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دانلود رایگان Drilling rate prediction of an open pit mine using the rock
نرخ حفاری
مقاله
پاورپوینت
فایل فلش
کارآموزی
گزارش تخصصی
اقدام پژوهی
درس پژوهی
جزوه
خلاصه
Prediction of Backbreak in Open-Pit Blasting …
Backbreak is an undesirable phenomenon in blasting operations. It can cause instability of mine walls, falling down of machinery, improper fragmentation, reduced efficiency of drilling, etc. The existence of various effective parameters and their unknown relationships are the main reasons for inaccuracy of the empirical models. Presently, the application of new approaches such as artificial ...
Prediction of the caved rock zones’ scope induced …
15/08/2018 · Additionally, the rock mass located outside the predictive CRZs’ scope did not rupture based on the monitoring of Digital Optical Televiewing (OPTV), which was verified by the field test in Dabeishan Iron Mine, China. The results of the field test demonstrated that the prediction method used in this study was valid and could be used in practice.
Prediction of Backbreak in Open-Pit Blasting …
Backbreak is an undesirable phenomenon in blasting operations. It can cause instability of mine walls, falling down of machinery, improper fragmentation, reduced efficiency of drilling, etc. The existence of various effective parameters and their unknown relationships are the main reasons for inaccuracy of the empirical models. Presently, the application of new approaches such as artificial ...
Prediction of Backbreak in Open-Pit Blasting …
Monjezi M, Rezaei M, Yazdian A (2010a) Prediction of backbreak in open-pit blasting using fuzzy set theory. Expert Syst Appl 37(3):2637–2643 CrossRef Google Scholar Monjezi M, Bahrami A, Yazdian Varjani A (2010b) Simultaneous prediction of fragmentation and flyrock in blasting operation using artificial neural networks.
Prediction of Rock Fragmentation in Open Pit Mines
Prediction of Rock Fragmentation in Open Pit Mines, using Neural Network Analysis Kazem Oraee1, Bahareh Asi2 Loading and transport costs constitute up to 50% of the total operational costs in open pit mines. Fragmentation of the rock after blasting is an important determinant of the cost associated with these two components of mine development.
Prediction of the caved rock zones’ scope induced …
15/08/2018 · Additionally, the rock mass located outside the predictive CRZs’ scope did not rupture based on the monitoring of Digital Optical Televiewing (OPTV), which was verified by the field test in Dabeishan Iron Mine, China. The results of the field test demonstrated that the prediction method used in this study was valid and could be used in practice.
Optimization of flyrock and rock fragmentation in …
A successful and favorable explosion not only causes a proper rock fragmentation, but also decreases the unfavorable and unwanted environmental issues caused by explosion such as ground vibration, flyrock, air-overpressure and back-break. Therefore, anticipation and optimization of these issues produced by blasting operations is significant. In this study, an attempt has been made to design ...
Comprehensive Models for Evaluating Rockmass …
The relationships between geological features and rockmass behaviors under complex geological environments were investigated based on multiple intelligence classifiers. Random forest, support vector machine, bayes' classifier, fisher's classifier, logistic regression, and neural networks were used to establish models for evaluating the rockmass stability of slope.
Prediction of the caved rock zones’ scope induced …
15/08/2018 · Additionally, the rock mass located outside the predictive CRZs’ scope did not rupture based on the monitoring of Digital Optical Televiewing (OPTV), which was verified by the field test in Dabeishan Iron Mine, China. The results of the field test demonstrated that the prediction method used in this study was valid and could be used in practice.
Prediction of Rock Fragmentation in Open Pit Mines
Prediction of Rock Fragmentation in Open Pit Mines, using Neural Network Analysis Kazem Oraee1, Bahareh Asi2 Loading and transport costs constitute up to 50% of the total operational costs in open ...
(PDF) ROCK BLASTING FOR MINING - ResearchGate
rule, open-pit and coal strip mines using larg e drills will drill presplit holes that rang e from 9 to 12-¼ inches in diameter. Quarry and construction presplits are m uch smaller, generally ...
Akyem Gold Mine - Mining Technology | Mining …
22/08/2020 · The Akyem open-pit mine comprises of two lobes occupying a total area of 139ha. The open-pit mining operation employs drilling and blasting techniques for ore extraction. The extracted ore is loaded into haul trucks using shovels and backhoes. The waste rock is transported by haul roads to select disposal areas in the open-pit.
Prediction of the penetration rate of rotary blast …
01/07/2000 · A typical example may be cited as that, more than 100 million m 3 of overburden blasted annually in five Turkish open pit mines with a total annual drilling length of around 1.65×10 6 m. An accurate prediction of blast hole drilling rate helps to make more efficient the planning of drilling operations in a mine or quarry.
