How can CAD Modeling be Useful in Engineering?

How can CAD Modeling be Useful in Engineering?

In every engineering program nowadays, there is always a course about CAD modeling. As school is supposed to prepare students for professional careers, Universities understand the importance of cad modeling in every industry today.   

First, CAD means Computer-Aided Design. It was created to replace manual drafting with the help of computers. CAD Technology allows 2D or 3D renderings of the drafts. With 2D Modeling, it is as if, the users were drawing on a sheet of paper whereas 3D modeling brings the design to life in the 3D Space.  

With CAD Modeling, drafters, artists, manufacturers, designers, architects, and engineers can test their design ideas, draft construction and engineering plans and visualize a realistic representation of their projects. 

Most engineering processes begin with the conceptual stage where a different set of ideas are explored and tested, to the production stage and delivery of the products, buildings, or infrastructures to the final users. Throughout this process, precision, accuracy, and efficiency are expected from engineers while at the same time respecting deadlines and budgets. In this capacity, CAD technology reveals itself as being useful to increase the efficiency of the processes by saving some time and offering accuracy and precision that manual calculations or drafting cannot. It allows users to modify and optimize processes in a few clicks. 

Whether it is, Chemical, Electrical, Civil, Mechanical, Biomedical, or Mining Engineering, CAD modeling offers many advantages that will be listed below: 

1. Savings of design time and increased efficiency  

Engineers are saving a lot of time with CAD technology because there is no need for hand drafting anymore. Drafting tasks that would have taken months and months to complete can now be accomplished in a few minutes. Also, in case of a mistake or requirements changes, engineers won’t have to redo the whole design again. With just a few clicks, the new requirements can be added, and the errors corrected. In addition, in many CAD software, templates, as well as nomenclature of recurrent elements, are included. The users can just use those elements in their drawings and don’t have to draw them again. Some elements in the conception can be isolated or added to other designs which allows the engineers to test different design combinations in a short period. 

2. Better Precision and Accuracy 

CAD technology software brings more accuracy and precision through the analysis of the viability of the designs with the help of mathematical models, therefore, reducing the need for physical prototype testing as well as mistakes. 

Most CAD software allows the usage of real data from the project to do costs and deadlines estimations. By using data from the project in real-time, engineers get a better sense of the reality and an accurate design that could be modified as the project progresses. 


3. Costs Reduction and accuracy of costs estimation 

By reducing considerably, the time associated with the design, projects are delivered in a faster time, and mistakes or faults in the design are detected earlier. In the long run, it reduces considerably the project costs. 

Also, the accuracy and precision brought by CAD modeling software allow for accurate costs estimations earlier in the conceptual phase. 


To conclude, CAD Technology is a powerful tool that engineers could use to get more efficient and produce more accurate designs while at the same time, reducing the costs associated with a project. 

With Promine, engineers and geologists can model diamond drill holes, as well as the 3D model of an orebody. They can design the drifts and the stopes and get volume and tonnage calculations. With the surveying modules, they can model real-time drifts and compare them to the planned stopes. With the mine planning module, different cost reports can be generated, and a Gantt chart produced. 


CAD Software: 2D And 3D Computer-Aided Design. (n.d.). Retrieved October 15, 2021, from 

Bethany. (2021, June 05). How Engineers Use Computer Aided Design. Retrieved October 15, 2021, from 

Kadoch. (2020, January 13). 5 avantages de la modélisation 3D pour la conception de vos projets énergétiques. Retrieved October 15, 2021, from 

What is 3D CAD Modeling? – Product Design Company: Design Launchers. (n.d.). Retrieved October 15, 2021, from 


Performance of Underground Mines in Chile

Performance of Underground Mines in Chile

The mining sector is a key element in the Chilean economy with most of the mining activities grouped in the north of the country and it accounts for 12% of Chile’s GDP. The top minerals found in the country are Copper, Gold, Silver, Molybdenum, and Iron. Chile leads the world’s production of copper and is among the top five producers of molybdenum and silver.  

