Split engineering is the leader in providing coarse rock size measurement systems and software for every stage in the comminution process. In this paper, fragmentation of the rock after blasting is estimated analytically by the use of neural network method. For this reason, a mature model has not yet been developed to meet all mining conditions and geological features siddiqui et al. Fragmentation predictor software fragmentation software. Fragmentation is the first result of blasting that is directly related to the mining costs. The mean fragment size of rock should not too high or too low. Wipfrag wipware fragmentation analysis software and. Proceedings of the 9th international symposium on rock fragmentation by blasting. Its simple, intuitive interface can import actual data from the topography of the terrainbench and display them in a 3d environment, and also. The most common software packages for this method are goldsize.
Based on desired blasting inputs such as face coordinates, hole diameter, pattern layout, rock characteristics, explosives, fragmentation size etc. One of the major concerns related to blasting operation in mining and civil engineering projects is rock fragmentation. It also shows calibration of factors given for the quarry. Blast design software opitblast ask us for a free trial. Break it better mine blast fragmentation international mining. By optimising rock fragmentation by blasting, you can achieve significant improvements in waste productivity, mill throughput, fragmentation profile and wall stability. By optimising rock fragmentation by blasting, you can achieve significant improvements in waste productivity, mill throughput, fragmentation profile and.
Stuart thomson, oricas global bulk and packaged explosives product manager, explains in this paper how blasting improves productivity and environmental performance with some. In order to overcome this drawback, the main goal of this paper is to provide a new framework to evaluate and predict rock fragmentation based on the. Wipware fragmentation analysis software and hardware. Fragmentation results are the primordial kpi that determines the quality of a blast. This is because oversize rock and very fines rock will occur. Soft blast is the australasian distributor of splitdesktop software for fragmentation size determination. Blasting and fragmentation journal international society. Is there any software for designing blasting pattern in tunnel. Fragmentation size distribution of a blast is the primordial kpi that determines the quality of a blast. Objectives at the end of this chapter, participants will be able to achieve.
Prediction, blasting, rock, granulation, fragmentation, blasted material. A specialized software package split desktop was used to estimate the actual mean fragmentation by analyzing scaled images from the post blast muck pile. Six different delay times were tested during four blasts at a granite quarry in talbotton, ga. Blast monitoring and fragmentation analysis rocketmine. Rock fragmentation by blasting contains the papers presented at the 10th international symposium on rock fragmentation by blasting new delhi, india, 2629 november 2012, and represents the most advanced forum on blasting science and technology. Mar 12, 2019 opitblast is windows blast design software to plan, share and control all the blast operations and their results. Improve safety and environmental impact assure security of supply optimize rock fragmentation real time rock characterization. This thesis tests whether or not short holetohole delay times improve rock fragmentation in full scale bench blasting. The blasting process, in which the optimal fragmentation and desirable displacement are.
In the past, the lack of an easy, nondisruptive, economical measuring technique has meant that, in most cases, rock fragmentation has not been defined in quantitative terms. Subscribe now submit a paper paper formatting instructions pdf. Blasting pattern software, our blast specialists are expert in blast design software. If you want to go through some math, there are several models to predict fragmentation. With an effective particle size analysis solution in place, mines can optimize blasting results and realized significant time and cost savings. Having the capacity to determine the expected rock size after blasting based on design parameters provides a strong basis for future designs. Analysis of blasted rocks fragmentation using digital image. The dnablast model provides a holistic and realistic model of rock breakage, and consequently of fragmentation distribution size, taking into account all key parameters. Blastatistics software for quality control of drilling and blasting in opencut mines. Blasting is the pillar of open pit mining and is directly influenced by many factors, both in design and terrain, and can influence much of the ultimate mine design and cost realization. Based on desired blasting inputs such as face coordinates, hole diameter, pattern layout, face rock characteristics and location, face profile, hole diameter, pattern layout, desired fragmentation size, explosives and initiating devices, environmental co. Since 1997, split engineering has been providing systems, software and service to the worldwide mining industry to enable process measurement and control. Split engineering provides measurements to manage fragmentation from blast to mill to improve mine profits quantify your fragmentation.
