Liebherr exhibits high-productivity cranes in Dubai

Four Liebherr cranes are currently operating at Expo Village in Dubai, United Arab Emirates. With a vibrating hammer operated by its own engine, one of them is responsible for pounding the ground while displaying a productivity up 20%.

Liebherr Middle East FZE and Dutco Balfour Beatty have made modifications to a crane from the German manufacturer used to pound the ground at Expo Village in Dubai, United Arab Emirates: a vibrating hammer, powered by an HS engine 8100 HD of 100 tons, productivity gains of around 20%. The crawler crane therefore uses its own engine power to operate the hammer, and install the envelopes of the batteries. At the sides, other Liebherr cranes work together: two HS 8050 HD units of 50 tons are used for steel cages, and another LR 1130 unit with a maximum load capacity of 197 tons is also present on site. Entrepreneur Dutco Balfour Beatty has 6 months in front of him to complete the shelling and then foundations of the Expo Village site, but table over 4 months and a half thanks to this modification of the HS 8100 HD. This avoids the need to use a separate power supply, since the hammer and the crane are powered by one and the same motor, that of the machine. A configuration that saves time, energy, weight, maneuverability and manpower.

Dutco Balfour Beatty is to produce 1,900 piles, with a depth of between 15 and 26 m, with diameters of 1000 mm, 900 mm and 750 mm. The soil is composed of sand on the first 4 meters, with mixed rocks, then a ground water table about 7 m below the surface. " The speed at which we are able to work has been increased due to the vibrating hammer configuration ," says Tamer Shalash, Director of Engineering at DBB. " We are working on 24-hour cycles, and our highest pile installation rate was 43 piles in one cycle. Using this configuration, we save up to six minutes per battery. During a cycle, we can actually earn two or three hours. "