Digitising drill and blast operations
Newcrest test drill and blast technology in New South Wales. Australia-based Newcrest Mining's Cadia Valley underground mine in New South Wales was the site of a 30-day trial for new drill and blast systems from MacLean Engineering and Orica in June 2020.. The trial provided the opportunity to test new technology from MacLean's …
Research on Optimization of an Open-Bench Deep-Hole Blasting …
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 Gray Wolf algorithm, the parameters for step drilling and blasting are optimized, resulting in improved …
What's new in automated drilling and blasting?
Since then, it has proliferated to other mining equipment and both open-pit and underground mines. Along with haul trucks, which are arguably the most automated of mining equipment today, autonomy in drilling equipment is now standard – ranging from remote control, tele-remote and semi-autonomous to autonomous – depending on a …
Development of a predictive model of fragmentation using drilling …
This article presents predictive statistical models for fragmentation in open pit mines using drill-And-blast data. The main contribution of this work is the proposing of statistical models to ...
(PDF) Optimized design of drilling and blasting operations in …
Drilling and blasting are the two most significant operations in open pit mines that play a crucial role in downstream stages. While previous research has …
Open pit drilling and blasting
Open pit drilling and blastingt SYNOPSIS By ALAN ,* B.Sc., Ph.D. (Visitor) ... drilling and blasting costs for a particular situation. To do this it is necessary to have, in addition to drill per- ... JOURNAL OF THE SOUTH AFRICAN INSTITUTE OF MINING AND METALLURGY JANUARY 1971115 %Total Time Drilling
Optimization of drilling and blasting operations in an open …
This paper tries to develop a mathematical model for finding an optimal length and width of the blast block for minimizing drilling and blasting costs in open pit mines.
Blast design in opencast mining | PPT
12. Blasting parameters Explosive consumption - The amount of explosive required to break the rock into an average size is called blasting consumption. Explosive consumption depends on rock strength and geology, kind of explosive, size of hole, delay system, initiation system, product size, available free face etc. Energy factor – energy …
Drilling & Blasting
Drilling and Blasting are probably two of the more attention-grabbing words used in all of mining. After ... Drills and drill cores are the tools of discovery and regardless of whether it's for a future open-pit …
Study on Blasting Technology for Open-Pit Layering of Complex Mine
The drilling equipment is the Atlas φ152 drilling rig of Jianshan Phosphate Mine and the Atlas φ145 (φ130, φ120, φ115, φ90) drilling rig of the engineering company. Blasting mainly uses 1# rock emulsion explosive and rock expanded ammonium nitrate explosive (the diameter of the roll is 70 mm, 1.5 kg/cylinder). ... The sound wave test ...
Blastability and Ore Grade Assessment from Drill Monitoring for Open
Blasting performance is influenced by mechanical and structural properties of the rock, on one side, and blast design parameters on the other. This paper describes a new methodology to assess rock mass quality from drill-monitoring data to guide blasting in open pit operations. Principal component analysis has been used to combine …
INVESTIGATION OF DRILLING AND BLASTING WORKS …
doi: 10.26730/2618-7434-2022-3-53-78 corpus id: 260613584; investigation of drilling and blasting works parameters for the combined technology of open pit mining of inclined deposits
Maptek
Drill and blast designs are crucial for downstream mining success. Knowing how to layout and load blast holes, run blast reports, edit holes, and adjust explosive tie-ins will help you create effective designs and increase blast accuracy and blast safety. Register for Open Pit Drill and Blast to learn: Best practices for drill pattern design.
