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Armed with accurate 3D datasets, LKAB engineers were able to start planning remediation work within weeks of the event. 2020-12-21 · Swedish mining giant LKAB suffered a significant seismic event at their Kiruna iron ore mine. Before they were able to restart operations, they needed to gain a complete understanding of the damage. AMKVO, a Swedish remote-sensing company, was called in to map the damage with Hovermap. Now, just over a month after the biggest seismic event ever registered by LKAB, the investigation has come a long way. In addition to accounting for the causes of the event, the investigation will also provide a basis for future decisions as to, for example, the layout of the mine, i.e., how roads and production areas will be located with respect to factors such as seismicity. LKAB KIRUNA SEISMIC EVENT INSPECTIONS AMKVO conducted over 30 flight and walking scans, at a depth of 1,236 meters below the surface, to map the damage throughout kilometers of drifts in Kiruna.

Lkab seismic event

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This is measured with completely different instruments which are not comparable with LKAB's local scale. Seismic activity is the rapid fracture of a rock mass that releases a lot of energy. The majority of such events near LKAB mines – sometimes several hundred to a thousand a day – are so minor that they cannot be felt and are only measurable with sensitive instruments. Now, just over a month after the biggest seismic event ever registered by LKAB, the investigation has come a long way. In addition to accounting for the causes of the event, the investigation will also provide a basis for future decisions as to, for example, the layout of the mine, i.e., how roads and production areas will be located with respect to factors such as seismicity. 2020-12-21 · Swedish mining giant LKAB suffered a significant seismic event at their Kiruna iron ore mine.

The seismic event occurred at 3.11 a.m. on May 18th. The event had a magnitude 3.3 on the local magnitude scale and occurred at a level of -1,146 metres (from zeroing point) in the mine's foot-wall.

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A prototype solution is tested in parallel with IMS’s routine manual processing in LKAB’s underground mines in Malmberget and Kiruna, providing four times more accurate earthquake locations based on 290 known blasts, 40 times faster The automation system, Sandvik’s AutoMine® Multi-Lite, enables greater flexibility by creating better prerequisites for increasing production, LKAB says. “We can boost production in one area from around 3,000 t to 5,000 t, since we can run more machines, even at night time,” Winsa says.

Lkab seismic event

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Lkab seismic event

LKAB constantly monitors seismic activity. It does this with hundreds of instruments called geophones that detect shock waves in the bedrock.

These types of failures are generally called rockbursts, but different mines give different meaning to the phenomena. Therefore the terms seismicity and seismic event will be introduced here. Seismicity is the rock mass response to deformation and failure. When a seismic event has occurred and has been registered by the LKAB seismic system a mining engineer firstly completes a preliminary analysis of the event.
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Seismic events occur when the natural tension in the bedrock changes. At 03:11 a.m.on Monday, May 18th, the largest seismic event ever to occur in the Kiruna mine took place. The event occurred at a level of -1,146 metres (from zeroing point) in the mine's foot-wall, and registered 3.3 on the local magnitude scale and 4.2 on the moment magnitude scale. The seismic event of May 18th has made history, not only among those who experienced the dramatic subsidence first-hand; it has also echoed throughout the mining world.

After being struck by a seismic event in May 2020,  Published · Keywords · Morning briefs · Daily + Magazine · Upcoming events · Categories · Support · My Fastmarkets MB. and three Swedish mining companies (Lundin Mining, LKAB and Boliden AB) in order to collect new data about the ground motion from larger seismic events  fallouts have been observed in both LKAB and Boliden mines.
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Production ramp-up in the Kiruna mine LKAB Minerals

Kiruna's ore is mined at a depth of more than 1,000m and The seismic event occurred at 3.11 a.m. on May 18th.


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This is how it works; LKAB monitors seismic activity; Information step by step; Local scale; Questions and answers; Contact; Investors Öppna undermeny. Financing Öppna undermeny. Key ratios; Loan programme and credit Öppna undermeny. Corporate bonds; Financial reports Öppna undermeny. Annual and 2019-11-06 2020-10-22 Reliable automatic processing of seismic events: solving the Swiss cheese problem W Törnman Luleå University of Technology, and LKAB, Sweden J Martinsson Luleå University of Technology, and LKAB, Sweden Abstract BEMIS (Bayesian estimation of mining-induced seismicity) is a fully automatic, near real-time, robust and LKAB is an international mining and minerals group that offers sustainable iron ore, minerals and special products. We are committed to developing carbon-free processes and products by 2045, leading the transformation of the iron and steel industry.

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online short course on #Seismic Methods in Deep #Mineral #Exploration! Meet our MSc graduates online on July, 1st in a matchmaking event organised by the  Emmanuel Henry, Daniel Sandstrrim, LKAB, Michel Plouffe, Martin Coté, fault slips and other seismic events in the footwall, and to localise and analyse them.

Seismic 2021 will cover the entire geophysical spectrum, from exploration through appraisal, development and production and through to abandonment and repurposing for CCS – the full lifecycle potential of the asset. Induced seismicity refers to typically minor earthquakes and tremors that are caused by human activity that alters the stresses and strains on the Earth's crust.Most induced seismicity is of a low magnitude.A few sites regularly have larger quakes, such as The Geysers geothermal plant in California which averaged two M4 events and 15 M3 events every year from 2004 to 2009. Seismic has always been an intimate boutique festival which is so crucial for that really special niche vibe, but it also plays in our favor in terms of the feasibility of our event taking place in May. We'll be capping at a little less than normal at 2,500 attendees and … LKAB has begun working to secure sustainable mining operations even after 2030. LKAB has a niche position thanks to its geology, cutting-edge technology and partnership with customers. Our culture is characterized by safety, inclusion and good development opportunities. LKAB has decided on a new group structure. The aim of the reorganization is to place greater focus on iron ore production and to secure sustainable long-term mining operations.