In this work, the recorded measurements of ground vibration in Metlaoui open pit mine of phosphate were analyzed according to several established criteria of damage in order to study the ground vibrations characteristics resulting from production blasts and to evaluate the vibrations impact on the nearby structures. Study area
In this study, vibration sensors were used to measure blast-induced ground vibration (PPV). Different evolutionary algorithms were assessed for predicting PPV, including the particle swarm optimization (PSO) algorithm, genetic algorithm (GA), imperialist competitive algorithm (ICA), and artificial bee colony (ABC). These evolutionary algorithms were used to optimize the support vector ...
Nov 01, 2018· Open pit mining (also known as strip mining) is the process of extracting ore, minerals and/or fossil fuels that occurs on the surface of a particular mining site. When considering all the mining operations in the world, at least 40 percent of mining takes …
Open pit mines can be used in coal mining, and they are used extensively in "hard rock" mining for ores such as metal ores, copper, gold, iron, aluminum, and many minerals. In a open pit coal mine, the pit bottom would be the bottom mined coal seam elevation, since it is usually feasible to extract multiple seams when surface mining coal.
Blasting near open pit walls CK McKenzie 84 APSSIM 2016, Brisbane, Australia Open pit blasting must be considered as a mining process with well-defined customers, those being the excavator/truck fleet (pit productivity), the processing plant (plant productivity), and the geotechnical department (pit safety).
Apr 19, 2018· Libraries & Cultural Resources Open Access Publications 2018-10-25 Assessment of Blasting-Induced Ground Vibration in an Open-Pit Mine under Different Rock Properties Yin, Zhi-qiang; Hu, Zu-xiang; Wei, Ze-di; Zhao, Guang-ming; Hai-feng, Ma; Zhang, Zhuo; Feng, Rui-min
Open pit mining operations will occur at a rate of approximately 21,000 tonnes per day (tpd) of ore, supported by a planned 1,000 tpd underground mining operation. For contingency purposes, a nominal 20% additional ore throughput should be considered above the planned output. Overburden and mine rock stripped from the open pit will be stored in ...
To measure ground vibration induced by blasting operations in open-pit mine, peak particle velocity (PPV) is considered a standard criterion for evaluating the intensity of the ground vibration. More than 80% of the energy of explosives is released by generating ground vibrations that spread through the rock and soil to surrounding structures ...
Feb 02, 2013· One of the most fundamental stages in open pit mining is drilling and blasting. A good fragmentation and a minimum ground vibration are characteristics of a successful drilling and blasting operation. In this study, 78 blasting events of AlvandQoly limestone mine located in Kurdestan cement company in west of Iran were investigated. The vibrations induced blasting was recorded by …
Dec 24, 2019· and release of gases [1]. Of these harmful e ects, ground vibration is considered to be the most dangerous phenomenon. It can make vibrations of buildings, instability of slopes and benches, and cause bewilderment for the residentials surrounding the mine. To measure ground vibration induced by blasting operations in open-pit mine, peak particle
Noise, vibration and airblast are significant environmental aspects to be managed by KCGM. Historically, residential areas have been located near KCGM and the operations preceding it. Just prior to the formation of KCGM, six underground mines on the Golden Mile operated "around the clock". With the change of mining method from underground to open pit […]
Blast-induced ground vibration (GV) is a hazardous phenomenon in open-pit mines, and it has unquestionable effects, such as slope instability, deformation of structures, and changing the flow direction of groundwater. Therefore, many studies in recent years have focused on the accurate prediction and control of GV in open-pit mines.
