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3D-Analysis of the Stockholm By-Pass Road Tunnel (2014)

A new motorway west of Stockholm linking the north and south side of Stockholm is under development – the so-called "Stockholm By-Pass" ("Förbifart Stockholm"). The new link is a 21 km long highway, of which 18 km is in tunnels. At the interchange of Lovön, four intake and exhaust air stations are planned, being in close proximity to the main tunnels and ramps. In this area, there is also a deformation zone going through the intake and exhaust air station.

Crookston Landslide Stabilization (2013)

In 2003, a landslide developed along the Red Lake river bank inside the city of Crookston, Minnesota. Although several attempts were made to solve the problem, in 2008, a second event occurred, and extensive instrumentation was then put in place to monitor the slope and gain a better understanding of the situation. In 2013, the Minnesota Department of Transportation issued a design and build project to improve the stability of the river bank.

Thermal and Dynamic Analysis of the RCC Dam for a Water Reservoir with a Geological Fault in the Foundation (2013)

This project involved the thermo-mechanical coupled, static, and dynamic analyses of the main dam of a water reservoir in a river in southern Chile.

System Design of Underground Facility for Spent Nuclear Fuel Storage (2012)

The design of the final nuclear repository design has been initiated by SKB and as a first step the system design of the underground facility has been executed.

Norra Länken 3D Stability Analysis (2012)

The Northern Link (Norra Länken) will be part of a major road system surrounding the Stockholm metropolitan area. As part of the design work for this project, Itasca Consultants AB and Itasca Consultants S.A.S. has performed a three-dimensional numerical study to analyze of the effect of a large surface load being applied on top of a tunnel intersection with low (4 m) rock cover. The analyses were performed using FLAC3D, and the model was constructed with KUBRIX Geo mesh generator using in conjunction with the Rhino CAD package.

Simulation of a tunnel excavation at shallow depth (Ohio River Bridge) (2012)

The behavior, during excavation, of a shallow tunnel cutting densely fractured limestones and dolomites raised concerns. The tunnel is called "Drumanar tunnel‘ and located in Louisville, in Southern Indiana. The model geometry is shown on Figure 1.

Long Term Cavern Stability of the SFR Facility (2012)

A numerical analysis was conducted to assess the long term stability of the rock caverns BMA and BLA for the final repository of low and middle level nuclear waste at the SFR facility in Forsmark, Sweden. The objective was to analyze if there exists a long term risk for an ongoing loosening of the rock mass up to the surface due to degradation and weathering of the rock mass adjacent to the walls of the rock caverns.

Long-term interaction between liner and claystone around a storage cavern (2011)

This project included feasibility studies to analyze building a radioactive waste repository set deep within a claystone layer. Itasca was asked to estimate the potential damage and consequences that may occur in the claystone surrounding a disposal gallery.

Jet Grouting Wall with Anchors (2011)

Keller Group constructed a 13 m deep underground parking lot. After many trials utilizing concrete diaphragm panels for ground support, this approach was found to be impractical. This was mainly due to the high aggregate-size variability of the morainic deposit (unconsolidated glacial debris) at the site. In such complex geotechnical situations jet grouting offers a valid alternative to traditional support systems.

Modelling of the excavation of two intersecting tunnels (2011)

In the framework of the extension of the Meuse/Haute‐Marne Underground Research Laboratory (France), Itasca Consultants SAS was commissioned by EIFFAGE to verify the tunnel stability and the design of the support structures installed during the excavation of two intersecting tunnels (Figure 1).In the framework of the extension of the Meuse/Haute‐Marne Underground Research Laboratory (France), Itasca Consultants SAS was commissioned by EIFFAGE to verify the tunnel stability and the design of the support structures installed during the excavation of two intersecting tunnels (Figure 1).

Observational Method for Deep Excavation (2010)

The Observational Method (OM) is a standard practice to support/guide design of infrastructure in sensitive environments, in particular for large excavations in urban areas. The example presented here is one of several cases from the construction of a recent subway line in Rome.

Analysis of MSE Retaining Wall (2008)

A section of retaining wall H on Trunk Highway 41 (TH41) south of the junction with TH212 in Chaska, Minnesota, "pushed out" following significant rainfall during construction. The rainfall event occurred prior to the pavement placement with the fill material exposed. The movement (horizontal displacement) of the wall that occurred after the rainfall event was permanent and visible.

Mechanical behavior of CBF-K canisters stored at CSA under internal gas pressure ()

In order to update the acceptance criteria of reactive metals in the Aube repository center (“CSA”, France) for low and intermediate-level short-lived radioactive waste, Itasca teamed with EGIS to study the mechanical behavior of graveled (OG) [1] and concreted (OB) structures containing concrete or steel canisters.

Rock Stabilization at Pompeys Pillar National Monument ()

Pompeys Pillar National Monument is a 200-foot-high sandstone outcrop containing hundreds of prehistoric and historic features, including William Clark’s signature, inscribed on the sandstone rock in 1806. The U.S. Bureau of Land Management asked ITASCA to assess the stability of the Signature Block and to evaluate remedial measures.

Spruce Tree House Arch Stabilization, Mesa Verde National Park ()

Mesa Verde National Park, located in southwestern Colorado, is the site of the 800 year old Spruce Tree House Alcove. The nose of the alcove contains a thin arch delineated by a persistent curved crack (called Richardson crack). Rockfalls from the arch and adjacent rock surfaces have shown the need for a new assessment of arch stability and additional support efforts.

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Python in Itasca Software
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Live in-person introductory training course. This course provides an overview of the capabilities and features of Rhino3D CAD software ... Read More
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