In the last years, the mining industry worldwide has been turning towards underground mining, and Chile could not be the exception. The increase in technological advances that the world has been experiencing, as well as the increasing awareness of the environmental impact, have become two key factors in the return to underground mining. Despite open pit mining remains the most popular mining method for Cu or epithermal deposits, the trend towards sustainability is pointing to the underground methods for ground footprint reduction. 

Mines such as El Teniente, the world’s largest underground mine, owned by the state National Copper Corporation of Chile (CODELCO) have been investing in the expansion of the underground tunnels to expand the mine’s life for more than 50 years. Other mines such as the Chuquicamata, Chile’s largest open-pit copper mine, transitioned from open-pit mining to underground mining (Jamasmie, 2012).  This transition is expected to reduce 97% of suspended particulate matter originated from open-pit operations, thereby minimizing environmental demands (Michaud, n.d.) 

Without a doubt, Chile is facing a great challenge on the road to underground mining, because it is not only a matter of considering the new technical requirements that this new stage implies, but also it is essential to carry out geological studies, cost analysis, automation of tasks and preparation of the appropriate staff for the development of the operations. Therefore, it is important to highlight the crucial role those new technologies play in the evolution of mining operations, as profitability is not the only concern, but it is also important to think about sustainable operations that will drive the future of mining in Chile. 



Jarroud, M. (2013). Mining in Chile Going Back Underground. Inter Press Service. Retrieved 22 June 2021, from 

Jamasmie, C. (2012). Chile’s largest open pit copper mine goes underground. MINING.COM. Retrieved 23 June 2021, from 

Michaud, D. Why are Chile and the world going back to underground mining?. Mineral Processing & Metallurgy. Retrieved 24 June 2021, from 

Mining in Chile. Comisión Chilena del Cobre. Retrieved 24 June 2021, from 



L’une des priorités de toute exploration minière est de maximiser la production et d’augmenter les revenus[1]. Pour y parvenir, les ingénieurs miniers doivent jongler entre les coûts, la productivité, la dilution, le taux de recouvrement[2] et les impacts environnementaux face à des gisements de plus en plus complexes. En ce qui concerne la dilution, elle a un impact direct sur la rentabilité d’une opération minière. En effet, elle engendre des coûts supplémentaires de transport, manutention, concassage, transformation et traitement du minerai[3]. Il est donc impératif de surveiller les facteurs à l’origine de la dilution et de développer et employer des techniques pour la minimiser autant que possible. Mais d’abord, qu’est-ce que la dilution ?

La dilution correspond à la proportion de stérile présente dans le minerai lors de l’extraction. On en distingue deux types : la dilution planifiée et la dilution non planifiée. La dilution planifiée correspond à la proportion de matériau en dessous de la teneur de coupure, qui se situe dans les limites du chantier et extraite lors du minage. La dilution planifiée est parfois inévitable du fait de la méthode de minage ou de la morphologie du gisement2. Aussi, il est parfois difficile de séparer le matériau inférieur à la teneur de coupure, du minerai à cause du manque de flexibilité des foreuses et des techniques de sautage employées1. Quant à la dilution non planifiée, il s’agit de la proportion de stérile qui se retrouve dans la roche blastée due à un forage ou sautage inefficace. Le surabattage est une des causes principales de la dilution non planifiée1. Cette dilution non planifiée peut également provenir de la fragmentation involontaire de roches en dehors des limites du chantier, des parois rocheuses instables qui tombent dans le chantier ou de la présence de remblais2, mais aussi d’erreurs liées à la manutention des matériaux par exemple1. Alors que la dilution planifiée est difficile à éviter, la dilution non planifiée quant à elle, peut être réduite grâce à une bonne planification mais aussi l’emploi d’équipements et de pratiques adéquates2.

