a practical rockfall hazard identification system for open pit mining slopes

Rockfall events are a common hazard in open-pit mines and quarries, and on slopes (Alejano et al. 2007;Alejano et al. 2008;Giacomini et al. 2011;Peila and Ronco 2011; Giacomini et al. 2012 ...

The use of rockfall protection systems in surface mining. Int J Surf Min Reclam Environ, 17 (1) ... The assessment of rockfall hazard at the base of talus slopes. Can Geotech J, 30 (4) (1993), pp. 620 ... Casagrande D. Numerical analysis of rockfall hazard in open pit coal mines. In: Khalili N, Oeser M, editors. Proceeding of computer …

The open pit has a length of approximately 6.6 km, a width of around 2.2 km, and a total area of about 14.52 km 2. The mining depth reaches 400 m. However, the Fushun West open-pit mine faces serious landslide hazards due to factors including open-pit mining, underground excavation, faults, and weak layers.

Abstract. Rockfalls are a major safety hazard in open cut mines, particularly in large-scale deep pits. The geotechnical design relies on in-situ, site-specific, rock slope data to predict the ...

This article presents an approach to rockfall hazard assessment for rocky slopes based on a previously published rockfall hazard methodology. The original method is appropriate to high alpine …

Girard, JM 2001, 'Assessing and monitoring open pit mine highwalls', 32nd Annual Institute on Mining Health, Safety and Research, pp. 159-171. Real-time rockfall detection with doppler radars 75-78

Abstract and Figures. This paper presents an approach to rockfall hazard assessment for open-pit mining faces in a quartzite mine. The proposal is based on geomechanical characterization of rock ...

mapping and hazard identification system was developed in 1991 and updated in 2019. The original mining operation involved closed-out waste dumps, and open pits with lacustrine clay and more ...

This work aimed to identify risk assessment methods specifically used in the open pit mining industry. ... A rockfall hazard rating system has been completed for use on Ontario highways based on a ...

The awareness of rock shape dependence in rockfall hazard assessment is growing, but experimental and field studies are scarce. ... open slopes, unencumbered …

In open pit mines, rockfall can occur due to slope degradation and can be made more severe through inadequate implementation of slope design. The dynamics of these events are largely a function of the mechanical properties of the detached rock, location of the detachment, the rock mass, and downslope profile [].Rockfall potential is …

The rockfall hazard in mining environments needs to be rigorously managed in order to ensure safe mining operations, in particular when designing portal entries for punch longwalls. The installation of drapery …

Abstract: A number of papers have recently dealt with the topics of economic risk and safety risk in open pits based on larger scale instabilities with more latency (warning time). Rockfall is, however, a low latency failure mechanism and as such, requires separate treatment. This paper presents a practical approach to quantifying rockfall risk based …

Abstract and Figures. Slope stability and rockfall control are key aspects for the success of an open pit mine operation. This study was motivated by a slope failure which occurred at the coal ...

A practical Rockfall Hazard Identification system for open pit mining slopes. In Proceedings of the Slope Stability 2009 Conference, November 9-11, Santiago, Chile. Gilmore, B.W., Hawley, P.M., & Pottie, J. (2009) Abstract. Rockfalls are a major hazard in an open pit mining environment.

Rockfall sources during open pit operations can be ubiquitous and extremely difficult to predict [].After blasting and bench cleanup and scaling, further rockfall occurrences can be a symptom of poor design implementation (e.g., poor blasting or scaling practices) or a result of natural weathering and freeze–thaw action [] at the bench …

Despite the performance of the system, photogrammetry-based slope monitoring is not considered a replacement for conventional slope-monitoring methods such as radar (Barla et al. 2017; Atzeni et al. 2015) and prisms. For active mine sites with greater personnel exposure to pit wall related hazards, these systems should continue to be …

This paper presents a qualitative rockfall hazard screening tool (QRHST) for benched mine slopes. The tool is intended as a guide to assist operational geotechnical personnel in …

