How Sri Lanka’s leader in project logistics successfully relocated 300 metric tonnes from -400m below the Earth’s Surface

Logistics in Sri Lanka > Case Studies > How Sri Lanka’s leader in project logistics successfully relocated 300 metric tonnes from -400m below the Earth’s Surface

During the year 2012, a complex, high-precision logistical operation of gargantuan proportions was flawlessly executed in Sri Lanka by Advantis.

Published on Friday 13th November, 2015 at 9:40 am by Advantis Editorial Team

During the year 2012, a complex, high-precision logistical operation of gargantuan proportions was executed in Sri Lanka by Advantis, when it undertook to deliver two Timel Borhg Machines to the Uma Oya Multi-purpose Development Project. The giant mechanized boring machines from Germany, which were well above normal logistics dimensions, were cleared from the Port of Colombo, transported to Ella-Wellawaya site on a fleet of specially-modified carriers, which was a first of its kind exercise in this country.

At the beginning of March 2015, one of the machines had completed its first phase of drilling in Wellawaya, Sri Lanka and had to be dismantled and relocated to another project site in Dyrabba, where the components were carefully handled and transported out of the cavern with precision by Advantis.

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Advantis took another step forward in Logistics by providing a solution to bring the TBM machine out of the cavern a service no local logistic company could provide. The use of conventional moving equipment was not an option as this project required highly specialized equipment and ‘zero error’ precision coordination due to inadequate space issue it was decided that the safest way was to dismantle the machine. This was decided after having discussions with Herrenknecht ACS, a German manufacturer of tunnel boring machines who was under contract by cutomer.

The project team conducted a technical study of the TBM components to comprehend the characteristic and the dimensions. Based on the information gathered a site survey was carried and a detailed disassembly, handling and transportation plan was prepared. Upon completion of the survey, it was determined that the most suitable transportation equipment would be a (Jif-axle hydrat]ic trailer, including the use of multiple heavy duty pullers, currently only available through Advantis.

There were 18 components to be transported out of the cavern after dismantling the TBM machine. The weight of the heaviest component was 39 Tones and it had to be loaded onto the center of the Oil-axle hydraulic trailer with precaution inside the cavern which was 5.0 meters in height and sq meters in width. As the surface of the cavern was muddy it was difficult for the hydraulic trailer and heavy duty pullers to move. Special weight boxes were made to be placed on the heavy duty pullers to create more friction between the surface tires so it could move forward easily.

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Three heavy duty pullers had to be used to power the loaded Oq-axle hydrauåic trailer as the cavern tunnel was in an elevated angle with narrow turns. The heavy duty pullers had to be controlled and driven in limited space which required extreme patience and experience. Advantis managed to transport all the components of the TBM machine out of the cavern in a total of 16 trips, within a short period of time.

Advantis yet again proved that capability to provide an exceptional service by managing the whole operation with the use of in-house equipment, experience and expertise, using resources at hand and keeping under budget without any additional expenses.

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