Il est donc primordial de s’intéresser à la dilution puisqu’elle impacte différentes étapes du cycle minier au niveau économique et environnemental3. En effet, la dilution augmente le tonnage extrait des chantiers tout en, en diminuant la teneur[4]. Plus de tonnage signifie donc plus de matériau transporté, concassé, criblé et transformé à l’usine. Au niveau économique, les coûts d’extraction, de manutention, de concassage et de traitement du minerai sont par conséquent plus élevés3. L’augmentation du tonnage extrait de la mine entraine aussi la réduction de la durée de vie du système de manutention, l’accroissement des coûts de maintenance des équipements et la hausse de la consommation électrique3. Au niveau environnemental, la dilution augmente la quantité de résidus miniers présent dans les parcs à résidus et par conséquent, le risque de drainage minier acide.

En somme, les opérations minières ont beaucoup à gagner à miser sur des programmes de quantification et de réduction de la dilution afin d’assurer des revenus maximums et réduire les risques environnementaux.



Henning, J. G., & Mitri, H. S. (2008). Assessment and Control of Ore Dilution in Long Hole Mining:

Case Studies. Geotechnical and Geological Engineering, 26(4), 349-366. doi:10.1007/s10706-008-



Scoble, M. J., & Moss, A. (1994). Dilution in underground bulk mining: Implications for production

management. Geological Society, London, Special Publications, 79(1), 95-108.



Zarshenas, Y., & Saeedi, G. (2016). Risk assessment of dilution in open pit mines. Arabian Journal of

Geosciences, 9(3). doi:10.1007/s12517-015-2214-8


Ebrahimi, A. (2013, Avril). The Importance Of Dilution Factor For Open Pit Mining Projects: SRK

Consulting. Consulté le 8 avril 2021, à partir de :


Future looks bright for green mining

Future looks bright for green mining

As more and more governments are trying to comply with the Paris Agreements goals, it is expected to see incentives to reduce carbon emissions in the mining industry in EU countries, the UK and Canada. Mining companies aim to reduce their emissions by investing in renewable energy installations as well as the progressive usage of electric mining truck fleets. Steel and aluminum producers will focus on the efficiency of operations and on waste recovery to comply with said governments regulations. As for Oil and Gas Producers, they will go for methane leakage and the decrease of venting and flaring in the pursuit of the reduction of carbon emissions[i].

However, with the Coronavirus epidemic, impacting the economy of many countries, governments might strive to achieve economic recovery pre-COVID-19. This could be materialized by more investments in infrastructures and a preference for economic growth over climate change contingency plans1.


In Canada, with the green Mining Initiative, mining companies, research centers, provincial governments and natural resources Canada are working around 4 Innovation pillars to make mining more efficient, safer, and more sustainable. As Mining is a huge part of our daily lives, it is important for the Industry to come together and work on ways to improve mining activities for future generations. The 1st Pillar is about Footprint Reduction. In Alberta for example, researchers are looking for non – aqueous alternatives to extract oil sands and avoid wet tailings. In Val d’Or, researchers are working on non-explosive extraction methods. The 2nd pillar is about mitigating the negative impacts of mineral processing. Rehabilitating mine sites to profit from them constitutes the goal of the 3rd pillar. Last, the 4th pillar focuses on studies about the impacts of mining on the fauna and flora[ii]

In addition, the Mining Association of Canada sets a world‑recognized sustainability standard, the Towards Sustainable Mining (TSM) initiative in 2004. Companies adhering to this initiative, pledge to responsible mining and their performance is measured by multiple indicators and tools. De Facto, all members are obligated to adhere to this Initiative and the program has been adopted by other countries like Finland, Argentina, Botswana, the Philippines, and Spain[iii].

Canada is leading by example and paving the way for a more sustainable mining industry. Past progress in the sector shows hope that despite COVID-19, sustainability is nowadays a goal of mining companies, governments, and academia. 

[i] Editor. (January 27, 2021). Five green energy trends topping miners’ agendas in 2021 – report.

[ii] Natural Resources Canada. (2018). Green Mining Innovation Video [Online Video]. Government of Canada.

[iii] Trade Commissionner Service. (January 18, 2021). Canada sets a world standard for sustainable mining. Government of Canada.