Numerical Modelling of Slope Stability in Open Pit Phosphate Mines, Algeria: A Comparative Study

Fredj, Mohamed; Hafsaoui, A.; Boukarm, Riadh; Nakache, Radouane; Saadoun, Abderrazak

doi:10.1088/1755-1315/221/1/012020

Cited by 8 publications

(3 citation statements)

References 5 publications

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“…100 m high [Mezam and Assed, 2017]. The geology of this deposit is mainly composed of a succession of Ypresian flint dolomitic limestone, locally overlain by Lutetian limestone, Miocene sands and Quaternary Alluvium [Fredj et al, 2019;Rais et al, 2017].…”

Section: General Settingmentioning

confidence: 99%

Application of electrical tomography technique for landslide investigation: Case of the Kef Essenoun phosphate deposit, Djebel Onk (Northeastern Algeria)

Salah,

Ismail,

Mohamed Cherif

2023

Russian Journal of Earth Sciences

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The enormous development of the technology of raw material extraction drives the economic companies and technicians to make efforts to meet the needs of consumers. These efforts directly influence the nature, creating voids or cavities in the soil and subsoil inducing a structure disturbance and subsequently giving damages. A landslide of the Kef Essenoun phosphate deposit occurred in 2007 when large mass of rocks detached caused a number of undesired and negative effects. To analyze this deformation, a two-dimensional (2D) electrical tomography with the Wenner and Schlumberger device was deployed, using equipment of Syscal Pro 48 type for the implementation of an electrical profile, through a transect length of 140 m with electrode spacing of 3m and a depth of investigation that measures 32 m to the center. Data processing was carried using out RES2DINV software and the results allowed to map visible cracks of a high resistivity value of 890 Ωm as well as low values of 6 Ωm for marls and clays. In addition, phenomena have been evidenced due to tectonic (rough terrain) on one side and sliding on the other.

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Section: General Settingmentioning

confidence: 99%

Application of electrical tomography technique for landslide investigation: Case of the Kef Essenoun phosphate deposit, Djebel Onk (Northeastern Algeria)

Salah,

Ismail,

Mohamed Cherif

2023

Russian Journal of Earth Sciences

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“…Studies have proved and confirmed that this operation is the most energyintensive. Currently, the labor intensity is significant and accounts for more than 50% of the total costs in the technology of compound feeds preparation in agricultural production [4,5]. For feed grain grinding in forage preparation, commercially available hammer crushers are the most common.…”

Section: Introductionmentioning

confidence: 99%

Theoretical Description of Caryopsis Segment Motion in Feed Grain Shredder with Curved Cutting Elements

Sabiev¹,

Demchuk²,

Myalo³

et al. 2020

Proceedings of the International Scientific Conference the Fifth Technological Order: Prospects for the Development and Moderni

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A theoretical description of the motion of the caryopsis segment in the channel of the working body of the proposed feed grain shredder with curved cutting elements is presented. A system of differential equations is proposed that determines the required value of the channel necessary and sufficient to rotate the caryopsis segment by the cut plane to the cutting plane. According to the results of numerical solution of the presented system of differential equations, graphic dependences for peas and wheat are obtained, confirming the hypothesis that the caryopsis or segment is rotated by a long axis to the cutting zone in a very small period of time with a slight movement through the channels of the feed grain shredder. This gives us the right to conclude that the cutting of the segment of the caryopsis by the next stage of the working bodies of the proposed feed grain shredder occurs along the plane of the previous cut. Grinding of caryopsis of fodder crops and their segments occurs first of all across the smallest section and thereby the energy intensity of process of grain crops grinding on the average decreases by 11,9 %, and productivity of the shredder with cutting elements of the curvilinear form increases by 10,7 %.

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“…In common process of livestock-breeding production more than a half expenses falls to the share of forage [1].…”

Section: Introductionmentioning

confidence: 99%

Scarification of Seeds as an Increasing Element of Perennial Legume Grasses Productivity

Шевченко¹,

Банкрутенко²,

Koval³

et al. 2018

J. Phys.: Conf. Ser.

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Technology and principle of disk-type seed scarificator operation for seed treatment of perennial legume grasses are given. Parameter -level of mass loss during the friction on scarifying disk -M, % is introduced for quality assessment of scarification efficiency. During the researches it was revealed that mass loss of sowing material the highest sowing characteristics 20% are shown, further increasing of mass loss results in excessive seed damage and its sowing quality.

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Numerical Modelling of Slope Stability in Open Pit Phosphate Mines, Algeria: A Comparative Study

Cited by 8 publications

References 5 publications

Application of electrical tomography technique for landslide investigation: Case of the Kef Essenoun phosphate deposit, Djebel Onk (Northeastern Algeria)

Application of electrical tomography technique for landslide investigation: Case of the Kef Essenoun phosphate deposit, Djebel Onk (Northeastern Algeria)

Theoretical Description of Caryopsis Segment Motion in Feed Grain Shredder with Curved Cutting Elements

Scarification of Seeds as an Increasing Element of Perennial Legume Grasses Productivity

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