Guidelines for Mine Waste Dump and Stockpile Design

2017 ◽  
Keyword(s):  
Site Selection ◽  
Mine Waste ◽  
Open Pit ◽  
Economic Damage ◽  
Waste Dump ◽  
Analysis And Design ◽  
Waste Dumps ◽  
Mine Waste Dump ◽  
And Performance ◽  
Construction Operation

Guidelines for Mine Waste Dump and Stockpile Design is a comprehensive, practical guide to the investigation, design, operation and monitoring of mine waste dumps, dragline spoils and major stockpiles associated with large open pit mines. These facilities are some of the largest man-made structures on Earth, and while most have performed very well, there are cases where instabilities have occurred with severe consequences, including loss of life and extensive environmental and economic damage. Developed and written by industry experts with extensive knowledge and experience, this book is an initiative of the Large Open Pit (LOP) Project. It comprises 16 chapters that follow the life cycle of a mine waste dump, dragline spoil or stockpile from site selection to closure and reclamation. It describes the investigation and design process, introduces a comprehensive stability rating and hazard classification system, provides guidance on acceptability criteria, and sets out the key elements of stability and runout analysis. Chapters on site and material characterisation, surface water and groundwater characterisation and management, risk assessment, operations and monitoring, management of ARD, emerging technologies and closure are included. A chapter is also dedicated to the analysis and design of dragline spoils. Guidelines for Mine Waste Dump and Stockpile Design summarises the current state of practice and provides insight and guidance to mine operators, geotechnical engineers, mining engineers, hydrogeologists, geologists and other individuals that are responsible at the mine site level for ensuring the stability and performance of these structures. Readership includes mining engineers, geotechnical engineers, civil engineers, engineering geologists, hydrogeologists, environmental scientists, and other professionals involved in the site selection, investigation, design, permitting, construction, operation, monitoring, closure and reclamation of mine waste dumps and stockpiles.

scholarly journals Geotechnical profiling of a surface mine waste dump using 2D Wenner–Schlumberger configuration

2021 ◽  
Vol 13 (1) ◽  
pp. 335-344 ◽  
Author(s):  
Supandi Supandi
Keyword(s):  
Stability Analysis ◽  
Slope Stability ◽  
Mine Waste ◽  
Line Length ◽  
Slope Stability Analysis ◽  
Actual Condition ◽  
Waste Dump ◽  
Geotechnical Characteristics ◽  
Waste Dumps ◽  
Mine Waste Dump

Abstract Mapping the subsurface in slope stability analysis of disposal areas is difficult, especially the disposal layering materials that are assumed to be homogeneous instead of their real conditions. Moreover, the hoarding activities on high slope form layers based on the nature of the rock mechanics with large materials or boulders rolling down to the toe of the slope, while small ones are held at the top. Each layer formed, however, has certain geotechnical characteristics. The aim of this study is to determine the profiling of disposal material using a geoelectrical method known as Wenner–Schlumberger configuration with a line length of 450 m and also to find the resistivity value for mine waste materials based on an empirical number, which is a number that is obtained from the result reading compared to the actual condition in the field. The study was conducted on an in-pit dump with an estimated height of 150 m and a thickness of 50 m, and the data obtained were processed using RES2DINV software. The results showed that the subsurface cross-section has three layers consisting of bedrock with a resistivity of 50–70 Ωm, contact zone with 30–50 Ωm, and disposal material layer with 1–30 Ωm, which can be used for the slope stability analysis. This concept is very helpful for the geotechnical analysis on high mine waste dumps or sloping basement zone. This study focuses on the resistivity value for waste dump materials, which has not been clearly mentioned in the previous studies.

scholarly journals Selecting Suitable Sites for Mine Waste Dumps Using GIS Techniques at Goldfields, Damang Mine

2017 ◽  
Vol 17 (1) ◽  
pp. 9-17
Author(s):  
H. A. Suleman ◽  
P. E. Baffoe
Keyword(s):  
Standard Model ◽  
Mine Waste ◽  
Waste Dump ◽  
Dump Site ◽  
Weighted Overlay ◽  
Surface Mines ◽  
Waste Dumps ◽  
Spatial Analyst ◽  
Mine Waste Dump ◽  
The Moment

AbstractThe selection of optimal sites for mine waste dumps is a significant problem associated with surface mines operations. A number of factors such as financial, environmental and safety requirements must be simultaneously considered to avoid potential losses. This research used the ModelBuilder tool and several GIS spatial analyst tools to select suitable sites for mine waste dump. The weighted overlay technique was adopted by first determining the necessary criteria and constraints and subsequently developing attributes for each criterion. The criteria used were grouped into a binary category of suitable and unsuitable. A total area of 17.01 km2 was determined as suitable, while 66.10 km2 was classified as unsuitable after overlaying and weighting all the criteria. Out of the suitable areas, an area of 13.62 km2 consisting of 21 sites were determined as optimal. Applying further constraints, 2 out of the 21 optimal sites were determined as the best sites. A step-wise model has been developed using ModelBuilder for selecting an economic but effective site for dumping mine waste using suitable constraints and criteria. This has facilitated the production of suitability maps generated from the various datasets being used for mine waste dump site selection. The final output map that best fits the criteria and constraints can be used by decision makers to set out the areas suitable for mine waste dump sites on the mine concession. The model could be applied as the standard model for selecting sites for mine waste dumps, since there is no standard model available at the moment.    Keywords: ModelBuilder, GIS, Constraints, Waste Dumps, Weighted Overlay

scholarly journals Sample Rocks Tests and Slope Stability Analysis of a Mine Waste Dump