A new framework for evaluation of rock fragmentation in. The combination of our drilling and blasting technologies allow us to cover the largest possible volume and achieve the maximum displacement of sterile material, reducing the costs of excavation and transportation. The fragmentation of rock is fundamental to mining. Is there any software for designing blasting pattern in. For the most versatile and powerful blasting design solution. Shotplus blast design and modelling software for surface. Rioblast is a blast design and simulation software package, developed by maxam for drilling and blasting engineers and artillery experts. Our shotplus range of blast design and modelling software enable. Accepted, online first hamdi e, du mouza j 2005 a methodology for rock mass characterization and classification to improve blast results. The contributions cover all major recent advancements. Put fragmentation at your fingertips on your windows computer, tablet, android or ios device with wipfrag. Fragmentation control optimising fragmentation for.
With the objective to design, concept, iblast advanced delivers optimized initiation sequence for electronic delayed detonators based on required objectives fragmentation, vibration. Paper open access numerical simulation of rock fragmentation. Pdf analysis of blasted rocks fragmentation using digital image. Importation of real data and rock factor determination.
Rock fragmentation by blasting orica mining services. Fragmentation of the rock after blasting is an important determinant of the cost associated with these two components of mine development. Outputs of the split desktop software were obtained in tabular form as. The use of explosives, to break and fragment rock, is the fastest and efficient procedure to make it transportable has become a worldwide used technique. The economic analysis of the use of explosives is an important part of blasting operations in mining and construction.
The output of the analyses are in the form of number of exposed fragmented blocks, maximum. A unique reverse engineering tool for mining engineers looking for optimizing blast on a daily basis. A new framework for evaluation of rock fragmentation in open pit. Software solution for better rock drilling blasting design, planning and analysis. Drilling and blasting are fundamental operations in the mining cycle and consti tute an important component of the mining costs. A versatile fragmentation analysis software wipfrag can be used right at your fingertips. Softblast and its agents can also provide technical support and training. Iblast is blasting simulation engineering software to help optimise results without delaying the blasting process. Approximately vertical fracturing and little anisotropy typical rock types are quartzite and granite gneiss. Explosives are energy, and the efficient use of this energy is a major factor in keeping rock blasting costs under control.
Cunningham 1983, the kuzram model for prediction of fragmentation from blasting, trans. Planned fragmentation is affected by blasthole burden, spacing, explosive strength, geologic factors and blasthole diameter. Is there a analysis s software of blasted rocks fragmentation, that. Our shotplus range of blast design and modelling software enable users to design. Technical decisions, blasting costs, operational efficiency and productivity, and equipment performance can all be related to optimum rock fragmentation. Over blasting results in excessive energy consumption and high explosives expenses, while under blasting produces large rocks that overwork downstream equipment and shorten their lifespan. Althyabat and miles 2006 predicted particle dimension distribution using watershed algorithm and image analysis technique. The contributions cover all major recent advancements in blasting and fragmentation, from realistic treatment of the target rock. Portable 3d imaging and rock fragmentation motion metrics. The following buttons are for information about delpat. Limestone rock fragmentation analysis using wipfrag. Site of study is a limestone quarry producing limestone for cement manufacturing. The resulting calibrated value of the rock enables the quality prognosis of fragmentation in further blasting works with changed drilling geometry. It is the first preparatory stage in the extraction process making rock small enough and loose enough to be efficiently excavated.
Frequent blasting, poor fragmentation and poor utilization of equipment. Blasting and fragmentation journal international society of. In opencast mining, where blasting is employed for excavation, the overall cost effectiveness of the production operations is compatible with optimization of drilling and blasting parameters. Fragmentation analysis performed on a rock pile using wipfrag.
Overblasting results in excessive energy consumption and high explosives expenses, while underblasting produces large rocks that overwork downstream equipment and shorten their lifespan. Soft blast and its agents can also provide technical support and training. Evidences of the influence of the detonation sequence in. Split engineering provides measurements to manage fragmentation from blast to mill to improve mine profits. In opencast mining, where blasting is employed for excavation, the overall cost effectiveness of the production operations is compatible with optimization of. A practical method of bench blasting design for desired fragmentation based on digital image processing technique and kuzram model. Rock fragmentation control in opencast blasting pdf free. Rock fragmentation depends upon two groups of variables. Fragmentation predictor software fragmentation software for.
Market leading automated triggering is used to efficiently capture images of material travelling along a conveyor belt. The microsoft excel regression analysis correlated the two intact rock properties with the blasting efficiency. Rock fragmentation is a complex dynamic process relating to the interaction between rock mass and explosives. Aug 24, 2017 one of the inseparable parts of mining activities is blasting which one of its important outcomes is fragmentation. This technology allows your blasts to be captured and analysed for effective decision making. Rock fragmentation by blasting, lulea, 1, 26597 cunningham 1987, fragmentation estimations and the kuzram modelfour years on, trans.
