SLOPE STABILITY AND ROCKFALL HAZARD ANALYSIS IN OPEN PIT ZINC MINE

2015 ◽  
Author(s):  
Maged Almandalawi,
Keyword(s):  
Slope Stability ◽  
Hazard Analysis ◽  
Open Pit ◽  
Rockfall Hazard ◽  
Zinc Mine

scholarly journals Rock Fall Hazard Analysis for In-Pit Operations Potentially Impacting External Sensitive Areas

Mining ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 135-154
Author(s):  
Renato Macciotta ◽  
Frank Altamirano ◽  
Lachlan Gibbins ◽  
Marco Espezua ◽  
Rubén Fernández ◽  
...  
Keyword(s):  
Hazard Analysis ◽  
Three Dimensional ◽  
Mitigation Strategies ◽  
Open Pit ◽  
Peruvian Andes ◽  
Rockfall Hazard ◽  
Geometry Design ◽  
Steep Terrain ◽  
Rockfall Mitigation ◽  
Rockfall Protection Structures

Controlling rockfall-related risks is a requirement for safe pit operations and primarily mitigated through adequate bench geometry design and implementation. This paper presents a method for rockfall hazard analysis for in-pit operations potentially impacting external sensible areas, adapted from natural rockfall hazard analyses. The method considers the natural susceptibility to rockfalls pre-mining, rockfalls originated from bench failures, and those initiated as flyrock. Rockfall trajectory models are used to estimate the potential for blocks reaching exposed elements. Natural susceptibility to rockfalls and trajectories are used as a baseline on which to evaluate the potential effects of open pit operations on the environment and perceptions of communities in the area. The method is illustrated for an open pit in steep terrain in the Peruvian Andes at a feasibility level of study. The paper illustrates the flexibility for including considerations of pre-mining rockfall impacts on the external elements of interest, and for developing rockfall mitigation strategies that consider rock block velocities, heights, energies and the spatial distribution of trajectories. The results highlight the importance of considering the three-dimensional effects of the terrain on block trajectories, and how such insights allow for increasing the efficiency of resources available for rockfall protection structures.

GIS-Based Slope Stability Analysis, Chuquicamata Open Pit Copper Mine, Chile

2007 ◽  
Vol 16 (2) ◽  
pp. 171-190 ◽  
Author(s):  
Eric P. Nelson ◽  
Katherine A. Connors ◽  
Claudio Suárez S.
Keyword(s):  
Stability Analysis ◽  
Slope Stability ◽  
Slope Stability Analysis ◽  
Open Pit ◽  
Copper Mine

scholarly journals ANALISIS KESTABILAN LERENG HIGHWALL MENGGUNAKAN METODE BISHOP SIMPLIFIED PADA PIT 13 PT BELAYAN INTERNASIONAL COAL KECAMATAN MARANGKAYU KABUPATEN KUTAI KARTANEGARA

2021 ◽  
pp. 46-54
Author(s):  
Muhammad Amin Syam ◽  
Heriyanto Heriyanto ◽  
Hamzah Umar
Keyword(s):  
Stability Analysis ◽  
Slope Stability ◽  
Safety Factor ◽  
Slope Angle ◽  
Stable Condition ◽  
Physical And Mechanical Properties ◽  
Slope Stability Analysis ◽  
Open Pit ◽  
Mining Company ◽  
Water Saturated

PT Belayan Internasional Coal is an open-pit system mining company, one of its geotechnical activities is the construction of the slopes. Slope stability analysis used the Bishop Simplified method to obtain the value of the dynamic safety factor (≥ 1,1). Currently, the value of the Safety Factor (FK) is an indicator in determining whether the slope is stable or not. The parameters used in the slope stability analysis are the physical and mechanical properties of the rock, namely weight (ɣ), cohesion value (c), and internal shear angle (∅). From the results of dynamic overall slope calculations, the recommended overall slope is constructed with an individual slope angle of 55°, a bench width of 5 meters, a height of 10 meters, and the number of individual slopes of 8 slopes. This design will produce dimensions of the overall slope with 41° slope angle, 80 meters high, and has a dynamic safety factor value of 1,102 with the water-saturated condition. Thus, the slopes are in stable condition.

Sign in / Sign up

Export Citation Format

Share Document