Role of Geometry and Stiffness Contrast on Stability of Open Pit Mines Struck by Earthquakes

2017 ◽  
Author(s):  
A. Azhari ◽  
U. Ozbay
Keyword(s):  
Open Pit ◽  
Open Pit Mines

scholarly journals Experimental Investigation on the Performance of DJI Phantom 4 RTK in the PPK Mode for 3D Mapping Open-Pit Mines

2020 ◽  
Vol 1 (2) ◽  
Author(s):  
Le VAN CANH ◽  
Cao XUAN CUONG ◽  
Nguyen QUOC LONG ◽  
Le THI THU HA ◽  
Tran TRUNG ANH ◽  
...  
Keyword(s):  
Coal Mines ◽  
Daily Basis ◽  
Open Pit ◽  
Surface Model ◽  
Test Field ◽  
Open Pit Mines ◽  
Ground Control Points ◽  
Aerial Vehicle ◽  
Topographic Surveys

Open-pit coal mines’ terrain is often complex and quickly and frequently changes. Therefore, topographic surveys of open-pit mines are undertaken on a daily basis. While these tasks are very time-consuming and costly with traditional methods such as total station and GNSS, the unmanned aerial vehicle (UAV) based method can be more efficient. This method is a combination of the “Structure from motion” (SfM) photogrammetry technique and UAV photogrammetry which has been widely used in topographic surveying. With an increasing popularity of RTK-enabled drones, it is becoming even more powerful method. While the important role of ground control points (GCP) in the accuracy of digital surface model (DSM) generated from images acquired by “traditional” UAVs (not RTK-enabled drones) has been proved in many previous studies, it is not clear in the case of RTK-enabled drones, especially for complex terrain in open-pit coal mines. In this study, we experimentally investigated the influence of GCP regarding its numbers and distribution on the accuracy of DSM generation from images acquired by RTK-enabled drones in open-pit coal mines. In addition, the Post Processing Kinematic (PPK) mode was executed over a test field with the same flight altitude. DSM generation was performed with several block control configurations: PPK only, PPK with one GCP, and PPK with two GCPs. Several positions of GCPs were also examined to test the optimal locations for placing GCPs to achieve accurate DSMs. The results show that the horizontal and vertical accuracy given by PPK only were 9.3 and 84.4 cm, respectively. However, when adding at least one GCP, the accuracy was significantly improved in both horizontal and vertical components, with RMSE for XY and Z ranging between 3.8 and 9.8 cm (with one GCP) and between 3.0 and 5.7 cm (with two GCPs), respectively. Also, the GCPs placed in the deep areas of the open-pit mine could ensure the cm-level accuracy.

scholarly journals Application of PANTERA system for monitoring vibrations induced by blasting works in open pit mining plants and the role of supervisors

2018 ◽  
Vol 66 ◽  
pp. 01014
Author(s):  
Grażyna Dzik ◽  
Adam Mirek
Keyword(s):  
Geological Structure ◽  
Open Pit ◽  
Open Pit Mining ◽  
Open Pit Mines ◽  
Mining Conditions ◽  
Seismic Vibrations ◽  
Dynamic Impacts

Measurements of vibrations induced by blasting works in mining plants are one of the possibilities of controlling the operations of open-pit facilities by supervisory authorities. As part of these works, impact of vibrations surveys on buildings within the range of harmful impacts zone of seismic vibrations are carried out to guarantee the safety and protection of their residents. The article presents the possibilities of using digital apparatus for recording and processing vibrations induced by blasting works used during supervisory activities in open-pit mines from 2015 to 2017. Recording and size of events depends on mining conditions and geological structure of the exploited deposit and is closely related to detonation of explosive. The use of dynamic impacts SWD scale against the backdrop of the current norm no PN-B-02170:2016-12 are discussed and examples of assessments of harmfulness of vibrations transmitted by the ground to buildings are presented. It was found that bigger and bigger number of monitoring measurements is performed every year, causes reducing the number of complaints and incriminating letters on mine companies receive in effects of impact of vibrations.

scholarly journals Hydrogeological Decision Analysis : Sump Optimization at an Open Pit Mine

2017 ◽  
Author(s):  
Aris Rinaldi
Keyword(s):  
Surface Water ◽  
Economic Value ◽  
Mining Industry ◽  
Open Pit Mine ◽  
Open Pit ◽  
Open Pit Mines ◽  
Drainage Channels ◽  
Pit Design

ABSTRACT Water is an aspect that is often becoming a problem in the mining industry. In a system of open pit mine, the water that comes from surface water and groundwater is collected into a temporary collecting pond which is commonly referred to as sump. This paper analyzes a case study of optimization of sump at an open pit coal mine in South Borneo.The design of sump often ignores the role of groundwater. It has quite an impact on the efficiency of the design of the sump and the number of pumps used during the dewatering process. The process of pumping on the open pit system considers the total amount of water that runs into the pond of water, not only surface water alone. Moreover, the interconnected drainage channels and culverts also play a role in the optimization of the open pit sump system.Analysis of hydrogeological decision has an enormous role in the sump optimization, including sump design, pump usage, and the total number of culverts on the system so that the open mine pit design, which has good technical and economic value, can be obtained.Keywords: mines hydrogeology, open pit mines, groundwater.

