Continuous Monitoring and Improvement of the Blasting …
The current techniques used for monitoring the blasting process in open pit mines are manual, intermittent and inefficient and can expose technical manpower to hazardous conditions. This study presents the application of unmanned aerial vehicle (UAV) systems for monitoring and improving the blasting process in open pit mines. Field experiments …
Fragmentation by blasting size prediction using SVR-GOA …
Machine learning-based methods are considered in this study aiming to establish effective and robust blasting fragmentation models. For that, v-support vector machine (v-SVR) techniques are proposed and combined with two types of meta-heuristic algorithms, i.e., grasshopper optimization algorithm (GOA) and krill herd algorithm (KHA).
Calculation of blast hole charge amount based on three-dimensional …
Nowadays, rock blasting has been widely used in civil, water conservancy, hydropower, transportation, and other construction engineering fields 16,17,18.In open-pit mining, blasting operation is ...
Empirical Approach Based Estimation of Charge Factor and Dimensional …
The assessment seems good from the production planning perspective. However, the blasting practices with most sophisticated modern drilling equipment have surpassed the rule of thumb. The dimensional parameters in such cases must be decided on the basis of assessment of rock mass and geo-mining conditions.
Blasting Impact on Environment and their Control Measure Techniques …
These control blasting of blasting control as well as whole mining operation. techniques can be apply in any of the large open pit mines These tools will help us in all the stage of mining operation to reuse the impact Some of the important method are pre- including drilling & Blasting to the production of minerals. splitting & line drilling ...
Calculation of blast hole charge amount based on three …
Afterward, the blasting range polygon and stope triangle grid are used successively in the solid model to obtain the cut 3D solid model of the blasting rock mass; finally, the blast hole charge is ...
BEST PRACTICES IN DRILL AND BLAST
A global trend is emerging in which mining companies are subcontracting out the total blasting services (including drilling). Some companies have even subcontracted all work functions at the mine and processing plant. Over time, mine management becomes fully reliant upon their explosive suppliers, to the extent that all in-house blasting
Minimization of blast-induced dust emission using gene
In surface mining, blast-induced dust can be discharged to the atmosphere and impact the surrounding environment and nearby residential areas, especially if a large volume of rock is blasted under inappropriate meteorological conditions such as high wind speed. Many attempts have been done to predict the blast-induced dust emission …
Emerging trends in drilling and blasting technology: concerns …
In conventional blasting when explosive is detonated, it releases huge amount of effective and non-effective energies that can produce gas and shock accompanied by light, heat, sound and pressure. The effective energy can act as a useful tool in breaking rock for mining and construction purposes. However, the non-effective …
Mining | Free Full-Text | Evaluation and Prediction of Blast …
Blasting is a vital operation in industries such as mining, construction, and quarrying. It involves the use of chemical explosives to break down rocks and other hard …
A new protective destressing technique in underground hard coal mining
Commonly, stress manipulation techniques have been used to mitigate the risk of coalburst. Destress blasting offers a fast and significant decrease in stress concentration within the coal seam compared to the alternative destressing techniques. Stress accumulation shifts away from the excavation face and the fractured zone …
Optimization of Blasting-Associated Costs in Surface Mines …
Blasting outcomes have significant impacts on downstream mining operations such as loading, hauling, crushing, milling, and mineral processing. An ideal blasting plan can result in decrease in undesirable blast-induced impacts and in supplementary costs of downstream operations. This study developed a new …
Rock Blasting Technique -Mining Engineering Department Rock Blasting
Drilling and blasting are fundamental operations in the mining cycle and constitute an important component of the mining costs. Rock fragmentation can in principle be managed by means of two options: by increasing or reducing the specific consumption of explosives, or by modifying the drilling pattern.
(PDF) Comparative study of blasting techniques in …
Quarry mining is a term preferably restrict to production of dimension stone only. The products of dimension stone quarries are prismatic blocks of rocks such as …
blasting techniques in dimensional mining
Blasting Technique In Dimensional Stone Mining Rajasthan Public Service Commission, Ajmer15 Кб Mining of dimensional stoneNuclear blasting and Ocean mining met
A new geometrical-statistical algorithm for predicting two-dimensional …
In the present study, a two-dimensional statistical-geometric pattern is introduced to predict size distribution of rock fragmentation by blasting and the results are compared to image analysis of the rock fragmentation data from blasting operation in Miduk Copper mine and other geometric algorithms. 2. Research methodology2.1.