15.1. Background. Mitigating rockfall risks is one of the most challenging tasks motivating the study of rock slope stability, especially in a time of rapid and extreme climatic changes (Sass and Oberlechner, 2012), and with burgeoning demands on both land and resources (Scavia et al., 2020).Rockfall events can be locally catastrophic, including …

We deployed one of such devices to manage rockfall hazards at the ... Bianchetti M, Coli N, Leoni L, Stopka CJ (2020) A new radar-based system for detecting and tracking rockfall in open pit mines. In: Dight PM (ed) Proceedings of the 2020 International Symposium on Slope Stability in Open Pit Mining and Civil Engineering, …

This paper presents a methodology for a hazard assessment system for open pit mine slopes based on 88 cases collated around the world using principal components analysis, discriminant analysis and confidence ellipses. The historical cases used in this study included copper, gold, iron, diamond, lead and zinc, platinum and …

Cross section sketches of typical open pit configurations ( a) and pit walls on the side of steep slopes ( b ). Not to scale. This paper presents a method for rockfall …

Slope stability is a critical safety and production issue for mining. Major wall failure can occur seemingly without any visual warning, causing loss of lives, damage to equipment, and disruption to the mining process. Monitoring systems, ranging from simple piezometers and extensometers to highly sophisticated radars and global navigation …

Rockfalls are a major safety hazard in open cut mines, particularly in large-scale deep pits. The geotechnical design relies on in-situ, site-specific, rock slope data to predict the trajectories and velocities of rockfalls that …

Ferrari et al. [28] presented a new procedure for execution of a qualitative assessment for the rockfall hazards designed for the Australian open-pit coal mining systems to identify the most ...

The estimated kinematic parameters are the most important findings for the rockfall hazard analysis, as evidenced by the rockfall model's rock trajectories. Table 5 shows the maximum values of velocity, kinetic energy, jump height, impact force, and their related reach probabilities for whole trajectories of each unstable block simulation. The ...

Constructing a berm on the catch bench is a popular method for the mitigation of rockfall hazards in open pit mining. The width of the catch bench and the height of the berm play a major role in ...

Rockfall phenomena represent a major hazard in mountainous areas because they can cause severe damage to infrastructure and buildings as well as serious injuries and fatalities. Rockfalls do not pose the same level of economic risk as large-scale landslides, yet they are responsible for a similar number of accidents and fatalities. Therefore, …

in open pit mining F González, A Calderón, Antofagasta Minerals, Chile; R Castellón, M Vargas, C Mena, L Orellana, ... 1163 A practical rockfall risk model for open pit mines using the time ... 1425 Development of an early warning system for shallow landslide hazard in the Grasberg area, Indonesia P Farina, Geoapp S.r.l., Italy; F Catani, A ...

Developing an accurate representation of the rock mass fabric is a key element in rock fall hazard analysis. The orientation, persistence and density of fractures control the volume and shape of unstable blocks or compartments. In this study, the discrete fracture modelling technique and digital photogrammetry were used to …

Controlling rockfall-related risks is a requir ement for safe pit operations and primarily. mitigated through adequate bench geometry design and implementation. This paper presents a. method for ...

Large, deep open-pit mining projects lead to rockfall, which becomes an engineering hazard second only to slope stability. The V shaped gully (V-gully) method introduced here was shown to have a significant effect on preventing rockfall through reduction of kinetic energy and rainfall discharge. The method, where a gravel cushion …

In open pit mines, rockfall can occur due to slope degradation and can be made more severe through inadequate implementation of slope design. The dynamics of …

Mitigation strategies are essential where the rockfall hazards exceed tolerable limits and threaten urban areas or roads (Li et al. 2019).For gentle slopes in hilly areas (slopes < 30°), the impact of the rockfall events can be mitigated through natural vegetation cover (Calvino et al. 2001).For steeper slopes, the mitigation measures can …