Manitowoc Work at Prince Edward Island Seawall A Manitowoc 16000 helped in the con- struction of a seawall in Charlottetown, Prince Edward Island, Canada. The seawall will reclaim land for the construction of the PEI Convention Center, which is being built by the Charlottetown Area Development Corp. and overseen by local general contractor Bert & MacKay Construction. The 16000, owned and operated by Irving Equipment the pile-driving subcontractor, was initially used to drive sheet piling forms for the seawall base. While typical pile driving in marine applications might require a barge-mounted crane, the size and capacity of the 16000 allow it to work on land, operating at radii of between 125 ft (38.1 m) and 180 ft (54.9 m). Victor Murty, project manager for Irving Equipment, says that operating a large crawler crane from land for these marine applications help mitigate weather, tidal influences and other environmental considerations. Even though the 16000 has higher rental rates than typical cranes used in pile For the pile driving, the crane worked with 247 ft (75.3 m) of main boom, a wind tip attachment and a vibratory-hammer to drive the piles. The wind tip provides greater offset and keeps the hammer and sheet pile away from the boom during installation. When the sheet piling was complete, the 16000 helped another subcontractor install the whalers that support the seawall. For this work, the crane again worked at the same radii. The Manitowoc 16000 is a 400 tonne The Manitowoc 16000 driving, it can be a competitive choice for marine applications, according to Murty, adding that there are savings if one doesn’t have to mobilize barges. It is also easier to access materials from land. (440 ton) capacity crane that is often used for wind turbine erection. Over 85% of 16000s are sold for wind turbine appli- cations, including the crane used in this project. But the adaptability of the crane’s configuration allows Irving Equipment to expand its use much beyond wind turbine erection. Irving Equipment purchased the 16000 used on this project from Shawmut Equipment, a Manitowoc dealer based in the New England region of the U.S., which also has a branch in Canada. Liebherr Piling and Drilling Rig at Jakarta Airport Menard is in Indonesia working for main contractor PT Adhi Karya at Soekarno Hatta International Airport in Jakarta. The project involves ground improvement at a 65,000 m² (70,000 sq ft) area, an extension of the Apron Pier at Terminal 3. The aim is to reach ground bearing capacity of CBR by 6% to carry the load of aircrafts, including jumbos, for many years to come. Menard chose the Controlled Modulus Column (CMC) and used a Liebherr LRB 155 hydraulic multi-purpose piling and drilling rig. The project was due to be completed in late 2011. Menard completed 14,112 piles with a diameter of 320 mm (13 in) and depths between 2.2 m (7 ft) and 12.5 m (41 ft). They are working in 10 hour shifts and are able to complete approximately 200 piles per day on average. One of the reasons PT Adhy Karya chose Menard to complete this work was that Menard could document and proof Liebherr PDE process data recording system, which is installed in the LRB 155. On a colour touchscreen in the operator’s cab, current process data, e.g., location, depth, rotary torque pressure or penetration/ pulling speed are displayed in real time. The operator is constantly informed about the process and able to control it. All data are recorded on a memory card in the operator’s cab. With the aid of the process data reporting the quality of each single pile with the ® the PDE system can be managed on a PC and evaluated extensively. SCULI PDR can generate individual jobsite protocols that can be freely configured, displayed in a variety of languages and either printed out directly or stored as PDF file. Phases 2 and 3 are scheduled for this software SCULI PDR, the data generated by ® year, 2012. DEEP FOUNDATIONS • JAN/FEB 2012 • 83
