P&Q University Lesson 4: Drilling & Blasting
Properly designed and carefully executed, drilling and blasting offer the first, and perhaps greatest, opportunity to optimize quarry operations and control costs.
اقرأ أكثر
Enhancing Rock Fragmentation Assessment in Mining Blasting …
Introduction A limestone quarries mine is used for the extraction of limestone, which is a useful non-metallic mineral in several mineral industries. It is a raw ingredient used in the cement industry. Drilling and Blasting is the significant excavation method of limestone quarry mine compared to the mechanical excavation methods.
اقرأ أكثر
Engineering Geology Field Manual
Explosive selection, blast design, and delay pattern must consider the specific rock mass being blasted. The keys to characterizing the rock mass are a good geol-ogist and a good blasting …
اقرأ أكثر
Optimal Blast Design Considering the Effects of …
In quarries and mines, the drilling and the blasting activities is an essentially fundamental way of excavating rock. The blasting process is an integral and important part of mining operations and is intrinsically destructive for a variety of different reasons, notably efficiency, cost effectiveness and the capacity to shatter away even the most solid rock.
اقرأ أكثر
Enhancing Rock Fragmentation Assessment in Mining Blasting …
In a limestone quarry mine, fragmentation is a crucial outcome of blasting operations. The optimization of blasting operations greatly benefits from the prediction of rock fragmentation.
اقرأ أكثر
(PDF) Optimizing Drilling and Blasting in Derba Quarry
In quarries and mines, the drilling and the blasting activities is an essentially fundamental way of excavating rock. The blasting process is an integral and important part of mining operations and is intrinsically destructive for a variety of different reasons, notably efficiency, cost effectiveness and the capacity to shatter away even the ...
اقرأ أكثر
Optimization of drilling and blasting parameters to minimize boulders
Tororo cement limestone quarry is located' at a distance of 35 km (2.2 miles) to the South East of Tororo downtown. Drilling and blasting operations are used to extract the limestone for the urgent need to manufacture cement; lime and aggregate.
اقرأ أكثر
Blasting, Vibration, AlvandQoly, Limestone Mine, Analysing
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 …
اقرأ أكثر
Stemming material and Inter-row delay timing effect on blast
Both are mechanized mines and producing limestone for their captive cement plant. Mine-A is of M/s Shree Cement, Rajasthan and Mine-B of M/S Wonder Cement, Rajasthan. The height of benches is varied between 10 and13 m, and width of benches varies from 30 to 50 m. 2.1 Drilling and blasting practices
اقرأ أكثر
Enhancing blasting efficiency: A smart predictive model for cost
The primary goal of drilling-blasting operations in surface mining, such as limestone extraction, is to ensure optimal and efficient rock fragmentation. Drilling and blasting are the initial steps in breaking down rock formations to produce crushed rock of …
اقرأ أكثر
Optimization of Drilling and Blasting by Empirical Modelling
The primary purpose of blasting is to fragment rock, and there are significant rewards for delivering a fragmentation size range that is not only well suited to the mining system it feeds, but also minimizes unsaleable fractions and enhances the value of what can be sold. The outcome of blasting operations is determined by a number of indices or parameters, which can …
اقرأ أكثر
Research on Optimization of an Open-Bench Deep …
The blasting quality of open-pit mining can be enhanced and the production cost of stope reduced by establishing a mathematical model for step drilling and blasting costs based on stope consumption. By enhancing the …
اقرأ أكثر
Blasting, Vibration, AlvandQoly, Limestone Mine, Analysing
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
اقرأ أكثر
Analysing the Ground Vibration Due to Blasting at AlvandQoly Limestone Mine
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 …
اقرأ أكثر
Optimizing mining economics: Predicting blasting costs in limestone
The mining process involves several sequential stages, including drilling, blasting, loading, transportation, and mineral processing. Among these stages, blasting costs (BC) exhibit greater sensitivity compared to others. Inadequate blasting practices can lead to additional drilling, increased explosive consumption, and environmental consequences such as ground …
اقرأ أكثر
Blasting Techniques Used in Underground and Opencast Mines | Mining
Read this article to learn about the blasting techniques adopted in underground and opencast mines. Blasting Techniques Adopted in Underground Mines: Drilling Patterns in Stone: Drilling patterns, also called shot-hole patterns, are named after the type of cut holes used and the principal patterns are: (1) Pyramid cut or cone cut (2) Wedge cut (3) Drage cut (4) Fan cut (5) …
اقرأ أكثر
(PDF) Controlled blasting in a limestone mine using electronic
This paper presents a case study of controlled blasting at a limestone mine. In the phase of expansion of cement plant a highly controlled blasting has to be done so no harm and damage occurs to the nearby green structure. ... There was heavy ingress of water creating problem in long hole drilling and blasting of the explosives. To conduct a ...
