Study of Bench Stability in the Phosphate Mine (Algeria)

Fredj, Mohamed; Hafsaoui, A.; Khadri, Youcef; Boukarm, Riadh; Nakache, Radouane; Saadoun, Abderrazak; Menacer, Kamel

doi:10.1007/978-3-319-61648-3_7

Cited by 1 publication

(1 citation statement)

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“…In 2007, the Kef Essenoun landslide contained the most dangerous open pit mining activity in Algeria (Figure 2) [Fredj et al, 2017]. A rock mass that has fallen completely into the pit is estimated at around 11 ha, including 30 m of the productive layer and 40 m of the waste rock cover Depending on the shape of the rupture surface, the slip first appears as a circular landslide (Figure 3).…”

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%