Evaluation and optimization of blasting approaches to
1. Introduction. At present, drilling equipment with 200-mm hole diameter and above is widely used in large open-pit mine. The blasthole diameter has significant effect on rock fragmentation, since it is the primary blast design parameter and has influence on the choice of burden, spacing, stemming length, etc. [1], [2], [3].In order to …
Technologies for Optimizing Drilling and Blasting in …
The objective of the project described in this paper is to demonstrate tech nologies that can increase the amount of information obtained during drilling, and understand how this in …
Enabling better blasting
Carefully planning blasting activities. In open-pit mining, the use of blast-masters, by designing the shape and size of the blasting polygons for the whole bench in the initial planning stages, is essential to increase eciency; Blast design optimisation by …
Awesome Drilling and Blasting Moments on Open Pit Mines
This dynamic duo involves the precise drilling of blastholes into rock formations followed by controlled blasting to fragment the rock for easier excavation. In the realm of open pit mining, efficiency and precision are paramount, making the choice of drilling equipment crucial. One notable solution is DrillMore's range of specialized tools ...
OPTIMIZED DESIGN OF DRILLING AND BLASTING OPERATIONS IN OPEN PIT …
The purpose of drilling and blasting operations in surface mining is rock fragmentation. Drilling and blasting are the two key components in the overall rock fragmentation system, the first ...
Open Pit Mining | IntechOpen
Open pit mining method is one of the surface mining methods that has a traditional cone-shaped excavation and is usually employed to exploit a near-surface, nonselective and low-grade zones …
AN ANALYSIS OF THE EFFECTS OF VARIOUS BLASTING …
drilling and blasting of taconite ore in place and is fol lowed by several stages each of crushing and grinding. This thesis deals with the drilling and blasting functions of open pit taconite mining. Blasting at Mesabi Iron Range taconite mines involves the use of water gel explosives and blasting agents and
(PDF) Evaluation and optimization of blasting approaches to …
decreases the total drilling and blasting cost in open-pit mining [5]. Dhekne et al. held the view that the increase in the in-hole VoD. due to hole diameter increase has no effect on the ...
Evaluation and Risk Analysis of Open-Pit Mining Operations
Mining of raw materials is a process that consists of several stages. In open-pit mining, material with high compressive strength is extracted by drilling and blasting and material with low compressive strength is extracted by e. g. a bucket wheel excavator. Most important influencing factors for crusher decision are compressive …
Optimized design of drilling and blasting operations in open pit …
Drilling and blasting are the two most significant operations in open pit mines that play a crucial role in downstream stages. While previous research has focused on optimizing these operations as two separate parts or merely in a specific parameter, this paper proposes a system dynamic model (SDM) for drilling and blasting operations as an interactive …
Optimization of drilling and blasting operations in an open …
This study has been able to show that after monitoring drilling and blasting operations in a particular open pit mine one can use statistical methods to optimize the …
[VIDEO] Open-Pit Mine Blasting | Mining Digital
The art of open pit mining requires close to attention to geotechnical planning, scheduling of earthmoving equipment, drill and blasting, and safety. Each aspect requires constant monitoring to control and reduce costs and improve the extraction of ore from the ground in the safest, most efficient manner. The planning that goes into the …
5 common blasting methods in open pit mining
5 common blasting methods in open pit mining. As we know, open-pit mining operations mainly include perforation, blasting, loading, transport, and discharge of soil. Blasting is …
Blastability and Ore Grade Assessment from Drill Monitoring …
This paper describes a new methodology to assess rock mass quality from drill-monitoring data to guide blasting in open pit operations. Principal component …
Optimization of the drilling-and-blasting process to …
At the same time, the operating cost of the open pit mining is often several times lower than the cost of processing [4, 5], respectively, the cost of ore ... experimental blasts were carried out in the open pit, which has drilling-and-blasting process for the initial ore crushing. 2.2 Research site The object of the study is the section of ...
Optimization of drilling and blasting operations in an open pit mine …
The drilling and blasting cost in open pit mine represent 15-20% of the total mining cost (Afeni, 2009; Da Gama & Jimeno, 1993;Shim et al., 2009). The cost of the blasting unit operation has ...
An Open-Pit Multi-Stage Mine Production Scheduling Model for Drilling
This paper proposes a new multi-resource multi-stage scheduling problem for optimising the open-pit drilling, blasting and excavating operations under equipment capacity constraints.