Construction

Sennebogen at Sydney Opera House

613 crawler works underground at iconic building

Contractor John Holland Group has deployed the compact crawler crane underground for this project.

Contractor John Holland Group has deployed the compact crawler crane underground for this project.

A Sennebogen 613 crawler is at work in the basement of the Sydney Opera House, one of Australia’s most popular landmarks. The architectural icon receives more than 8.2 million visitors each year.

Currently the substrate of the Opera House, which was built in 1973, is being extensively renovated and a new underground supply network is being installed.

Contractor John Holland Group has deployed the compact crawler crane underground for this project.

The project is designed to relieve the traffic situation in the congested area around the Opera House, where there are as many as 1,700 performances each year and with the surrounding businesses and bars making it a highly frequented tourist spot.

The John Holland Group was commissioned as part of the $100 million project, to move the heavy-load traffic underground, in order to make the open area in front of the Opera House safer and more clearly arranged for pedestrians. By 2014 an underground loading area and new entry routes, as well as a sewer with storage capacity and overflow for possible storm tides, will be provided.

The newly delivered crane is being used in a mantter that fully exploits it strengths, particularly in these confined conditions.

With a height of merely 2.90 metres, and a maximum length of 6.2m, in retracted status, the machine is particularly maneuverable, thanks to crawler travel gear, and with the telescoping undercarriage it is always safe and stable.

In this version, as a 16 tonne telescopic crane with crawler running gear, the compact Sennebogen is unique in the industry. Combined with a drilling rig, the crane is used for establishing the foundations of the sub-construction. To do this the 613 R lifts the approximately 3 tonne steel mesh netting pipes into the bores. The crane can be conveniently moved even under load. This means that it can also be used for moving heavy components and material. The flexibility of the machine pays for itself, particularly in the confined environment. The 613 R is powered by a 91 kW Deutz diesel engine and is equipped with a 35 kN winch. Thus safe working loads to 16 t are easily possible.

The elevating, comfortable Multicab offers the operator the best overview of the implementation area and valuable added safety that is advantageous in the confined spatial conditions.

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