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  • AEGIS Knowledgebase for Underground Ring Blasting Operations

iRing Knowledgebase for Underground Ring Blasting Operations

 
 

Welcome to the iRing Knowledgebase

 

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The knowledge concerning the use of explosives as well as case histories and other notes are taken from a broad range of sources including authors skilled in the art as well as personal experience. These works are acknowledged where appropriate and are presented here in order to provide answers to the world use of explosives in mining and construction for everyone. Many times its just handy to have a place to look up information without doing rigorous search. Hopefully some of the information provided here will be useful. We have tried to acknowledge content that came from outside our realm of experience and we have acknowledged those authors who have provided input in the explosives technology public domain who are used as credible references.
 

Underground Ring Design of the Future – AEGIS Suite – Designer and Analyzer

 A new product for underground blast design has been successfully developed and has now been released to the industry. AEGIS is a suite of products for advanced underground ring design. AEGIS automatically generates ring designs and charging layouts for an entire stope within seconds, dramatically changing the way that underground longhole ring design is done. AEGIS represents the future of underground drill and blast design.
Traditional underground drill and blast software is generally an extra module that sits on top of either a CAD package or geological modeling software. With CAD software, users must choose and pick from toolbars that define single steps in the ring design solution process. Indeed, the standard workflow is to slice rings and then step through the rings, one ring at a time, manually laying out holes. If the burden or spacing is adjusted, the user must start at the beginning by cutting slices for each ring. AEGIS is completely different from this.
AEGIS Designer is a fully independent standalone product that automatically generates all the drill holes for a stope within seconds. The user simply defines the existing voids, the geological contacts and an optional stope design – all of which may be imported from other mine planning software products – then sets the burden and toe spacing with a layout automatically generated in seconds. If the user decides to change the burden or spacing parameters, the layout is instantly regenerated using the new values. In fact, the user can even create multiple drill and blast scenarios using a variety of different parameters and then compare them. Using AEGIS Designer, an engineer or blast planner can design rings in four views – plan, section, longitudinal and 3D simultaneously. Most ring designers using CAD allow only one ring at a time in one view to be engineered.
Designer is very flexible and allows users to manually adjust individual rings and holes. It also has a slot raise pattern creator that allows the user to define standard slot raise patterns and then easily insert them into their ring layout.
A database containing rock type properties, explosives, drill rigs, slot raises and report templates is what allows Designer to rapidly and automatically generate drill hole layouts and charging plans. Blasts can be generated by selecting and sequencing holes and rings. Drilling layouts, charging plans and blast letters can be reported to paper by defining templates and then manually adding any notations or warnings as required. Designer also supports the IREDES data exchange specification for sending drilling plans electronically to compatible drill rigs. AEGIS has many enhancements including an extensive cost analysis module that facilitates tracking of all costs associated with the ring design process.
Designing longhole drilling layouts is not all that AEGIS can do.
AEGIS Analyzer is an additional module that provides advanced blast simulation and modeling tools. These tools are incredibly valuable for optimizing blasting operations. For example, a cavity monitoring survey (CMS) can be used to calibrate the blast simulation model. The model can then be used to predict the final excavation break and, if the fragmentation characteristics of the various rock types are known, the predicted amount of fines and oversize as well, allowing the blasting engineer to fine-tune the blast design for optimal results.
The layout of the software is such that additions to mining methods can be easily developed and implemented – e.g. drifting/development, shaft sinking. Alimak raising and VRM mining. Mines can use both AEGIS products as a ‘leveling’ instrument when contracts for long term explosives supply are under negotiation – which explosive products are best applied for a specific mining methodology.
 

iRing Inc. Announces New Advanced Costing Model - Release Date 01.05.2017 (dd/mm/yy)

AEGIS is a revolutionary underground mining application that allows underground mine planners to design the optimal drill and blast patterns over 5 times faster than before. AEGIS combines the ability to create drill and blast patterns for an entire stope in seconds, never before seen editing capability, state of the art analysis tools and a fully customizable reporting system. Design, refine, and optimize more effectively than ever before.
The new advanced costing module has been developed and released as part of the analyzer suite of tools. This new module will allow the mine planning engineer to accurately cost out the entire blast from the products used to associated drilling costs. The costs are organized into a spreadsheet based cost model. Unlike traditional costing approaches where costs are tied directly to database items. The cost model approach links a database item to a cost rule that is utilized when the model is applied. This allows multiple models to be created linking different cost rules to identical products. This allows costs to be tracked overtime and historical cost comparisons to be performed. In addition to product costs, cost rules can be setup on a per hole, per ring, per stope or per length drilled basis. 
It is possible to setup costing models to perform comparisons between different products that affect the operations differently. For example, when comparing the current explosive type to a new, more energetic explosive that will allow you to increase the blasting pattern. AEGIS will allow you to quickly create the new pattern at the expanded dimensions. In order to examine the cost differences between the current explosive and the new explosive a copy of the current cost model can be created and the new explosive product added to it. This new costing model would be applied to the expanded pattern and the differences can be quickly and easily compared.
The advanced costing model is integrated into AEGIS’ superb reporting infrastructure as an extensive series of flexible tables that can be incorporated into sophisticated reports capturing all aspects of the cost model.
iRing INC is a global industry leader in underground mining solutions. Combining leading edge software and experienced drill and blast consultants, the iRing team can help you optimize your drill and blast design. iRing Inc. is a North Bay based software company. Since 2005, it has specialized in underground blasting applications, consulting, training and research. iRing Inc.’s main focus is in the underground mining sector. It is our mission to provide leading edge technologies and solutions for mining blast optimization.
 

Blasting Animation- AEGIS Development Never Stops

One of the goals of AEGIS development is to bring users a fully functional fragmentation profiler using the AEGIS Break Model engine. The video below shows some of the initial work that has been done so far. With this type of work, abilities to predict fines, oversize and dilution will be even more accurate providing continuity of process shown in the flowchart below.
 
 
Fragmentation profiling using animation. Overbreak and dilution can also be seen when stope limits are set.