Changing a flat tyre on heavy machinery is one of underground mining’s most hazardous and time-consuming maintenance tasks, often taking up to 12 hours to complete in confined spaces with sloped surfaces.

As part of a scheduled maintenance program, several processing units were planned to be shut down at a major refinery in North America that produces over 100,000 barrels of petroleum per day.

Çal?k Enerji is constructing a new simple-cycle power plant with a 542 megawatt capacity in Khoms, Libya. The Sarilar Group was tasked with installing a GE gas turbine weighing approximately 280 tons and a GE generator weighing approximately 214 tons. Installation required lifting the turbine and generator over 5 meters high and lowering into position on a concrete foundation.

Renovation of a historic building in Georgia's capital required the foundation to be repaired after it had sunk into the ground. The 100-year-old building needed to be lifted 3.4 meters onto pylons in order to be renovated.

Vesuvius processes the bricks which are used to the line the interior of an industrial furnace. The bricks begin in a "soft" state and need to be compressed, hardened and heated before they are installed in a furnace. A steel box is filled and compressed hardening the bricks. After compression the bricks stick to the steel fixture and a significant amount of force is needed to release the bricks from the steel fixture.

Hydraulik spielt eine wichtige Rolle beim Bau der neuen San Francisco Bay Bridge

Constructed in 1951, the John Greenleaf Whittier Bridge is currently in the process of being replaced by a new bridge compliant with current safety standards. The high traffic bridge connects Newburyport and Amesbury via I-95 over the Merrimack River. Walsh Construction is employing a rail mounted gantry crane system to simplify the placement of the steel bridge girders and precast deck to create the approach spans. Two 6 foot tall, 960 foot long temporary support steel box girders will be launched across temporary piers to create a rail system for the gantry crane to operate on during the approach span construction. The steel box girder arrangement will be moved after the placement of each approach span. It’s critical that the two 550 ton temporary steel support box girders move in unison in order to prevent binding or misalignment of the gantry crane operating on top of the rail system.

A Siemens gas turbine arrived at the Samsun Sea Port destine for a new 600MW natural gas combined cycle power plant in Samsun, Turkey. The 482 ton turbine needed to be lifted and loaded onto a SPMT in order to be transported to the Cengiz Enerji power plant.

The maintenance teams at the Wallumbilla Gas Treatment Facility were assembling several gas processing and treatment pipelines. Each flange bolt required a precise amount of tension in order to ensure a leak free connection.

Gotowski constructed a 200 meter long cable-stayed "University Bridge" to connect two parts of Bydgoszcz separated by the Brda River. The bridge's design requires the erection of two 68 meter tall pylons (towers) to support the bridge deck. Constructed in sections, the pylons weighed 90 to 130 tons and needed to be positioned with precise accuracy.

No one would call the temporary bridge that was constructed in 2002 over the Fore River between Quincy and Weymouth, Mass., a work of art. The bridge replaced a 1936 Art Deco gem when it could no longer safely carry the 32,000 cars that cross the river each weekday.