35 JULY 2025 WorldWide Drilling Resource® A New Administration Building Adapted from Information by BAUER The former Landschaftsverband Rheinland (LVR) building on Ottoplatz, which accomodated employees of LVR for over 20 years, is making way for a new administrative structure in the vibrant Deutz district of Cologne, Germany. Before this new 18-story edifice can rise into the skyline, extensive groundwork is essential. This is where BAUER Spezialtiefbau GmbH stepped in, having been chosen to excavate a 26-foot-deep pit - a task that demands not only technical know-how but also meticulous precision and seamless collaboration across various disciplines. The specialized foundation work is slated for completion by early 2026, with the overall project expected to wrap up by 2028. “Constructing the excavation pit for the new LVR building requires a range of specialized foundation engineering methods,” remarked Moritz Hahn, Project Manager at BAUER Spezialtiefbau. For example, on the northern side, a continuous pile wall featuring wood and shotcrete paneling strengthens the excavation pit, while a secant pile wall has been erected on the western side. Meanwhile, the eastern and southern boundaries take advantage of the existing walls from the previous underground garage, which have been reinforced with jetgrouted materials to support a deeper excavation base that will be developed in the future. “If several hundred very heavy machines are working on the supported ceilings of an underground garage, the utmost precision is necessary. No mistakes can be made,” explains Hahn. At the site of the new LVR building project, a remarkable array of heavy machinery is in operations. This includes the BAUER BG 24 H, which utilizes the kelly drilling method to create bored piles with diameters of up to 2880 feet. In addition, the KLEMM drilling rigs, KR 806 and KR 401, are adept at installing ground anchors in tight spaces. Complementing this equipment is the RG 16 T from RTG Rammtechnik GmbH, employed for various vibration works. Throughout the construction phase, innovative solutions are implemented to facilitate a seamless workflow. A digital construction diary tracks the development of the project, while the field data application aids in creating accurate drilling logs. Additionally, digital progress reports provide ongoing documentation of all internal processes. This approach transforms a complex construction site into a data-driven precision project, ensuring every detail is meticulously managed and nothing is left to chance. In a construction project of this scale, precision is paramount - every millimeter matters. With the aid of cutting-edge digital tools, all processes can be managed with remarkable efficiency. CONST 2025 Booth 1521
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