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Sjömalmen — Cave Modeling and Prediction of Ground Deformations (2017)

The city of Kiruna is partly located on the hanging wall side of the LKAB Kiirunavaara Mine. In the long-term perspective, it is not possible to have any residential buildings or infrastructure within the fracture zone and cave zone resulting from mining. An urban transformation process for the Kiruna city center is thus currently underway. The current prognosis is empirical based on observations since the early 1960s until today.

Investigation of Mine Access Tailings Storage in an Open Pit (2017)

The mine is interested in using the decommissioned open pit for storage of tailings from the underground mine, as this would be beneficial both from an environmental and an economical perspective. The implementation will be a technical challenge since portions of the crown pillar separating the open pit from the underground mining has been extracted.

Modelling concrete slab on rigid inclusion reinforced soil (2017)

In the context of a wine cellar extension project, a 20cm thick concrete slab is to be constructed on a soil reinforced by rigid inclusions. Itasca France has been called by the design office to verify the mechanical resistance of the concrete slab and assess its settlement under a uniform load.

Discrete modelling of lime kilns (2016)

KERNEOS Aluminate Technologies wishes to exploit the bauxite fines generated during the extraction, conditioning and transport of bulk bauxite, which are currently unused. To achieve this objective, the PARC project was built around 2 academics and 4 industrial companies, experts in their field.

Definition and flow analysis of UFM model for the Forsmark site (2016)

The Forsmark site is studied in the context of the Swedish nuclear disposal project. One key step is defining, at the relevant depths ‐ from 200 to 400m ‐ a Discrete Fracture Network (DFN) model. The DFN modeling framework is based on simplified rules that mimic the kinematic processes governing fracture nucleation, growth and arrest (models are named UFM for likely Universal Fracture Model).

Regional-Scale Stress Model of the Stockholm Area (2016)

New metro lines are planned in Stockholm, comprising a total length of approximately 20 km with 10 new stations, mostly located underground. One of the new lines will pass under Saltsjön (a bay of the Baltic Sea) and through a major regional large-scale geological structure. The stress magnitudes and orientations around the structure are highly uncertain, and stress measurements are not practically possible near the structure. To quantify possible stress conditions near the structure, discontinuum threedimensional numerical modeling was conducted.

Liquefaction Risk Mitigation using Jet Grouting Cells (2016)

Trevi Group has been involved in the design-build of a commercial building in Turkey in an area prone to liquefaction. The foundation of the building is located approximately 10 m below original grade, which still leaves about 10-12 m of potentially liquefiable sand underneath the bottom slab.

Fountain Slide – Slope Stabilization using Micropiles and Anchors (2016)

Fountain Slide has a long history of stability problems. The slope is bounded downhill by the Fraser River and uphill by a highway and a railway. This project stage focused on stabilization of a section of the railway that has suffered extensive damage to its retaining system.

Building a baked anode material with PFC (2016)

A baked anode is made of a complex material, obtained by mixing and baking different petrol coke grains, with different size distributions, with a pitch. Hydro PMT needs to study how cracks propagate in such a material – both within and between grains. Representing properly the non-spherical grain shapes, as well as the porosity, both between grains and within the coke grains, are therefore prerequisites.

Bench Stability Analysis at Björkdalsgruvan (2016)

The Björkdal mine ("Björkdalsgruvan"), located 28 km northwest of the town of Skellefteå, is a gold mine with the mineralization typified by Au-quartz veins located within a metamorphic package. The Björkdal mine is operating with both open pit- and underground mining. During spring 2016 the mine experienced local slope instability at one of the open pit walls. The concern was how it would affect safety for the mine workers and future mining, but also if it was safe to remove loose rock mass without endangering workers or interrupt any mining activities.

Geometry Model for the Follo Line Project (2016)

The Follo Line project is the largest railway project in Norway in modern times. The Follo Line is a high-speed railway partly in tunnel from the traffic hub at Ski to Oslo central station. The project comprise a 20 km long tunnel. The new railway is passing through central Oslo, beneath existing infrastructure which creates challenging conditions due to overlapping tunnels and multiple intersections.

Solution-Mining Modeling (2016)

A confidential mining client was interested in evaluating various potential future solution-mining scenarios using a numerical model in order to assess potential ore recovery, capital costs, and cavern lifetimes, as well as to overall optimize the proposed mine plan. Modeling of solution mining requires that the key processes controlling the mineral dissolution are modeled; however, there are numerous factors that complicate the details of the dissolution process that are impractical or impossible to account for in a model.

Discrete modelling of lime kilns (2016)

KERNEOS Aluminate Technologies wishes to exploit the bauxite fines generated during the extraction, conditioning and transport of bulk bauxite, which are currently unused. To achieve this objective, the PARC project was built around 2 academics and 4 industrial companies, experts in their field.

Parking Ramp over Light Rail Station (2016)

A parking ramp expansion has been proposed at Terminal 1-Lindbergh to be constructed over the north end of the Metro Transit Light Rail (LRT) station. Itasca assessed the magnitude of the principal impacts by conducting three-dimensional geostructural analyses of the LRT station using 3DEC. Of the six designs evaluated, all but one option were predicted to be geostructurally feasible.

Reinforcing a tunnel face using grouted fiberglass bolts (2016)

The aims of this work is to study the influence of face reinforcement on the tunnel stability and to check if the creep behavior of the rock may induce a potential jamming of the TBM during the excavation stop.

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Upcoming Events
26 Aug
Deep Foundations Institute S3: Slopes, Slides and Stabilization
The conference focuses on effective application of deep foundations, ground improvement, and soil mixing for stabilization of slopes an... Read More
30 Aug
ACG Caving 2022
The Block and Sublevel Caving Conferences provide a platform for mining companies to be kept informed of the latest technological devel... Read More
30 Aug
16th International conference of International Association for Computer Methods and Advances in Geomechanics (IACMAG). ... Read More