2018 ◽  
Vol 2018 ◽  
pp. 1-17 ◽  
Author(s):  
Ping Zou ◽  
Ximo Zhao ◽  
Zhonghua Meng ◽  
Aibing Li ◽  
Zhengyu Liu ◽  
...  
Keyword(s):  
Stability Analysis ◽  
Failure Modes ◽  
Sliding Mode ◽  
Mine Waste ◽  
Limit Equilibrium ◽  
Soil Layer ◽  
Open Pit ◽  
Waste Dump ◽  
Waste Rocks ◽  
Mine Waste Dump

The safety and stability of waste dump are vital influencing factors to the mine sustainability and mine employees. Based on a real mine project in a certain open-pit mine waste dump in Tibet, the in situ test on waste rocks from waste dump, including measurements of density, water content, rock size, and natural repose angle, was conducted. Afterwards, these sample waste rocks, of which grain size is less than 5 cm, were selected for indoor large-scale shear test under natural and saturated conditions. By using some engineering methods, the physical and mechanical parameters of waste rocks layer were then determined accordingly. MIDAS-GTS/NX has the advantage of pre-processing modeling. FLAC3D has good computational and analytical capabilities. The process of dump accumulation is simulated numerically. According to the calculation results of FLAC3D, the distribution of stress, displacement and plastic zone in the dump is obtained. FOS (factor of safety) for each analytical step in this model was then calculated through the strength reduction method. The limit equilibrium method is used for waste dump stability analysis considering three states: only applied gravity, applied gravity and rainfall, and applied gravity and underground water. The results from this analysis show that the waste dump is stable. The potential failure modes of waste dump mainly consist of the “combined sliding mode” which has circular sliding in upper side and broken line sliding that cuts through gravel-soil layer into heavily weathered layer in the bottom. This paper documents some of the procedures and approaches utilized for waste dump life-of-mine design analysis. It provides reference for further waste dump optimization.

scholarly journals Characterization and Economic Potential of Historic Tailings from Gravity Separation: Implications from a Mine Waste Dump (Pb-Ag) in the Harz Mountains Mining District, Germany

Minerals ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 303 ◽  
Author(s):  
Kerstin Kuhn ◽  
Jeannet A. Meima
Keyword(s):  
Mine Waste ◽  
Froth Flotation ◽  
Economic Value ◽  
Gravity Separation ◽  
Mining District ◽  
Economic Potential ◽  
Waste Dump ◽  
Breakdown Spectroscopy ◽  
Mine Waste Dump ◽  
Drill Cores

In contrast to modern tailings from froth flotation, little is known about historic tailings from gravity separation. However, they may be of economic interest due to their higher metal grades compared to modern tailings. As an example for these types of historic tailings, the inner structure, as well as the economic potential (Pb, Zn, Cu, Ag, Sb), of the old Bergwerkswohlfahrt mine waste dump in Germany were studied. The investigations focused on textural, geochemical, and mineralogical properties. For this purpose, an extensive drilling program was undertaken. The drill cores were subsequently analyzed with a laser-induced breakdown spectroscopy (LIBS) core scanner to obtain the detailed spatial distribution of potentially valuable elements. The fine-sized residues could be differentiated into different layers, all of them including valuable metals in varying proportions. The strong variations in stratification and in metal distribution over short distances are caused by the batch-wise deposition of the tailings. This heterogeneity within short distances has to be taken into account for future exploration of these types of deposits. The application of a core scanner using LIBS is very convenient for detailed spatial analysis of drill cores, however, the calibration effort, particularly for heterogeneous sample material, is proportionally large. The valuable metal content for Bergwerkswohlfahrt was estimated to be 8000 metric tons of Pb and 610,000 ounces of Ag. Although of limited economic value, recycling might finance future remediation costs. Furthermore, the occurrence of historic tailings in nearby clusters may present further recycling opportunities.

scholarly journals Assessment of Rosa Majalis Herrm-Fruits Contamination with Heavy Metals in Open-Pit Coal Mine Waste Dumps

2015 ◽  
Vol 9 (4) ◽  
Author(s):  
Irina Nikolaevna Egorova ◽  
Olga Alexandrovna Neverova ◽  
Lyubov Sergeevna Dyshlyuk
Keyword(s):  
Heavy Metals ◽  
Coal Mine ◽  
Mine Waste ◽  
Open Pit ◽  
Coal Mine Waste ◽  
Waste Dumps

Impact of Rainfall on Seepage and Stability of a Mine Waste Dump Slope

2017 ◽  
Author(s):  
Lei Li ◽  
Zhi-Qiang Kang ◽  
Guang-Hua Sun ◽  
Ya-Nan Zhang
Keyword(s):  
Mine Waste ◽  
Waste Dump ◽  
Mine Waste Dump ◽  
Dump Slope
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