Analysis of a Large Rock Slope Failure on the East Wall of the LAB Chrysotile Mine in Canada: LiDAR Monitoring and Displacement Analyses

Caudal, Philippe; Grenon, Martin; Turmel, Dominique; Locat, Jacques

doi:10.1007/s00603-016-1145-3

Cited by 20 publications

(9 citation statements)

References 28 publications

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“…In the studies by R. Chen et al, [109], S. Chhatkuli et al [110] and P. Caudal et al [111], information derived from LiDAR data assisted in the detection of deep-seated gravitational slope deformation, which is standard for hilly routes and poses a concern to highway users in the event of landslides or rockslides. Meanwhile, C. Lee et al [112] found that LiDAR can map existing locations as well as areas that may collapse in the future, such as constricted valley areas, tension cracks, or a landslide foot, especially on mountain roads.…”

Section: Road Inspectionmentioning

confidence: 99%

Perceived Usefulness of Airborne LiDAR Technology in Road Design and Management: A Review

et al. 2021

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Airborne light detection and ranging (LiDAR) surveying technology plays an important role in road design, and it is increasingly implemented in the design stage. The ability of LiDAR as a remote sensing technology to be used in non-accessible places (i.e., hilly terrain, steep slope) makes it a powerful tool, and it has the potential to provide benefits that simplify existing design processes for designers and practitioners. This paper reviews the application of airborne LiDAR in road design and factors including items from the perceived usefulness of technology. The context of the future direction of LiDAR technology is highlighted in civil engineering road design, roadway inspection and as-built documentation. The implementation of this technology is expected to assist the end-users in developing more manageable planning for road construction and thus to ensure the usage of LiDAR technology is enhanced from time to time, especially in Malaysia.

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Section: Road Inspectionmentioning

confidence: 99%

Perceived Usefulness of Airborne LiDAR Technology in Road Design and Management: A Review

et al. 2021

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“…As observed, the west wall experienced no serious differential elevations (or vertical movement) between 2012-2013 and 2013-2014. The LiDAR survey accuracy and changeof-detection threshold assessment method used in this paper are described in Caudal et al (2016). Based on these surface surveys and inclinometer readings, the west wall appears to be stable since 2012.…”

Section: Slope Geometry and Lithologymentioning

confidence: 99%

Deterministic and probabilistic stability analysis of a mining rock slope in the vicinity of a major public road — case study of the LAB Chrysotile mine in Canada

et al. 2018

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In recent years, several large open-pit mines have started operating in the province of Quebec in Canada, and some of the largest planned pits are located close to public infrastructure. Historically, large open-pit mining has seldom been done in many mining regions, such as the Abitibi region, where underground mines are the norm. As an integral part of achieving social acceptability of openpit mining, the stability of mining slopes must be carefully analyzed during the design process and the presence of public infrastructure near the slopes must be adequately considered. The province of Quebec does not have specific guidelines regarding such design considerations. This paper provides a short overview of the literature on some current practices regarding mining slope design close to public infrastructure. To demonstrate its applicability in the Quebec provincial context, the paper then investigates the stability of the west wall of the LAB Chrysotile open-pit mine in Thetford Mines (Quebec) near the new Road 112. Deterministic and probabilistic analyses were conducted using finite element shear strength reduction and limit equilibrium methods to investigate slope stability. The impact of pit infilling and rapid dewatering as well as long-term stability of the slope were investigated. The results of all analyses reveal that the current mining slopes at LAB Chrysotile are within acceptable design criteria limits. KEYWORDS open-pit mining, slope stability, public infrastructure, deterministic and probabilistic analysis, case study. CITATIONAmoushahi S, Grenon M, Locat J, & Turmel D. Deterministic and probabilistic stability analysis of a mining rock slope in the vicinity of a major public road-case study of the LAB Chrysotile mine in Canada.

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“…For example, a major mining slope failure occurred in July 2012 on the east wall of the LAB Chrysotile mine in Canada. The major consequence of this failure was the loss of the local highway (Road 112), the main economic link between the region and the Northeast USA [ 1 ]. On 17 November 2016, an unforeseen large slope failure occurred in a copper open-pit mine, causing several casualties among the mine workers that were operating in the area [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

Hazard Classification and Stability Analysis of High and Steep Slopes from Underground to Open-Pit Mining

Zhao²,

Hu³

et al. 2022

IJERPH

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The stability of high and steep slopes in open-pit mines is closely related to the mine operations and the lives of the surrounding residents, so it is important to ensure the safety and stability of the slopes. Hazard classification and stability analysis of high and steep slopes under different working conditions are studied using the Shizhuyuan non-ferrous metal mine from underground to open-pit mining as a typical example. Firstly, data on rock mechanics parameters were obtained through site investigation and sampling. Then, the slope model of the open-pit mine was established and some slopes were selected in the model for qualitative and quantitative analysis. The strength reduction method and the limit equilibrium method were used to calculate the safety factor under each working condition and point out the potential instability areas. The results show that the selected slopes are safe and stable under all working conditions. Finally, on the premise of maintaining the safety and stability of the mine, the final slope angle was optimized from the original 45°21′35″ to 55°30′41″ to reduce production costs and increase mining efficiency. The final open-pit boundary that meets the stability requirements was eventually obtained.

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Analysis of a Large Rock Slope Failure on the East Wall of the LAB Chrysotile Mine in Canada: LiDAR Monitoring and Displacement Analyses

Cited by 20 publications

References 28 publications

Perceived Usefulness of Airborne LiDAR Technology in Road Design and Management: A Review

Perceived Usefulness of Airborne LiDAR Technology in Road Design and Management: A Review

Deterministic and probabilistic stability analysis of a mining rock slope in the vicinity of a major public road — case study of the LAB Chrysotile mine in Canada

Hazard Classification and Stability Analysis of High and Steep Slopes from Underground to Open-Pit Mining

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