a multivariate data analysis. A data set of 30 core drillings with a total coring length of over 1500 meters was studied. Of the eleven engineering geological parameters considered in this study, only the ve most reliable (void ratio, dry bulk density, angle of internal friction, cohesion and compressive strength) representing 1260 data points were used for multivariate (cluster and discriminant) analyses. To test the results of the cluster analysis discriminant analysis was used. The results suggest that the use of multivariate analyses allows the identi cation of di erent groups of sediments even when the data sets are overlapping and contain several uncertainties. The tests also prove that the use of these methods for seemingly very scattered parameters is crucial in obtaining reliable engineering geological data for design.

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“…According to the work of Moufida El M. (2015), the spatial variability of geotechnical parameters, physical properties, and mechanical parameters of the quaternary alluvial deposits in Tunis City (Tunisia) has been evaluated detailed [5] . The same applies to the work of Masoud, Alaa, who also studied the geotechnical variability of the alluvial soils for urban land management zonation in Gharbiya governorate, Egypt in 2015 [6] . Vertical plate load tests, standard penetration tests, and traditional test pit borings were conducted by R. Z.…”

Section: Introductionmentioning

confidence: 87%

Effect of gradation on Macro-meso shear properties of the alluvial- diluvial soil-rock mixture (ADSRM)

Liu,

Fan,

Yao

et al. 2023

Preprint

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Alluvial-diluvial soil-rock mixture (ADSRM) is a special geological material, mainly composed of pebbles, gravel, and soils. Gradation design has a remarkable effect on improving the shear strength of ADSRM. Therefore, the N-method of gradation theory was applied to the gradation design of ADSRM fillers, and the influence of gradation on macro-meso shear properties of ADSRM samples was analyzed. Macro-mechanical test results show that the shear strength, the equivalent cohesion, and the friction angle of the graded sample are much higher than that of the ungraded sample, and the shear dilatancy of the graded sample is more obvious. Meso-shear properties indicate that the percentage of pore area of the graded sample is less than that of the ungraded sample, while the percentage of the number of the small pore to the total pore and the crushed rock blocks under the same normal stress are more than that of the ungraded sample. Pore abundance shows the shape of most pores on the shear plane is oblate, secondly, near-equiaxed, and the least long-strip. Finally, the percentage of pore area decreases gradually with the increase of the shear displacement, while the percentage of crushed rock block area increases first and then decreases, which can reflect the change of shear strength at different shear stages. The number of pores and broken rock blocks mainly affect the strength and equivalent cohesion of the filler, while the abundance, roundness, shape coefficient, and fractal dimension of rock block contour mainly affect the internal friction angle.

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Geotechnical evaluation of the alluvial soils for urban land management zonation in Gharbiya governorate, Egypt

Cited by 19 publications

References 36 publications

Subsurface Geological-Geotechnical 3D Modeling to Evaluate the Geohazard of the Alluvial Soils in Tanta Region, Egypt. GIS Approach

Subsurface Geological-Geotechnical 3D Modeling to Evaluate the Geohazard of the Alluvial Soils in Tanta Region, Egypt. GIS Approach

The application of multivariate data analysis in the interpretation of engineering geological parameters

Effect of gradation on Macro-meso shear properties of the alluvial- diluvial soil-rock mixture (ADSRM)

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