Royex Rock Breaking & Excavation – Safe, Reliable and Low …
Very low over break and fracturing zones, ideal for tunnel perimeter blasting, block- and dimensional stone splitting. 1.4S classification allows for high availability, quick and cost effective transport and storage. Minimal NOx and CO generation makes the product ideal for underground mining applications such as secondary blasting
Drilling and Blasting
17.6.3 Factors Influencing Disturbed Zone. A disturbed zone surrounding a tunnel is related to two different techniques: (1) mechanical boring or tunneling and (2) drilling and blasting method. A disturbed zone by drilling and blasting is much larger than that by mechanical tunneling such as the tunnel boring machine (TBM technique), …
Empirical Approach Based Estimation of Charge Factor and …
The assessment seems good from the production planning perspective. However, the blasting practices with most sophisticated modern drilling equipment have …
Mining | Free Full-Text | A Review of Dimension Stone …
This review paper examines extraction methods in the dimension stone industry. Traditional techniques, like thermal shock, hammer and chisel, and plug and feather, were used historically. However, advancements in technology have led to the adoption of mechanized methods. Diamond wire cutting is a highly efficient technique …
A Scientific Exploration of Blast-Induced Ground Vibration
Mining operations in close proximity to dwellings and sensitive structures present challenges in terms of mitigating the undesirable effects of blasting while maintaining productivity and ensuring the safety of surrounding communities. This paper explores the application of advanced blasting techniques, including the use of …
blasting techniques in dimensional mining
Blasting Technique In Dimensional Stone Mining Rajasthan Public Service Commission, Ajmer15 Кб Mining of dimensional stoneNuclear blasting and Ocean mining met. Toggle navigation. Home; About Us; Products; Cases; Solutions; ... blasting techniques in dimensional mining T02:09:44+00:00 Who we are > Products > Cases >
Using dimensional-regression analysis to predict the mean …
A methodology was founded on the basis of a dimensional analysis procedure, together with multivariate nonlinear regression analysis which is used to predict mean particle size of fragmentation at the Sungun surface mine. A practical database was made through a number of blasting operations in various levels of the mine with …
Understanding the connection between blasting and
Air decking is a widely used controlled blasting technique that requires an air space in the blast hole above the explosive charge [5].The purpose of this air space, …
How to Carry out Controlled Blasting of Rocks? [PDF]
🕑 Reading time: 1 minute The main objectives of controlled blasting techniques are to minimize the overbreak and fracturing of rock beyond the designated boundary of excavation to achieve smooth post-blast surface and to control wild flyrock and ground vibration within permissible limits. This objective is normally achieved by minimizing and …
Mitigation of rock burst events by blasting techniques …
Rock burst is a type of dynamic geological hazard caused by excavation. However, the response of the surrounding rocks may differ, depending on blasting or mechanical excavation method (Yan et al., 2011, Yan et al., 2012, Ji et al., 2013, Gong et al., 2012, Phien-wej and Cording, 1990). Therefore, the prevention of rock bursts should …
What are the techniques and hazards in drilling and blasting?
In underground mining, blasting is the primary method for rock excavation. Research is done on the effect of the vibration of the explosion, to the likely impact of the blast on the existing mining structures, before blasting takes place. Given that underground blasting is controlled cave-in, safety is a great concern hence calculations …
Proceedings of the nineteenth annual conference on …
This edition of the Proceedings of the Annual Confernce on Explosives and Blasting techniques is the nineteenth in a series piblished by the International Society of Explosives Engineers (ISEE). It contains papers on a wide range of explosives applications. ... Topics relate to productivity blasting in surface mining, dragline effectiveness ...
Where to Get a Blasting Certificate in South Africa – …
Contents. 1 A Comprehensive Guide on Obtaining a Blasting Certificate in South Africa: Find the Best Certification Programs. 1.1 Section 1: Accredited Institutions. 1.1.1 Department of Mineral Resources; 1.1.2 South African Mining and Explosives Training Institute; 1.1.3 Southern African Institute of Mining and Metallurgy; 1.2 Section 2: …
Blasting Techniques
Summary of Blasting Techniques class. blasting techniques introduction to blasting blasting is method of fragmenting or breaking of rock through the use of ... have a reduced spacing and employ decouple charges. Cut – an arrangement of holes used in U/G mining and tunnel blasting providing a free face for the remainder of the round to break ...