Oct 26, 2016· Ground vibrations originating from bench blasting may cause damage to slopes, structures, and underground workings in close proximity to an operating open-pit mine. It is important to monitor and predict ground vibration levels induced by blasting and to take measures to reduce their hazardous effects. The aims of this paper are to determine the weaker protection objects by …
Location: Labrador, Newfoundland, Canada Owner/Operator: Iron Ore Company of Canada Wabush 3 Open Pit Mine Project in Labrador will provide iron ore to Iron Ore Company of Canada's (IOC) existing concentrator plant and will also provide a new source of iron …
Open cast mining is a surface mining technique of extracting rock or minerals from the earth by their removal from an open pit or borrow pit. Walls of the pit are generally blast mined, creating ground vibrations and resulting in dust generation and water, air, and noise pollution.
Abstract Ground Vibrations and Air Blast Effects Induced by Blasting in Open Pit Mines: Case of Metlaoui Mining Basin, Southwestern Tunisia. Monia Aloui, Yannick Bleuzen, Elhoucine Essefi and Chedly Abbes. Blasting is widely used in quarries and mining production processes.
Aug 29, 2018· In an open-pit mine slope, rock mass has multiple joint structures and blasting operations have an obvious influence on its stability. Therefore, accurately predicting the blasting vibration is necessary to ensure slope stability. In this study, the blasting vibration signals monitored at a blasting site with different rock masses were used to investigate the attenuation characteristics of ...
According to recent research, a causal link has been established between occupational exposure to whole body vibration and an increased occurrence of low back pain. To aid in the further development of an in-house health and safety program for a large open pit mining facility interested in reducing …
Dec 01, 2015· Rampura Agucha open-pit lead zinc mine is producing 5.7 Mt/a of ore and has started its underground part which is slated to produce initially 2–2.4 Mt/a and 4.5 Mt/a in near future.. The impact of 86 open-pit blasts has been documented in the underground openings and 258 blast vibration …
Markéta Lednická and Zden ěk Kaláb : Vibration response of waste rock dump in open pit mine caused by blasting operation 72 Only the mined out part of the quarry was at the disposal of waste rock deposit. The dump had four levels at the time of performed seismological measurement (Fig. 1, 2), the height of the dump was about 23 m, and
Teck's Red Dog surface zinc mine adds US$6.5 million annually through blast monitoring. Centerra Gold's Mount Milligan open cast copper mine recovered over US$600,000 of ore in one blast. Anaconda Mining's Pine Cove gold mine reduced dilution from 20% to less than 5% and generated a 15% increase in recovered tonnes, valued at US$15-30k ...
The potential air-blast and vibration impacts related with the Chimiwungo open pit of Lumwana mine are typical for a large open -pit mining operation and generally include: Operation of lightand heavy vehicles for transportation of personnel, materials and equipment within the site.
Mining Publication: Comparison of Whole-Body Vibration Exposures on Older and Newer Haulage Trucks at an Aggregate Stone Quarry Operation. Keywords: Haulage trucks Open pit mining Whole-body vibration. This page is archived for historical purposes …
Blast vibration effects in an underground mine caused by open-pit mining P.K. Singha,n, M.P. Roya, Ranjit K. Paswana, R.K. Dubeyb, C. Drebenstedtc a Central Institute ...
Aug 06, 2020· During the extraction of minerals in open pit mines, blasting operations are carried out producing shock waves and therefore vibration and noise that can be perceived by the inhabitants of nearby settlements. Vibration levels will depend on a number of factors and variables that mining planning must consider.
Aug 01, 2010· Therefore, the prediction of ground vibration components is of great importance for the minimization of the environmental complaints. This paper presents the result of ground vibration measurements induced by bench blasting at Can Open Pit Lignite Mine located close to the residential area of Can town.
For this reason, taking the blasting vibration of the second mining area of Mulei Kaiyuan Open-pit Coal Mine as an example, through survey and analysis of the seismic standards of ground buildings, operating environment and geological conditions of the blasting area, an optimized blasting network is proposed.
Summary: Blasting is an important operation in mining production but is a source of concern due to its associated environmental impact; in particular, blasting-induced vibrations may cause structural damage and human discomfort. For decades, communities near open-pit mines have complained of blasting-induced vibrations.