Evaluation of groundwater pollution in a mining …
31/03/2016 · This study focused on using analytical and numerical models to develop and manage groundwater resources, and predict the effects of management measurements in the groundwater system. Movement of contaminants can be studied based on groundwater flow characteristics. This study can be used for prediction of ion concentration and evaluation of groundwater pollution as the …
Comprehensive Models for Evaluating Rockmass …
The relationships between geological features and rockmass behaviors under complex geological environments were investigated based on multiple intelligence classifiers. Random forest, support vector machine, bayes' classifier, fisher's classifier, logistic regression, and neural networks were used to establish models for evaluating the rockmass stability of slope.
Prediction of the caved rock zones’ scope induced …
15/08/2018 · Additionally, the rock mass located outside the predictive CRZs’ scope did not rupture based on the monitoring of Digital Optical Televiewing (OPTV), which was verified by the field test in Dabeishan Iron Mine, China. The results of the field test demonstrated that the prediction method used in this study was valid and could be used in practice.
(PDF) ROCK BLASTING FOR MINING - ResearchGate
rule, open-pit and coal strip mines using larg e drills will drill presplit holes that rang e from 9 to 12-¼ inches in diameter. Quarry and construction presplits are m uch smaller, generally ...
Akyem Gold Mine - Mining Technology | Mining …
22/08/2020 · The Akyem open-pit mine comprises of two lobes occupying a total area of 139ha. The open-pit mining operation employs drilling and blasting techniques for ore extraction. The extracted ore is loaded into haul trucks using shovels and backhoes. The waste rock is transported by haul roads to select disposal areas in the open-pit.
Akyem Gold Mine - Mining Technology | Mining …
22/08/2020 · The Akyem open-pit mine comprises of two lobes occupying a total area of 139ha. The open-pit mining operation employs drilling and blasting techniques for ore extraction. The extracted ore is loaded into haul trucks using shovels and backhoes. The waste rock is transported by haul roads to select disposal areas in the open-pit.
Drilling rate prediction of an open pit mine using …
Using these data, an empirical relation was developed to predict drilling rate (DR) using the rock mass drillability index (RDi) and also a relation that can predict uniaxial compressive strength...
Prediction of the penetration rate of rotary blast …
01/07/2000 · A typical example may be cited as that, more than 100 million m 3 of overburden blasted annually in five Turkish open pit mines with a total annual drilling length of around 1.65×10 6 m. An accurate prediction of blast hole drilling rate helps to make more efficient the planning of drilling operations in a mine or quarry.
Prediction of Backbreak in Open-Pit Blasting …
Monjezi M, Rezaei M, Yazdian A (2010a) Prediction of backbreak in open-pit blasting using fuzzy set theory. Expert Syst Appl 37(3):2637–2643 CrossRef Google Scholar Monjezi M, Bahrami A, Yazdian Varjani A (2010b) Simultaneous prediction of fragmentation and flyrock in blasting operation using artificial neural networks.
A new framework for evaluation of rock …
01/04/2019 · His research interests include (1) optimization of M2M process, (2) open pit mine design and planning, and (3) size distribution curve analysis of rock mass fragmentation using image processing software, RES and DEMATEL approach. He has been a team member in Jajarm Bauxite Mine Project – (M2M) from 2017 to present.
Drilling rate prediction of an open pit mine using …
Using these data, an empirical relation was developed to predict drilling rate (DR) using the rock mass drillability index (RDi) and also a relation that can predict uniaxial compressive strength...
Open Pit Mining Techniques|Surface Mines|Rock …
Open-pit mines that manufacture building materials and dimension stone are usually referred to as quarries. People in few of the English-speaking countries are not likely to make a difference among an open-pit mine and other kinds of open-cast mines, like quarries, borrows, placers, and strip mines.
Future of mining: eight bold industry predictions
For example, Freeport-McMoRan is already using drones to create steeper pit slope angles in its mines, reducing the stripping ratio and amount of waste rock hauled before ore can be extracted. These drones not only scan the mines from perspectives that are dangerous and near-inaccessible to humans, they also instantaneously communicate any information they pick up.
Drilling rate prediction of an open pit mine using …
01/01/2015 · and RDi values, drilling rate can be predicted for all the mine zones. The predicted drilling rate for each zone of Gole Gohar Sirjan open pit mine is shown on Fig. 7. It can be seen that the predicted drilling rate in the most zones varies between 0.25 and 0.8 (m/min) where only in two zones the drilling rate exceeds 1 m/min.