总部位于比利时的Sarens Rentals公司近期部署了两台大吨位的伸缩臂式起重机，用于法国奥赛N118国道沿线的吊装作业，那里正在为未来的地铁18号线建造高架桥。
应客户要求，Sarens利用其世界一流的设备车队和精湛的技术专长，为此次操作选用了最佳起重机：一台起重力为700吨的AC700以及一台起重力为650吨的NTM650。
两台伸缩臂式起重机于6月份在现场执行为期30天的操作，期间在每日清晨道路重新开放前的夜间工作，共需安装19根混凝土桥梁段。每根混凝土桥梁段的重量在54至66吨之间，尺寸长3.5米，宽2.8米，高3米。
为了对每块混凝土桥梁段进行吊装，AC700起重机还配备了24.5米的主臂和36米的变幅起重臂，另NTM650起重机配备了28.2米的主臂和31.5米变幅起重臂。此外，机组还另外选用了280吨的配重。然而，此次的挑战在于如何在一个十分受限的环境中安装配备有变幅起重臂的大吨位起重机。
项目前期起重机至项目现场的调遣也需要特别的规划，为了调遣这些起重机，国道被封闭了两个晚上。由于一座高3.8米的桥阻碍了NTM650起重机进入项目现场，N118国道不得不在夜间关闭，以便设备从反向道路逆行至工作区域。
此次共通过16辆卡车将设备调遣至项目现场，两台辅助起重机参与协助变幅起重臂的架设。Sarens很高兴能为这一特殊项目提供起重机，并期待着在短暂的几年内看到新的轻轨线路穿行于奥赛市。
Sarens Rentals recently deployed two high-capacity telescopic cranes for a lifting operation along the French national road N118 in Orsay, where a viaduct is being constructed for the future metro line 18.
At the request of client, Sarens drew on its world-class fleet of equipment and unparalleled technical expertise to recommend the optimal cranes for the job: a 700-tonne capacity AC700 and 650-tonne NTM650.
The two telescopic cranes stayed on-site for 30 days in June, working by night to install 19 concrete beams before the road reopened to traffic each morning. Each concrete beam weighed between 54 and 66 tonnes and measured 3,5m long, 2,8m wide, and 3m high.
To lift each of the segments, the AC700 was configured with a 24,5m main jib and 36m variable boom, while the NTM650 had a 28,2m main jib and 31,5m variable boom. Additionally, 280 tonnes of counterweight were used. The challenge, however, was installing the high-capacity cranes with variable booms in a highly restricted environment.
Transporting the cranes to the project site also required special planning, and the national road was closed for two nights to allow for their delivery. Because a 3,8m-high bridge prevented access to the project site for the NTM650, the N118 had to be closed at night to allow the equipment to reach the work area from the opposite direction.
In total, 16 trucks transported the equipment to the project site, and two auxiliary cranes took part in setting up the variable flights. Sarens was pleased to provide the cranes for this special operation, and looks forward to seeing the new metro line passing through Orsay in just a few short years. |
发表于 2022-10-9 15:44
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