Resources

Some of the world’s most challenging roads can be found in the Jammu and Kashmir regions of the Himalayas. NHIDCL engaged EMerald Geomodelling to conduct geoscanning surveys to unveil ground conditions in the alpine regions of India for tunnel pre-investigations.

Nye Veier received assistance from Emerald Geomodelling before building and designing the new highway between Kvithammer and Åsen. Using airborne geoscanning, EMerald Geomodelling was able to collect data for large areas in a short amount of time, saving the project an estimated 250 million NOK.

In 2021, EMerald Geomodelling was engaged by RUMO Logística, the largest railway company in South America, to accurately characterize the real geological conditions of the planned railway route. By using both geophysical data and existing data combined with EMerald Geomodellings proprietory machine learning software, EMerald could provide RUMO with suggestions of where to focus their follow-up investigations.

The Flåm valley is a large and unstable area that is difficult to assess and that appears to be driven by a deep-seated sliding mechanism. The municipality and regional hydroelectric company E-CO Vannkraft were evaluating the potential of draining the unstable area to a nearby hydropower reservoir. EMerald Geomodelling was engaged to provide further geophysical inputs.

Assisting First Quantum Minerals Ltd (FQML) in their mining project by using the unique interface detection algorithm to generate a detailed model showing the interface between saprolite and hard rock, providing inputs into saprolite elevation and resistivity.

In the aftermath of the devastating quick clay landslide in Gjerdrum in late 2020, The Norwegian Water Resources and Energy Directorate (NVE) started conducting surveys to assess quick clay zones. EMerald Geomodelling was engaged to perform airborne geoscanning to effectively get an overall overview of the ground conditions.

Assisting SN Power with geotechnical surveys to better understand the rock formations in underground structures, especially for hydropower tunnel projects.

Within three days, EMearald Geomodelling managed to map the ground conditions in a 500 km area. This gave the contractor more security in planning the road alignment of the massive road project.

For the first time ever, the rock conditions of the challenging Himalayas were mapped with the use of helicopter geoscanning and exploratory drilling follow-up. This pioneering work, done in 2013, made it possible to analyse the ground conditions in practically inaccessible areas.

For all big road and tunnel projects, knowledge of the ground conditions can be what makes or breaks it. Therefore, a thorough drilling campaign is required to get the necessary information before the construction work starts… Or at least, that's been true in the past.

"Working with EMerald Geomodelling saved us 250 million NOK in a single project and reducing drilling by 30%. The elimination of uncertainty about what's going on under the surface was priceless."

This paper show how automatic, machine learning (ML) based, interpretation of densely sampled geophysical data is feasible and how it can be conducted in a time efficient manner

The paper presents how time domain electromagnetic data from a small airborne prototype system was successfully used for geotechnical ground investigations at a road construction site in Central Norway.

This conference paper presents a case study done in Mato Grosso, Brazil, where EMerald together with RUMO Logística, carried out large-scale soil investigations for greenfield railways using airborne geoscanning

A technical article illustrating the applicability of airborne geoscanning surveys by comparing ANN to earlier interpretation techniques.

This technical article address the mapping of top of rock under extensive thallus along Flåmsdalen, involving simple resistivity threshold extraction.

An article presenting 3D image of base of rock slide, 3D signature of weakness / contact zone crossing potential hydropower tunnel.

This article combine airborne electromagnetics and drillings pre-machine learning, showing the value of AEM through two case studies.

A technical article showing geophysics comparing airborne electromagnetic data and surface electrical resistivity tomography.

This article use examples from projects in Norway and India, to illustrate how airborne geocsanning is able to reveale weakness zones, weak rock types and lack of rock cover.

A paper on Mato Grosso case study in Brazil, which is the first successful example of AEM in an infrastructure project in a tropical climate.

This Journal of Rock Mechanics & Tunneling Technology article highlights the practical use of advanced airborne geoscanning for tunnel planning in the Himalayas.