اقرأ أكثر
An Overview of Drilling and Blasting in Mining
Blasting is a critical process in mining that breaks down rock formations, enabling efficient material removal. It involves strategically placing explosives within drill holes to …
اقرأ أكثر
Analysing the Ground Vibration Due to Blasting at AlvandQoly Limestone Mine
One of the most fundamental stages in open pit mining is drilling and blasting. A good fragmentation and a minimu m ground vibration are characteristics of a successful drilling and blasting operation. In this study, 78 b lasting events of AlvandQoly limestone mine located in Kurdestan cement company in west of Iran were investigated. The vibrations induced blasting …
اقرأ أكثر
Excavation of Limestone
Conventional methods of mining include drilling, blasting, loading, and transportation. The extraction of limestone is planned, adhering to the methodology mentioned in the mining plan approved by the Indian Bureau of Mines, which is a statutory body of the Ministry of Mines of the Government of India.
اقرأ أكثر
Blasting Techniques Used in Underground and Opencast Mines
Read this article to learn about the blasting techniques adopted in underground and opencast mines. Drilling patterns, also called shot-hole patterns, are named after the type of cut holes …
اقرأ أكثر
Drilling and Blasting Efficiency Assessment | Umbrex
Collect Drilling Data: Gather details on drill hole specifications (e.g., spacing, burden, depth) and equipment used. Record drilling rates and equipment utilization to identify inefficiencies. Analyze Explosive Usage: Review the type and quantity of explosives used in blasting operations. Calculate cost efficiency using the formula:
اقرأ أكثر
The fine art of blasting by Afrimat, South Africa
After acquiring a previously loss-making opencast limestone mine, the new owner has implemented several changes to turn around the operation. One key modification, among many critical transformations, is the optimisation of drilling and blasting parameters which have, to a large extent, improved the utilisation of equipment, productivity and economics. By Munesu …
اقرأ أكثر
(PDF) ROCK BLASTING FOR MINING
This work presents the application of the Kuz Ram model to minimize the drilling and blasting operational costs at the Lafarge Limestone …
اقرأ أكثر
(PDF) Optimization of Blasting Parameters- A case study
Surface mines primarily use drilling and blasting, which is an effective and relatively inexpensive method to excavate the hard rock mass. The geometry of surface mine bench blasting has a ...
اقرأ أكثر
Blasting pattern specifications of limestone mines.
Download Table | Blasting pattern specifications of limestone mines. from publication: A comparative study on the application of various artificial neural networks to simultaneous prediction of ...
اقرأ أكثر
(PDF) Optimizing Drilling and Blasting at Songwe II
This project conducted in order to analyses the optimization of drilling and blasting parameters to influence achievement of good …
اقرأ أكثر
Environmental Hazards of Limestone Mining and Adaptive …
8 Environmental Hazards of Limestone Mining and Adaptive … 125 8.3.1 Impacts on Land and Soil Opencast mining has been associated with a change in land use and land cover of
اقرأ أكثر
Enhancing rock fragmentation assessment in mine blasting …
The optimization of blasting operations greatly benefits from the prediction of rock fragmentation. The main factors that affect fragmentation are rock mass characteristics, blast geometry, and explosive properties. This paper is a step towards the implementation of machine learning and deep learning algorithms for predicting the extent of fragmentation (in …
اقرأ أكثر