Management and engineering solutions to improve stripping equipment efficiency in Chernogorksy open pit mine

2018 ◽  
pp. 36-48
Author(s):  
G. N. Shapovalenko ◽  
S. N. Radionov ◽  
V. V. Gorbunov ◽  
V. A. Khazhiev ◽  
V. Yu. Zalyadnov ◽  
...  
Keyword(s):  
Open Pit Mine ◽  
Open Pit ◽  
High Concentration ◽  
Open Pit Mines ◽  
Blasting Operation ◽  
Internal Dump ◽  
Mining Conditions ◽  
Mining Front ◽  
Comparison Of Equipment

Chernogosky open pit mine integrates truck-and-shovel system of mining with overburden rehandling to internal dump with a set of walking excavators for rehandling of overburden to mined-out area of the pit. It is possible to improve efficiency of stripping in the conditions of Chernogorsky OPM by reducing percentage of stripping with more expensive handling system. The relevant research and solutions to this effect are presented in this article. Comparative characterization of mining conditions and parameters of mining systems applied is given for open pit mines Chernogorsky, Turnui, Nazarovsky, Vostochno-Beisky and Izykh. The comparative analysis points at the need to account for difficulty of mining and process sites in comparison of equipment productivity. High concentration of mining machines, which is conditioned by narrow mining front and simultaneous operation of five faces, as well as blasting operation implemented every 1-2 days, are recognized as the main constraints of excavator capacity in mining with direct dumping in Chernogorsky open pit mine. The management and engineering solutions implemented in the mine and resulted in higher efficiency of draglines are described.

MECHANICAL/HYDRAULIC ENGINEERING IN RECLAMATION OF OPEN PIT MINES

2018 ◽  
Vol 5 ◽  
pp. 59-64
Author(s):  
P.A. Prokhorov ◽  
◽  
Val.V. Sencus ◽  
A.L. Mansurov ◽  
◽  
...  
Keyword(s):  
Hydraulic Engineering ◽  
Open Pit ◽  
Open Pit Mines

Hydraulic excavators in coal-rich zones of open pit mines in Kuzbass: Experience and prospects

2019 ◽  
Vol 4 ◽  
pp. 152-160
Author(s):  
L.I. Kantovich ◽  
◽  
O.I. Litvin ◽  
A.A. Khoreshok ◽  
E.A. Tyuleneva ◽  
...  
Keyword(s):  
Open Pit ◽  
Open Pit Mines ◽  
Hydraulic Excavators

scholarly journals A GIS Software Module for Environmental Impact Assessment of the Open Pit Mining Projects for Small Mining Operators in Kazakhstan

2021 ◽  
Vol 13 (12) ◽  
pp. 6971
Author(s):  
Mikhail Zarubin ◽  
Larissa Statsenko ◽  
Pavel Spiridonov ◽  
Venera Zarubina ◽  
Noune Melkoumian ◽  
...  
Keyword(s):  
Environmental Impact ◽  
Impact Assessment ◽  
Environmental Impact Assessment ◽  
Mining Industry ◽  
Open Pit ◽  
Open Pit Mining ◽  
Software Module ◽  
Mining Operations ◽  
Open Pit Mines ◽  
Gis Software

This research article presents a software module for the environmental impact assessment (EIA) of open pit mines. The EIA software module has been developed based on the comprehensive examination of both country-specific (namely, Kazakhstan) and current international regulatory frameworks, legislation and EIA methodologies. EIA frameworks and methods have been critically evaluated, and mathematical models have been developed and implemented in the GIS software module ‘3D Quarry’. The proposed methodology and software module allows for optimised EIA calculations of open pit mines, aiming to minimise the negative impacts on the environment. The study presents an original methodology laid out as a basis for a software module for environmental impact assessment on atmosphere, water basins, soil and subsoil, tailored to the context of mining operations in Kazakhstan. The proposed software module offers an alternative to commercial off-the-shelf software packages currently used in the mining industry and is suitable for small mining operators in post-Soviet countries. It is anticipated that applications of the proposed software module will enable the transition to sustainable development in the Kazakh mining industry.

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