Featured Projects

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.

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.

Back-Analysis of Initial Stress at Shallow Depth – A Case Study (2016)

At shallow depth, the initial stress state can significantly affect the behavior of the rock mass around excavations, but stress measurements are usually subjected to high levels of uncertainty. This was the case at the Odenplan railway station in Stockholm where unexpectedly large deformations were measured during the excavation.

SKB Apsö UFM application (2015)

SKB asked ITASCA to apply an advanced modelling framework (UFM) on the Äspö site to estimate its consistency with structural and hydraulic data. The UFM modelling framework (detailed in Davy et al., (2010, 2013)) is used to assess fracturing parameters and improve the DFN models in Äspö using in‐depth data.

Lake Livingston Hydropower Plant (2015)

The project involves a cut-and-cover derivation tunnel that delivers water to the power house where the turbines are located. All the components of the plant (headrace, Intake, penstock, powerhouse, and tailrace) require earth retaining structures during construction.

Estimation of Fracture Shear Displacements due to Slot Excavation (2015)

The main objective of the project was the estimation, via numerical modelling, of the displacement induced in fractures by the excavation of destressing slots at the Äspö Hard Rock Laboratory.

Numerical dynamic analysis of the stability of a tailings dam and evaluation of liquefaction potential (2015)

The tailings dam “Benkovski 2” is located about 7 km away from the flotation plant in the village of Mirkovo, Sofia region. It occupies an area of about 4 km2, and consists of two main gullies with different names for the two main negative landforms, "Ai Dere" and "Suludja Dere“. A dynamic analysis of the tailings dam, considering the liquefaction potential, is essential for assessing the stability of the tailings dam.

Hopper charging with spherical particles including rolling resistance mechanism (2015)

Evaluate the feasibility of using the distinct‐ element modeling to study the flow and segregation of frictional particles without cohesion.

Simulate an experimental test corresponding to the charge/discharge of a scale model batch hopper.

Analyze the segregation observed in the hopper after its charge.

Tunneling in Mixed Face Conditions (2015)

A research project on tunneling in mixed face conditions (rock-soil) was carried out with the aim to increase the knowledge and to better understand deformation mechanisms when these particular conditions arise. A back analysis of a case study involving the tunnel passage under the Maria Magdalena church was performed as a second task of the project, in which soil stratigraphy, rock/soil reinforcement, and extraction sequence were simulated explicitly and in detail.

Evaluating Multiple Mechanisms & Structural Forces in Slope Stabilization (2015)

Unlike slope stability analysis software based on the limit equilibrium method, Itasca’s numerical modeling software (FLAC, FLAC3D) is capable of predicting multiple interacting failure mechanisms and produces the structural forces in the stabilization features. These capabilities are critical to developing engineering judgment and in designing remedial measures.

Guidelines on Design of Rock Excavations (2015)

In 2009, the Swedish National Rail Administration presented a handbook with guidelines for the design of the load-bearing structure of rock tunnels. Following the merging of several transport administrations into The Swedish Transport Administration, an updated version of the handbook was required.

Photogrammetric Joint Mapping for the Relocation of T.H. 53 (2015)

The Minnesota Department of Transportation (MnDOT) relocated a portion of T.H. 53 between Eveleth and Virginia, MN. The preferred alignment crosses the existing Rouchleau iron ore pit on a 1,100-foot bridge. Two abutments and one pier of the bridge will be founded on bedrock. Future iron ore mining adjacent to the alignment will create rock slopes up to 500 ft high. After mining, the new roadway will be atop a trapezoidal cross-section 300 ft wide at the top and with downslopes of about 53 degrees.

Hopper discharge and flow comparison against experiments (2015)

Evaluate the feasibility of using the distinct‐ element modeling to study the flow and segregation of frictional particles without cohesion.

Simulate an experimental test corresponding to the charge/discharge of a scale model batch hopper.

Gold Heap-Leach Modeling (2015)

Itasca developed a numerical model to estimate gold (Au) production from heapleach operations. The objective was to simulate Au heap leaching using a model based on fluid flow and mass-transport (hydrodynamic modeling) in a partially saturated pad, and quantitatively assess monthly production of gold-cyanide production (AuCN).

Hydrogeologic and Geochemistry Support for Open Pit and Underground Mining at Ernest Henry Mine (2015)

The Ernest Henry Mine is a large open pit copper mine with deeper mineralization that was targeted for underground mining. A Feasibility Study (FS) was conducted to evaluate the potential for mining of the underground component by sublevel‐caving methods.

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Upcoming Events
4 Feb
SPE Hydraulic Fracturing Technology Conference and Exhibition
The SPE Hydraulic Fracturing Technology Conference and Exhibition showcases existing and new hydraulic fracturing technologies, using e... Read More
10 Feb
Stanford Geothermal Workshop 45th Annual
Bringing together engineers, scientists and managers involved in geothermal reservoir studies and developments; provide a forum for the... Read More
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