construction pit, metro building, excavation site, underground subway, sheet pilings, Amsterdam city, North side, river IJ, civil engineering, modern building, techniques

construction pit, metro building, excavation site, underground subway, sheet pilings, Amsterdam city, North side, river IJ, civil engineering, modern building, techniques
construction pit, metro building, excavation site, underground subway, sheet pilings, Amsterdam city, North side, river IJ, civil engineering, modern building, techniques
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