copper mine located in the north of Chile, with a production over 100 000 t/a, where D&B plays an important role in the Properties of the rock mass and discontinuities Properties of the explosive(s) used. Tables I and II show the drilling and blasting practices
design parameters of drilling-blasting. For its experimentation and validation, we have taken the data from a copper mine as reference located in the north of Chile, because of we have the dataset of that ore deposit, which is valid and reliable to evaluate prediction problems based on ANN applied to copper mines.
Jul 14, 2013· The drill used in Plan C needed to cut through some 1,969 feet (600 meters) of rock and earth. Plan A drill was a Raise Borer Strata 950, usually used for drilling ventilation shafts in mines.
productive drill and blast operations. TECHNOLOGY Developments in information technology have gone through leaps and bounds, which have led to ripple effects in raising the standards of technology in drilling and blasting. In drilling, there is now available advanced use of GPS guided drilling
OPTIMIZATION OF DRILLING AND BLASTING PRACTICES AT A WESTERN US OPEN PIT COPPER MINE . by . Joel Edem Kwaku Gadikor . A thesis submitted in partial fulfillment of the requirements for the degree of . Master of Science in Mining Engineering . Montana Tech . 2018
Mar 01, 2020· Drilling performance data can provide a viable means of characterizing the rock mass for MTM. The use of blasthole drilling data is advantageous since it is acquired systematically, routinely, and in real time .In the mining industry, monitoring while drilling (MWD) is a standard practice for obtaining penetration rate (PR), rotational speed, flushing pressure, and GPS-based drillhole
Nov 01, 2018· In this paper, a hypothetical open pit copper mine is considered, which needs to produce 30 million tonnes of waste and 25 million tonnes of ore based on its annual planning. This mine works 340 days a year, on which the drilling and blasting operations can be carried out. Thus, the time scale of the dynamic model is set as these operational days.
Advances in drilling and blasting affect energy consumption overall in the mine, for example, you can recover more material with the same amount of energy at the crusher. If fragmentation is correct, it will end recycling material through crushers. And with extremely hard rock, teams will know to blend it so performance and recovery remain high.”
Bender (1999) defined production blasting as the type of blasting that is designed to fragment a predetermined volume of rock; widely spaced holes are drilled and fired in a controlled delay sequence.
The innovative practices in the areas of bulk loading of explosives, controlled blasting, explosive performance measurement and the evaluation of blast outcome and productivity have been outlined. The role to be played by the electronic detonators in the next millennium to improve blasting efficiency and mining economics has been described.
copper mine located in the north of Chile, with a production over 100 000 t/a, where D&B plays an important role in the Properties of the rock mass and discontinuities Properties of the explosive(s) used. Tables I and II show the drilling and blasting practices
Chile at an elevation of 1,000 metres, approximately 350 kilometres north of Santiago and 100 km from La Serena City, near the southern limit of the Atacama Desert Andacollo is an open cut copper mine that produces copper cathode through leaching operations. The Situation Andacollo was experiencing problems with fines materials on their leach pads.
DSI Chile demonstrates Advantages of Resin Rock Bolt Systems in Chilean Copper Mine. The S.C. Minera Atacama Kozan copper mine is located approx. 15km south-east of the town of Copiapó in northern Chile. The owners, a joint venture consisting of Nittetsu Mining Co Ltd., a Japanese firm, and Inversiones Errazuriz Ltd., a Chilean company, have
Nov 01, 2018· In this paper, a hypothetical open pit copper mine is considered, which needs to produce 30 million tonnes of waste and 25 million tonnes of ore based on its annual planning. This mine works 340 days a year, on which the drilling and blasting operations can be carried out. Thus, the time scale of the dynamic model is set as these operational days.
The Lomas Bayas open-pit copper mine is in northern Chile and produces copper cathode on site. achieves excellent performance in all types of rock. “This bulk watergel contributes to minimise the total cost of ownership due to the savings in the drilling and blasting application and the whole value chain of the mine as a result of a
Jul 28, 2017· 4 In mining operations, blasting has become a routine work. With proper understanding of the rocks and blasting methods, the mining work can be done effectively. 5. 5 The basic objectives of this report is to highlight the principles and practices adopted in rock blasting operations for mining
Opening a new mine or expanding an existing operation can be a challenging and daunting task. Aside from assessing and evaluating social-environmental concerns and designing the mining and material movement approach, the first question often asked is, "how much will it cost us to mine?"
is a hump of solid rock between the free face and the bench floor), and backbreak. α varies between 00 and 300 from the vertical plane. Subdrill (subgrade drilling or overdrilling) (U) : This is the extra depth drilled below the grade level to assure that the full face of the rock can be broken to the desired excavation level.
Drilling and blasting procedures at the mine were observed. Rock mass property data were collected, a program of seismic monitoring and analysis was conducted, and 3-D laser survey scans of the workings before and after each blast were performed. The geologic data showed that the rock mass quality was characterized as poor to very poor.
geotechnical engineering practice to mine design and general operating procedures, to allow safe and economic mining of any commodity within any rock mass *. The intent of this guideline is to provide examples of good geotechnical engineering practice and to assist mining operators in achieving compliance with Regulation 13.8 of the Mines
Drilling and blasting is the controlled use of explosives and other methods such as gas pressure blasting pyrotechnics, to break rock for excavation.It is practiced most often in mining, quarrying and civil engineering such as dam, tunnel or road construction.The result of rock blasting is often known as a rock cut.. Drilling and blasting currently utilizes many different varieties of
Accurate long hole drilling in Philippine mine allows explosive blasting to remove sections of rock with precision. Two men operating a steam drill c.1910. They are drilling
Drilling and blasting are the most important activity, where miners suffer most of the problems, therefore where exists the most important oppor tunity to improve their work, achieving best practices, safety and profitability (Hentschel et al, 2002, Hruschka and Echavarría, 2011). The study presented herein was developed during R&D proj ects
Orica’s WebGen™ 100, the first truly wireless rock blasting system, has been used in trials at the zinc-copper-pyrite mine since September 2018, with FQM, to date, carrying out five blasts. Since the invention of the safety fuse by William Bickford in 1831, there has been three revolutions in blast initiation methods electric detonators