Oct 12, 2012 independent upon blasting direction, hole deflection may be a considerable problem in inclined schistose rock, resulting in zones with poor fragmentation and bench floor problems. Rock fragmentation control in opencast blasting sciencedirect. Fragmentation principles evaluation of fragmentation factors controlling fragment size. Blasting fragmentation prediction and optimization. Whether you are a mining engineer designing blasts everyday, a manager looking for a better control of blasting operation or a blaster starting out learning how to improve blast design, dnablast software has the right tools for you.
Our fragmentation control solution provides the capture and reporting of fragmentation data, enabling improvements in fragmentation outcomes. The technology exists to reduce analysis time and build sufficient models to accurately predict rock fragmentation. Fragmentation is the ultimate measure of efficiency of any production blasting operations. Blast design software blasting pattern software for mining. Many variables such as blasting geometrical parameters, rock properties, explosive specification and insitu geology influence rock fragmentation. Split engineering rock fragmentation size image analysis. The effects of short delay times on rock fragmentation in. There are various methods for determining the degree of fragmentation which are divided into two groups, direct and indirect methods. Proceedings of the 2nd international symposium on rock fragmentation by blasting. Regarding the abovementioned problems in detecting rock particle dimensions using the existing software, in this research, an appropriate algorithm is developed by using the image processing methods and presented for detection of rock particles.
Optimization of blast fragmentation and muck profile. Wipwares innovative image, conveyor and vehicle material analysis software monitors particle sizes in the field and laboratory helping you make quantitative decisions, increase productivity, reduce downtime and lower operating costs. With blastiq i can see things like fragmentation size, how the shots coming up so we can tweak the patterns to try and keep a. One of the inseparable parts of mining activities is blasting which one of its important outcomes is fragmentation. This is to certify that the thesis entitled limestone rock fragmentation. Rock drilling blasting design, planning and analysis. Jan 05, 2019 in the mining world, rock blasting is one of the main procedures of ore winning process hustrulid, 1999. An optimal blast not only results in proper fragmentation but also reduces undesirable effects like ground vibration, fly rock and formation of toe in opencast benches. It is affected by the blast design characteristics, the explosive quality and specification and the rock properties. A new framework for evaluation of rock fragmentation in open.
Opitblast has tools to evaluate and estimate fragmentation even before the blast is performed. Fragmentation energy in rock blasting pdf free download. The fragment size analyses were carried out using wipfrag software. Highenergy explosives enhance fragmentation, which ultimately produces a positive effect on production. Softblast is the australasian distributor of splitdesktop software for fragmentation size determination. Blast fragmentation analysis using image processing. While the jkmrc is involved in an international collaborative project developing a more fundamental model of rock breakage, designated as the hybrid stress blasting model hsbm cundall et al, 2001, work is continuing to develop and improve. Analysis of blasted rocks fragmentation using digital image processing. In the mining world, rock blasting is one of the main procedures of ore winning process hustrulid, 1999. But this simple statement underestimates how important this activity is for the whole mining operation. Rock fragmentation can in principle be managed by means of two options. Approximately vertical fracturing and little anisotropy typical rock.
Independent upon blasting direction, hole deflection may be a considerable problem in inclined schistose rock, resulting in zones with poor fragmentation and bench floor problems. Opitblast is windows blast design software to plan, share and control all the blast operations and their results. Blast monitoring and fragmentation analysis helps improve safety, reliability and improve accuracy. Rock fragmentation by blasting, colorado, august, 47587. Attenuation law generator, blasting ppv warnings in near structures and critical blasting zones. It is difficult to give complete theoretical solution for its prediction. Analysis of blasted rocks fragmentation using digital. Rock fragmentation distribution influences a range of mining and milling processes including load and haul rates, crushing and grinding performance and ore recovery in beneficiation processes michaud et al. Break it better mine blast fragmentation international. Whether you are a mining engineer designing blasts everyday, a manager looking for a better control of blasting operation or a blaster starting out learning how to improve blast design, dna. Maxam foundation maxam chair blasting solutions design and simulation of blasts rioblast. Measurement of size distribution of blasted rock using. In recent years, image analysis technique has been used for prediction of rock fragmentation by blasting as a highcapability method in mining industry.