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A hard climb over two days to get logging equipment up in the Himalayas

The Robertson Geo Agent Representative, Aimil, recently commissioned a 500m Winch, High Resolution Acoustic Televiewer (HRAT), High Resolution Optical Televiewer (Hi-OPTV) and Triple Sonic system, supported by the GeoCAD® software, in the foothills of the Himalayas for its client Nepal Electricity Authority (NEA). The trek to the job site involved a 5hr climb over two days and an overnight stop to deliver equipment for the initial training.

As part of the nationwide drive for rural household and irrigation electrification, the logging system will play a key part in the planning and monitoring of new hydropower plants in the region.

The Soil, Rock & Concrete Laboratory (SRCL) of Bhagwwanpaun Swyambhu Nepal carries out extensive geotechnical investigations to assess the sub-surface condition and use an array of techniques including 2D Electrical Resistivity Tomography, Core drilling, SPT & CPT testing, and now Geophysical Logging.

In a region prone to earthquakes, such studies are crucial to the success of the project. The Robertson Geo tools will provide detailed structural and fracture analysis of the formation, as well as an indication of rock strength and elastic properties. With liquefaction previously observed in some areas with earthquake potential of above magnitude 6 (the 2015 earthquake had a magnitude of 7.8 with aftershocks for 7.3), Aimil has also recommended the client considers adding the PS Logger® to its logging arsenal.

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